A. Powerful feeding mechanism and rotating system 

1. Rotating system driven by high power hydraulic motor provides strong torque reserve and reduces the sticking drilling probability.
2. Feeding mechanism driven by high power hydraulic motor can generate 20KN lifting power. Adjusting the pressure regulating valve on the control valve can get favorable driving power required by the working condition.
B. Adjustable boom 
Boom is adjustable. The angle of drilling hole and height of horizontal hole can be adjusted by controlling the stretch-out and draw-back of the hydro-cylinder.
C. Reliable Hydraulic Pump System 

1. Oil supplied by two independent gear pumps, reliable operation, strong adaptability, easy maintenance. 

2. Adopt gear transmission and soft connection, possessing compact structure and stable operation.
3. Adopt special hydraulic components. That improves the system’s stability and reliability. 
4. Install oil liquid cooling device, to eliminate the exothermic hydraulic oil’s influence to the system
D. Centralized Operating System 

1. Designed with advanced hydraulic system and functional gas supply system, all actions can be centralized 

controlled, easy to operate. 

2. Running the hydraulic operating valve can lift or swing the boom, and adjust the pitching, swing angle and forward or backward moving of drilling rig, and also level the crawler.

3. Running the pneumatic operating valve can open the oil pump, and realize the crawler drilling rig’s function of

 lifting, rotating and impacting, to ensure the high efficiency rock drilling.

1.This series machine are used in a wide variety of Quarry ,Highway , Water and electricity , Surface mine and deep hole joint pipe drill work on the building project etc.  

2.This series drilling rigs with air compressor,hammer together work ,to blasting horizontal hole ,vertical holes ,inclines holes

Established in 1970s, Zhengzhou Defy has growned into one leading drilling rig manufacturer in China, specilizing in drilling rig technology R&D, manufacturing, etc. 

Our portable borehole drill rigs are widely used for water well drilling, irrigation well drilling, geothermal hole drilling, mining blast hole drilling, construction pile work drilling, air-conditioner hole drilling, etc.

DEFY Brand drill rig machines have been widely exported to Chile, Russia, Australia, Malaysia, Kenya, Tansanzia, Zambia, South America, Peru, Zimbabwe, etc.

Miss Anne Bai

skype:defy08

whataspp:86-15136212564