Applications:

GQ-15engineering drilling machine is newly designed special for large diameter pile hole drilling, can use forward-circulation and reverse circulation drilling methods mainly used in drilling large daimeter pile for building, skyscrper, dam harbor bridge etc. and drilling large diameter well.

Feature:

1. Big torque, lightweight and compact structure in compare with same kind machine.

2. Mast, top-drive head move down or up along with, strength and  rigidity.

3. Top-drive head has large inner diameter(182*182mm). Reverse-circulation drilling if equipped with necessary equipment as well as forward-circulation drilling

4. Strength, five forward speeds and on reverse speed, suitable for drilling a variety of rock, easy to handle accidents happend in hole.

5. Top-drive head is equipped with hand-powered chuck, square driving stem, larg stroke, drilling efficiently.

6. Hydraulic feed, big pull ad push force easy to make pressure and depression drilling.

7. Hydraulic retracting stroke is 1150mm, easy to lower and hoist drilling tools.

8. Walking device, easy to move and find accurat hole position.

9. Reasonable arrangement, easy to operate, smooth

10. Can be equipped with special derrick if user needs.

Technical Specification

1. Hole dia (mm): Φ 600- Φ 1500

2. Drilling capacity (m): 100-50

3. Top drive head speeds (r/min): forward: 13.5;  22.8;  40.19;   63.9;  98.5  reverse: 12.85

4. Max. torque(N.m): 22100

5. Top drive head inner hole(mm): 182*182

6. Top drive head max. pull force: 123kN

7. Top drive head max. push force: 98.3kN

8. Top drive stroke: 1000mm

9. Hoist lift capacity with singlerope: 48kN

10. Retracting distance: 790mm

11. Oil pump: CB32-2R gear oil pump

12. Power unit: electric motor: Y225S-4/37kW        diesel engine: 2135AG 50hp

13. Overal dimensions:  L3620*W1880*H2704mm

14. Drill body weight(including power):  5900kg