A hand chain hoist, as the name suggests is a manual type of device that is used to hoist heavy weight objects. The equipment is also known by other names such as manual chain block, block and tackle, chain block and hand chain hoist.
A hand chain hoist is the most common technology used nowadays to hoist heavy objects by using your hand on a chain. There is a suspension hook at the top from where the hoist can be suspended on a suitable anchor point. Some of the more secure options include Jib crane or a mobile gantry system. A simpler version is a heavy eye bolt that is fitted to the structure and then hung from a beam. However you need to make sure that the structure is capable of holding the weight.
After the manual chain is installed properly, the load can be fitted to the bottom of the hook. Once the load is fitted securely, the worker can begin to pull the chain to lift the load. However the pulling should be done gradually in the beginning so that there are no jerks. Normally the chain rotates around 2 gears in the housing. This increases the strength of the chain manifold to lift the load. Normally all hand chain hoists have a brake system so that the load can also be hold securely in one place. Another safety feature is the overload safety mechanism that gives a warning in case of excess load.
There are several varieties of falls of chain available and all of them operate in a similar fashion. The chain can lift heavier loads if it has more falls. However they will be slower when they are in operation because of they have to be pulled through more number of gears. The chains pull faster if there are lower falls.
The hand chain hoists are available in different types of designs, like the Myte hoist, with different lifting capacities. The integrated trolleys can fit perfectly in the steel beam. Some of them also have some additional electric components for better versatility. Some of them also have chain buckets so that extra amount of chain can be put out of the way to prevent any damage to equipment and accidents to people.
This equipment is cost effective and it can be used to lift and move heavy loads will good amount of precision. They are suitable in environments where is little or no electricity. The equipment can be used in different places like the workshop, industrial areas and factories.
There are some safety guidelines that you can follow. Before operating the equipment, you should look for any kind of defects. The limit for loading maximum load should never be exceeded. Ensure that only authorized and certified people use the hand chain hoist. The chain should be pulled smoothly and gradually without any jerks. The slinging technique should be perfect. The load should be fitted directly under the top hook and the center of gravity should be perfect.