1. Tilt protection design for motor air Inlet avoids liquid or debris falling into the inside of the motor.
2. Over loaded protection: When drilling abnormal or improper operation caused motor overload, the protection function will automat-ically shut off the motor, prevent damage of the motor.
3. Magnetic adhesion protection: Magnetic failure occurs, shut down motor automatically, in order to protect the safety of personnel and equipment.
4. Motor soft start: reduce the impact on motor start and prolong the service life of the motor.
8. Outlet: humanized design, change the direction of outlet, make motor exhaust air to avoid personnel position, improve drilling comfort.
9. Guide lubrication system: guide internal storage design, which can make the guide parts has been in the lubrication state, prolong the service life of guide rail.