A shackle serves as a critical connector in heavy-duty lifting and rigging operations. Powerful Machinery manufactures certified shackles for lifting and rigging, trusted by professionals worldwide.
The global market for these components is expected to reach $8.08 billion by 2025, driven by demand and technological progress. Many industries rely on certified shackles for safety and efficiency.
Industry | Description of Use |
|---|---|
Construction | Used to lift heavy materials and connect machinery. |
Shipping | Secures cargo and equipment during transit. |
Oil and Gas | Vital for lifting and moving heavy apparatus. |
Key Takeaways
A shackle is a U-shaped metal connector essential for lifting and rigging operations, ensuring safety and efficiency.
Select the right type of shackle based on the load direction; bow shackles handle multi-directional loads, while dee shackles are best for single-direction pulls.
Always inspect shackles before use for signs of wear, deformation, or damage to maintain safety during lifting operations.
Choose shackles made from appropriate materials; stainless steel offers excellent corrosion resistance for marine environments, while alloy steel provides strength for heavy lifting.
Understand the working load limit (WLL) of shackles; never exceed this limit to prevent accidents and equipment failure.
Proper storage of shackles in a dry, organized area extends their lifespan and maintains safety standards.
Consult experts for shackle selection to ensure compatibility with rigging components and compliance with safety regulations.
Regular maintenance and testing of shackles are crucial for reliable performance in demanding lifting and rigging applications.
Shackle Meaning
Definition
A shackle is a U-shaped metal connector designed for lifting, rigging, and securing loads. Industrial standards define a shackle as a metal link with an opening secured by a clevis or bolt pin. Some designs feature a hinged metal loop with a locking pin mechanism.
Every standard shackle consists of four main components: the bow, which forms the curved body; the ears, which are the threaded parts for the pin; the pin itself, a detachable steel bolt; and the shoulder, which is the part of the pin that contacts the ear.
This simple yet robust construction allows the shackle to serve as a reliable link in demanding environments.
Function
The primary function of a shackle is to act as a critical connector in lifting and rigging operations. It links lifting devices, such as cranes or hoists, to the loads being moved. The shackle also connects slings, ropes, or chains to the load, ensuring a secure and stable attachment.
Proper handling and inspection of shackles are essential for safety. Operators must store shackles correctly, inspect them before each use, and select the right type and size for the job. The load should always pass through the shackle’s centerline to maintain stability and prevent accidents.
The strength and reliability of the shackle play a vital role in effective load management, supporting the safe movement of heavy objects in construction, marine, and industrial settings.
Tip: Always select a shackle that matches the load requirements and application to ensure maximum safety and efficiency.
Appearance
A shackle typically features a U-shaped or bow-shaped body with a removable pin or bolt that closes the open end. The bow forms the main curved section, while the ears extend from the ends of the bow to hold the pin. The pin can be a screw type, bolt type, or round pin, depending on the application.
Shackles come in various sizes, ranging from small models for light-duty tasks to large, heavy-duty versions for industrial lifting. The surface may appear polished, galvanized, or coated, depending on the material and intended use.
Most shackles display clear markings that indicate their working load limit and manufacturer, ensuring traceability and compliance with safety standards. This straightforward yet effective design makes the shackle easy to identify and use in a wide range of environments.
Materials
Shackles rely on high-quality materials to deliver strength, durability, and safety in lifting and rigging operations. Manufacturers select materials based on the demands of the application, environmental conditions, and required load capacity.
Powerful Machinery uses only certified materials to ensure every shackle meets international standards for performance and reliability.
Common Materials Used in Shackles:
Carbon Steel:
Carbon steel provides excellent strength and toughness. Manufacturers often use it for general-purpose shackles in construction and cargo handling. This material resists deformation under heavy loads and offers cost-effective performance.Alloy Steel:
Alloy steel contains additional elements such as chromium, nickel, or molybdenum. These elements increase the steel’s strength and fatigue resistance. Alloy steel shackles handle higher working load limits and suit demanding industrial environments.Stainless Steel:
Stainless steel stands out for its superior corrosion resistance. Powerful Machinery’s G2150 and G2130 shackles use 304 or 316 stainless steel, making them ideal for marine, chemical, and outdoor applications. Stainless steel maintains its integrity in wet, salty, or corrosive conditions.Galvanized Steel:
Galvanized steel features a protective zinc coating that prevents rust. This material suits outdoor use and environments where moisture exposure occurs. Galvanized shackles offer a balance between cost and corrosion resistance.
Note:
Material selection directly impacts the safety and longevity of shackles. Stainless steel and alloy steel provide the highest reliability for critical lifting tasks.
Material Comparison Table
Material | Strength | Corrosion Resistance | Typical Applications |
|---|---|---|---|
Carbon Steel | High | Moderate | Construction, cargo handling |
Alloy Steel | Very High | Moderate | Heavy industry, mining |
Stainless Steel | High | Excellent | Marine, chemical, outdoor |
Galvanized Steel | Moderate | Good | Outdoor, general rigging |
Powerful Machinery engineers select materials based on client requirements and project specifications. For the marine and chemical industries, they recommend stainless steel shackles due to their resistance to rust and chemicals.
In construction and heavy lifting, alloy steel shackles provide the necessary strength and durability. Galvanized steel suits temporary outdoor projects where cost efficiency matters.
Manufacturers test each shackle material to verify compliance with safety standards. Powerful Machinery’s products undergo rigorous inspection and certification, ensuring every shackle performs reliably in its intended environment.
Material markings on each shackle help users identify the type and ensure proper selection for the job.
Selecting the right material ensures the shackle withstands environmental challenges and heavy loads. Powerful Machinery’s commitment to certified materials guarantees safety, performance, and long-term value for every lifting and rigging application.
Different Types of Shackles
Shackles play a vital role in rigging and lifting operations. Understanding the different types of shackles helps professionals select the right connector for each job. International standards organizations recognize several main types, each designed for specific applications and load requirements.
Type of Shackle | Description |
|---|---|
Bow Shackle | Features a wide, rounded body for multi-directional loading. |
Dee Shackle | Has a straight, narrow profile for single-direction loads. |
Grab Shackle | A variation of the dee shackle with a countersunk pin for use with grabs. |
Bow Shackles
Features
Bow shackles, also known as anchor shackles, have a large, rounded “O” shape. This design allows them to handle loads from multiple directions without bending or distorting.
