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● 5-level anti-vibration technology absorbs drilling vibrational frequency all- directionally to guarantee high stability;
● The special lubricating system makes sure that it can work in high-temperature environment. Rotary drive is available in three drilling modes-standard, low speed and big torque or high speed and small torque; spin-off is optional;
● The removable key of rotary drive and symmetry structure design double its service life;
● The main winch has highlights of touch-bottom protection, priority control and fast line speed;
● Crowd cylinder has two operation modes---normal lifting and fast lifting to improve push efficiency;
● Mast features automatic erecting, lying and vertical adjustment to ensure the accuracy requirements in construction;
● Balance control system of the whole machine is available.
