
Small Size Pipe Jacking Machine for Hard Rock Tunnelling Boring Machine. Hard Rock Specialization: Designed for sand, gravel, pebble, boulder, and rock with axis transmission and big driving torque. Wide Diameter Range: Available in diameters from 500mm to 4000mm to suit various project scales. Customized Design: Each machine is designed and customized according to specific project parameters and soil conditions. Efficient Crushing System: Features primary crushing by hobbing cutter and secondary crushing by crusher cone for high efficiency. Easy Maintenance Access: Allows direct access to the tunnel face for convenient maintenance and repair work. Computer Controlled Data: Data collection and control are managed by computer for precise operation. Long Distance Jacking: Capable of performing long-distance jacking operations effectively. Professional Support: Provides detailed geological analysis, on-site installation, debugging, and operator training.