Product Details

DEFY DFU-300 underground diamond core drill rig

I. General Introduction

DFU-300 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:

Drillng depth		Φ55mm (2.17inch)	300m	Drill rod spec	Φ55×1500m (Φ2.17×59inch)
Drillng depth		Φ71mm (2.80inch)	200m	Drill rod spec	Φ71×1500mm (Φ2.80×59inch)
The range of spindle rotating speed			425-1280rpm	The max. rotating torque of spindle	795 N·m (586 lbf·ft)
The working pressure			25 Mpa(3626 psi)	Spindle stroke	1600mm (63 inch)
The max. Lifting force of drill head			62KN(13938 lbf)	The max. Feeding force of drill head	33KN (7418 lbf)
The sliding stroke of mast			495mm(19.5 inch)	The swing angle of mast bracket (left & right)	90°
The swing angle of arm (up and down)			100°	Power unit	YB225M-4 (dIICT4)
The swing angle of arm (up and down)			100°	explosion-proof electric motor	45KW(60HP)/ 1480rpm
Dimensions & Weight	Main machine (LWH)		2950x950x1850 mm	Main machine	1000kg
	Power unit (LWH)		1900x980x132mm	Power unit	1050kg
	Operation cabinet (LWH)		540x360x1080mm	Operation cabinet	140kg

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