Frequently Asked Questions
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What is the (WLL) working load limit?
Working Load Limit (WLL) is the maximum working load designed by the manufacturer. This load represents a force that is much less than that required to make the lifting equipment fail or yield. The WLL is calculated by dividing MBL by a safety factor (SF).
What is the minimum break load/force?
It is a calculation of the Minimum Breaking Strength, Minimum Breaking Load divided by a safety factor, usually ranging from 4 to 6 on lifting equipment. The factor can be as high as 10 to 1, if the equipment has poses a risk to a persons life.
Can I use grade 70 chain for lifting?
Grade 70 chain. Grade 70 chain is transport chain manufactured in heat-treated carbon steel. As the name suggests, its used as tie downs on over-the-road trailers so its also known as truckers chain. Its never to be used for overhead lifting
What is lifting equipment?
When someone says lifting equipment, you may be picturing gigantic cranes, telehandlers, and forklifts. However, the lifting equipment definition actually encompasses any equipment that is used for lifting loads. That means that numerous accessories, such as hoists, are also included within the lifting equipment definition.
What is lifting tackle?
lifting tackle means any chain, sling, rope sling, hook, shackle, swivel, coupling, socket, clamp, tray or similar appliance, whether fixed or movable.
Why is the safety of your lifting equipment so important?
Poor or no maintenance, or machines may be used improperly through inexperience or lack of training. Parts of the equipment may fail and loads may drop. Before you start using any equipment you need to think about what risks may occur and how these can be managed.
How often should my lifting equipment be tested?
You can arrange for the thorough examination to be carried out - at regular intervals (either at least every 6 months or 12 months depending on the conditions and frequency of use.
How often should my height safety equipment be tested?
The requirements for the maintenance of height safety equipment are 6 monthly inspections; By a height safety equipment inspector, may require to be inspected more frequently depending on use
What is the strongest grade of chain?
Grade 120 chain is newer and is currently the highest strength chain in the industry. This chain provides a 20 percent higher strength than G100 and 50 percent higher than G80.
What is a web sling?
Webbing slings are usually made from polyester, and are designed to lift heavy loads. Our range of polyester webbing slings in particular is suitable for loads from 0-6 tonnes. Webbing slings are flexible, lightweight and have a wide bearing surface, which helps protect the load you are lifting.
The information provided is of a general nature only, and is not intended to address specific circumstances of any particular individual or entity. We may change, add to, delete from, or otherwise amend the content of this site. HMH makes no warranties, guaranties or undertakings as to results that may be obtained from information contained on this web site. Information provided is not professional advice. Specific advice should be sought from us directly to suit each situation.