Mini Excavator Tunnel Arm Short Arm Excavator Attachment Adjustable Tunnel Boom Arm Short Boom Excavator for Tunneling
I. Advantages of Excavator Tunnel Arm/Short Arm
Excavator Tunnel Arm/Short Arm Advantages:
Advantages of Zhonghe Machinery
1. Professional product design team, rich experience, strong design pertinence.
2. Automated processing equipment. Automatic cutting, double-sided floor-standing large boring machine, etc.
3. Industry standard welding process, carbon dioxide shielded welding, good weld crack resistance.
4. Strict and meticulous quality inspection, ultrasonic flaw detection
| excavator(ton) |
total length (mm) |
boom(mm) | arm(mm) |
max height (mm) |
max depth(mm) |
| 20-25T | 1300 | 3200 | 1900 | 4500 | 8500 |
| 30-36T | 4200 | 4200 | 1900 | 5000 | 10500 |
| 40-45T | 4500 | 4500 | 1900 | 5000 | 11000 |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Working scene of tunnel arm
Special design----meet customer needs !!!
Benefits of Modifying the Tunnel Arm:
1. Adjusting the tunnel arm’s operating range allows it to navigate various work environments without concern for hitting tunnel or basement beams.
2. With modifications, larger breakers can be employed; for example, a PC120 can utilize a 135 breaker, while a PC200 can use a 165 breaker, necessitating enhanced double pump confluence to double the impact force.
3. A shorter boom allows for a larger bucket capacity, as the reduction in torque increases lifting power.
4. The integration of a stop valve prevents hydraulic oil leaks during bucket operation.
5. Multi-layer welded pipe joints enhance reliability and minimize oil leak risks.
6. The cylinder guard is advantageous in protecting against collision damage.
7. We provide affordable factory pricing along with customization support, including ODM and OEM services.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|| Excavator Tunnel Arms Suitable For Application
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
What is the purpose of beveling the long arm/tunnel arm plate?
Most welding machines commonly used in the industry have a penetration depth of only 3mm. Since the thickness of our long arm plate is at least 8mm, without beveling, the welder would not be able to fully penetrate through the entire joint. This would result in weak welds, leading to issues such as weld cracking in the future.
We employ mechanical beveling, whereas other factories rely on manual beveling (as shown in the figure).
Large Floor-Standing Double-Sided Boring and Milling Lathe:
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
About Zhonghe Machinery Company Profile:
Kaiping Zhonghe Machinery Manufacturing Co., Ltd.
1. Company Launch: Kaiping Zhonghe Machinery Co., Ltd. was established in 2018.
2. Business Focus: We specialize in the manufacturing and trading of customized excavator booms and attachments.
3. Facility Location: Our operations are based in Cuishan Lake New District, Kaiping City, Jiangmen, Guangdong Province, China.
4. Workshop Area: We operate a 21,000 m³ steel structure workshop dedicated to production.
5. Equipment Quality: Our facility is equipped with high-precision processing equipment.
6. Workforce Details: Our skilled team includes over 100 technicians, featuring:
7. R&D Focus: Our R&D team boasts over 10 years of customization expertise and more than 100 technical patents.
8. Production Standards: We adhere to a strict production system emphasizing quality and cost control, developed over 6 years.
9. Annual Output: We produce up to 800 sets of various types of excavator booms each year.
10. Client Relations: We value quality and customer satisfaction, inviting collaboration with clients worldwide.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
CE certification & Utility model patent certificates
Our products have been exported to over 60 countries, utilizing various transportation methods such as sea, land, and air freight. For packaging, we use either wooden crates or stretch film to secure the products. Before shipment, the goods are carefully packaged and then loaded into containers to ensure their safety during transit.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Packaging & Shipping
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
FAQ(Some frequently asked questions):
Q1: Are you a manufacturer?
A1: Zhonghe Machinery provides a wide variety of attachments for excavators. Such as long arms, demolition arms, telescopic arms, standard buckets, rock buckets, cleaning buckets, tilt buckets, etc. We know that the perfect combination of high-quality cast steel products and moderate prices is the key to success.
Q2: Why is it called a tunnel arm?
A2: Tunnel arms generally refer to working devices that operate in narrow spaces. Most of them operate in tunnels, so they are called tunnel arms. Each country has a different name, but in China we call it a tunnel arm.
Any information, pls contact Ada!!!!
Whatsapp: +86 15322105263
Wechat/Tel: 0086 15322105263
E-mail: abby@excvatorboomarm.com
