sany hydraulic rotary drilling rig sr220c/ sr150c with gost certificate sany sr220c

 Features of  sany hydraulic rotary drilling rig sr220c/ sr150c with gost certificate sany sr220c

1.Operating weight 45000kg 

2.Max.drill diameter 1500mm 
3.Max.drill depth: 55m

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.

Parameters of  sany hydraulic rotary drilling rig sr220c/ sr150c with gost certificate sany sr220c