HFU-3A Underground Core Drilling Machine

Technical parameters------ water well/core drilling rig

I. General Introduction of drill rig for coal      

HFU-3 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 of drill rig for coal     

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 of drill rig for coal      

1. Drilling depth:  Φ55mm(2.17inch) drill rod       300m(984feet)

Φ71mm(2.80inch) drill rod              200m(656feet)

2. Drill rod spec.:  Φ55×1500mm(Φ2.17×59inch) drill rod

Φ71×1500mm(Φ2.80×59inch) drill rod

3. The range of spindle rotating speed: 425-1280rpm

4. The max. rotating torque of spindle: 795 N·m(586 lbf·ft)

5. The working pressure: 25 Mpa(3626 psi)

6. Spindle stroke: 1600mm(63 inch)

7. The max. Lifting force of drill head: 62KN(13938 lbf)

8. The max. Feeding force of drill head: 33KN(7418 lbf)

9. The sliding stroke of mast: 495mm(19.5 inch)

10. The swing angle of mast bracket (left & right): 90°

11. The swing angle of arm (up and down): 100°

12. Power unit: YB225M-4(dIICT4)explosion-proof   electric motor 45KW(60HP)/1480rpm

13. Dimensions:

Main machine (L*W*H): 2950×950×1850mm(116×37.4×72.8 inch) Power unit (L*W*H): 1900×980×132mm(74.8×38.6×5.2 inch) Operation cabinet (L*W*H): 540×360×1080mm(21.3×14.2×42.5 inch)

HF series water------well/core drilling rig

Innovation is the key to our success: During these years, we continually make new designs on our products to 

make them easier for clients to use.

Hydraulic chuck: It is designed to save the trouble from ball chuck.

Slide: It is designed to move the machine backward or forward when you need to lift/change the drill rod or adjust 

the drilling position.

Trailer: 2-wheel, 4-wheel, 6-wheel. It is designed to move the drilling rig with tractors or such pulling devices.

Truck mounted: Easy to move and operate, they are also with hydraulic systems.

Crawler: Self-propelled, able to clime, suitable for complex terrains.

Hydraulic system: Tower and support. It is designed to decrease labor cost; two men are more than enough 

to operate the drilling rig with hydraulic system.

Digital control: Multiple data display, easy controlling and monitoring, very convenient and efficient for 

geological study.

Production ability------ well/core drilling rig 

We have more than 50 sets of processing equipment to ensure the quality of our product, which has proved worthy by our client’s recognition. And these equipments ensure large production capacity and adequate stock. 

Package------ well/core drilling rig 

To protect drilling rigs during sea transportation, we give them proper packing.
HF130, HF80,HF150E,HF150,HF200,HF30: Wooden case
HF-3,HF-4,HFDX-6.HF-8,HFT200,HFT350B: Plastic woven bag
Spare parts: Wooden case or plastic woven bag
HFT-200, HFT-3: Nude, main machine in plastic woven bag.

Our products has been authorized and certified by TUV and ISO9001:2008. We guarantee the quality of the machines for one year after the trial run (excluding the wearing parts), but not exceeding 15 months from the date on which machines leave the factory. 

1,Are you trading company or manufacturer?

We are professional manufacturer, and our factory mainly produce water well drilling rig, core drilling rig, DTH drilling rig, piling rig, etc. Our products have been exported to more than 50 countries of Asia, South America, Africa, and get a good reputation in the world. 

2,Are your products qualified?

Yes, our products all have gained ISO certificate,and we have specialized quality inspection department for checking every machine before leaving our factory.  

3,How about your machine quality?

 All of our machines hold the  ISO, QC and TUV certificate, and each set of machine must pass a great number of strict testing in order to offer the best quality to our customers.

4,Do you have after service?

Yes, we have special service team which will offer you professional guidance. If you need, we can send our engineer to your worksite and provid the training for your staff.

5,What about the qaulity warranty? 

 We offer one-year quality warranty for machines' main body.

6,How long can you deliver the machine? 

 Generally, we can deliver the machine in 7 days.