An excavator hydraulic grab clamp bucket is an excavator attachment driven by a hydraulic system for grabbing and handling materials.

Structural Components

Hydraulic Cylinder: Serves as the actuator, providing power for the grab bucket to open and close.

Jaw (Bucket): This is the part that comes into direct contact with the material and is typically made of high-strength, wear-resistant steel. These grab buckets are categorized by shape as either a clamshell or orange-segment grab. The former consists of two complete bucket-shaped components, while the latter consists of three or more jaws.

Connecting columns, bucket lugs, and bucket lug sleeves: These connect the jaws to the excavator arm, ensuring the grab bucket is securely mounted on the excavator and transmitting force.

Operating Principle

A hydraulic grab bucket uses a hydraulic power source to supply pressurized oil to the hydraulic cylinder, driving the piston rod to extend and retract, thereby opening and closing the two combined buckets or multiple jaws, enabling the grabbing and unloading of bulk materials.

Classification

Based on rotational performance: Grab buckets can be divided into rotating and non-rotating types. Rotating grab buckets are equipped with a hydraulic rotation mechanism, enabling 360-degree rotation, facilitating the grabbing and handling of materials at various angles. Non-rotating grab buckets utilize the same hydraulic circuitry as the excavator bucket cylinder, eliminating the need for additional hydraulic valves and piping, resulting in a relatively simple structure.

Based on drive type: Hydraulic grab buckets are the primary type, while mechanical grab buckets are also available. However, hydraulic grab buckets are more widely used due to their powerful power and flexible operation.

Applications

Construction: Used for excavating foundation pits and deep pits, loading materials such as mud, sand, coal, and gravel, and for grabbing and handling construction waste during demolition operations.

Waste Handling: Used for grabbing and sorting materials such as scrap steel, iron, and garbage at recycling yards.

Port Operations: Suitable for loading and unloading ships, trains, and trucks, enabling the rapid transfer of cargo from one mode of transport to another.

Forestry and Agriculture: Used for grabbing and handling logs and branches in forestry; used for handling straw and grain in agriculture.

(1) Using Q345 manganese plate steel, high strength, wear resistance

(2) The pin shaft adopts 42 CrM alloy steel with built-in oil channel, high strength and good toughness

(3) Optional fixed type and hydraulic rotary type, a wider range of operation

(4) The cylinder is made of 40 Cr, imported NOK oil seal, long working life

(5) With large grasping force, not off the cylinder, large opening, simple installation characteristics.

(6) The assembly shaft is made of 42 Cr material with high frequency heat treatment, which is more durable with high wear resistance and reasonable structural design to avoid broken shaft breaking.

(7) The front end of the bucket adopts wear-resistant bucket teeth, which can achieve simple replacement

(8) Suitable for various models and brands of excavator, installation only need to link to the excavator arm, hydraulic pipeline link to the broken hammer pipeline can be, we randomly equipped with two-way foot valve and the first catheter, convenient for you to install.

(9) The bucket clip can be selected with hydraulic rotation and fixed type, adjustable 360 degree rotation, can meet the needs of special working conditions, flexible rotation, can grasp any position of the object, especially for the selection of wood, the material classification work efficiency is high.

(10) Reasonable structural design, strong bearing capacity

(11) Price advantage is obvious, low cost function, the real realization of a machine multi-energy

(12) Use the built-in valve to prevent the oil cylinder from falling naturally

(13) Large capacity cylinder design, the equipment grip force is more powerful

(14) The products of the same model are light in weight and large in opening gear width