Hydraulic Cylinder for Pipe Jacking Machine

The hydraulic deviation correction cylinder for pipe jacking machine is an essential component that ensures precision and stability during pipe jacking machine operations, especially in projects like micro tunnelling and large tunnel boring. Designed to meet strict construction requirements, this high-performance system allows for effective deviation correction under high pressure, maintaining alignment and improving construction efficiency.

In large-scale pipe jacking and microtunneling projects, where jacked pipes must travel long distances or navigate curved tunnels, Hydraulic Intermediate Jacking Cylinders (IJS) play a crucial role. Installed inside specially designed intermediate jacking stations (IJS), these cylinders provide additional thrust to overcome friction and ground resistance, ensuring smooth progress of the pipe jacking machine or micro tunnel boring machine (MTBM).

In pipe jacking operations, the hydraulic main thrust cylinder is the primary actuator of the jacking system, converting hydraulic pressure into the high axial loads needed to advance pipes through soil or rock. It delivers consistent and controllable jacking force—often in the range of hundreds to thousands of kilonewtons—by extending its piston rod against a thrust ring that transfers the load evenly around the pipe circumference. Mounted within the launch shaft’s jacking frame, these hydraulic cylinders push directly on the pipe string (or TBM shield), reacting against a reinforced thrust wall to ensure secure and precise forward movement. Their robust design and synchronized operation are essential for maintaining alignment, minimizing frictional resistance, and enabling continuous, long-distance pipe jacking without ground settlement or pipe misalignment.