Lift Sling Net Belt Factory manufacture 500Ton Round Sling,WLL 500T Polyester Round Slings,500000KG Soft Lifting Slings,Heavy Duty Crane Lifting Slings.

WLL 500T Polyester Round Slings

500000KG Soft Lifting Slings – Heavy Duty Crane Lifting Slings

Lift Sling Net Belt Factory. – China Manufacturer, Supplier, Factory

The 500T endless round sling from JiangSu Lift is engineered for the most extreme lifting applications, delivering a certified Working Load Limit of 500,000 kg (500 tonnes) in a lightweight, flexible soft sling design. Manufactured from 100% high-strength polyester yarn with a standard 7:1 safety factor (6:1 and 8:1 available on request), it complies with ISO 4878, EN 1492-2:2000+A1:2008 and AS 4497:2018, and meets the requirements of the Machinery Directive 2006/42/EC. Each sling is supplied with a CE Declaration of Conformity and load test certificate.

The round sling consists of an internal load-bearing core of parallel high-strength polyester yarns, fully protected by a PU-impregnated woven sleeve. The sleeve does not carry load — it shields the core from abrasion, UV degradation, dirt and debris, and serves as the first warning layer: in the event of severe overloading or prolonged service, the outer cover breaks or warns before a sudden failure, greatly reducing accident risk.

Thanks to its soft and flexible endless (grommet) construction, the 500T sling hugs uneven and odd-shaped loads naturally, protecting the load surface from scratches and damage while distributing force evenly across the contact area. The safe working load is clearly and continuously printed on the sleeve, and capacity stripes are marked according to international color coding — each stripe equals 1 tonne capacity — so the rated capacity remains easy to identify even after years of abrasion.

1. Key Features

• 500,000 kg (500 t) Working Load Limit Extreme capacity with a certified 7:1 safety factor; 6:1 / 8:1 optional.

• Endless Circular Construction Continuous load-bearing yarn core with no load-bearing seams or stitching.

• PU-Impregnated Protective Sleeve Prevents dirt ingress, protects core from abrasion, wear and UV degradation.

• Low Elongation Only approx. 3% at rated capacity, returns to original length, minimizing stretch adjustment and headroom issues.

• Capacity Color Coding Color-coded to EN 1492-2:2000+A1:2008 & AS 4497:2018; each capacity stripe equals 1 tonne.

• SWL Continuously Printed on Sleeve Always readable, even when worn.

• Wide Working Temperature Range -40 °C to +90 °C (-40 °F to +194 °F).

• Excellent Environmental Resistance All-polyester construction virtually eliminates moisture absorption, rot and mildew; good resistance to common industrial acids (except concentrated sulfuric acid), alcohol, hydrocarbons, crude oil, lubricating oils, seawater and weak alkalis.

• Load Stability & Long Service Life Spreading the sling legs balances the load; wear points can be shifted to extend sling life.

2. Technical Specifications  Round Sling-500T-Lift

3. Typical Applications

• Power plant & transformer installation

• Offshore platform & marine heavy lifting

• Bridge girder & infrastructure construction

• Heavy machinery & equipment installation

• Wind turbine component lifting

• Shipbuilding & dry dock operations

• Precast concrete elements

• Mining & quarrying equipment

4. Why Choose JiangSu Lift

• China Manufacturer Since Day One Direct factory pricing with wholesale and OEM/ODM service.

• CE Certified Quality Products made in China, high in quality, low in price.

• Full Traceability Every sling packed with CE Declaration of Conformity or Test Certificate.

• Free Samples Available Please feel free to contact us for a free sample before bulk order.

• Custom Engineering Custom lengths, capacities (up to 1000T), colors and logo printing on request.

5. Frequently Asked Questions

Q: What does “WLL 500T” mean?

A: WLL (Working Load Limit) is the maximum safe load for a straight vertical lift — here 500 tonnes (500,000 kg). The safe working load varies with sling configuration (choked, basket) and lift angle; refer to the load tables on this page.

Q: What safety factor does the 500T round sling have?

A: The standard safety factor is 7:1, meaning a minimum breaking load of 3,500 t. Safety factors of 6:1 and 8:1 can be supplied on request.

Q: Is the length measured as circumference or effective length?

A: When ordering, please clarify whether the length specified is circumference or effective working length to ensure correct manufacturing.

Q: What certificates are provided?

A: Each sling is supplied with a CE Declaration of Conformity or a load test certificate, packed in plastic.

6. Contact & Ordering

• Welcome to buy the newest and competitive price JiangSu Lift WLL 500T Polyester Round Slings from our factory.

• Wholesale service and OEM service at a discount — free samples available on request.