Lift sling rigging company produce 50 Tonne Round Sling,WLL 50T 50000kg Polyester Round Slings, Heavy Duty round lifting sling.
50 Tonne Round Sling
الف 50 tonne round sling is a heavy-duty polyester sling rated 50 تی (50,000 کیلوگرم) in a vertical lift, با یک 350 t minimum breaking load on a 7:1 فاکتور ایمنی. A parallel core of high-tenacity polyester carries the weight inside a woven sleeve; the sleeve takes the abrasion, and no metal on the sling ever touches the load.
Fifty tonnes is the middle of the heavy range. It covers steel coil packs, precast sections, machine beds and fabricated frames without the bulk of a 100 t sling — heavy enough that the lift has to be planned, still light enough to rig by hand with two people. We build the 50t round sling as an endless round sling or an eye and eye round sling, to the length you specify.
- 50 t vertical working load limit — 50,000 kg on the label
- 350 t minimum breaking load at a 7:1 فاکتور ایمنی
- 40 t choked; 100 t in a basket at 0–7°
- Double-wall sleeve recommended at this capacity
- Endless or eye-and-eye; 2–12 m standard, طولانی تر برای سفارش
- Load tested, with test figures and a certificate on request
50 Tonne Round Sling Rating and Configuration
The figure on the label is the عمودی rating. Every other arrangement is that figure multiplied by a mode factor, and at 50 t the gap between one arrangement and the next is measured in tens of tonnes.
| Configuration | Mode factor | Rated capacity |
|---|---|---|
| عمودی | 1.0 | 50 تی |
| خفه شده | 0.8 | 40 تی |
| سبد, 0–7° | 2.0 | 100 تی |
| سبد, 7-45 درجه | 1.4 | 70 تی |
| سبد, 45-60 درجه | 1.0 | 50 تی |
را 350 t minimum breaking load is a property of the sling itself; the mode factors change what you may lift, not what the sling can take. Confirm the arrangement before the lift.
What Changes at 50 Tonnes
At 50 t the core becomes a multi-bundle parallel yarn core and the sleeve a genuinely bulky tube — around 90 mm across in double-wall construction. The sling weighs roughly 6.5 kg per metre, so a 6 m eye-to-eye sling is close to 39 کیلوگرم: a two-person lift at the hook, or a forklift if it has to travel far. A sleeve that size also cannot be gathered into a very short eye-to-eye distance, so a minimum length applies and rises with the capacity. Tell us the capacity and the length together, and size the hook bowl and shackle for a 50 t termination rather than for the tonnage alone — an under-rated shackle becomes the weak link in a 350 t sling.
مشخصات فنی
| نام محصول | 50 tonne round sling / 50 t round sling / 50 ton round sling / WLL 50T polyester round sling / 50,000 kg round sling |
|---|---|
| محدودیت بار کاری | 50 t vertical (50,000 کیلوگرم); choked 40 تی; basket 50–100 t by angle |
| Minimum breaking load | 350 t at a 7:1 فاکتور ایمنی |
| Core | High-tenacity polyester parallel yarn, multi-bundle; aramid core available on request |
| Sleeve | Woven high-tenacity polyester, single or double wall; double wall recommended at 50 تی |
| فسخ | Endless loop, or two stitched eyes (eye-to-eye, with or without thimbles and wear pads) |
| Body diameter | تقریبا. 90 mm in double wall — reference value, confirmed on the drawing |
| Mass | تقریبا. 6.5 kg per metre of body — reference value; a 6 m sling is about 39 کیلوگرم |
| Length | Eye-to-eye 2–12 m standard, or circumference 2–24 m for endless; طولانی تر برای سفارش. A minimum length applies |
| ازدیاد طول | Around 3% at working load, so headroom is not lost under load |
| Reference standard | در 1492-2 as standard practice; other safety factors and market-specific standards produced to order |
| رنگ | No EN colour code above 12 t — the sewn label governs; sleeve colour to order |
| علامت گذاری | برچسب دوخته شده با محدودیت بار کاری, طول و دسته; sleeve print such as SWL 50T / L6M |
| بسته بندی | Coil in a poly bag, کارتن برچسب دار, pallet for long lengths, بسته بندی صادراتی سفارشی |
| MOQ & OEM | MOQ پایین برای سفارشات آزمایشی; full OEM on length, sleeve, رنگ, فیبر, label and packing |
Length and Mass
| Eye-to-eye length | تقریبا. mass | استفاده معمولی |
|---|---|---|
| 2 متر | 13 کیلوگرم | Shortest practical length; tight headroom, single choke |
| 3 متر | 20 کیلوگرم | General vertical and choked lifts |
| 4 متر | 26 کیلوگرم | Basket lifts on plant and castings |
| 6 متر | 39 کیلوگرم | The most common size — coils, frames, machine beds |
| 8 متر | 52 کیلوگرم | Long fabrications and pipe spools |
| 10 متر | 65 کیلوگرم | Structural steel and long bundles |
| 12 متر | 78 کیلوگرم | Longest standard length; above this to order |
An endless sling is ordered by circumference, and because the loop is doubled when it hangs the usable height is roughly half of it. الف 12 m circumference gives about 6 m of working length.
