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Rotary drilling rig / piling - 21 141 mm | SR220C
The SR Series Rotary Drilling Rig has 5-level anti-vibration technology which absorbs drilling vibrational frequency all-directionally. This guarantees a high stability. It can operate in a high temperature environment due to the special lubricating system. There are three drilling modes for the rotary drive including standard, low speed and big torque or small torque and high speed with optional spin-off. Its service life is doubled by the removable key of rotary drive and symmetry structure design.The highlights of the main winch are its fast line speed, priority control and touch-bottom protection. The two operation modes of the crowd cylinder are normal lifting and fast lifting in order to enhance the push efficiency. The mast includes automatic erection,vertical adjustment and lying, to meet accuracy needs in construction. A balance control system for the whole machine can be supplied.