Chain blocks along with wire rope hoists provide versatile lifting solutions which are used in many settings including construction, factories, rigging, warehousing and more. A chain block is ideal for use on jib cranes and mobile lifting gantry systems.
A chain block may also be referred to as a manual chain hoist, hand chain hoist or block and tackle. They are manually activated devices to aid in lifting heavy loads.
Basically a chain block works by attaching a load, and subsequently pulling down on one of the chains, the chain runs over a gear to raise the load, this increases the mechanical work being carried out by the gear ratio inside the devices housing.
Chain blocks are available in various forms with differing lifting capacities; Some varieties of these chain blocks come with an integrated trolley for convenience, and there is also the popular 360 degree chain block which allows full rotation to enable the user to work in nearly all positions, even above the load.
Chain blocks have a brake system to allow the load to be held in a raised position, most also have an overload prevention system for extra safety sometimes this may be an optional extra; other extras available are chain buckets, which keep the excess chain tidy and out of the way.
A chain block provides a convenient and versatile method to lift heavy loads; they are quick to fit, portable and cost effective, they are extremely useful for finer, accurate control of the load. Chain blocks are frequently seen being utilized in many areas such as workshops, and anywhere that using an electric hoist isn’t suitable due to lack of power supply or because of hazardous environments.
Chain blocks are compact and therefore relatively portable and offer a great lifting solution for buildings with limited headroom and come in a diverse range with various load capabilities. We sell arrange of chain blocks as well as other types of lifting gear from leading manufacturers such as Gunnebo, Hacketts, Yale and more.
Each chain block is tested prior to dispatch and meets industry standards for operation and performance. Call us on 01384 78004 to enquire or place your order today
THE SAFE USE OF MANUAL CHAIN HOISTS, CHAIN BLOCKS
There are many important safety aspects to consider before using a manual chain hoist / chain block, here we have listed some basic do’s and don’ts.
- Use defective blocks, or accessories
- Stand under the load
- Replace chain with a longer length without consulting supplier
- Expose to chemicals, consult supplier
- Expose the chain block to the elements, steam or water spray
- Lift load over workers
- Lift persons
- Tip the load
- Exceed the WLL
- Drag or drop the chain block
- Inspect before use, checking for defects, and brake working
- Have chain block inspected regularly by qualified person and repaired if necessary
- Store and handle correctly
- Check bottom hook will reach lowest point without running the chain out fully
- Adopt safe slinging practices
- For top hook suspension use hooks with safety catches
- Check the block is safely rigged, and chains not twisted
- Check load is free to move, making sure area is clear
- Pull chain smoothly, never jerk
- Raise load just clear, then STOP, and check all aspects before continuing
- Place load directly in line with top hook, keeping centre of gravity where possible.