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Hitachi 135 Excavator Tunnel Arm Tunnel Boom Excavator Shorten Arm Shorten Boom

Excavator Tunnel Arm
June 06, 2025
Category Connection: Excavator Tunnel Arm
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Tags:
#Excavator Tunnel Boom #Excavator Short Arm #Digger Shor Boom
Brief: Discover how the Hitachi 135 Excavator Tunnel Arm works in this detailed demonstration. Learn about its shortened boom and arm design, ideal for tunneling and confined spaces, and see how it enhances efficiency by accommodating larger breakers. This walkthrough highlights the robust construction and operational benefits for mining and construction professionals.
Related Product Features:
  • Specifically designed as a shortened arm for tunneling and other confined work conditions.
  • Capable of carrying a larger model of breaker than standard arms, increasing work efficiency.
  • Front arm is filled with iron sand to hold the breaker more firmly and reduce rebound.
  • Bucket cylinder is strategically placed below to minimize damage during operation.
  • Suitable for heavy-duty 40-45 ton excavators with a load capacity for demanding mining and construction tasks.
  • Comes with a complete configuration including cylinders, pins, pipelines, hoses, valves, and connecting rod assembly.
  • Features a total length of 18000mm, boom length of 4500mm, and arm length of 1900mm for the 40-45T model.
  • Designed for maximum digging depth of 11000mm and maximum height of 5000mm.
FAQs:
  • What is a tunnel arm and what is it used for?
    A tunnel arm, also known as a shortened arm, is specifically designed for tunneling or other confined work conditions. It allows excavators to operate efficiently in tight spaces where standard arms cannot maneuver effectively.
  • How does the tunnel arm improve work efficiency?
    The tunnel arm can carry a larger model of breaker than standard arms, which increases work efficiency. Additionally, its design with iron sand filling in the front arm provides better stability and reduces rebound during operation.
  • What excavator models is this tunnel arm compatible with?
    This heavy-duty hydraulic excavator tunnel arm is designed for 40-45 ton excavators. The manufacturer provides custom quoting based on specific excavator models, with dimensions tailored to each weight class including 20-25T, 30-36T, and 40-45T models.
  • What components are included with the tunnel arm configuration?
    The complete tunnel arm configuration includes one middle arm cylinder, one bucket cylinder, six pins, one set of breaker hammer pipelines, six high-pressure hoses, two stop valves, and one set of connecting rod assembly.
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