Antiwear 20ton Excavator Short Boom Arm Hammer Subway and Tunnel Arm for
CAT320 ZX200-5A DX200-9C SY205C
Catalogue ZH excavator boom arm.pdf
Introduction of excavator tunnel boom
The tunnel arm is used for construction in narrow space. Due to the
small space of tunnel engineering and subway engineering, the
original large and small arms cannot operate normally. The tunnel
arm is also called shortened arm, which is shorter than the
original large and small arms. It can work flexibly in a narrow
space and the working radius is reduced. At the same time, in terms
of redesign, the tunnel arm is more suitable for large-scale
crushing hammer, and the middle arm oil cylinder is placed below to
protect the oil cylinder from crushed stones.
The excavator tunnel shortening arm, the tunnel special shortening
arm, and the special short arm after special modification according
to the working conditions of the tunnel, can be equipped with an
enlarged bucket.
The special arm for the tunnel is made of high-strength manganese
steel material, which can cope with the harsher crushing
environment.
The configuration of the tunnel short arm
| short boom | short arm |
| 4 high-pressure hoses | 5 butter pipes |
| Stick cylinder1 piece/2 pieces Optional | Bucket cylinder Optional |
Advangtages of ZHONGHE MACHINERY
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.
Recommended Excavator Attachments
1. Long reach excavator boom
2. Excavator telescopic boom
3. Demolition boom
4. Excavator rock bucket
5. Excavator tilting bucket
6. Hydraulic grabs for excavators
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