What Is a Lifting Strap?
A lifting strap, commonly known as a round sling, is a flexible belt device used for lifting and carrying heavy loads. Made from softer materials than other types of slings, such as wire ropes, lifting straps offer ease of squeezing and handling during lifting operations.
These straps are often utilized for suspending heavy equipment, capitalizing on their flexibility for safe handling. Generally used with shackles, lifting straps can also be wrapped directly around equipment for lifting tasks.
Uses of Lifting Straps
Lifting straps are primarily employed for securely wrapping and lifting loads, especially in applications like hoists and cranes. They are adaptable for various lifting methods, including chock, basket, and straight slinging. Due to their material composition, lifting straps are less likely to cause damage to the load compared to wire ropes or chains. Their lightweight and compact nature makes them easy to transport and use for various applications, including under-floor drainage systems requiring slope adjustment.
Principle of Lifting Straps
Unlike belt slings, the maximum load capacity of a lifting strap is indicated by color coding according to industry standards, rather than by the width of the strap. When employing basket-slinging methods, it is important to note that the color coding and maximum load capacity may not correspond directly. It’s essential to verify the specific load capacity based on the sling’s length and color with the manufacturer.
Additionally, when lifting angular or sharp objects, or in situations prone to slippage, concentrated stress can weaken the lifting strap. Using protective measures such as corner pads or fabrics is recommended to maintain the strap’s integrity. Qualified personnel with the appropriate licensing should conduct lifting operations, adhering to local standards and regulations.
Lifting straps are often made from durable polyester yarn bundles covered in a nylon surface cloth, offering greater strength than standard polyester materials.