Open Tunnel Boring Machine Torque Cylinder

Specifications of Open Tunnel Boring Machine Torque Cylinder

The torque cylinder of the open tunnel boring machine is essential for the machine’s propulsion and tunnel excavation. Located at the rear, it connects to the cutterhead through a series of gears and linkages. The torque cylinder also aids in steering the machine, activated by pressurized hydraulic fluid. The cylinder piston extends and rotates the cutterhead. Operating in hard rock conditions, the torque cylinder faces a harsh tunnel environment, needing to endure significant dust, vibration, and impact.

Functions of Open TBM Torque Cylinders

The primary function of an open TBM torque cylinder is to rotate the TBM’s cutterhead. Additionally, it performs several other significant functions, such as:

• Steering the TBM: The torque cylinders enable steering by applying more torque to one side of the cutterhead, causing it to rotate slightly in the desired direction.
• Maintaining the TBM’s thrust: By pushing against the tunnel wall, the torque cylinders help maintain the TBM’s thrust, preventing it from sliding backward into the tunnel.
• Protecting the TBM from damage: The torque cylinders absorb shocks and vibrations from the cutterhead, helping to protect the TBM from damage.

Design Considerations for Open TBM Torque Cylinders

Open TBM torque cylinders are engineered to endure extremely harsh operating conditions. They must withstand high pressures, heavy loads, and abrasive rock or soil.

Key factors to consider when designing an open TBM torque cylinder include:

• Bore size and stroke length: These must be selected according to the required torque and rotational speed of the cutterhead.
• Operating pressure: The torque cylinder should be designed for the necessary operating pressure.
• Materials of construction: Strong, durable materials are essential for withstanding harsh operating conditions.
• Sealing system: A reliable sealing system is crucial to prevent hydraulic oil leakage.

Tunnel Boring Machine Hydraulic Cylinders Manufacturer

GBC is the Australian sales agent for Ever-power Group, specializing in high-quality hydraulic solutions for various applications, including tunnel boring machines. Our commitment to excellence is evident in our Open Tunnel Boring Machine Torque Cylinder, which is designed to provide reliable and efficient performance in demanding environments. We ensure that our products meet the highest standards of quality and durability, making us a trusted choice among industry professionals.

In addition to our standard hydraulic cylinders, we offer customized solutions tailored to meet specific customer requirements. We can manufacture non-standard cylinders with a diameter of D360MM and a stroke length of L6000MM based on your unique specifications. Our team is dedicated to working closely with clients to create bespoke designs that perfectly fit their operational needs. We encourage all customers to bring their designs or samples for customized solutions, ensuring that we deliver exactly what you need for your projects.