The wide internal clearance makes bow shackles ideal for connecting several slings or chains at once. Anchor shackles come in various sizes and are available with screw pins or bolt-type pins for secure fastening.
Key features include:
Ample internal space for multi-leg connections.
Ability to accommodate angular loading.
Robust construction for heavy-duty lifting shackles.
Available in carbon steel, alloy steel, and stainless steel.
Feature | Bow Shackles | Dee Shackles |
|---|---|---|
Load Direction | Handles loads in multiple directions and angles | Best for single-direction loads |
Suitability for Applications | Ideal for transportation and construction | Suited for industrial rigging and towing |
Load Capacity | Available in various sizes for flexible lifting | Comes in multiple sizes for straight-line lifting |
Strength | Strong under multi-directional forces | Sturdy for inline force applications |
Limitations | A bulky design can be awkward in tight spaces | Limited lateral movement can lead to quicker wear |
Note:
Bow shackles provide flexibility in rigging setups but may not fit well in confined spaces due to their bulkier design.
Applications
Professionals use bow shackles in applications that require connecting multiple lifting slings or handling loads from different angles. These anchor shackles excel in construction, marine, and transportation industries.
For example, workers often use bow shackles to lift steel beams or secure heavy machinery, where the load direction may change during movement. Their versatility makes them a top choice for general engineering and heavy lifting shackles.
Dee Shackles
Features
Dee shackles, sometimes called d shackles or chain shackles, have a straight-sided “D” shape. This design focuses the load along a single axis, providing maximum strength for straight-line pulls.
Dee shackles are more compact than bow shackles, making them suitable for tight spaces or applications where lateral movement is minimal. Anchor shackles in this category often feature a screw pin or bolt for secure closure.
Key features include:
Narrow profile for single-direction loading.
High strength for inline force applications.
Available in multiple sizes and materials.
Ideal for use with hook eyes and eyebolts.
Dee shackles offer stability and strength for straight pulls but may wear faster if subjected to side loading.
Applications
Dee shackles are essential in rigging setups where the load moves in a straight line. Workers use these anchor shackles to secure heavy chains on ships, connect lifting devices to cargo, or attach slings to fixed points.
Their compact design makes them suitable for industrial rigging, towing, and marine operations. D shackles provide reliable performance in environments where space is limited and the load direction remains constant.
Safety Shackles
Powerful Machinery G2130 Shackle
Powerful Machinery offers the G2130 shackle, a premium safety shackle designed for demanding rigging and lifting shackles applications. This anchor shackle features a robust stainless steel body and a safety pin mechanism that prevents accidental loosening.
The G2130 shackle meets international safety standards, making it suitable for both temporary and permanent installations in marine, construction, and industrial environments.
Key benefits of the G2130 safety shackle:
Made from 304/316 stainless steel for superior corrosion resistance.
Safety pin design ensures secure connections under heavy loads.
Available in a range of sizes and customizable options.
Certified for use in overhead lifting and critical rigging tasks.
Safety Pin Design
Safety shackles stand out due to their advanced pin security. The bolt, nut, and cotter arrangement in these anchor shackles resists both axial and torsional loading. This design prevents the pin from rotating or loosening during use, which is crucial for overhead lifting and high-risk rigging operations.
Bolt, nut, and cotter pins provide the most secure pin arrangement.
Safety shackles handle rotation and warping better than standard screw pin shackles.
These types of shackles are preferred for critical applications where safety is paramount.
Tip:
Always choose safety shackles with a bolt, nut, and cotter pin for overhead lifting or when working in environments with vibration or movement.
By understanding the different types of shackles, including bow shackles, dee shackles, and safety shackles like the Powerful Machinery G2130, professionals can ensure safe and efficient rigging operations.
Selecting the right anchor shackles for each application reduces risk and increases productivity in lifting and rigging environments.
Wide Body Shackles
Features
Wide-body shackles feature a larger bow and increased internal width compared to standard shackles. This design allows for better load distribution and reduces stress on synthetic slings and wire ropes.
The wide body shape minimizes wear and tear, extending the lifespan of connected lifting equipment. Manufacturers often use high-strength alloy steel or stainless steel to ensure durability and safety.
Key features of wide-body shackles include:
Increased internal width for improved load distribution
Reduced pressure points on slings and ropes
High working load limits for heavy-duty applications
Robust construction for demanding environments
Feature | Benefit |
|---|---|
Wide Bow | Minimizes sling damage |
Heavy-Duty Material | Ensures long-term reliability |
Large Pin Diameter | Enhances strength and stability |
Smooth Finish | Eases handling and installation |
Wide-body shackles provide superior performance when working with synthetic slings or multi-leg lifting setups.
Applications
Wide-body shackles excel in applications where load protection and stability are critical. Professionals use them in construction, offshore lifting, and heavy transport.
These shackles often connect large synthetic slings to cranes or hoists, ensuring even force distribution. Wide-body shackles also support multi-leg sling assemblies, reducing the risk of sling failure.
Common applications:
Offshore oil and gas lifting operations
Heavy machinery transport
Multi-leg sling assemblies in construction
Marine rigging with synthetic slings
Wide-body shackles help prevent sling damage and improve safety in high-stress lifting environments.
Piling Shackles
Features
Piling shackles are specialized connectors designed for handling steel piles and sheet piles during installation. Their elongated body and reinforced pins provide extra clearance and strength. The design accommodates the unique shape and size of piling materials, ensuring secure attachment and easy release.
Distinct features of piling shackles:
Extended body for increased reach and clearance
Reinforced pin for higher load capacity
Durable construction for repetitive use
Easy-to-operate pin mechanism
Feature | Description |
|---|---|
Elongated Shape | Fits around large steel piles |
Heavy Pin | Handles high-impact loads |
Rugged Build | Withstands harsh job-site conditions |
Piling shackles offer reliable performance in environments where standard shackles may not fit or provide enough strength.
Applications
Piling shackles play a vital role in civil engineering and marine construction. Workers use them to lift, position, and secure steel piles during foundation work. These shackles also assist in driving sheet piles for retaining walls and waterfront structures.
Typical applications:
Lifting and placing steel piles in foundation projects
Securing sheet piles for marine construction
Handling large structural components in bridge building
Piling shackles ensure safe and efficient movement of heavy piling materials, supporting the integrity of large-scale construction projects.
ROV Shackles
Features
ROV shackles are engineered for use with remotely operated vehicles (ROVs) in subsea operations. Their unique design includes oversized handles or attachment points, allowing robotic arms to grip and manipulate the shackle underwater.
