Efficient Engineering drilling rig for pile hole drilling

GQ-15

1.APPLICATION

GQ-15 engineering 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 diameter pile for building, skyscraper, dam, harbor, bridge etc. and drilling large diameter well.

2.FEATURES

 -Big torque, lightweight and compact structure in compare with same kind machine.
 -Mast, top-drive head move down or up along with, strength and rigidity.

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

 -Strength, five forward speeds and one reverse speed, suitable for drilling a variety of rock, easy to handle accidents happened in hole.
 -Top-drive head is equipped with hand-powered chuck, square driving stem, large stroke, drilling efficiently.

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

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

 -Walking device, easy to move and find accurate hole position.

 -Reasonable arrangement, easy to operate, smooth.

 -Can be equipped with special derrick if user needs.

3.SPECIFICATION