Excavator Thumb Buckets Hydraulic Grab Bucket Manufacturer

Unlike a standard thumb attachment that mounts separately to the excavator arm, they combine a standard digging bucket with an integrated hydraulic thumb moving on a single axis, essentially turning the bucket into a heavy-duty claw. It allows operators to seamlessly switch between bulk digging and high-precision material handling (grabbing, sorting, and loading) without changing attachments.

Heavy Duty Excavator Grab Bucket with Serrated Teeth for Rock & Log Handling

It is highly popular among contractors for:

Demolition sorting (separating concrete, rebar, and wood).

Landscaping and forestry (moving logs, large rocks, and brush).

Waste management and scrap handling.

Excavator Thumb Bucket Application

Features
Integrated Hydraulic Cylinder Design: The hydraulic cylinder is neatly built into the back of the upper moving jaw (the thumb), providing powerful clamping force while keeping the cylinder relatively protected from falling debris during operation.

Interlocking Serrated Teeth: Both the side edges of the bucket and the inner curve of the thumb feature aggressive, flame-cut serrated teeth. This design provides excellent grip and prevents logs or smooth rocks from slipping out when clamped.

Reinforced Dual-Web Thumb Structure: The upper thumb arm utilizes a heavy-duty box-welded or dual-plate structure, ensuring maximum resistance against twisting and bending under high hydraulic pressure.

Heavy-Duty Wear Strips & Tooth Blocks: The bucket base is outfitted with standard bolt-on or weld-on excavator bucket teeth for easy replacement. The side cutters and bottom are reinforced to withstand highly abrasive environments.

Optimized Pin Geometry: Designed with standard pin-on ear plates that can be customized to match specific excavator brands (like Sany, Komatsu, CAT, or mini-excavators) for direct coupling or quick-hitch compatibility.