Lift sling rigging company produce 50 Ton Polyester Webbing Slings – Lifting Slings as 1353,50 ton Flat Web Sling,50T Webbing Round Lifting Polyester Strop/ Strap/ Sling
50 Ton Polyester Webbing Slings – Lifting Slings as 1353
الف 50 ton polyester webbing sling is the last size in the flat webbing range that is still a single band, and it is the point where the band stops behaving like a hand tool. At 50,000 kg vertical the webbing is 600 mm wide in four plies, a metre of it weighs about 5 کیلوگرم, and an 8 m sling arrives as a 43 kg coil that two people lift onto the hook. Everything below is written for that reality: the build, the weight, the hitch figures, و AS 1353 marking the Australian and New Zealand market asks for.
Built on the width, not on the number
Capacity in a flat sling comes from the number of load-bearing warp yarns, and the yarns only fit into width and ply. In a 300 mm quadplex band this range stops at 48 تی, which is why the 50 t figure is delivered on a 600 mm four-ply باند: double the width, double the stitch rows at each eye, and a bearing face wide enough to keep the pressure on steel plate inside limits. If a hook bowl, shackle or headroom will not take 600 میلی متر, say so at enquiry — a narrower heavy build is possible, but the width, the eye length and the hook opening have to be settled together rather than one after the other.
پارامترهای فنی
| Product | 50 ton polyester webbing sling — flat eye & eye, AS 1353 |
|---|---|
| Webbing | 100% پلی استر با مقاومت بالا (PET), four-ply, 600 میلی متر عرض, approx. 6 mm thick |
| محدودیت بار کاری | 50,000 کیلوگرم (50 تی) per leg, حالت عمودی |
| فاکتور ایمنی | 7:1 - 350,000 kg minimum breaking load |
| ازدیاد طول | 7% یا کمتر در حد بار کاری |
| Length | 1–20 m eye to eye as standard; طولانی تر برای سفارش |
| به پایان می رسد | Reinforced flat eye at each end, eye length matched to the hook or shackle bowl |
| وزن | تقریبا. 5 kg per metre of band |
| دمای کاری | -40 درجه سانتیگراد تا +100 درجه سانتی گراد |
| رنگ | Orange as standard; WLL colour coding to the buyer’s site procedure on request |
| علامت گذاری | Sewn label plus printed band: WLL, length and mode factors, استاندارد, batch number, date |
| استاندارد | AS 1353.1 flat woven webbing slings; در 1492-1 and ASME B30.9 builds on request |
| Test | Proof loaded to 2 × WLL; certificate and test report supplied with each sling |
| OEM | Length, eye form, رنگ, بافته های چاپی, own label, coil or carton |
What 50 tonnes actually lifts, by hitch
The label figure is the vertical rating. Every other arrangement is that figure multiplied by the mode factor, and at this size the difference between two hitches is tens of tonnes — 20 t of capacity disappears the moment the band is choked.
| Hitch | Mode factor | Capacity of one 50 t sling |
|---|---|---|
| عمودی | 1.0 | 50,000 کیلوگرم |
| خفه شده | 0.8 | 40,000 کیلوگرم |
| سبد, legs 0–45° | 2.0 | 100,000 کیلوگرم |
| سبد, legs 45–60° | 1.4 | 70,000 کیلوگرم |
| دو پا, 0-45 درجه | 1.4 | 70,000 کیلوگرم |
| دو پا, 45-60 درجه | 1.0 | 50,000 کیلوگرم |
Weight and coil — the part the drawing does not show
الف 50 t band cannot be folded into a bag and carried up a ladder. Weights below are for the finished sling including both eyes, ±5%, and they are the reason a heavy sling is ordered as a coil on a pallet rather than loose.
| Length, eye to eye | Sling weight | Coil diameter | Handling on site |
|---|---|---|---|
| 6 متر | ~33 kg | ~420 mm | Two people |
| 8 متر | ~43 kg | ~480 mm | Two people |
| 10 متر | ~53 kg | ~520 mm | Two people, or pallet and sling |
| 12 متر | ~63 kg | ~560 mm | Pallet and two people |
AS 1353 — what actually changes for the Australian buyer
AS 1353.1 covers flat woven webbing slings made from synthetic fibre, and it is the standard named on most Australian and New Zealand purchase orders for this class of sling. The webbing, the stitching and the 7:1 factor are the same as an EN 1492-1 build; three things around them change:
- The label set. محدودیت بار کاری, طول, mode factors, the standard number, سازنده, batch and date, in the wording AS 1353.1 asks for rather than the EN layout.
