Thrust system suitable for 2.5 m dia. circular shaft allows launching from small diameter shaft Enough cutting torque of max. 34,300 Nm (for 500 mm machine) offers excellent crushing capability for gravel, boulder and rock stratum Large pinch valve and cutting additive injection system ofter excellent face stability utilizing pressurized mud system Independent drive system of excavation and muck removal and lubricant injecting system for full periphery allow long distance pipe jacking even with half-length pipes Color liquid crystal display and data look out offer centralized control of pipe jacking operation data Engine driven hydraulic unit minimizes space requirement on the ground.