1Ton Endless Webbing Sling - violet WLL band with 1 black capacity stripe on 25 mm webbing

1. What Is a 1Ton Endless Webbing Sling?

An endless webbing sling — Type A in EN 1492-1 — is a flat woven synthetic sling formed as a continuous loop: a length of webbing is lapped back over itself and stitched to close the loop. There are no eyes to hook and no fittings to lose.

One point about the loop needs stating plainly, because it is widely mis-sold. An endless sling is often described as seamless, as having no seams and no weak points. That is not accurate. An endless sling is closed by a stitched lap splice — that is how the loop is made. What the design actually gives you is three real advantages:

• The joint is a long overlap, not a short eye. The splice runs along the webbing at an overlap, instead of being concentrated into a reinforced eye that takes the whole hook load in a small area.

• The loop can be rotated. After each lift the sling can be turned so that no single section — splice, hook contact point or bearing area — accumulates all the wear.

• The whole circumference is usable bearing area. There is no fixed eye position, so the sling can be positioned wherever the load and the hook require.

Where the 1 tonne band sits, and what makes this page different from its siblings. The 1 t band is the smallest standardised band in the range, it is the band sold at the narrowest webbing width the standard allows, and it is the band most often bought by people who are not riggers — plumbers, HVAC fitters, warehouse and maintenance staff. That combination is what this page is built around, so it concentrates on four questions rather than on the colour code:

• What does the 1 t band actually certify, and what is it not telling you? (section 2)

• At 1 t, several different slings will fit the load — why choose this one? (section 4)

• The band is only 25 mm wide. What does that do to the hook, the shackle and the load edge? (section 5)

• Is the 1 t rating a general-purpose rating? (section 7)

The hitch ratings are in section 3, the one-versus-two sling decision is in section 6, and the full technical data is in section 8.

2. Violet, One Stripe, 25 mm: What the 1 t Band Certifies

A 1 tonne endless webbing sling carries two mandatory marks that are read in one glance:

• Violet webbing — the colour EN 1492-1 assigns to the 1 t working load limit band.

• 1 black transverse stripe — one stripe for every tonne of working load limit, so a 1 t sling carries one.

The colour code runs from 1 t (violet) to 10 t (orange); the full table, band by band, is set out on the 8 ton endless webbing sling page.

What violet does not certify. This is the part that matters on a light-duty lift, because a 1 t band looks like a general-purpose strap and is treated like one:

• It does not certify the fibre. Colour says which band the sling is rated at; the label colour says which fibre it is — blue for polyester, green for polyamide, brown for polypropylene.

• It does not certify the safety factor. A 1 t marking means 7 t minimum breaking load only if the sling was built to EN 1492-1. Under ASME B30.9 at 5:1 the same 1 t marking means 5 t, and under AS 1353 at 8:1 it means 8 t.

• It does not certify the length, the manufacturer, the age or the condition of the sling, and it says nothing about the hitch you are about to use.

• It does not certify that the sling is fit to lift people, to tow with, or to stay in place as a permanent tie (section 7).

The 25 mm point, which is specific to this band. EN 1492-1 covers webbing widths from 25 mm to 450 mm. The 1 t band is designed at 25 mm — the narrowest width the standard covers — and that is half the 50 mm width of the 2 t band, so it presents roughly half the bearing area of the 2 t sling on the same load. That does not reduce the rating: the band is rated 1 t because that is what it is built and tested to. What it does mean is that on a soft, finished or easily marked load the 25 mm band is the binding constraint, not the capacity, and the answer is to spread the load over more pick points or fit a sleeve — not to buy a bigger band (section 5).

3. The 1 t Sling in Every Hitch

The figure on the colour and on the label is the straight-lift figure. The figure you compare with your load is that rating multiplied by the mode factor of the hitch you are using:

Read the percentages in the right direction, because this is where 1 t picks go wrong.

• Choking costs you 20% of the rating. The choked figure is 0.8 t, which is 20% below the 1.0 t straight rating — not 0.8% or “about the same”. A 0.9 t motor cannot be choked on a 1 t sling.

• A parallel basket hitch doubles it. At 2.0 t the basket figure is 100% above the straight rating, because the load is carried by two parts of the webbing rather than one. That is an increase of 100%, not “2 t of margin”.

• A choked lift at 45° costs 30%. The figure falls to 0.7 t, which is 30% below the straight rating — one and a half times the loss of a straight choke.

Where the 1 t band is actually used. Most 1 t work is either a straight lift on a small assembly or a two-point basket on a pipe, a bundle or a crate. Plan the pick around 0.8 t, not 1 t: the sling that gets overloaded is the one whose method statement was written around the headline figure.

4. Choosing the Sling for a Light Lift: This Band Against the Alternatives

At 1 t several kinds of sling will physically fit the load, so the choice is not decided by capacity. It is decided by what the load will tolerate, how heavy the rigging is to handle, and whether the edge is sharp.

What that table comes down to. The 1 t endless webbing sling wins on three counts at once: it is light enough to carry one-handed, it will not mark a finished or painted surface, and its loop can be repositioned so the wear moves around the webbing. It loses to a wire rope or chain sling on exactly one count — an unprotected sharp edge — and that is a fixable problem rather than a reason to change product (section 5).

