Practical Durable 22ton Excavator Subway Boom , Wear Resistant Excavator Short Arm
22ton Excavator Short Boom Arm Hammer Subway and Tunnel Arm for ZX PC
Introduction of Excavator Short Boom Arm
Tunnel construction presents challenging conditions with confined workspaces, making standard excavator arms ineffective due to their inability to rotate. While compact excavators are often used as an alternative, their efficiency is limited. To address these constraints, we have developed a next-generation shortened arm specifically engineered for tunnel operations. This innovative design features a reduced length and enhanced maneuverability, allowing smooth rotation even in tight spaces—significantly improving productivity in demanding underground environments.
| Excavator Standard Arm Accessories | |||
| name | number | main material | warranty(day) |
| Boom | 1 | Q355B/Q690 | 180/360 |
| Arm | 1 | Q355B/Q690 | 180/360 |
| Lubriion pipe | 5 | 1 layer wire ring | 0 |
| Steel tube | 6 | 20#steel | 0 |
GOOD SERVICE:
1. Online support within 24 hours.
2. Appointment video technical support.
(Our engineers have focused on excavator boom and attachment over 10 years)
3. Long excavator boom shall be two/three jointed pcs to make it fittable into container to save shipping cost.
WARRANTY
1 year for long reach boom, 180 days for cylinder and linkage, 90 days for bucket.
6. Hydraulic grabs for excavators
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.









