... 90/2.3A, 100/3.1, 110/2.8, 120/3.0 and 130/3.2.Equipped ... Pneumatic Roof Bolter, higher output power, high rotate speed and drilling power; convenient operation and maintenance to the ... comfortable working condition, etc. MQT-70/1.8,MQT-85/2.2,MQT-90/2.3A, ... MQT-100/3.1,MQT-110/2.8,MQT-120/3.0 and MQT-130/3. ... OUTPUT POWER (kw)1.82.22.3IDLE ROTATE SPEED (r/min)900650650STALL TORQUE (N.m)≥160≥230≥ ...