Manufacturers use corrosion-resistant materials such as stainless steel to withstand harsh marine environments.
Key features of ROV shackles:
Large, easy-to-grip handles for robotic operation
Corrosion-resistant construction for subsea use
Secure locking mechanisms to prevent accidental release
High-visibility markings for underwater identification
Feature | Purpose |
|---|---|
Oversized Handle | Facilitates ROV manipulation |
Stainless Steel Build | Resists saltwater corrosion |
Locking Pin | Ensures secure underwater connections |
ROV shackles enable safe and precise handling of loads in deepwater projects.
Applications
ROV shackles support offshore oil and gas, renewable energy, and marine salvage operations. Technicians use them to connect lifting lines, secure subsea equipment, and assist in underwater construction. The design allows ROVs to perform complex tasks without human intervention.
Primary applications:
Subsea lifting and rigging with ROVs
Installation of underwater pipelines and structures
Marine salvage and recovery operations
Offshore wind farm construction
ROV shackles enhance safety and efficiency in challenging underwater environments, making them essential tools for modern marine engineering.
Stainless Steel Shackles
Powerful Machinery G2150 Shackle
Powerful Machinery manufactures the G2150 shackle for professionals who demand reliability in harsh environments. This shackle uses 304 stainless steel, which provides exceptional durability and strength.
The bolt-type design secures connections and prevents pin rotation, making it suitable for permanent installations. Engineers recommend the G2150 shackle for heavy-duty lifting and rigging tasks in marine, construction, and industrial settings.
The product comes in multiple sizes, allowing users to select the right option for their specific load requirements.
Model | Size (inch) | Working Load Limit (tons) | Weight (kg) |
|---|---|---|---|
PF0112-05 | 3/16 | 0.33 | 0.025 |
PF0112-25 | 1 | 6.00 | 1.960 |
The G2150 shackle meets international safety standards and undergoes rigorous testing. Powerful Machinery offers customization options to fit unique project needs. Customers value the shackle’s robust construction and long-term performance.
Tip:
For marine and chemical industries, select the G2150 shackle to ensure maximum corrosion resistance and safety.
Corrosion Resistance
Stainless steel shackles excel in environments where moisture, salt, and chemicals threaten ordinary steel components. The chromium content in stainless steel forms a protective layer, which resists rust and corrosion.
Powerful Machinery’s G2150 shackle maintains its integrity even after prolonged exposure to seawater or industrial chemicals. This feature makes stainless steel shackles ideal for marine operations, outdoor construction, and chemical processing plants.
Stainless steel shackles do not require frequent replacement.
The smooth finish allows easy cleaning and inspection.
Users experience fewer maintenance issues and longer service life.
Professionals choose stainless steel shackles when reliability and safety are critical. Powerful Machinery’s commitment to certified materials ensures every shackle performs under demanding conditions.
Synthetic Sling Shackles
Features
Synthetic sling shackles are designed for use with synthetic webbing slings and round slings. Manufacturers use high-strength materials such as alloy steel or advanced polymers to reduce weight and prevent damage to the sling.
The wide body and smooth surface minimize abrasion, which extends the life of synthetic lifting equipment. These shackles often feature a larger bow and rounded edges to distribute force evenly.
Key features include:
Lightweight construction for easy handling
Wide bow to prevent sling pinching
Smooth finish to reduce wear on synthetic fibers
High working load limits for heavy lifting
Synthetic sling shackles provide a safe connection point for synthetic slings, which are common in modern lifting operations.
Applications
Workers use synthetic sling shackles in industries where delicate or flexible lifting equipment is required. These shackles support lifting operations in wind energy, aerospace, and manufacturing. The design protects synthetic slings from sharp edges and excessive pressure, which reduces the risk of sling failure.
Common applications:
Lifting wind turbine blades with webbing slings
Handling aircraft components in assembly plants
Moving large machinery with round slings
Rigging operations in clean environments
Synthetic sling shackles help maintain the integrity of synthetic lifting gear and improve safety during complex lifts.
Long Reach Shackles
Features
Long reach shackles feature an extended body and pin, which provide extra clearance for connecting loads in hard-to-access areas. The elongated design allows users to reach around obstacles or attach to deep anchor points. Manufacturers use high-strength steel or stainless steel to ensure stability and durability. The pin remains secure under heavy loads, and the body resists bending.
Distinct features:
Extended length for increased reach
Robust construction for demanding tasks
Secure pin mechanism to prevent accidental release
Available in various sizes for different applications
Long reach shackles solve problems in environments where standard shackles cannot fit or provide enough clearance.
Applications
Professionals rely on long reach shackles in construction, marine salvage, and industrial maintenance. These shackles connect lifting devices to loads located in deep pits, narrow spaces, or behind barriers.
The design improves efficiency and safety by allowing workers to access difficult areas without compromising the integrity of the lift.
Typical applications:
Connecting to anchor points in deep foundations
Lifting submerged objects in marine salvage
Attaching to machinery in confined industrial spaces
Rigging operations in bridge and tunnel construction
Long reach shackles expand the possibilities for safe and effective lifting in challenging environments.
Shackle Components
A shackle consists of several critical components, each designed to ensure strength, safety, and reliability in lifting and rigging operations. Understanding the main parts of a shackle helps users select the right equipment for their specific needs and maintain safe working practices.
Bow
The bow forms the main curved body of the shackle. This U-shaped design provides a secure connection point between rigging elements, allowing for effective force distribution during lifts. The bow’s shape enables the shackle to handle loads from multiple directions, which is essential in complex rigging setups.
The size and thickness of the bow directly affect the working load limit and overall durability. In high-stress situations, such as industrial rigging or slacklining, the bow must withstand significant force without deforming.
Tip: Always check the bow for signs of wear or deformation before use to maintain safety.
Ears
Ears are the two protruding ends of the bow where the pin passes through. These parts of a shackle play a vital role in securing the connection. The ears must align perfectly to allow smooth insertion of the pin.
Their thickness and material contribute to the shackle’s strength and resistance to bending or cracking under load. Properly designed ears ensure that the shackle maintains its integrity, even when subjected to heavy lifting or side loads.
Pin Types
The pin is a removable steel rod that closes the open end of the shackle, locking the connection in place. Different pin types offer unique advantages for various applications. Selecting the right pin type is crucial for both safety and efficiency.
