SJ-400 Breaker is a self propelled diesel driven unit for hydraulic breaking in underground mining and tunnelling. The powerful liquid cooled Tier III 58KW engine provides clean and efficient operation. XYSJ-400 gives a maximum speed of 10 km/h In a horizontal tunnel. The hammer impact energy is 850J, impact power 6-12KW, beat per minute 400～800bpm. The FOPS and ROPS approved safety cabin provides superior visibility and comfortable compartment for the driver and the passenger. Cabin is designed for safe and easy entry and exit. Door openings are wide and handrails and non-slip steps are correctly positioned. Dashboard is easy and simple to use. New multifunctional display provides driving information (speed, RPM, temperatures etc.) and information can be recorded for analysis. Enclosed cabin provides noise level < 75 dB ensuring safe and comfort driving.Breaker layout allows easy access to all service points, all daily checks can be done from the ground level.Dimension (L-W-H)6945mmx1568mmx2705mmSpeed0-10KM/hHammer impact power6-12KWWeight (operating)8800kgEngine power58kWMin. Turning Radius Inner2540mmMin. Turning Radius Outside4285mm