70" Hydraulic Thumb, 20 ton – 30 ton Excavator

The 70-inch Hydraulic Thumb is engineered for secure material handling on large-scale excavation, demolition, and recycling jobs. Built for 20–30 ton class excavators, this heavy-duty attachment enhances grip when working with scrap, logs, debris, and irregular loads.

Key Specifications

• Length: 70"
• Width: 32"
• Weight: 1100 lbs
• Construction: T1 and AR400 steel
• Teeth: 4 hardened replaceable pins (standard)
• Mounting: Welds directly to excavator boom
• Includes: Hydraulic cylinder and hoses

Important Notice

This thumb does not include a pressure relief valve. A pressure relief valve must be installed on the thumb cylinder prior to operation to prevent hydraulic damage and ensure safe function.

Applications

Ideal for demolition, scrap handling, tree processing, and landfill operations where precise control of bulky or irregular materials is required. The wide profile and dual-teeth design provide maximum surface contact and retention during lifting and loading.

Durability

Built with high-strength T1 structural steel and AR400-reinforced wear zones to withstand impact and abrasion. Designed for long-term performance in high-cycle, heavy-load environments.

Compatibility

Fits 20–30 ton class excavators with compatible boom geometry. Requires welding to the existing bucket mount point — professional installation recommended. Compatible with standard hydraulic systems delivering required flow and pressure.