Round Slings
Endless Roundslings 4T Round Lifting Sling
An endless round sling made from a continuous loop of high tenacity polyester yarn with a double-ply outer sleeve for abrasion resistance. Designed for vertical, basket, and choker lifts with a 4000 kg working load limit and the published safety factor. Available in lengths from 1m to 12m, colour grey, and compliant with EN1492-2+A1:2008. The seamless construction provides flexibility and load adaptability without sharp edges or stress points.
- Material
- 100% High tenacity industial polyester yarn ◆ Inner core:made of 60000D twisted polyester yarn ◆ Double ply ou
- Catalogue Family
- Round Slings
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What Endless Roundslings 4T Round Lifting Sling Gives You
- Seamless continuous loop design eliminates weak points and stress concentration at joints
- Double-ply outer sleeve resists abrasion from rough surfaces and repeated handling
- High tenacity 60000D polyester core maintains strength under dynamic and static loads
- Low elongation under load ensures stable lift height and controlled positioning
- Flexible shape adaptation allows secure lifting of irregular or sensitive loads
- the published safety factor provides a margin of safety for variable duty cycles and environmental exposure
- Complies with EN1492-2+A1:2008 for synthetic round slings in lifting applications
Application Scenarios
Where Endless Roundslings 4T Round Lifting Sling Is Used
- Lifting steel coils, pipes, and cylindrical components in steel fabrication and rolling mills
- Handling concrete rings, manhole covers, and precast structures in construction
- Moving large drums, barrels, and industrial containers in ports and logistics hubs
- Supporting heavy machinery and equipment during installation in industrial plants
- Rigging sensitive or high-value loads where surface protection is critical
- Use in environments with frequent handling where abrasion resistance is required
Who It Is For
Buyers This Product Is Built For
- Industrial plant maintenance teams specifying lifting gear for routine equipment handling
- Construction site supervisors managing precast concrete and structural components
- Logistics and warehouse managers handling cylindrical or irregular loads
- Marine and offshore contractors lifting deck-mounted equipment and modules
- Manufacturers of lifting systems integrating round slings into their rigging kits
- Rigging distributors stocking versatile synthetic slings for multiple applications
Problems It Solves
Problems This Product Removes
- Replacing stitched or spliced slings that degrade at the joint under repeated stress
- Reducing surface damage to sensitive or coated loads due to sharp edges or pressure points
- Avoiding the need to carry multiple sling types for vertical, basket, and choker configurations
- Minimizing elongation during lift to maintain precise positioning in assembly work
- Eliminating the risk of core exposure from abrasion in high-wear environments
- Simplifying inventory by using one sling type across multiple lift modes
Technical Features
Technical Features
- Continuous loop construction with no welded or stitched joints
- Inner core made of 60000D twisted high tenacity polyester yarn
- Double-ply outer sleeve for enhanced wear and cut resistance
- Working load limit of 4000 kg with the published safety factor
- Available in lengths from 1m to 12m
- Complies with EN1492-2+A1:2008 for synthetic round slings
- Colour: Grey, with WLL and safety factor marked on the sling
- Low elongation under full load for stable lifting performance
Specifications
Endless Roundslings 4T Round Lifting Sling Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity | 4000 kg safe working load |
|---|---|
| Safety Factor | 8:1 minimum |
| Material | 100% high tenacity industrial polyester yarn |
| Core | 60000D twisted polyester yarn |
| Outer Sleeve | Double ply, extremely wear-resistant |
| Length Range | 1m to 12m |
| Diameter | 67mm |
| Colour | Grey |
| Standards | EN1492-2+A1:2008 |
| Elongation | Low under load |
Materials
Materials And Finishes
- 100% high tenacity industrial polyester yarn for core and outer sleeve
- Double-ply construction to resist abrasion and surface wear
- High tenacity 60000D polyester yarn provides high strength and low stretch
- Grey colour for visibility and standard identification
- No metal components or stitching; all construction is woven and heat-sealed
Manufacturing Process
How This Product Is Made
1Spinning of high tenacity polyester yarn into 60000D core strands
2Twisting of core yarns into a continuous load-bearing strand
3Weaving of double-ply outer sleeve around the core in a continuous loop
4Heat-setting and tensioning to stabilise the loop and reduce elongation
5Marking of WLL, safety factor, and product code on the sling
6Final inspection for surface defects, dimensional accuracy, and loop integrity
Quality Control
Quality Control On Every Batch
- Proof load test on production batches at the rated load
- Dimensional tolerance check against published size table
- Visual inspection for surface defects, seam integrity, and marking clarity
- Breaking strength validation to confirm the published safety factor
- WLL and safety factor marking verified on each unit
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom length from 1m to 12m built to order
- Custom tonnage capacity available upon request
- Custom colour options available on request
- Custom marking including WLL, serial number, and customer logo
- Custom packaging configuration for pallet or retail use
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| Stitched or spliced slings | The endless loop has no joint, so it avoids stress concentration and premature failure at the splice point |
| Wire rope slings | Lighter weight and better surface protection for sensitive loads, but less resistance to high-temperature or sharp edge exposure |
| Nylon round slings | Polyester offers better UV resistance and lower elongation, but nylon has higher impact absorption |
| Chain slings | Polyester is quieter, lighter, and protects load surfaces, but chain has higher heat and abrasion resistance |
Use Guide
How To Use And Inspect Endless Roundslings 4T Round Lifting Sling
- Never exceed the stamped working load limit of 4000 kg
- Inspect the sling before each use for cuts, abrasions, or core exposure
- Avoid sharp edges, hot surfaces, and chemical exposure that degrade polyester
- Use only in vertical, basket, or choker configurations as per EN1492-2+A1:2008
- Keep the sling aligned with the load and avoid side loading or twisting
- Retire the sling if the outer sleeve is worn through, the core is exposed, or the marking is illegible
Related Products
Often Ordered With This Item
Round Webbing Sling 1T Polyester Round Sling/Soft Flexible Lifting Sling
Endless Round Webbing Sling 2T Soft Flexible Lifting Sling
Round Sling Rigging 3T
Synthetic Round Sling 5T
Polyester Round Sling 6T
8T Synthetic Round slings
Polyester Round Slings 10T
EN1492 2 Round Lifting Sling, Flexible Round Slings
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Answers
Endless Roundslings 4T Round Lifting Sling FAQ
What safety factor does this sling carry?
A standard the published safety factor, so the minimum breaking load is eight times the stated safe working load.
Can I use this sling in a choker or basket lift?
Yes. It is rated for straight lift 100%, basket lift 200%, and choker lift 80% as per EN1492-2+A1:2008.
Is the sling marked with its working load limit?
Yes. The WLL of 4000 kg and safety factor are stamped on the sling for traceability.
Can I get a different length or tonnage?
Yes. Custom lengths from 1m to 12m and custom tonnage are available. Contact sales for details.
What standards does this sling comply with?
It complies with EN1492-2+A1:2008 for synthetic round slings used in lifting applications.
How is the sling inspected before shipment?
Each batch undergoes proof load testing, dimensional checks, and visual inspection. Third-party inspection is accepted at the warehouse before shipment.
What happens if the outer sleeve is damaged?
If the outer sleeve is worn through and the core is exposed, the sling must be retired immediately to prevent sudden failure.
Need A Quote On Endless Roundslings 4T Round Lifting Sling
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