A note on capacity when you compare. Compare like with like. A 1 t round sling and a 1 t flat webbing sling both carry 1 t, but only the flat webbing sling is Type A under EN 1492-1. If a supplier describes a flat webbing sling as a round sling, or the other way round, the standards are being mixed.

5. Fitting a 25 mm Band to the Hook, the Shackle and the Load

The 1 t band is the narrowest band in this range, so on a light pick the interface — not the capacity — is usually what decides whether the lift is safe. Five interfaces are worth checking every time.

The practical rule for this band. If the edge or the hook is the weak link, fix the edge or the hook — fit a sleeve, dress the burr, use a larger shackle. Buying a heavier sling does not solve an interface problem: a 3 t band cut by the same burr fails in the same place.

6. One 2 t Band or Two 1 t Bands?

This is the most common decision at the light end of the range, and the answer is not “the bigger band is always safer”.

The arithmetic that people get wrong here. Two 1 t slings do not make a 2 t sling. Used together as a two-leg assembly with the legs within 45° of vertical, the standard assembly factor is 1.4, so the pair is rated 1.4 t — which is 40% more than one 1 t sling, not 100% more. The same trap appears in the other direction: a 1.4 t load that “two 1 t slings will obviously take” leaves the assembly with no margin at all, because 1.4 t is exactly the assembly rating.

And the assembly is only as strong as its weakest sling. Two slings that will be used as a pair should be the same capacity, the same fibre and the same length, and they should be kept together as a set — mixing a 1 t and a 2 t sling in one assembly gives a pair limited by the 1 t sling and an unbalanced pick.

The full assembly table for two-, three- and four-leg picks, including the 2.1 factor that rates a four-leg assembly as if only three legs carry the load, is on the 2 ton endless webbing sling page.

7. What the 1 t Rating Does Not Cover

A 1 t band is light, cheap and looks like a strap, which is exactly why it gets used for jobs it was never rated for. The rating covers lifting a static load of 1 t in a straight lift. It does not cover the following duties at any load.

Why this list belongs on a 1 t page rather than a 5 t page. It is the light band that ends up in a van or a workshop drawer and gets used as a general-purpose strap. A 1 t band used to tow a car, to hold a load down, or to lift a person will fail — not because the sling is poor, but because none of those duties is a 1 t straight lift.

8. Technical Specifications

Reading that table. The 7 t minimum breaking load is a destruction figure derived from the 7:1 factor — it is not a working capacity and must never be used as one. The elongation figures describe what polyester does under load: 3% or less at the working load, up to 10% at the breaking load.

The same 1 t sling is a different object under a different standard. At the EN 1492-1 factor of 7:1 it must survive 7 t. Under ASME B30.9, where the design factor for these slings is commonly 5:1, a 1 t rating corresponds to 5 t. Under AS 1353 at 8:1 it corresponds to 8 t. Three slings, all marked 1 t, all built to a materially different margin — which is why the standard reference on the label matters as much as the number beside it.

9. Applications

Four habits that get the most out of a 1 t band:

• Rotate the loop between lifts. The endless design lets you move the wear point, the splice and the hook contact point around the webbing; if the same section always sits in the hook, an endless sling wears no better than an eye-to-eye sling.

• Plan the pick around 0.8 t, not 1 t. The 1 t band's usable choked capacity is 0.8 t, and a method statement written around the headline 1 t is the one that overloads the sling.

• Protect the edge before you protect the capacity. On a 25 mm band the edge is usually the failure point, and a sleeve costs less than a sling.

• Keep the pair together. If the slings are used as a set for a two-leg pick, store and inspect them as a set, and replace both when one is retired.

10. Inspection, Care and Retirement

Care rules:

• Never use a polyester webbing sling below −40 °C or above +100 °C.

• Do not drag the sling on the floor or across abrasive surfaces, and never pull it out from under a load resting on it.

• Do not twist, knot, shorten or lengthen a sling, and never repair one. Repairing a stitched lap splice is not possible on site.

• Clean with mild soap and water and dry naturally; do not machine dry or heat dry.

• Store dry, dark and off the floor, away from oil, chemicals and sharp edges.

• Inspect before every use, and record a documented periodic inspection. In an assembly, inspect every sling in the set, and keep sets together.

A sling should be cut through before disposal so that it cannot be put back into service by mistake.

11. Frequently Asked Questions (FAQ)

Contact us - 1Ton Endless Webbing Sling direct from the manufacturer

Tell us the load, the rigging and the destination market, and we will come back with the specification and price for your 1Ton Endless Webbing Sling. Volume discounts apply, and we build to order in single or double ply, in polyester, nylon or polypropylene, in any length, with violet webbing and one black capacity stripe as standard for the 1 tonne band. Matching sets for two-leg and four-leg assemblies are supplied on request.

• Contact: Wang Lili

• Phone: 18066002268

• E-mail: 702461526@qq.com

• Address: Lifute Industrial Park, Taizhou City, Jiangsu Province, China

• Send an enquiry >>