4 Tonne Round Sling

Plumalti | 4,000 kg WLL | Grey | Endless Loop | BS EN 1492-2 | CE Marked | UKCA Compliant

4 Tonne Round Sling is an endless-loop lifting sling constructed from continuous strands of high-tenacity polyester yarn encased in a durable, colour-coded tubular woven polyester sleeve. Manufactured to BS EN 1492-2:2000, the grey-coded sling provides a Working Load Limit of 4,000 kg in a straight lift - rising to 8,000 kg in a basket hitch configuration. The endless tubular construction allows the sling to flex in any direction, conforming naturally to cylindrical, curved, and irregularly shaped loads. The protective outer sleeve shields the load-bearing polyester core from abrasion, UV degradation, and surface damage, while the soft material protects the load from scratching and marking. Grey colour-coded for instant WLL identification in accordance with the international colour standard. Each sling is individually serialised with a blue identification label. Available in effective working lengths (EWL) from 1m to 6m.

Technical Specifications

Key Features

• Manufactured to BS EN 1492-2:2000 - produced from 100% high-tenacity polyester, tested and certified to the European harmonised standard for textile round slings
• Endless loop construction - continuous polyester yarn core inside a protective tubular sleeve provides exceptional strength with multi-directional flexibility
• Grey colour-coded for 4 Tonne WLL - instant visual identification of Working Load Limit in accordance with the international colour standard
• Protective tubular sleeve - the outer woven polyester cover protects the load-bearing core from abrasion, cuts, UV degradation, and contamination while remaining soft against the load
• 8,000 kg capacity in basket hitch - in a basket configuration the effective WLL doubles, providing significant versatility for heavier loads
• 7:1 safety factor - minimum core breaking strength of 28,000 kg, with the outer sleeve rated to withstand at least twice the WLL before rupture
• Conforms to any load shape - the tubular construction flexes in any direction, naturally wrapping around cylindrical, curved, and irregularly shaped loads for a secure grip
• Superior choke performance - forms a tighter, more even choke hitch than flat webbing slings, particularly effective on pipes, drums, and cylindrical loads
• Lightweight and easy to handle - significantly lighter than chain or wire rope slings of equivalent capacity, reducing manual handling strain during rigging
• Blue identification label - individually serialised with WLL, EWL, mode factors, and manufacturer details for full LOLER traceability

Understanding Round Sling Length - EWL vs Circumference

1. Effective Working Length (EWL) - all round slings on this page are sold by their EWL, which is the usable length of the sling when laid flat. In a straight lift, the EWL is the distance from hook to load. A 2m EWL sling gives you 2m of usable reach.
2. Circumference - because a round sling is an endless loop, the total circumference is always double the EWL. A 2m EWL sling has a 4m circumference. The sling's identification label will show the circumference, so it will display double the EWL you selected.
3. Choke hitch adjustment - in a choke configuration, the effective length is reduced further because part of the sling wraps around the load. Allow approximately 2-3 times the load diameter in additional length for a proper choke.
4. Basket hitch - for a basket hitch, the sling passes under the load with both bights on the hook. The effective length from hook to load underside is approximately half the EWL, depending on the load width.
5. Selecting the right EWL - measure the distance from hook to load contact point for your rigging configuration. For a straight lift, the EWL should match this distance. For choke and basket hitches, allow additional length for the wrap around the load.
6. Standard EWL sizes available - Plumalti round slings in 4 tonne capacity are available in EWL from 1m to 6m, covering circumferences from 2m to 12m.

Certification and Compliance

This product is CE marked in accordance with EU Machinery Directive 2006/42/EEC and is UKCA compliant for the Great Britain market. Manufactured to the performance requirements of BS EN 1492-2:2000 - the European harmonised standard for textile round slings used in general purpose lifting operations. Each sling is produced with a 7:1 safety factor, individually serialised, and supplied with full traceability documentation including an EC Declaration of Conformity. All lifting equipment used on UK construction sites must comply with the Lifting Operations and Lifting Equipment Regulations 1998 (LOLER) and the Provision and Use of Work Equipment Regulations 1998 (PUWER).

Safety Information

• Never exceed the rated Working Load Limit (WLL) for the selected hitch configuration. A choke hitch reduces the WLL to 3,200 kg.
• Inspect the sling before every use. Check the outer sleeve for cuts, tears, abrasion, and holes. If the inner core yarns are exposed, remove from service immediately.
• Do not use round slings on sharp-edged loads without protective wear sleeves - sharp edges can cut through the outer sleeve and damage the core.
• Do not knot or twist the sling to shorten it. Knotting damages the core yarns and dramatically reduces the WLL.
• Position the choke point at the natural 120° angle. Forcing a tighter choke generates friction that can damage the sleeve and reduce capacity.
• Do not expose polyester round slings to strong alkalis, concentrated acids, or temperatures above 100°C.
• Never stand under a suspended load. Maintain exclusion zones during all lifting operations.
• A risk assessment must be in place before any lifting operation. Operation only by competent persons trained in sling use and rigging techniques.

Inspection and Maintenance

Round slings must be visually inspected before each use and undergo a thorough examination at least every six months by a competent person under LOLER 1998. Inspection must cover the full circumference of the outer sleeve on all sides, paying particular attention to bearing points where the sling contacts the load. Key indicators of damage include: cuts, tears, or holes in the outer sleeve; exposed core yarns; lumps, hard spots, or unevenness in the core; abrasion wear or thinning of the sleeve; discolouration from chemical or heat exposure; and damage to or illegibility of the identification label. Any round sling showing signs of damage must be removed from service immediately. Round slings cannot be field-repaired - damaged slings must be cut and disposed of to prevent re-use.

Frequently Asked Questions