Name: DFU-300 underground drilling machine for mining
Brand: DEFY
Availability: InStock

Product Details

Product Description

DFU-300 underground drilling machine for mining 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.

Drillng depth	300m with drill rod Φ55mm*1500 mm
Drillng depth	200m with drill rod Φ71mm*1500mm
The range of spindle rotating speed	425-1280 rpm
The max. rotating torque of spindle	795 N.m
The working pressure	25 Mpa
Spindle stroke	1600 mm
The max. lifting force of drill head	62 KN
The max. feeding force of drill head	33 KN
The sliding stroke of mast	495 mm
The swing angle of mast bracket (horizontal)	90 degree
The swing angle of arm (vertical)	100 degree
Power unit	YB225M-4
Explosion-proof electric motor	45 KW/1480 rpm
Dimensions
Main machine	29509501850 mm
Power unit	19009801320 mm
Operation cabinet	5403601080 mm
Weight
Main machine	1000 kg
Power unit	1050 kg
Operation cabinet	140 kg

Main Features of DFU-300 underground drilling machine for mining

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.

Certifications

Our Service

One year quality warranty.

Training: operation manual and DVD operation video, overseas installation is also available

Spare parts are available in our factory at cost price for former customers

24 hour on-line guidance for operation and maintenance

Your Assurance

We get BV certificate every year.

Here is the transaction history for the latest year. You can check it in detail at our homepage.

You can put trade assurance order online.

FAQ

1. What kind of projects you will work for?

Water well, Borehole, Exploration coring, Foundation Piling, Blast holes, Geothermal heat project or others?

2. Max drilling depth you want.

100m, 200m, 400m, 600m, or other depth.

3. The Min and Max borehole diameter you need.

Like Max 400mm, Min 75mm.

4. Geological condition of the working site if you know about it.

Soft ground like soil, mud, sand.

Hard ground like hard rocks .

Or mixed.

More details you provided, our engineer can suggest the most suitable model for you.

Our Company

Zhengzhou Defy Mechanical & Electrical Equipment CO., Ltd. locates in High-tech zone of Zhengzhou City, China. Our factory dedicates to manufacturing drilling rigs since 1970s, more than 40 years experience of production and development make our product quality rank in the leading position at home and abroad.

Our drilling rigs are widely applicable for water well, farm irrigation, geological prospecting, small pile foundation, geothermal air-conditioner and so on, capable and functional. Our professional engineers and sales team, offering technical support and useful advices whenever you need.

Please feel free to contact with us if you have any questions about our products.

Leo Cheng
leo(at)

+86 185 3008 1962 (cellphone/whatsapp)
+86 371 5581 9257 (TEL)
defy018 (skype)