- The paperwork. A test certificate citing AS 1353.1, with the batch traceable to the sling in the coil.
- The colour as a second check. Colour coding by WLL is used on site as a fast identifier, and the printed label remains the figure that governs the lift.
If a specification names an edition — “AS 1353:2026” on a tender, for example — put that edition on the purchase order and we mark and certify to the edition you name, so the paperwork and the sling agree when the inspector reads them side by side.
Rigging notes at 50 tonnes
- Fittings of the same class. الف 50 t leg needs a bow shackle and hook of matching rating, and the eye has to clear the bowl. الف 600 mm band on an undersized hook is a bearing problem, not a styling one.
- Keep the legs vertical with a spreader. Two 50 t legs pulled together at 45–60° deliver 50 تی, not 100 تی. الف پرتو پخش کننده بالابر holds the legs parallel and the load level, and it is the usual answer above 30 تی.
- Protect the edge before the lift, not after. At this load a sheared plate edge cuts through a band in a single lift. Sleeves or corner protectors are part of the specification, and they are cheaper than the sling.
- Do not plan a choked lift at 50 تی. Choked capacity is 40 تی. If the load can only be choked, buy the next size up or re-think the hitch.
Test, certificate and delivery
Every sling is proof loaded to 2 × WLL on our own horizontal bed before it is coiled, and the certificate carries the batch number that is printed on the band. The band is woven after the length and the eye are fixed, so lead time is quoted per order rather than published as a fixed figure. بار را به ما بگویید, the hitch, the length eye to eye, the hook or shackle it will sit in, and the standard — request a quotation and we will confirm the width, the eye and the marking before the band is woven.
سوالات متداول
Why is a 50 t sling 600 mm wide instead of 300 میلی متر?
Because capacity lives in the yarn, and the yarn lives in width and ply. الف 300 mm quadplex band reaches 48 t in this range; 50 t needs the 600 mm four-ply build. The wider band also halves the bearing pressure on the load, which matters on plate, coated sheet and finished work.
How much does a 50 ton webbing sling weigh?
About 5 kg per metre of band: تقریبا 33 kg at 6 متر, 43 kg at 8 متر و 53 kg at 10 متر, eyes included. Plan the handling before the lift — a heavy sling is normally coiled onto a pallet and lifted into position.
Can two 50 t slings lift 100 tonnes?
Only with the legs vertical. In a two-leg lift at 0–45° the pair gives 70 تی, and at 45–60° it gives 50 تی. Where the load is wider than the hook, a spreader is what restores the figure.
Is an AS 1353 sling different from an EN 1492-1 sling?
The band and the 7:1 factor are the same. The label wording, the standard cited on the certificate and the edition marked on the sling are what change. State the standard and the edition on the order and the two documents will match.
Do you supply the test certificate with the sling?
Yes — each sling is proof loaded to 2 × WLL and shipped with a certificate and test report from our CNAS-accredited laboratory, batch-matched to the number printed on the band.
Related slings and fittings
- Polyester webbing slings — the full range from 0.5 تی به 50 تی
- 20 ton polyester webbing sling — the two-leg workhorse below this size
- 30 t webbing sling — where the weight is still manageable by hand
- Wide body webbing sling — width chosen by the pressure the load will accept
- Eye and eye webbing slings — end forms and eye lengths explained
- Polyester round slings — the alternative form where the load is round
- Lifting spreader beams — to keep 50 t legs vertical
Send the load, the hitch and the length eye to eye. We will come back with the width, the eye, the standard and the certificate, and a quotation you can put against the tender.