CRANE GRAB
Common Crane Grab Types: Double-clamshell; Multi-clamshell; Mechanical; Remote-controlled; Clamp-type grab; Shear-type grab
Material: Manganese steel
Specifications: Customized to customer requirements as needed
Compatible Crane Types: Portal Cranes; Gantry Cranes; JIB Cranes; Single-Girder Cranes; Double-Girder Cranes, etc.
Scope of Application: Sand and gravel plants; Iron ore plants; Ports and terminals; Distillers’ grains plants; Scrap metal plants, etc.
Working Principles: Grab buckets are typically used as crane end effectors. Unlike hooks, slings, and other lifting accessories, they possess autonomous loading capabilities, enabling automatic grabbing and unloading without manual rigging.
Crane Grab Parts
The crane grabs typically consist of two or more movable jaw plates that open and close. During loading, the jaw plates close within the material pile, trapping the material within the grab’s holding space. During unloading, the jaw plates open while suspended above the material pile, allowing the material to scatter onto the pile. The opening and closing of the grab is generally controlled by the hoist mechanism’s wire rope.
The grab bucket is typically used as a crane’s end effector. Unlike lifting accessories such as hooks or slings, it possesses autonomous loading capabilities, enabling automatic grabbing and unloading without requiring manual lashing.
What Can We Supply
Common Crane Grab Types
Clamshell Crane Grab: Suitable for bulk materials such as coal, grain, fertilizer, sand, and gravel.
Orange Peel Crane Grab: Used for scrap steel, solid waste, and irregularly shaped materials.
Hydraulic Crane Grab: High precision and strong penetration capability, commonly used with tower cranes and excavators.
Mechanical Rope Grab (Double/Quad Rope Grab): Commonly used in ports for coal and ore handling.
Electric Motor Grab: Features built-in motor control for precise operation, suitable for fixed cranes.
Typical Applications
At ports and bulk cargo terminals, grab buckets are widely used for loading and unloading bulk materials such as sand, gravel, grain, coal, mineral powder, fertilizer, and aggregates. When paired with grab crane systems, they significantly enhance unloading efficiency and are suitable for continuous high-intensity operations.
Orange-peel grabs are suitable for scrap steel handling, furnace charging, and transporting various irregular heavy materials. They offer strong gripping force and excellent penetration performance in steel mills and scrap yards.
Shell grabs are commonly used in sand pits, gravel pits, quarries, and construction material handling. Their bucket structure is ideal for loading fine- and medium-grained bulk materials.
Choosing the right grab bucket type avoids downtime losses. We recommend:
Double-rope mechanical grab bucket: For dry coal/ore operations (low maintenance costs)
Hydraulic grab bucket: Essential for wet/garbage environments (IP68 sealing, 30% increase in circulation efficiency)
Clamping grab bucket: For handling irregular scrap steel (zero material spillage during lifting)
→ Need selection assistance? Contact us and get a free compatibility analysis.
How to Choose A Suitable for Your Crane Lifting Project?
A complete grab selection requires considering the following two dimensions:
- determine the shape: Based on the main types of materials you need to handle, decide whether to choose a clamshell or multi-lobed grab.
- select the drive: Based on your crane configuration (does it have a hydraulic power source? Is it single-rope or double-rope?), your requirements for grabbing force and control precision, and your operation and maintenance budget, choose a hydraulic or mechanical drive.
Common combination example: A double-drum gantry crane used for loading and unloading coal (bulk materials) is most often equipped with a clamshell mechanical grab (double-rope grab).
For precise selection, please provide your material characteristics, crane model, and operational requirements, and we will provide you with professional advice.
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15036167067
0086 371 65056158
0086 15036167067
0086 15036167067
karenwu7067
No. 127 Zidong Road, Guancheng District, Zhengzhou City, Henan Province, China, 450000
