CUTTING APPARATUS

摘要

Cutting apparatus (100) suitable for creating tunnels or subterranean roadways and the like comprising: at least one arm (121) pivotally mounted to the apparatus and adapted to pivot in an upward and downward direction; at least one arm actuator (122, 130) to actuate pivoting movement of the at least one arm (121); wherein the actuator (122) comprises: a drive motor unit (130) and a drive train (123) coupled to the drive motor unit,the drive motor unit and drive train being configured for selective operation in one of: a first operating mode in which a first pivoting velocity and first torque are transmitted to the at least one arm (121), or a second operating mode in which a second velocity and second torque are transmitted to the at least one arm (121), the first velocity being lower than the second velocity and the first torque being higher than the second torque.