DFU-400 small underground coal mine drilling rig

I. General Introduction

DFU-400 hydraulic underground drill rig is mainly applied in the fields of coal, geology, metallurgy and 

engineering. 

It is used for drilling large dia. gas suction hole in mines, gallery as well as coal mine, water injection hole, 

and big dia. horizontal hole. It can meet the big dia. roller drilling, hard tungsten-carbide drilling and 

percussive-rotary drilling.

II. Main Features

1. It is separate in structure, small in size, light in weight, flexible in movement and convenient in operation.

2. The hydraulic pump is driven by explosion-proof electric motor through operating system, 

then the hydraulic pump enforces hydraulic motor to make drill head rotate, and at the same time, the 

movement of drill head is realized by oil cylinder & chain double speed mechanism.

3. Hydraulic chuck can satisfy the function of shackles and power-off protection.

4. The sliding and extending & retracting function of the mast makes it convenient for the bottom of mast to

 touches the ground or platform, thus the drill rig will be more stable.

5. The swinging arm and mast can do luffing movement, which satisfy the request of multi-angle drilling.

6. The range of spindle rotating speed is wide and the torque is large.

Ⅲ. Main Technical Specifications:

IV: DEFY Company:The Proven Piling machine Choice For Your Project 

When it comes to drilling technology, there are many options to choose from. With nearly 20 years of designing and building piling and drilling equipment, the experienced staff at Zhengzhou DEFY can help make your decision easier. We offer different types piling machine to fit a wide array of applications, each custom manufactured to fit your specific requirements.

V:Service

Zhengzhou DEFY is proud to offer support through the entire process, including engineering, manufacturing, installation and commissioning.
In addition, we provide drilling life-cycle services to our customers, including spare parts, technical support, and professional rig training.
We are committed to our word , we are a company with a work schedule of 24 x 7 x 365 . We are where, when and how the customer needs us.

VI: Contact Info

Miss Anne Bai

Skype:defy08

Whatsapp:86-15136212564