High-Performance Excavator Tunnel Arm for Urban Tunneling Short Arm Excavator Compact Excavator Boom Short Reach Arm
I. Advantages of Excavator Tunnel Arm/Short Arm
Optimized for Tight Spaces
Enhanced Maneuverability
Minimized Risk of Collisions
Increased Stability
Concentrated Force Application
Simplified Maintenance and Transport
Specialized Performance
Reduced Wear and Tear
Cost Efficiency
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 !!!
What are the advantages of modifying the tunnel arm?
1. The operating range adapts to the working conditions, and there is no need to worry about the boom hitting the beams of the tunnel or basement.
2. After the tunnel boom is modified, a larger breaker can be used due to the shortening of the boom. For example, the PC120 excavator can carry a 135 breaker after modification, and the PC200 excavator can use a 165 breaker, but it is necessary to increase the confluence of double pumps, and the impact force is doubled.
3. The tunnel boom can carry a bucket. The shorter the boom, the shorter the torque, the greater the force, and the larger the bucket can be.
4. When the bucket replaces the breaker, the stop valve prevents oil leakage.
5. The pipe joints are multi-layer welded to reduce the risk of oil leakage.
6. The cylinder guard is conducive to preventing the cylinder from being damaged in a collision.
7. Factory price, cheap price, support customization, ODM or OEM service.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|| 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.
Kaiping Zhonghe Machinery Co.,Ltd. established in 2018, it is a combination of manufacturing and trading, specializing in customizing different kinds of excavator boom arms and attachments. We are located in cuishanhu New District. Kaiping cityJiangmen City. Guangdong Province, China. We boast a 21000m3 steel structure workshop with a large number of high precision processing equipment and a strong and cohesive team of over 100 experienced technical staff. 50 welding workers with over 7 years experience. 30 senior designers, and a high-tech R&D team(10+ years on customization.100+technical patents), strict production system(6+ years quality control and cost control) and warm-hearted service team. Our annual output of various types of excavator boom arms can reach up to 800 sets.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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
