High-Effective Excavator Tunnel Boom Excavator Tunnel Arm Excavator Short Arm with Bucket / Breaker For Cat Hitachi Komatsu

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

The excavator short arm is a non-standard boom and arm designed specifically for excavators, falling under the category of modifications. The original boom and arm offer a wide working range. However, in confined spaces like tunnels, basements, and narrow operation areas, their maneuverability and loading capacity are limited, significantly hindering construction efficiency and delaying projects. The tunnel boom, a compact version tailored for tunnel crushing and loading, addresses this challenge. It is customized to suit the specific tunnel construction environment. By reducing the size, the overall structural design becomes more suitable for these constrained spaces.

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

Enlarge Bucket, enlarge and thicken the oil cylinder, and the short boom can be installed with larger breaker.

On the same machine, tunnel arm can obtain greater lifting capacity than the standard arm, that a larger breaker can be used to improve work efficiency

Enlarge cylinders to avoid its damage by excessive vibration

Stop valves prevent oil leakage when replacing breaker by bucket.
Multi-layer welding of pipe connectors to reduce the risk of oil leakage

Any interest, welcome to contact Aria: whatsapp: 0086 13822325403

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--convenient for adding lubricant to excavator tunnel arm for sale

2. Multi-layer reinforcing rib plate at the stress place, more firm, integrated molding---ensure longer service-life
3. The back bushing of the arm is wrapped by the whole board to avoid falling off
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. Comparing with the same length pile driving arm, ours can pile higher.
11. Adopt 90 degree elbow joint to avoid hose bending and increase it service life

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

Please feel free to contact Aria directly!
click here: Whatsapp/Wechat:+86 13822325403
Email:excavatorlongarm@gmail.com

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.

Common model is excavator tunnel arm for ex60 zx135 zx200 pc240, excavator tunnel arm oil cylinder

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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

6 months for excavator short boom, 180 days for cylinder and linkage, 90 days for bucket.

The Peak Season is coming, welcome to contact Aria for any discount.

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