Heavy Excavator Short Arm Tunnel Excavation Equipment High-Quality Tunnel Boom Arm Tunnel Boom Attachment for Excavators
I. Advantages of Excavator Tunnel Arm/Short Arm
Benefits of Excavator Tunnel Arm/Short Arm:
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 |
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Working scene of tunnel arm
Special design----meet customer needs !!!
Why Consider Modifying the Tunnel Arm?
1.Adjustments to the tunnel arm’s operating range make it suitable for various job sites, reducing the risk of the boom hitting tunnel or basement beams.
2. After modifications, larger breakers can be employed; for instance, a PC120 can utilize a 135 breaker, while a PC200 can handle a 165 breaker, requiring enhanced double pump confluence to double the impact force.
3. A shorter tunnel boom allows for greater force, enabling it to support larger buckets effectively due to reduced torque.
4. The inclusion of a stop valve prevents hydraulic oil leakage when switching from a breaker to a bucket.
5. Pipe joints are constructed with multi-layer welding to minimize the risk of leaks.
6. The cylinder guard is designed to prevent damage in the event of a collision.
7. Our services are available at factory prices, offering customization options like ODM and OEM services.
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|| Excavator Tunnel Arms Suitable For Application
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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:
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About Zhonghe Machinery Company Profile:
Kaiping Zhonghe Machinery Manufacturing Co., Ltd.
1. Company Establishment: Kaiping Zhonghe Machinery Co., Ltd. was founded in 2018.
2. Focus Area: We are an enterprise dedicated to manufacturing and trading customized excavator booms and accessories.
3. Location Details: Our facility is situated in Cuishan Lake New District, Kaiping City, Jiangmen, Guangdong Province, China.
4. Workshop Specifications: We operate a 21,000 m³ steel structure workshop designed for efficiency.
5. Machinery Quality: Our workshop is equipped with cutting-edge high-precision processing tools.
6. Technician Team: We have a team of over 100 technicians, including:
7. R&D Expertise: Our R&D team has over 10 years of experience and has secured more than 100 technical patents.
8. Production Process: We implement a rigorous production system focused on quality and cost management over 6 years.
9. Annual Production: Our capacity allows for the production of up to 800 sets of various excavator booms each year.
10. Customer Relations: We prioritize quality and customer satisfaction, fostering cooperation with clients worldwide.
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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.
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Packaging & Shipping
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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