Pin Type | Description | Best Use Case |
|---|---|---|
Screw Pins | Easy to connect and disconnect, ideal for temporary jobs. | Quick rigging tasks |
Captive Pins | Remain attached to the shackle, preventing loss in marine environments. | Marine applications |
Bolt-Type Pins | Secured with a bolt/nut/cotter pin, providing strong security for heavy loads. | Long-term or heavy-duty applications |
Screw Pin
Screw pin shackles feature a threaded pin that users can quickly insert or remove by hand. This design makes them ideal for temporary rigging tasks where frequent assembly and disassembly are required.
Workers often choose screw pin shackles for jobs that demand speed and flexibility. However, they should avoid using screw pin shackles in situations with constant vibration, as the pin may loosen over time.
Bolt Type
Bolt-type shackles use a bolt, nut, and cotter pin to secure the connection. This configuration provides enhanced security and prevents accidental loosening, even in environments with heavy vibration or movement.
Bolt-type pins are best suited for long-term or permanent installations, such as structural lifting or critical rigging in construction and marine industries. The added safety features make bolt-type pins a preferred choice when stability is paramount.
Round Pin
Round pin shackles use a smooth, unthreaded pin secured by a cotter or split pin. This design allows for quick assembly and disassembly, making it suitable for light-duty or non-critical applications.
Round pin shackles are common in towing, tie-downs, and agricultural uses. While easy to use, they are not recommended for overhead lifting or situations where the load may shift unexpectedly.
Note: Always match the pin type to the application to maximize safety and performance. Regular inspections help detect wear, deformation, or cracks in all parts of a shackle.
By understanding the function of each component—the bow, ears, and pin types—users can ensure that every shackle delivers reliable performance and meets safety standards. Proper selection and maintenance of these parts of a shackle protect both equipment and personnel during lifting operations.
Shoulder
The shoulder of a shackle plays a crucial role in the overall strength and safety of lifting and rigging operations. This component sits at the junction where the pin meets the ear of the shackle.
The shoulder acts as a physical barrier, preventing the pin from moving too far into the shackle body. It also helps distribute the load evenly across the shackle, reducing stress on the pin and ears.
Key Functions of the Shoulder:
Load Distribution:
The shoulder ensures that the force applied during lifting spreads evenly across the shackle. This design prevents excessive pressure on a single point, which could lead to deformation or failure.Pin Retention:
The shoulder keeps the pin securely in place. It stops the pin from sliding or rotating unintentionally, which is especially important in applications with vibration or movement.Alignment:
The shoulder maintains proper alignment between the pin and the shackle body. This alignment reduces wear on the threads and helps the shackle perform reliably over time.Safety Enhancement:
By acting as a stop for the pin, the shoulder adds an extra layer of security. It minimizes the risk of accidental disengagement, which could cause dropped loads or equipment damage.
Tip:
Always inspect the shoulder for signs of wear, cracks, or deformation before each use. Even minor damage can compromise the integrity of the shackle and lead to unsafe conditions.
Shoulder Design in Powerful Machinery Shackles
Powerful Machinery engineers design the shoulder with precision. They use advanced manufacturing techniques to ensure each shoulder meets strict dimensional tolerances. The company selects high-quality materials, such as alloy or stainless steel, to provide maximum durability and resistance to impact.
Common Issues to Watch For:
Visible cracks or chips on the shoulder surface
Excessive wear or flattening of the shoulder edge
Misalignment between the shoulder and the pin
Inspection Checklist for the Shoulder:
Inspection Point | What to Look For | Action if Issue Found |
|---|---|---|
Surface Condition | Cracks, chips, or dents | Replace the shackle |
Wear Level | Flattened or worn edges | Remove from service |
Alignment | Pin fits snugly and evenly | Do not use if misaligned |
A well-maintained shoulder ensures the shackle performs safely and efficiently. Powerful Machinery shackles undergo rigorous quality checks to guarantee that every shoulder meets international safety standards. This attention to detail helps professionals trust their equipment in critical lifting and rigging tasks.
By understanding the importance of the shoulder, users can make informed decisions about shackle selection, inspection, and maintenance. This knowledge supports safer workplaces and more reliable lifting operations.
Shackles for Lifting and Rigging Applications
Shackles for lifting and rigging serve as essential connectors in many industries. Workers rely on these components to secure, lift, and move loads safely. Powerful Machinery designs shackles that meet strict safety standards and perform reliably in demanding environments.
Industrial Uses
Construction
Construction sites require strong and dependable shackles for lifting and rigging. Workers use shackles to connect lifting equipment to heavy loads such as steel beams, concrete panels, and machinery. These connectors help ensure that lifting operations run smoothly and safely.
Stainless steel shackles resist corrosion, making them suitable for outdoor construction projects. The ability to handle overhead lifting tasks makes shackles a preferred choice for building bridges, towers, and large structures.
Marine
Marine environments present unique challenges for rigging operations. Saltwater, moisture, and constant movement demand shackles with excellent corrosion resistance. Powerful Machinery’s stainless steel shackles perform well in these conditions.
Crew members use shackles for lifting loads onto ships, securing cargo, and managing anchor chains. The G2150 shackle, with its bolt-type design, prevents pin rotation and maintains secure connections during overhead lifting.
Marine professionals trust these shackles for lifting and rigging applications on docks, vessels, and offshore platforms.
Transportation
Transportation sectors depend on shackles for lifting and rigging to move heavy loads safely. Workers use shackles to attach lifting equipment to containers, vehicles, and machinery. These connectors help secure loads during transit and prevent shifting or damage.
Stainless steel shackles offer durability and reliability for repeated use. Powerful Machinery’s products support overhead lifting in warehouses, rail yards, and shipping terminals.
Cargo Handling
Cargo handling operations require shackles for lifting and rigging to manage diverse loads. Workers use shackles to connect slings, chains, and ropes to cargo. These connectors help lift, move, and secure goods in ports, distribution centers, and storage facilities.
The robust construction of the Powerful Machinery shackles ensures safe lifting operations, even with heavy or irregularly shaped loads. Stainless steel shackles provide long-lasting performance in environments where moisture and chemicals are present.
Note:
Shackles play a vital role in industrial lifting operations by providing secure connections and supporting the safe movement of loads.
Light Duty Uses
Tow Ropes
Tow ropes often rely on shackles for lifting and rigging to create strong links between vehicles or equipment. Drivers use shackles to attach tow ropes to recovery points, ensuring safe and efficient towing.
