No.1 Excavator tunnel arm for sale excavator short arm excavator shorten arm for cat hitachi komatsu sany

Excavator short arm excavator shorten arm excavator tunnel arm for digging tunnel digging at narrow places

Here is our catalog: 2024 Zhonghe Machinery--Product Catalog.pdf

Excavator short Arm with enlarged bucket / breaker:

• Enlarge Cylinders: Excavator tunnel arm is equiped with enlarged cylinders. Regarding to excavator tunnel arm's working condition, commonly excavator boom arm is used on breaking or digging in the tunnel. Digging the hard sand hard soil, there is huge requirement for the plates and cylinders. Enhanced the plates, thicker the plates and enlarge the cylinders, excavator short boom is strong enough and not easy cracking.
• For 30-36 ton excavator short reach arm, the thickness of plates can reach 25mm. The excavator tunnel arm is strong enough for digging hard sand hard soil and rocks.

Specification of one set of tunnel boom includes:

One big boom, one small arm, one stick cylinder, one bucket cylinder, 6 pins, one set of breaker pipeline, high-pressure hoses, valves 2 pcs, and other excavator accessories

We will produce one set of tunnel arm for excavator according to excavator model.

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