T68 Horizontal Boring Machine T68 Horizontal Boring Machine is mainly used for drilling, boring, reaming and machining end plane. 1.2 Features of the electrical control circuit
the main motor with low speed, can be directly activated; but with high speed, the control line from the start to low speed, delay and then automatically switch to high speed to reduce the starting current.
when pressed down high speed. By the contactor KM6 and KM7 to achieve stator winding from the triangular connection into a double star connection. (2) the main motor can be reversed, jog and reverse brake.
(1) The main motor is a two-speed motor, which provides the main movement of the machine and the motive power of the feed. High and low speed conversion, by the spindle hole plate within the limit switch S control, S normal when connected to low speed,
