| 摘要 |
PURPOSE: A plasma cutting apparatus which can easily cuts a small part of a narrow space by overlapping a ball screw and a ball screw case is provided to efficiently cut various material regardless of the kind of material. CONSTITUTION: A plasma cutting apparatus comprises an electric actuator(100), a controller(200) and a main body member(300). The electric actuator is composed of an electric motor part, a deceleration part, a ball screw case part, a ball screw part, a plasma cutting torch part and a guide fixing part. The electric motor part revolves at a clockwise direction or a counter clock-wise. The deceleration part transfers the torque of the electric motor part.
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