A grab bucket is a lifting device that relies on the opening and closing of two left and right combination buckets or multiple jaw plates to grab and unload materials. It is a pickup device underneath cranes for loading and unloading various goods.
There are various types of grab cranes, including gantry grab cranes and bridge grab cranes. According to the specific gravity of the grabbed material, various types of grabs are divided into light grabs, medium grabs, heavy grabs, and super heavy grabs.
According to the grab of the crane, it can be divided into single rope suspension grab, two rope grab, four rope grab, four rope grab type grab, electric motor grab, stainless steel grab, hydraulic multi flap grab, scissor grab buckets, log grabs, and electro-hydraulic grabs.
Before selecting the grab type, first confirm the working environment of the grab crane, the object to be grabbed, the cubic number of the object to be grabbed at one time, the specific gravity of the material, and the tonnage of the grab crane used with the grab. Then judge which type of grab bucket to use based on the information of the crane. After confirming the type of grab bucket, also confirm the opening direction of the grab bucket, which is perpendicular to the main girder of the crane or parallel to the main girder of the crane.
The single-rope suspension grab is used for only one hoisting drum, used on various common cranes, used to grab various loose materials, and is most suitable for launching operations.
The two-rope grab is mainly used with bridge cranes, port machinery, and winches. It is widely used in ports, power plants, wharves, and chemical industries to grab various loose accumulations, such as ore, coal, and slag. Car, unloading, feeding, and other operations.
The four-rope grab is mainly used in conjunction with the bridge and gantry cranes with two sets of lifting drums to grab various loose materials and perform operations such as loading, unloading, and transfer. According to the materials to be grabbed and the needs of use, it can be designed with teeth, parallel beams for underwater operations, etc.
The four-rope grab is mainly used for grabbing small-sized loose materials. The dustproof and waterproof performance is good, and the gap between the cutting edge plates is small. It is generally suitable for ports, docks, and cargo stations to grab loose materials such as coal, grain, and slag.
Electric motor grabs are mostly used for loading and unloading of loose granular materials such as ore, limestone, slag, mineral powder, coal, and coke. Cannot work in water. If you work outdoors, you need to add rainproof facilities, and you can’t work in flammable, explosive, acid, and alkali vapor environments.
The stainless steel grab bucket is specially designed for brewing, and is mainly used to grab and transport koji, sauce, sauce residue, etc.
The multi-lobe grab is suitable for efficient loading and unloading of scrap steel, iron bulk materials and garbage in various harsh environments. It is mainly used in ports, railways, metallurgy, mining, construction and other industries.
The scissor grab is clean and does not leak when grabbing materials. It is suitable for cleaning stock yards and cabins. When closing, it gradually increases with the closing process, and is mostly used on large bridge unloaders.
The log grab is a special long pole grab used to grab logs. The log grab is suitable for ports, forest farms, lumber yards, wood products factories, paper mills and other industries for loading, unloading, ship unloading, tying, Stacking, etc.
The electro-hydraulic multi-lobe grab is suitable for harsh environments, irregular and difficult materials. It is mainly used for loading and unloading irregular bulk cargo such as scrap iron, pig iron, stones, etc. It is suitable for steel mills, waste incineration treatment, ports, railway transfers and other occasions.
If you have any inquiry about grab buckets for cranes, please feel free to contact us.
