Endless Slings
4T Endless Webbing Sling/Endless Polyester lifting slings
An endless polyester flat webbing sling with no end fittings or reinforced eyes, formed by stitching the ends to create a continuous loop. It has a 4000kg working load limit, a 7:1 safety factor, and is available in single ply construction with lengths from 1m to 12m. The sling is ideal for vertical, basket, and choker hitches, with high resistance to UV, water, stains, and chemicals. Standard colour is grey, but other colours are available by request.
- Working Load Limit
- 4000kg ◆
- Material
- 100% High tenacity industrial polyester yarn ◆
- Packing
- PE shrink wrapped, carton and pallet
- Catalogue Family
- Endless 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 4T Endless Webbing Sling Gives You
- No end fittings or lifting eyes mean no stress concentration points and a smooth load transfer
- Continuous loop design allows rotation of hook and load contact points for even wear
- 7:1 safety factor ensures high reliability under dynamic and variable loads
- High tenacity polyester resists abrasion, UV, water, and common industrial chemicals
- Low elongation maintains load stability during lifting and positioning
- Easy to handle and store due to flexible, lightweight construction
- Suitable for marine, outdoor, and industrial environments where corrosion resistance is critical
Application Scenarios
Where 4T Endless Webbing Sling Is Used
- Lifting and moving large steel plates or fabricated structural components in shipyards and fabrication shops
- Handling heavy machinery and industrial equipment in ports and logistics hubs
- Positioning precast concrete panels and bridge segments on construction sites
- Moving large drums, reels, or cylindrical loads in oil and gas or mining facilities
- Marine applications where synthetic slings are preferred over steel to avoid galvanic corrosion
- Temporary rigging setups requiring quick deployment and minimal hardware
Who It Is For
Buyers This Product Is Built For
- Industrial rigging teams specifying soft slings for sensitive or high-value loads
- Marine and offshore contractors needing corrosion-resistant lifting gear
- Construction firms handling large, flat, or irregularly shaped components
- Logistics and warehousing operators managing heavy palletized or bulk cargo
- Manufacturers using slings in automated or semi-automated material handling lines
- Rigging distributors expanding their soft sling range with a standardised endless option
Problems It Solves
Problems This Product Removes
- Avoiding damage to delicate or polished surfaces that metal fittings can scratch or mar
- Eliminating the need to purchase separate end fittings or lifting eyes for each sling
- Reducing the risk of fatigue failure at welded or bolted end connections
- Solving the issue of uneven load distribution when using slings with fixed end points
- Cutting down on inventory by replacing multiple sling types with one endless loop design
- Avoiding the weight and bulk of metal fittings in applications where soft slings are preferred
Technical Features
Technical Features
- Continuous loop construction with no end fittings or eyes
- Single ply flat webbing made from 100% high tenacity industrial polyester yarn
- 7:1 safety factor with minimum breaking load four times the working load limit
- Working load limit stamped on the sling for traceability and field use
- Stitched seam at the end to form the endless loop with reinforced stitching
- Available in lengths from 1m to 12m with custom lengths possible
- Low elongation under load for precise positioning and control
Specifications
4T Endless Webbing Sling Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Working Load Limit | 4000 kg |
|---|---|
| Safety Factor | 7:1 standard (available 4:1, 5:1, 6:1, 7:1) |
| Material | 100% High tenacity industrial polyester yarn |
| Construction | Single ply endless |
| Length Range | 1m to 12m |
| Colour | Grey (other colours available by request) |
| End Construction | Stitched seam to form endless loop |
| Surface Finish | Smooth flat webbing |
Materials
Materials And Finishes
- 100% high tenacity industrial polyester yarn for high strength and durability
- Reinforced stitching at the seam to maintain integrity under full load
- UV-resistant and water-repellent coating to extend service life in outdoor environments
- Chemical-resistant fibres to withstand exposure to oils, solvents, and cleaning agents
Manufacturing Process
How This Product Is Made
1Weaving of high tenacity polyester yarn into flat webbing
2Cutting the webbing to specified length
3Stitching the ends together to form a continuous loop
4Inspection of the stitched seam for strength and alignment
5Proof load testing on production batches
6Marking of working load limit and safety factor on the sling
7Packaging in PE shrink wrap, then cartons and pallets for export
Quality Control
Quality Control On Every Batch
- Proof load test on each production batch before release
- Dimensional inspection of length and width against the specification
- Breaking strength validation to confirm the 7:1 safety factor
- Visual inspection of the stitched seam for defects or misalignment
- Material Test Certificate to EN 10204 3.1 issued with the order on request
- Third-party inspection accepted at the Qingdao warehouse before shipment
Customisation
Customisation Options
- Custom length from 1m to 12m, with custom lengths possible on request
- Custom colour available upon request (e.g. yellow, violet, red, green, blue, orange)
- Tapered or reinforced ends available on request for higher load concentration
- Private label and OEM marking on the sling or packaging
- Custom packaging configuration including carton and pallet layout
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 |
|---|---|
| Wire rope sling | Lighter and easier to handle, with no sharp edges or risk of surface damage, but lower resistance to abrasion and heat |
| Chain sling | No metal-to-metal contact, better for sensitive surfaces, but less resistance to cutting and high-temperature environments |
| Endless sling with end fittings | No end fittings reduce weight and eliminate stress risers, but require different attachment methods |
| Standard webbing sling with eyes | Endless design allows rotation and even load distribution, but not suitable for fixed hook attachment points |
Use Guide
How To Use And Inspect 4T Endless Webbing Sling
- Verify the stamped working load limit matches the calculated load before lifting
- Ensure the sling is not twisted during use and the load is evenly distributed
- Avoid contact with sharp edges, hot surfaces, or chemicals that degrade polyester
- Inspect the stitched seam and webbing for wear, cuts, or fraying before each use
- Do not exceed the 7:1 safety factor; use the correct hitch type (vertical, basket, choker) for the load configuration
- Retire the sling if the stitching fails, the webbing shows signs of degradation, or the marking is illegible
Related Products
Often Ordered With This Item
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Answers
4T Endless Webbing Sling FAQ
What is the working load limit of this sling?
The working load limit is 4000kg, with a 7:1 safety factor. Other safety factors (4:1, 5:1, 6:1) are available on request.
Can I get this sling in a different colour?
Yes. Standard colour is grey, but other colours such as yellow, violet, red, green, blue, and orange are available by request.
Is the sling available in custom lengths?
Yes. Standard lengths range from 1m to 12m. Custom lengths can be built to your specification.
Can the ends be tapered or reinforced?
Yes. Tapered or reinforced ends are available on request to suit specific load or attachment needs.
What certificates come with the order?
A Material Test Certificate to EN 10204 3.1 is supplied on request. Every batch is proof load tested and dimensionally inspected.
How is the sling packed for export?
Each sling is PE shrink wrapped, then packed in cartons and pallets. We can configure the carton count and pallet pattern to suit your warehouse or retail pack.
Can I get private label or OEM marking?
Yes. Custom tonnage stamping, private label marking, and OEM packaging are standard options.
Need A Quote On 4T Endless Webbing Sling
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