EWL – Effective Working Length
You have probably come across the abbreviation EWL if you work with lifting. You can find it on labels, in user instructions or in product texts, but do you know what it means?
Learn more about EWL
EWL stands for Effective Working Length, and it usually refers to the lifting equipment used in the lifting operation. It is an important factor in lifting safety and the engineering design of lifting equipment and cranes.
In the context of lifting, EWL is the actual length of the part of the crane, sling, lifting hook or lifting tool that is in direct contact with the lifted object. This means that it is the part of the equipment that lifts the load and is affected by the lifting operation.
Understanding EWL is essential to ensure that the lifting equipment and cranes are correctly rated for the specific lifting operation. If the EWL is not sufficient to handle the required load, it can lead to overloading, breakdown of the equipment or worst case accidents.
In a round sling, EWL is measured as the internal length when the round sling lies flat and is pulled out completely by hand.
To use EWL correctly in lifting operations, one must
Identify the right EWL: This involves knowing the various components and lengths of the lifting equipment and how they combine to achieve the overall EWL.
Calculate the load: It is important to know how heavy the load to be lifted is, as this will affect the choice of the right lifting equipment and its EWL.
Choose the right equipment: Based on the load and the required EWL, choose the right lifting equipment that can handle the operation safely and efficiently.
Monitor and maintain: As the lifting operation is carried out, the equipment must be continuously monitored to ensure that everything is working as it should. Regular inspection and maintenance is also important to maintain equipment performance and safety.
Shortly, EWL refers to the actual working length of the lifting equipment in a lifting context and is used to ensure safe and efficient handling of heavy or large objects by choosing the right equipment and avoid overloading.
Do you have any questions?
If you have any questions, please send us a message and we will be happy to help.
Do you know these terms?
When you work with lifting gear you probably come across terms like WLL, SWL and MBL, but do you know what they stand for? Otherwise, read this short article.
Download a load diagram
We have collected load tables for chain slings, wire slings, webbing slings and round slings which you can download for free, you will find them here.