Two-Leg and Four-Leg Assemblies
Most 50 t slings go into a multi-leg assembly rather than a single vertical hitch. The figures below are for symmetrical loads with the legs at equal angles — an uneven load puts the whole share on fewer legs.
| Assembly | Leg angle to vertical | Total capacity |
|---|---|---|
| 2-leg | 0-45 درجه | 70 تی |
| 2-leg | 45-60 درجه | 50 تی |
| 3-leg and 4-leg | 0-45 درجه | 105 تی |
| 3-leg and 4-leg | 45-60 درجه | 75 تی |
A four-leg assembly is rated as three legs, the usual convention, because a rigid load rarely shares evenly across four. Where a two-leg assembly would open into a wide angle, a lifting beam or spreader beam keeps the legs vertical and the full rating available.
Endless or Eye-and-Eye
Both are built on the same 50 t core and the same sleeve; the difference is the termination. An endless loop rigs vertically, choked, in a basket or double-wrapped, and the whole loop can be rotated to move wear away from the bearing point. An eye-and-eye sling has a defined length and two defined pick-up points, which makes repeat lifts repeat exactly and makes hooking and shackling quicker.
Construction detail for each is on the endless round sling و eye and eye round sling pages. For a hot load, را aramid round sling و high temperature round sling carry the same class of rating in a fibre that tolerates heat.
هندلینگ, Marking and Inspection
بالا 12 t the EN 1492-2 colour code no longer identifies the capacity, so the sewn label and the sleeve print are the only reliable statement of what the sling is rated for. Read the label, not the colour.
- Check the label every use — working load limit, طول و دسته, legible and still attached.
- Run the sleeve through your hands - برش ها, سایش, glazing and hardening are all grounds for a closer look.
- Core exposure retires the sling — anywhere the core shows or bulges through the sleeve, it comes out of service immediately.
- Inspect the eyes first on an eye-and-eye sling — the stitch rows and the gather at each eye carry the whole load.
- Never drag a loaded sling — dragging spends the strength of the sleeve faster than any lift.
- Store it coiled, off the floor, out of sunlight and away from heat, where it can be inspected.
Load Testing and Documentation
Every sling is checked on its sleeve, its termination, its eye-to-eye length and its label before packing, and slings are load tested to verify the rating. On request the consignment can travel with the fibre certificate, the batch test figures and a test certificate. If your project calls for a witnessed test or a third-party inspection, tell us before the order — the certification page lists the management systems behind the process.
Where 50 Tonne Round Slings Are Used
- Steel coil, slab and plate packs, where a soft bearing protects the surface
- Precast concrete sections, piles and structural steel
- Machine beds, dies, castings and machined components
- Welded frames and fabrications lifted in a basket or two-leg assembly
- Pipe spools, shafts and rolls, where the round body wraps the curve
- Shipyard blocks, marine modules and wind turbine components
For sheared edges and hot work, compare webbing slings و wire rope slings before assuming a round sling is the right tool; above this class, را 100 tonne round sling covers the next step up, and the full range of polyester round slings from 1 تی به 100 تی is on the category page.
سوالات متداول
How much can a 50 tonne round sling lift?
50 t in a vertical lift, which is the figure on the label. خفه شده, it is rated 40 تی. In a basket it is 100 t at 0–7°, 70 t at 7–45° and 50 t at 45–60°. The capacity you actually have depends on the arrangement, so confirm the arrangement before the lift.
What is the breaking strength of a 50 tonne round sling?
350 t minimum breaking load, from a 7:1 safety factor on the 50 t working load limit. Where a market requires 6:1 or 8:1, the sling is produced to that factor and the label is marked accordingly.
Is a 50 t round sling colour coded?
خیر. The EN 1492-2 colour code runs from 1 تی به 12 تی, so a 50 t sling carries no capacity colour. The working load limit on the sewn label and the sleeve print are what govern — never read the capacity of a heavy sling from its colour.
Can it be made to a custom length?
بله. Eye-and-eye slings are made to the distance between the eyes; endless slings are made to a circumference. A minimum length applies and it rises with the capacity, because a 50 t sleeve cannot be gathered into a short span. Send the pick-up distance or the working height and we will confirm what is possible.
How heavy is a 50 tonne round sling?
الف 6 m eye-to-eye sling in double-wall polyester is around 39 کیلوگرم, and mass rises by roughly 6.5 kg per metre. Plan two people or a forklift for handling, keep it off the ground and never drag it.
Do you supply test certificates with the order?
بله. The fibre certificate, the batch test figures and a test certificate can travel with the consignment on request. Tell us the standard marking or third-party inspection your market needs before the order, so the documentation is agreed with the specification.
Request a 50 tonne round sling quote — send the load, the pick-up points, the arrangement and the environment, plus the marking and certification your market requires. We will come back with a length, a sleeve, a test figure and a factory-direct price.