The compact design of dee shackles makes them suitable for light-duty tasks. These connectors help prevent accidental detachment during movement.
PPE
Personal protective equipment (PPE) sometimes incorporates shackles for lifting and rigging in safety harnesses and fall arrest systems. Workers use shackles to connect harnesses to anchor points, providing secure attachment during overhead lifting or rescue operations.
Stainless steel shackles offer reliability and resistance to wear, supporting worker safety in construction and industrial settings.
Recreational Rigging
Recreational activities such as sailing, climbing, and slacklining use shackles for lifting and rigging to secure ropes and equipment. Sailors rely on stainless steel shackles for rigging sails and managing loads on boats.
Climbers use shackles to connect safety lines and gear. The versatility of Powerful Machinery shackles makes them suitable for both professional and recreational rigging applications.
Powerful Machinery Product Applications
G2150 Shackle in Marine and Construction
The G2150 shackle from Powerful Machinery excels in marine and construction environments. Its 304 stainless steel construction provides outstanding corrosion resistance. Workers use this shackle for lifting loads in shipyards, offshore platforms, and building sites.
The bolt-type design prevents pin rotation, ensuring secure connections during overhead lifting. The G2150 shackle supports both temporary and permanent installations, making it a reliable choice for lifting and rigging applications.
G209 Shackle for Multi-Leg Slings
Powerful Machinery’s G209 shackle features a screw pin design and a rounded shape. This shackle handles loads from multiple directions, making it ideal for multi-leg sling assemblies. Workers use the G209 shackle in industrial rigging operations, marine lifting, and vehicle recovery.
The stainless steel construction resists corrosion and provides long-term durability. The G209 shackle supports safe and efficient lifting operations in environments where load direction may change.
Stainless Steel Shackles for Corrosive Environments
Stainless steel shackles from Powerful Machinery offer superior performance in corrosive environments. Workers use these shackles for lifting and rigging in chemical plants, marine facilities, and outdoor construction sites. The smooth finish allows easy cleaning and inspection.
Stainless steel shackles maintain their strength and integrity even after prolonged exposure to moisture and chemicals. These connectors help ensure safe lifting loads and reliable rigging operations in challenging conditions.
Product | Application Area | Key Benefit |
|---|---|---|
G2150 Shackle | Marine, Construction | Corrosion resistance, secure pin |
G209 Shackle | Multi-leg Slings | Multi-directional load handling |
Stainless Steel Shackles | Corrosive Environments | Longevity, easy inspection |
Powerful Machinery shackles for lifting and rigging deliver versatility and reliability across industries. Their certified products support safe lifting operations and efficient rigging applications, helping professionals manage loads with confidence.
Shackle Selection
Load Weight
Selecting the correct shackle for any lifting or rigging task starts with understanding the load weight. Each shackle comes with a Working Load Limit (WLL), which indicates the maximum weight it can safely handle.
Operators must always choose a shackle with a WLL that meets or exceeds the weight of the load. Overloading a shackle can lead to equipment failure and serious safety risks.
Before every lift, workers should inspect the shackle for clear markings that show its WLL and size. If the markings are missing or unreadable, the shackle should not be used.
It is also important to consider any potential shock loading or dynamic forces that may occur during the lift. In these cases, select a shackle with a higher WLL to provide an extra margin of safety.
Tip: Always calculate the total force on the shackle, especially when using multi-leg slings, to ensure the WLL is not exceeded.
Guideline | Description |
|---|---|
Select the correct type and WLL | Ensure the shackle is rated for the specific application and possible shock loading. |
Inspect shackles before use | Check for legible markings, correct size, and absence of damage or wear. |
Load Direction
The direction of the load plays a critical role in shackle selection. Shackles are designed to handle loads applied along the centerline of the bow. Side loading, where force is applied at an angle, can drastically reduce the WLL—sometimes by 50% or more. For this reason, side loading should be avoided whenever possible.
When connecting multiple sling legs, always place them in the bow of the shackle, not on the pin. This practice helps distribute the force evenly and prevents overloading the pin.
The angle between sling legs also affects the tension on the shackle. Workers should calculate the tension based on sling angles to select a properly rated shackle.
Rule | Description |
|---|---|
Never side-load a shackle | Side loading can reduce the WLL by up to 50% or more. |
Connect the slings properly | Place sling legs in the bow to avoid overloading the pin. |
Account for sling angles | Calculate tension based on angles to select the right shackle. |
Note: Use bow-type shackles for multi-leg slings and keep the angle between sling legs below 120° for safe rigging.
Compatibility
Compatibility ensures that the shackle fits seamlessly with other rigging components. The pin diameter must match the eye or fitting it connects to, and the bow should accommodate all sling legs without crowding. Using mismatched components can create unsafe conditions and lead to equipment damage.
Operators should verify that the shackle material is suitable for the environment. For example, stainless steel shackles work best in marine or corrosive settings. All shackles must comply with relevant international standards, such as ISO 8539:2009, to guarantee safety and performance in critical lifting applications.
Always consult manufacturer guidelines and industry standards to confirm compatibility before starting any rigging operation.
Standards Compliance
Industry standards play a crucial role in shackle selection. Every shackle must meet specific safety and quality requirements to ensure reliable performance during lifting and rigging operations. International organizations such as ISO, ASTM, and OSHA set guidelines for design, manufacturing, and testing.
These standards define the minimum working load limit, material specifications, and inspection procedures.
Professionals should always verify that each shackle carries clear markings indicating compliance with recognized standards. Markings often include the manufacturer’s name, working load limit, and certification number. These details help users confirm that the shackle meets the necessary criteria for safe use.
Standard | Description | Importance |
|---|---|---|
ISO 8539 | Specifies requirements for shackles | Ensures global consistency |
ASTM A952 | Covers shackle testing procedures | Guarantees product safety |
OSHA 1910 | Regulates workplace safety | Protects workers |
Note:
Using shackles that do not meet standards can result in equipment failure and safety hazards. Always select certified products for critical lifting tasks.
Consulting Experts
Selecting the right shackle for a specific application often requires expert advice. Industry professionals possess deep knowledge of load requirements, environmental conditions, and safety regulations.
Consulting with experienced engineers or rigging specialists helps users avoid common mistakes and ensures optimal equipment selection.
