Below-the-hook devices (also known as BTH devices) are lifting attachments that are used to connect a crane’s hook to the load.
Providing a critical link between the crane (or hoist) and the object being lifted, BTH devices work to secure, support, and balance loads safely during lifting. In doing so, they reduce the need for manual handling.
While below-the-hook devices are not part of the crane or hoist itself, they are a type of accessory which can make the lifting task safer, faster and more precise.
At Metreel, we like to educate you about various aspects of material handling on our blog.
So here is what else you need to know about below-the-hook devices, including the scenarios where using one can make sense.
Below-The-Hook Devices: An Overview
In essence, a below-the-hook device acts as an intermediary piece of lifting equipment that secures, balances and supports the load during lifting operations. The use of the applicable device makes the crane adaptable, which enables it to lift different shapes, sizes and materials.
BTH devices come in many forms, including:
- C-hooks
- Grabs, tongs & clamps
- Lifting beams/spreader beams
- Magnetic lifters
- Pallet or drum lifters
- Vacuum lifters
The best option will depend on the specifics of the lifting operation and should be decided by a competent person.
When To Use Below-The-Hook Devices?
As we’ve just established, BTH devices need to be used to provide additional support and security to a load during lifting operations. Specifically, this is when a direct connection between the crane hook and the load would be unsafe or inefficient.
Some example scenarios include:
- Loads with no lifting points
- Irregular or fragile items that need even pressure distribution
- Long or flexible objects that would bend or twist under sling tension
- Frequent, repetitive lifts where a dedicated attachment saves rigging time
- When precise positioning or rotation is required during installation
Furthermore, there can also be laws and regulations which dictate when a below-the-hook device needs to be used. Here in the UK, this includes LOLER and PUWER. Also, BS EN 13155 needs to be taken into account.
Discover Hoists, Balancers, Winches & More At Metreel
If you are here researching below-the-hook devices, then you may also be interested in our industrial lifting solutions here at Metreel. Alongside our material handling equipment, this includes key accessories such as hoists, balancers and winches.
Browse our website or download our brochure to explore our solutions.
For help or advice, please get in touch or give us a call on 0115 932 7010.