The Working Load Limit is abbreviated as WLL. The working load limit, unless otherwise noted, is the maximum safe force that a piece of lifting equipment, lifting device or accessory can exert to lift, suspend, or lower, a given mass without fear of breaking. Usually marked on the equipment by the manufacturer. In polyester slings, the working capacities, following the standards, express the working load limits. The safety factor is the ratio of the strength value used in the design of a mechanism to the maximum strength that the material can withstand. The polyester sling working load limit can increase from 0.5 tons to 200 tons. Polyester slings are produced with a safety factor of 7:1. Tape thickness can be produced from 25 mm to 40 m. It can also be manufactured with different lengths, meter and safety factor designs, depending on the needs.
What are the Features of Polyester Slings?
Polyester slings take first place among the safe lifting materials used in many sectors. Polyester slings have a wide variety of specifications.
- The safety factor of polyester slings is 5:1, 6:1 and 7:1.
- They are produced per the EN 1492-1 and EN 1492-2 standard.
- It is produced with a herringbone weave, which is highly resistant to sharp corners.
- It exhibits superior resistance to abrasion.
- The working load limit of polyester slings ranges from 0.5 to 200 tons. It also has a working length of up to 40 m.
Important Warnings in the Use of Polyester Slings
For longer life and effective use of polyester slings, some important points should be considered during their use.
- The weight of the load and the Working Load Limit (WLL) must be known.
- The sling should be chosen according to the sling weight table.
- The crane hook must be lowered vertically onto the centre of gravity.
- Unbalanced overhanging loads must be lowered and fixed flat again.
- The lowering of the load must be done according to the instructions of the operator using the sling.
- Necessary precautions should be taken against the overturning or dispersion of the load.
- Unused slings should not hang over the load.
- It is necessary to prevent breaking and sudden movement loads.
- Loads must not be towed while under the lifting sling.
- Lifting slings must not be dragged over uneven surfaces.
- The load should not be kept suspended on the lifting sling for a long time.
For more detailed information about the products, you can contact Halatsan’s sales team.