As a chain sling manufacturer, Powerful Machinery builds complete chain sling assemblies for overhead lifting, rigging, and material handling. Our range includes Grade 80 and Grade 100 single-leg, two-leg, three-leg, and four-leg lifting chain slings, including fixed and adjustable chain slings. Select the chain grade, working load limit (WLL), reach, master link, hooks, connectors, finish, tag, and documentation required for your market and application.
Send us your maximum load, sling configuration, reach, sling angle, end fittings, quantity, destination, and required standards. We support custom chain slings, OEM programs, bulk purchasing, drawing-based production, identification marking, and testing or inspection to agreed order requirements.
Choose the number of legs from the load geometry and approved lifting points—not simply from the load weight. The rated capacity of a finished alloy steel chain sling depends on its chain grade and size, hitch, sling angle, and lowest-rated component. A qualified person should confirm the final configuration and WLL before use.
Standard catalog configurations do not cover every crane hook, lifting lug, headroom limit, or operating environment. Powerful Machinery can build custom chain slings to a drawing, sample, specification, or repeat-order requirement. Buyers can define chain grade and size, leg count, reach, adjustment range, master link, lower fittings, finish, identification, packaging, and documentation.
For a faster, more accurate quotation, include:
– Maximum gross load, load description, and center of gravity
– Number and position of rated lifting points
– Hitch and worst-case sling angle, with the angle convention clearly defined
– Required WLL and preferred Grade 80 or Grade 100 system
– Finished reach measured bearing point to bearing point
– Crane-hook, lug, shackle, or trunnion connection dimensions
– Required master link, sling hook, self-locking hook, grab hook, foundry hook, or shortening device
– Temperature, corrosion, abrasion, chemicals, and duty cycle
– Destination market, applicable standard, tag details, testing, and certificates
– Order quantity, packaging, delivery destination, drawing, and target date
Start with the load. Include the load itself and every below-the-hook item carried by the sling.
Choose the hitch and leg configuration. Confirm the number and location of rated pick points before selecting one, two, three, or four legs.
Define the worst-case angle. State whether the angle is measured from the horizontal, from the vertical, or between the legs. See the sling angle guide.
Rate the complete assembly. Leg tension rises as a multi-leg sling becomes flatter. Use the applicable manufacturer table and review how to calculate chain sling capacity.
Select grade and size. Compare Grade 80 vs Grade 100 chain after the required WLL, geometry, environment, and component system are known.
Confirm reach and fittings. Measure finished reach bearing to bearing and check every opening, bearing surface, latch, and clearance.
State the service conditions. Temperature, chemicals, corrosion, sharp edges, abrasion, shock, and high-cycle duty can change the suitable design or rating.
Request the required evidence. Put tagging, testing, traceability, certificates, inspection instructions, and approval drawings in the purchase specification.
Selection note: Never choose a lifting chain sling from chain diameter alone. The quoted WLL must apply to the finished assembly at the stated hitch and angle. Final sling selection and lift planning belong with qualified personnel following the applicable standard and manufacturer instructions.
Tell us where the sling will be used and which standard or project specification applies. Depending on the agreed order, chain sling documentation can include dimensional and visual inspection records, proof-load test certificates, a certificate of conformity, serial or batch traceability, WLL information, and identification tags. Requirements for ASME, OSHA, EN, or another market should be stated in the RFQ so the proposed product, marking, and documents can be confirmed before production.
Alloy chain slings are valued where abrasion resistance, rugged handling, inspectability, and configurable hardware matter. Typical applications include machinery installation, steel fabrication, construction, mining, foundry work, shipbuilding, marine and offshore projects, energy, rail, and heavy equipment handling. Explore our industry solutions or send the load drawing for a configuration review.
MOQ depends on the chain grade, diameter, fittings, finish, testing, packaging, and whether the assembly uses standard or custom components. Send the specification and required quantity for a practical production and price recommendation.
Lead time depends on material availability, quantity, fabrication complexity, approval drawings, testing, documentation, and shipping method. We confirm the production schedule after reviewing the complete RFQ rather than offering a date that may not fit the configuration.
Yes. We accept drawings, samples, marked-up photos, and technical specifications for custom lifting chain slings. Include the load and connection geometry as well as the assembly dimensions; matching a sample’s appearance alone is not enough to confirm a safe WLL.
Both grades are used in overhead lifting systems when the selected product and components are approved for the application. Grade 100 can provide a higher WLL at the same nominal diameter than Grade 80, which may reduce assembly weight or increase capacity. Availability, fittings, temperature limits, site standards, and existing inspection programs should also guide the decision.
Yes, when these deliverables are defined in the order. State whether you require proof-load testing, an inspection record, certificate of conformity, serial number, batch traceability, WLL table, tag content, or third-party inspection. We will confirm what applies to the proposed assembly before production.
Provide the maximum gross load, hitch, number of legs, worst-case angle, required WLL, reach, top and bottom connection dimensions, environment, applicable standard, documentation, quantity, destination, and target date. A drawing is strongly recommended when pick points, clearances, or the center of gravity are unusual.
Tell us what you are lifting, how the sling will connect, and what documentation must arrive with the order. Powerful Machinery will review the specification, identify missing details, and quote a standard or custom Grade 80 or Grade 100 chain sling assembly for your purchasing requirement.
After downloading the product catalogue, our dedicated technical experts will provide you with one-on-one service.