Experts can recommend the best shackle type, material, and pin design for each project. They also provide guidance on proper installation and maintenance practices. When facing complex lifting scenarios or unique environmental challenges, seeking expert input reduces risk and improves efficiency.
Contact certified rigging consultants for technical support.
Request recommendations based on project specifications.
Review safety guidelines with industry professionals.
Tip:
When in doubt, consult an expert before making a final decision on shackle selection.
Powerful Machinery Custom Solutions
Powerful Machinery offers custom-engineered shackle solutions for clients with specialized needs. The company collaborates directly with customers to design and manufacture shackles that meet unique project requirements. Customization options include different sizes, materials, pin types, and coatings.
Clients benefit from Powerful Machinery’s expertise in certified manufacturing and rigorous testing. The company ensures every custom shackle complies with international standards and passes strict quality inspections.
This approach guarantees safety, reliability, and long-term value for demanding lifting and rigging applications.
Customization Option | Benefit |
|---|---|
Size and Dimensions | Fits specific load requirements |
Material Selection | Matches environmental conditions |
Pin Design | Enhances security and usability |
Coating Options | Improves corrosion resistance |
Powerful Machinery’s commitment to innovation and customer satisfaction sets them apart in the industry. Their custom shackle solutions help clients achieve safe and efficient lifting operations, even in the most challenging environments.
Shackle Measurement
Accurate measurement of a shackle ensures safe lifting and rigging operations. Professionals rely on precise dimensions and ratings to match the right shackle to each task. Powerful Machinery engineers design shackles with strict tolerances, supporting reliable performance in demanding environments.
Bow and Pin Dimensions
The bow and pin form the core structure of every shackle. The bow is the curved body, while the pin secures the opening. Measuring these components helps users select the correct shackle for their rigging setup.
Bow Diameter: This measurement determines the strength and load distribution. A thicker bow handles heavier loads and resists deformation.
Internal Width: The space inside the bow must accommodate slings, chains, or ropes without crowding.
Pin Diameter: The pin must fit securely through the ears and match the eye or fitting it connects to. A larger pin increases the shackle’s strength and stability.
Pin Length: The length should allow full engagement with the ears, preventing accidental release.
Tip: Always measure both the bow and pin before installation. Proper fit reduces wear and improves safety.
Dimension | Description | Importance |
|---|---|---|
Bow Diameter | Thickness of the curved body | Affects strength |
Internal Width | Space inside the bow | Ensures compatibility |
Pin Diameter | Thickness of the securing pin | Impacts load capacity |
Pin Length | Length of the pin | Prevents disengagement |
Working Load Limit
The working load limit defines the maximum weight a shackle can safely support. Manufacturers calculate this rating as one-third of the breaking strength. For example, a shackle with a breaking strength of 15,000 pounds will have a working load limit of 5,000 pounds.
Operators must never exceed this limit during lifting or rigging.
The following table shows typical working load limits for shackles used in heavy-duty rigging:
Working Load Limit (tons) | Count |
|---|---|
0.20 | 4 |
0.30 | 6 |
1.00 | 39 |
12.00 | 40 |
2.00 | 60 |
5.00 | 27 |
10.00 | 6 |
120.00 | 5 |
300.00 | 4 |
500.00 | 1 |
800.00 | 1 |
Note: Always check the shackle’s markings for its working load limit before use. Never guess or assume capacity.
Sizing
Selecting the correct shackle size depends on the load, rigging configuration, and connection points. Users must consider both the physical dimensions and the rated capacity. Sizing charts from manufacturers help match the shackle to the job.
Choose a shackle with a bow and pin large enough for all slings or chains.
Verify that the working load limit meets or exceeds the weight of the load.
Avoid using oversized shackles, which may create instability.
Use sizing tables and manufacturer guidelines for reference.
Proper sizing ensures the shackle fits securely and operates safely. Powerful Machinery provides detailed specifications for each product, supporting accurate selection and compliance with industry standards.
Safety
Inspection
Routine inspection forms the foundation of shackle safety in any lifting or rigging operation. Workers must check each shackle before every use to ensure it meets safety standards and performs reliably. A thorough inspection helps prevent accidents and equipment failure.
Best practices for shackle inspection include:
Securely tighten the pin and use a method to prevent it from backing out.
Examine the pin, ears, and bow for deformation, cracks, or metal loss.
Remove shackles from service if there is excessive pitting, corrosion, or visible nicks.
Check for bent, twisted, or distorted load-bearing parts.
Inspect for signs of heat damage, such as discoloration.
Confirm that all manufacturer markings and working load limits are clear and legible.
Use only the correct replacement pin from the original manufacturer.
Never weld onto a shackle body or pin.
Ensure the shackle fits the load and does not require force to attach.
Remove any shackles from service if the size is too small for the rated load.
Regular inspection protects workers and equipment, supporting a culture of safety on every job site.
Maintenance
Proper maintenance extends the lifespan of every shackle and upholds safety standards. Workers should follow a consistent maintenance routine to keep shackles in optimal condition.
Recommended maintenance procedures:
Inspect shackles regularly for wear, damage, or corrosion.
Clean shackles to remove dirt, mud, and rust buildup.
Lubricate moving parts, especially the pin, to ensure smooth operation.
Replace any damaged or worn shackles with high-quality parts.
After servicing, check alignment and fit to maintain proper function.
A well-maintained shackle resists corrosion and damage, reducing the risk of failure during lifting operations. Maintenance also ensures compliance with safety standards and supports reliable performance in demanding environments.
Testing and Certification
Testing and certification guarantee that each shackle meets strict safety standards before entering service. Manufacturers like Powerful Machinery conduct rigorous tests to verify strength, durability, and compliance with international regulations.
Certification Body | Standard/Requirement | Purpose |
|---|---|---|
ISO | ISO 8539 | Global safety standards |
ASTM | ASTM A952 | Testing and performance |
OSHA | OSHA 1910 | Workplace safety regulations |
TUV Rheinland, EURO CERT | Product certification | Independent quality assurance |
Certified shackles display clear markings for traceability. Workers should always use shackles with valid certifications to ensure safety and meet legal requirements. Regular testing and certification help maintain trust in lifting equipment and protect both personnel and assets.
Side Loading
Side loading occurs when a force acts on a shackle at an angle rather than along its centerline. This situation can reduce the working load limit and compromise safety. Engineers design shackles to handle loads applied straight through the bow.
When a load pulls from the side, the shackle may bend or fail. Workers must avoid side loading in all lifting and rigging operations.
