The Plumalti 1 Tonne Duplex Webbing Sling is a lightweight, heavy-duty lifting sling manufactured from 100% high-tenacity polyester to BS EN 1492-1:2000. At just 30mm wide it is the most compact sling in the Plumalti range, with dual-layer (duplex) construction for superior strength and abrasion resistance and a soft polyester surface that protects finished and delicate loads. Purple colour-coded for instant WLL identification and available in lengths from 1m to 10m.
Key Features
- Manufactured to BS EN 1492-1:2000 — produced from 100% high-tenacity polyester, tested and certified to the European harmonised standard for flat woven webbing slings
- Duplex (two-layer) construction — two layers of woven polyester stitched together provide superior strength, durability, and abrasion resistance compared to single-ply (simplex) slings
- Purple colour-coded for 1 Tonne WLL — instant visual identification of Working Load Limit in accordance with the international colour standard, reducing the risk of selecting the wrong sling
- Soft, non-marking material — polyester webbing won't scratch, dent, or damage loads during lifting, making it ideal for painted surfaces, finished goods, and delicate materials
- 7:1 safety factor — minimum breaking strength is seven times the stated WLL, providing a significant safety margin for general lifting operations
- Blue traceability label — each sling is individually serialised with WLL, length, mode factors, and manufacturer details for full LOLER inspection traceability
- Low elongation (max 3%) — polyester stretches less than nylon, providing more predictable load control and reducing the risk of sudden load movement
- Wide temperature range — operates from -40°C to +100°C without loss of performance, suitable for cold stores, outdoor construction, and industrial environments
- Lightweight and flexible — significantly lighter than chain or wire rope slings, reducing manual handling strain and making them easier to rig and store
- Multiple hitch configurations — can be used in straight, choke, or basket configurations with adjusted WLL for each mode
Technical Specifications
| Specification |
Value |
| Working Load Limit (WLL) |
1,000 kg (1 Tonne) |
| Strap Width |
30mm |
| Colour Code |
Purple |
| Construction |
Duplex (two-layer) |
| Material |
100% high-tenacity polyester |
| Safety Factor |
7:1 |
| Maximum Elongation |
3% |
| Temperature Range |
-40°C to +100°C |
| Standard |
BS EN 1492-1:2000 |
| Directive |
Machinery Directive 2006/42/EEC |
| Available Lengths |
1m, 2m, 3m, 4m, 5m, 6m, 8m, 10m |
Mode Factors:
Straight lift = 1,000 kg | Choke hitch = 800 kg | Basket hitch = 2,000 kg. Always check the blue traceability label before use to confirm the correct mode factor for your lift configuration.
CE Marked, UKCA Compliant & BS EN 1492-1 Certified
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 1492-1:2000 with a 7:1 safety factor — the minimum breaking strength is seven times the stated Working Load Limit. Each sling is individually serialised and supplied with full traceability documentation. Following Brexit, the UK government has confirmed indefinite recognition of CE marking for lifting equipment in Great Britain, meaning businesses can use either UKCA or CE marked accessories provided the equipment is accompanied by a Declaration of Conformity (DoC).
More About This Product
The Plumalti 1 Tonne Duplex Webbing Sling is a lightweight, heavy-duty lifting sling manufactured from 100% high-tenacity polyester to BS EN 1492-1:2000. At just 30mm wide, the 1 tonne sling is the most compact in the Plumalti range, making it ideal for lighter lifting duties and applications where space around the load is limited. The dual-layer (duplex) construction provides superior strength and abrasion resistance compared to single-ply slings, while the soft polyester material protects finished surfaces, painted goods, and delicate loads from scratching or damage during handling. Purple colour-coded for instant WLL identification in accordance with the international colour standard. Each sling is fitted with a blue traceability label displaying the serial number, WLL, length, and mode factors for straight lift, choke, and basket configurations. Available in lengths from 1m to 10m.
Suitable Applications
The 1 Tonne Duplex Webbing Sling is designed for lighter lifting duties where a soft, non-marking sling is preferred over chain or wire rope. It is commonly used on construction sites for lifting small steel sections, timber bundles, pipe runs, and building materials. In manufacturing and engineering, it handles components, sub-assemblies, and finished products where surface protection is important. The compact 30mm width makes it particularly useful in confined spaces and for loads with narrow lifting points. Warehouse and logistics operations use 1 tonne slings for loading and unloading goods, moving palletised stock, and handling fragile or painted items. The sling is also widely used in events, entertainment, and stage rigging for suspending lightweight equipment and fixtures.
Sling type is chosen by what the load will do to it: chain tolerates heat and sharp edges, webbing is lighter and kinder to finished surfaces. Rated capacity assumes the angle on the tag — see also shackles and chain and fittings for the connections.
How to Use a Duplex Webbing Sling
- Inspect the sling before each use. Check for cuts, fraying, abrasion damage, chemical contamination, heat damage, or illegible labelling. Remove from service immediately if any damage is found.
- Confirm the sling is rated for the intended lift. Check the blue traceability label for the WLL and mode factor applicable to your hitch configuration (straight, choke, or basket).
