Lift sling rigging company produce 4Tonne Webbing Sling Lengths from 2mtr to 10mtr EWL Available,WLL 4 Ton Polyester Webbing Sling,4 Tonne Round Endless Webbing Lifting Slings,4Tonne Flat Web Lifting Sling,4 Tonne Polyester Duplex Webbing Lifting Sling,4000 Kg Web Sling,4000kg Duplex Grey Flat Webbing Slings,4 Tonne Duplex Web Sling.
4吨带吊索长度从 2 米到 10 米 EWL 可供选择
Grey is the colour that gets a second look on a rack, because an unmarked grey sling looks like a sling nobody rated. And 4 tonnes is the size where most lifts use two legs — which means the number on the label matters less than whether the two slings are actually the same length.
A Pair Is One Item, Not Two
Two legs only share a load when they are the same length. If one is 40 mm longer, the shorter one carries more — sometimes all of it — and the label on both still says 4,000 公斤. On a two-leg lift the pair is rated as a pair, so the pair has to be built as a pair.
What ±3 % Looks Like in Millimetres
| EWL | Allowed band | Worst-case pair mismatch |
|---|---|---|
| 2 米 | ± 60 毫米 | 120 毫米 |
| 4 米 | ± 120 毫米 | 240 毫米 |
| 6 米 | ± 180 毫米 | 360 毫米 |
| 8 米 | ± 240 毫米 | 480 毫米 |
| 10 米 | ± 300 毫米 | 600 毫米 |
Tolerance to EN 1492-1 on EWL. Two slings bought separately can legally differ by 0.6 m at 10 m — and still both be “10 m”.
Where 2 m Stops and 10 m Starts
The short end is for chokers and bench work, where the hook is already close to the load. The long end is for hooks that sit high — a spreader on a crane block, a four-point lift over a casing. Anything between is made to the number you give us, so there is no reason to accept a 6 m sling when the geometry wants 5.6 米.
Grey Gets Checked Twice
在 1492-1 gives 4 t the grey code — one step above the 3 t yellow and below the 5 红色. On a mixed rack grey reads as “no colour”, which is exactly why an unmarked grey sling gets pulled by an inspector while a scruffy yellow one gets waved through. The colour is not the proof; the label is.
Every sling carries WLL, EWL, material, CE, manufacturer and a batch serial. If the label is missing, faded or the serial does not resolve, the sling is a grey strap with a story.
The Numbers
| 财产 | 价值 | 笔记 |
|---|---|---|
| 工作负荷极限 | 4,000 公斤 | 垂直的, eyes seated |
| 最小破断载荷 | 28,000 公斤 | 7:1 因素 |
| Body width | 100 毫米 | Single ply; duplex on request |
| EWL range | 2 m – 10 米 | Intermediate lengths to order |
| 窒息 | 3,200 公斤 | 0.8 因素 |
| 2-leg, 0–45° | 5,600 公斤 | 1.4 因素 |
| 2-leg, 45–60° | 4,000 公斤 | 1.0 因素 |
Gallery
Buyer Questions
你能供应吗 4 tonne slings as a matched pair?
是的, and it is the only way we recommend buying them for a two-leg lift. Both slings come off the same batch and are measured against the same reference, so the difference stays inside one tolerance band instead of two.
How long is a 4 tonne sling with 2 m EWL?
2 m between the bearing points of the two eyes. The eyes themselves sit outside that figure, so overall length is longer — typically by 300–400 mm depending on eye size. If the eye length matters for your hook, tell us at quotation stage.
Why are 4 tonne slings grey?
在 1492-1 assigns grey to 4 t: 绿色的 2 t, 黄色的 3 t, 红色的 5 t, 蓝色的 8 t, 橙子 10 t. Grey is the one colour that looks like “no rating”, which is why marking matters more here than on any other size.
What is the length tolerance?
±3 % of EWL to EN 1492-1 — ±120 mm on a 4 m sling. Two slings bought at different times can both pass and still differ by 240 毫米, which is why pairs should be ordered together.
Can I use a 4 t sling where a 5 t was specified?
Only if the actual load and hitch allow it. A choked 4 t sling is rated 3,200 公斤, so it is a different sling from a 5 t choked at 4,000 公斤. Check the hitch before you substitute on price.
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