A shackle should always align with the direction of the load. If multiple sling legs connect to a single shackle, place them in the bow and keep the angle between them below 120 degrees.
Never attach loads to the pin, as this increases the risk of side loading. Side loading can reduce the working load limit by up to 50 percent. Operators must inspect the rigging setup before every lift to confirm proper alignment.
Tip:
Always use the correct type of shackle for multi-leg slings. Bow shackles handle angular loads better than dee shackles.
Loading Type | Risk Level | Recommended Practice |
|---|---|---|
Centerline | Low | Use for all lifting tasks |
Side Loading | High | Avoid whenever possible |
Proper alignment ensures the shackle performs safely and maintains its rated capacity.
Markings
Markings on a shackle provide essential information for safe use. Manufacturers stamp each shackle with details such as working load limit, size, material grade, and certification marks. These markings help users verify that the shackle meets industry standards and is suitable for the intended application.
Operators must check markings before every lift. If a shackle lacks clear markings or if the information is worn away, remove it from service. Markings support traceability and compliance with safety regulations. Workers should never use a shackle with missing or unreadable markings.
Common shackle markings include:
Manufacturer’s name or logo
Working load limit (WLL)
Size and material grade
Certification or standard number
Markings protect workers and equipment by ensuring only certified shackles enter service.
Powerful Machinery Safety Standards
Powerful Machinery sets high safety standards for every shackle produced. The company follows strict international guidelines, including ISO, ASTM, and OSHA requirements. Engineers test each shackle for strength, durability, and reliability. Every product receives certification after passing rigorous inspections.
Powerful Machinery uses advanced manufacturing techniques and certified materials. The company marks each shackle with clear information for easy identification. Customers trust Powerful Machinery for products that meet or exceed global safety standards.
Key safety practices at Powerful Machinery:
Rigorous testing and inspection for every shackle
Compliance with international safety certifications
Clear markings for traceability and verification
Ongoing innovation to improve product reliability
Powerful Machinery’s commitment to safety helps professionals perform lifting and rigging tasks with confidence.
Industry Standards
Design Factors
Manufacturers consider several critical design factors when producing a certified shackle. These factors ensure each shackle performs safely and reliably in demanding environments. Engineers focus on both strength and compliance with international standards.
Design Factor | Description |
|---|---|
Minimum Breaking Strength (MBS) | The strength at which a shackle will fail. |
Working Load Limit (WLL) | The maximum load a shackle can safely handle. |
Safety Factor | A ratio (e.g., 4:1, 5:1) ensures the shackle can withstand dynamic loads and other real-world variables. |
Compliance Standards | ASME B30.26 and EN 13889 outline safety requirements and testing protocols for shackles. |
Engineers set safety factors between 4:1 and 6:1, depending on the application. Proof testing verifies the integrity of each shackle, often at twice the working load limit. Markings on every shackle include the manufacturer’s name, rated load, and size.
These markings help users identify the correct equipment and confirm compliance with safety regulations.
Proper design and clear markings protect workers and equipment during lifting operations.
International Certifications
Global markets require shackles to meet strict certification standards. These certifications confirm that each shackle has passed rigorous testing and meets international safety requirements.
ISO certification ensures the shackle meets global quality and safety benchmarks.
CE certification demonstrates compliance with European safety directives.
Certifications help companies operate across borders and provide assurance to customers. International standards also support traceability and accountability in the supply chain.
Certified shackles give users confidence in their lifting and rigging operations.
Powerful Machinery Certifications
Powerful Machinery maintains a strong commitment to quality and safety. The company ensures every shackle meets or exceeds international standards. Engineers conduct proof testing and thorough inspections before releasing products to the market.
Powerful Machinery products carry certifications from leading organizations, including ISO, TUV Rheinland, EURO CERT, and OSHA. Each shackle displays clear markings for traceability. The company also follows ASME B30.26 and EN 13889 guidelines for design and testing.
ISO and CE certifications for global acceptance
TUV Rheinland and EURO CERT for independent quality assurance
OSHA compliance for workplace safety
Powerful Machinery’s dedication to certification and testing helps clients trust their shackles in critical lifting and rigging applications.
How to Use Shackles?
Usage Steps
Professionals follow a systematic approach when using a shackle in lifting and rigging operations. Each step ensures safety and reliability.
Inspect the shackle for defects such as rust, cracks, or bending. Replace any damaged component immediately.
Select the correct type and size of shackle based on the load and application.
Open the shackle by releasing the pin or bolt.
Insert the rigging mechanism, such as a sling or chain, through the shackle and align it properly.
Secure the shackle by reinserting the pin or bolt.
Test the load to confirm the connection remains secure and check for any bending or twisting.
Follow recommended rigging techniques and safety guidelines throughout the process.
Wear appropriate personal protective equipment, including gloves and safety glasses.
Store shackles in a safe, dry area after use to prevent deterioration.
Tip: Always ensure the load passes through the centerline of the shackle for maximum strength and stability.
Pin Installation
Proper pin installation is essential for maintaining the integrity of the shackle during lifting operations.
Ensure the pin is correctly screwed or bolted into the shackle eye.
Confirm that the pin fits snugly and does not protrude or loosen under load.
Use only manufacturer-approved pins to avoid compatibility issues.
For bolt-type shackles, secure the nut and cotter pin to prevent accidental release.
Never force the pin into place; alignment between the ears and pin must be precise.
A well-installed pin prevents accidental disengagement and supports safe lifting. Technicians should always check pin engagement before applying any load.
Overloading Prevention
Preventing shackle overloading protects both workers and equipment.
Inspect the shackle before each use for signs of wear, cracks, or corrosion.
Choose a shackle that complies with recognized industry standards such as ASME B30.26 and CE Marking.
Never exceed the Working Load Limit (WLL) indicated on the shackle.
Use the correct type of shackle for the specific application.
Replace any shackle showing signs of damage or deformation.
Ensure proper pin engagement to avoid accidents.
Consider environmental factors, such as temperature and moisture, that may affect shackle integrity.
Consult a rigging specialist if uncertain about shackle selection or load requirements.
Note: Regular inspection and adherence to safety standards help prevent overloading and extend the lifespan of every shackle.
Storage
Proper storage of shackles ensures their longevity and maintains safety standards in any lifting or rigging operation. Workers who store shackles correctly reduce the risk of corrosion, damage, and accidental loss.