- Attach the sling to the crane hook or lifting point using the appropriate hitch. Ensure the sling sits flat and is not twisted, knotted, or bunched.
- Position the sling around or under the load, ensuring even load distribution. For basket hitches, both legs of the sling must support the load equally.
- If the load has sharp edges, fit protective corner sleeves or wear pads to prevent cuts and abrasion damage to the webbing.
- Lift the load slowly and check for balance before continuing. If the load shifts or the sling appears stressed, lower the load immediately and re-rig.
- Move the load to the set-down point, avoiding sudden or jerking movements that could shock-load the sling.
- Lower the load gently and remove the sling. Store flat or hung — never leave webbing slings on the ground where they can be driven over or contaminated.
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 1492-1:2000 — the European harmonised standard for flat woven webbing 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 WLL, length, mode factors, and manufacturer identification. 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). The sling's blue traceability label provides the information required for LOLER thorough examination records.
Safety Information
- Never exceed the rated Working Load Limit (WLL) for the selected hitch configuration. Mode factors reduce the WLL for choke and angled lifts.
- Inspect the sling before every use. Remove from service immediately if cuts, fraying, abrasion, heat damage, chemical contamination, or illegible labelling is found.
- Do not use webbing slings on sharp-edged loads without protective corner sleeves or wear pads — sharp edges can cut through the webbing under load.
- Do not knot or twist the sling to shorten it. Knotting reduces the WLL by up to 50% and creates unpredictable failure points.
- Do not expose polyester webbing slings to acids, bleaches, or strong alkalis. Contact our technical team for chemical compatibility guidance.
- Do not drag loads across the ground using webbing slings — this causes abrasion damage that may not be visible externally.
- Store webbing slings in a clean, dry location away from direct sunlight, heat sources, and chemical exposure. Do not leave on the ground.
- A risk assessment must be carried out prior to any lifting operation. Operation only by persons who are competent and familiar with the equipment.
Inspection and Maintenance
Webbing slings must be visually inspected before each use and undergo a thorough examination at least every six months (or in accordance with an examination scheme) by a competent person under LOLER 1998. All inspections must be documented and records retained. Key inspection points include: cuts or tears in the webbing, abrasion damage or worn fibres, broken or damaged stitching, heat damage or melting, chemical contamination or staining, and legibility of the traceability label. Any sling showing signs of damage must be removed from service immediately and not returned until repaired or replaced. Webbing slings cannot be field-repaired — damaged slings must be disposed of or returned to the manufacturer.
Frequently Asked Questions
Q: What is a duplex webbing sling?
A duplex webbing sling is a flat lifting strap made from two layers of woven polyester webbing stitched together. The dual-layer construction provides greater strength and durability than a single-ply (simplex) sling. Unlike chain or wire rope slings, duplex webbing is soft and flexible, making it ideal for lifting finished goods, painted surfaces, and delicate materials without risk of scratching or damage.
Q: How do I identify the Working Load Limit?
All webbing slings are colour-coded according to their WLL for quick visual identification. This 1 Tonne sling is purple. Each sling also has a blue traceability label displaying the WLL, serial number, length, and mode factors (straight lift, choke, basket). Always check the label before use to confirm the sling is rated for your lift.
Q: What is the difference between straight, choke, and basket hitches?
A straight (vertical) hitch uses the full rated WLL — 1,000 kg for this sling. A choke hitch wraps the sling around the load and back through one eye, reducing the WLL to 800 kg. A basket hitch passes the sling under the load with both eyes on the hook, doubling the WLL to 2,000 kg. The mode factor for each configuration is shown on the sling's traceability label.
Q: Can I use webbing slings with sharp-edged loads?
Webbing slings can be damaged by sharp edges, corners, and abrasive surfaces. When lifting loads with sharp edges, always use protective corner sleeves or wear pads to prevent cuts and abrasion. Inspect slings before each use and remove from service if cuts, fraying, or damage to the webbing is visible.
Q: Why is polyester better than nylon for lifting slings?
Polyester has lower stretch than nylon (maximum 3% vs 6–8%), providing more predictable load control during lifting. Polyester also resists water absorption and maintains its full strength when wet, unlike nylon which can lose up to 15% of its rated capacity in wet conditions. This makes polyester slings the preferred choice for outdoor construction and marine-adjacent environments.
Q: How often do webbing slings need to be inspected?
Webbing slings must be visually inspected before every use by the operator. In addition, LOLER 1998 requires a thorough examination by a competent person at least every six months, or in accordance with a written examination scheme. All inspection records must be documented and retained.
Q: Are these slings CE marked and UKCA compliant?
Yes. Plumalti duplex webbing slings are CE marked in accordance with EU Machinery Directive 2006/42/EEC and are UKCA compliant for the Great Britain market. Each sling is manufactured to BS EN 1492-1:2000, individually serialised, and supplied with full traceability documentation.
Q: What temperature range can these slings operate in?
Plumalti polyester webbing slings can be used in temperatures from -40°C to +100°C without loss of performance. Do not use webbing slings in environments where they may be exposed to acids, bleaches, or chemicals that could degrade the polyester fibres.
