Stronger High-effective Excavator Tunnel boom Excavator shortening boom Long reach excavator reach long arm long stick excavator for sale long reach excavator for sale

click here to have our catalog:Zhonghe Machinery Catalog-Contact Sales Manager Aria directly

The tunnel arm is a non-standard boom and arm for excavators, which belongs to the scope of modification. The original boom&arm have a large working space. Due to the narrow space in the tunnel, the original ones cannot be flexibly operated and loaded in the tunnel, which greatly affects the construction efficiency and delays the project. The tunnel boom is a compact version for tunnel crushing and loading, which is customized according to the tunnel construction environment. By shortening the size, the overall structure design is more suitable.

Application area:digging tunnel, subway, digging at narrow place, etc

1. Work flexibly in narrow space
2. Fit large-scale crushing hammer
3. Stick/arm cylinder placed below for protection
4. Protection cover for bucket cylinder 

The advantages of our tunnel boom which excel other peers

1. Centralized lubrication system
2. The back bushing of the arm is wrapped by the whole board to avoid falling off
3. Multi-layer reinforcing rib plate at the stress place, more firm, integrated molding
4. Hydraulic pipelines section design, convenient for later maintenance
5. Graphite alloy copper sleeve
6. The boom seat sleeve adopts all in one molding process
7. three layers with four passes welding
8. Seamless precision steel pipe
9. The box has built-in transverse and vertical reinforcement ribs to improve its tensile strength
10. Adopt 90 degree elbow joint to avoid hose bending and increase it service life
11. Comparing with the same length pile driving arm, ours can pile higher.

The Material we use---Ensure premium products

Our Cutting Edge Machine---increase accuracy 

Large double-sided floor boring machine---more accurate
CNC plasma cutting machine---lessen deformation
Automatic edge milling machine---enhance welding bead
Environmentally friendly spray booth

Qulaity control---ensure high-quality products

Post-welding Testing
Accuracy Testing
Weld bead testing
Testing before send out goods
Operation Testing

The first system is the technical design drawing review mechanism
The second system is the semi-finished product review mechanism,(each process has a detection testing for the previous process)

The third system is the finished product testing.
(Before painting, the overall inspection is carried out to check whether the design size matches the welding size, and whether the installation size meets the design requirement.)

To sum up, every single ZHONGHE product has been passed the above three-stage inspection system to ensure that is qualified before shipping.

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.

welcome to contact~ Whatsapp: 0086 13822325403

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Please feel free to contact Aria directly!
 

click here: Whatsapp/Wechat:+86 13822325403
 

Email:excavatorlongarm@gmail.com