Powerful Machinery recommends a systematic approach to shackle storage, supporting both efficiency and compliance with industry best practices.
Key Principles for Shackle Storage:
Clean Before Storage:
Workers should always clean shackles after use. Dirt, grease, and moisture can accelerate corrosion or hide signs of wear. Use a wire brush or cloth to remove debris. For stainless steel shackles, a simple rinse and dry process often suffices.Dry Environment:
Store shackles in a dry, well-ventilated area. Moisture promotes rust, especially on carbon and alloy steel shackles. Stainless steel shackles resist corrosion, but a dry environment still extends their service life.Organized Storage:
Use bins, racks, or pegboards to keep shackles sorted by size, type, and working load limit. Label each storage area for quick identification. This organization prevents mix-ups and saves time during rigging operations.Avoid Stacking Heavy Loads:
Do not stack heavy objects on top of shackles. Excessive weight can deform the bow or pin, reducing the shackle’s strength. Place shackles in single layers or hang them individually when possible.Protect from Chemicals:
Keep shackles away from corrosive chemicals or fumes. Even stainless steel can suffer damage from prolonged chemical exposure. Use sealed containers or cabinets if the storage area contains hazardous materials.Regular Inspection:
Inspect shackles periodically, even when not in use. Look for signs of rust, pitting, or mechanical damage. Remove any compromised shackles from service immediately.
Tip:
Assign a dedicated storage area for lifting and rigging hardware. This practice improves accountability and makes inspections easier.
Sample Shackle Storage Checklist
Task | Frequency | Responsible Party |
|---|---|---|
Clean before storage | After every use | Operator |
Inspect for damage | Monthly | Safety supervisor |
Organize by size/type | Ongoing | Warehouse staff |
Check for moisture/chemicals | Weekly | Maintenance team |
Proper storage not only extends the life of shackles but also supports a safer workplace. Powerful Machinery encourages all users to follow these guidelines. Well-maintained shackles deliver reliable performance and help prevent accidents during lifting and rigging operations.
Shackle Cost and Size
Pricing
Shackle pricing varies widely across the lifting and rigging industry. Entry-level models for light-duty applications may cost only a few dollars each. Heavy-duty or specialized shackles, such as those made from stainless steel or designed for high load capacities, can command much higher prices.
Buyers often see a direct relationship between the quality of materials and the final cost. For example, a stainless steel shackle designed for marine use will typically cost more than a standard carbon steel version. Bulk orders often result in lower per-unit costs, making them attractive for large projects or ongoing operations.
Note: Always compare prices based on material, certification, and intended use to ensure value and safety.
Factors Affecting Cost
Several key factors influence the cost of a shackle. Material selection stands out as the most significant driver. Stainless steel and alloy steel options cost more due to their enhanced strength and corrosion resistance. Size and load capacity also play a major role.
Larger shackles with higher working load limits require more raw material and stricter manufacturing controls, which increases the price. Design differences, such as bow versus D-type shackles or specialty models, can affect pricing as well. Brand reputation matters, too.
Established brands like Powerful Machinery may charge a premium because of their proven reliability and adherence to safety standards. Purchasing volume impacts cost, with bulk orders often qualifying for discounts.
Factor | Description |
|---|---|
Material | The type of material (steel, stainless steel, aluminum) significantly influences the price. |
Size and Load Capacity | Larger shackles with higher load capacities are more expensive due to increased material use. |
Design | Different designs (D-type, Bow shackles) can vary in price, especially specialty shackles. |
Brand Reputation | Established brands may charge more due to reliability and safety standards. |
Purchasing Volume | Buying in bulk can lead to discounts, affecting overall costs. |
Tip: Consider both immediate needs and long-term durability when evaluating shackle costs.
Sizing Options
Manufacturers offer shackles in a wide range of sizes to meet diverse application requirements. Sizes typically range from small models with a working load limit of less than half a ton to large industrial shackles rated for hundreds of tons. The correct size depends on the load, the type of rigging, and the environment.
For example, marine and construction projects often require larger, corrosion-resistant shackles. Each size comes with specific dimensions for the bow and pin, ensuring compatibility with other rigging components.
Powerful Machinery provides detailed sizing charts and technical support to help buyers select the right shackle for every job.
Always verify the working load limit and dimensions before purchasing a shackle to ensure safe and efficient operation.
Conclusion
Shackles remain essential in lifting and rigging across construction, marine, and industrial sectors. Powerful Machinery delivers certified products that meet strict safety standards. Regular inspection and proper selection help prevent accidents and extend equipment life.
Readers seeking reliable solutions can consult Powerful Machinery for expert guidance and custom-engineered products. Trust in a shackle from a proven leader ensures safety and performance on every job.
FAQ
What is the difference between a bow shackle and a dee shackle?
A bow shackle features a rounded body that handles multi-directional loads. A dee shackle has a straight profile designed for single-direction pulls. Bow shackles suit multi-leg slings, while dee shackles work best for straight-line lifting.
How do you identify a certified shackle?
Certified shackles display clear markings. These include the manufacturer’s name, working load limit, size, and certification number. Powerful Machinery shackles meet international standards and show all required information for traceability.
Can stainless steel shackles be used in marine environments?
Stainless steel shackles resist corrosion from saltwater and moisture. They perform reliably in marine settings. Powerful Machinery’s G2150 and G2130 shackles use 304 or 316 stainless steel for maximum durability in harsh conditions.
How often should shackles be inspected?
Workers should inspect shackles before each use. Monthly inspections help detect wear, cracks, or corrosion. Replace any damaged shackle immediately. Regular checks maintain safety and extend equipment life.
What is the working load limit (WLL) on a shackle?
The working load limit (WLL) indicates the maximum safe load for a shackle. Manufacturers calculate WLL as one-third of the breaking strength. Always use shackles within their marked WLL to prevent accidents.
Can Powerful Machinery customize shackles for special projects?
Powerful Machinery offers custom-engineered shackles. Clients can request specific sizes, materials, pin types, or coatings. The company ensures every custom product meets strict safety and certification standards.
What should you do if a shackle pin does not fit properly?
Do not force the pin into place. Check for alignment between the ears and pin. Use only manufacturer-approved replacement pins. If the pin does not fit, remove the shackle from service and consult an expert.
Are shackles suitable for overhead lifting?
Certified shackles, such as Powerful Machinery’s G2130, support overhead lifting when used within rated limits. Always verify the shackle’s certification and working load limit before performing any overhead lift.
