A grab is an accessory used with bridge cranes for material handling. There are two types of grabs: clamshell grabs and shell grabs. Clamshell grabs are used to handle bulk materials, while shell grabs are used to handle individual items. Both types of grabs can be divided into three main types: mechanical, hydraulic, and electric motor.
Mechanical grabs
A mechanical grab is a mechanically operated grab. It is usually used to handle solid materials such as scrap metal, stone and concrete. The design of this grab is relatively simple and easy to maintain and repair. It is suitable for various industries such as construction, mining and waste management.
Electric hydraulic grab
An electro-hydraulic grab is a hydraulically operated single-jaw grab. It is commonly used to handle materials such as scrap metal, waste, and bulk cargo. Hydraulic grabs are known for their high performance and efficiency. They are suitable for various industries such as marine, ports, and demolition.
Electric grab
An electric grab is a single-jaw grab that is operated using an electric motor. It is commonly used to handle materials such as scrap metal, waste, and bulk cargo. Electric grabs are known for their high speed and accuracy. They are used in a variety of industries such as steel mills, shipyards, and power plants.
Mechanical grabs
A mechanical clamshell grab is a mechanically operated clamshell grab. It is commonly used to handle bulk materials such as coal, fertilizers, and grains. Mechanical clamshell grabs are known for their high productivity and efficiency. They are used in various industries such as agriculture, mining, and shipping.
Hydraulic clamshell grab
A hydraulic clamshell grab is a specialized grab commonly used in the marine industry. It is designed to handle heavy materials such as rock, concrete, and scrap metal. The hydraulic clamshell grab is equipped with a hydraulic system that allows it to open and close faster and more efficiently.
Electric grab
The electric clamshell grab is a more advanced version of the hydraulic clamshell grab. It features an electric motor that allows it to open and close more quickly and efficiently. The electric clamshell grab is ideal for handling heavy materials such as scrap metal, coal, and gravel.
In conclusion, choosing the right grab for your overhead crane will depend on the type of material you are handling and the industry you are in. Mechanical grapples are a cost-effective solution for handling bulk materials in the construction industry, while electric hydraulic and electric motor grapples are more advanced and better suited for handling materials in the shipping industry. Hydraulic clamshell and electric motor clamshell grabs are specialized grabs that are ideal for heavy-duty applications in the marine and construction industries. Be sure to choose the grapple that best meets your needs, and contact us if you have any questions or concerns.
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