Suppliers with verified business licenses
Audited Supplier HFU-4A Full hydraulic underground drilling rig
The full hydraulic underground drilling rig HFU-4A is applied to the following fields: coal, metallurgy, geology and engineering, etc. It is used in the large-diameter gas drainage and the water injection hole of mine, tunnel and coal mine. It is also used in the large-diameter horizontal drilling surface engineering.
Main Feature:
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.
| Items | Unit | Data | Remark | |||||
| Rated rotate torque | N.m | 1440 | When 490r/min | |||||
| Rotate speed | r/min | 0-489-876 | ||||||
| 0-671-1200 | ||||||||
| Lifting capacity | kN | 98 | ||||||
| Feeding capacity | kN | 50 | ||||||
| Electromotor rated power | kw | 75 | Y280S-4-35B | |||||
| Electromotor rated RPM | r/min | 1478 | ||||||
| Feeding stroke | mm | 1800 | ||||||
| Rotator rising speed | Working | mm/s | 31.4 | |||||
| Max. | mm/s | 88 | ||||||
| Rotator Declining speed | Working | mm/s | 61.58 | |||||
| Max. | mm/s | 172.4 | ||||||
| Hydraulic pump | Main pump ERR100B | Rated pressure | MPa | 28 | ||||
| Max. displacement | L/min | 148 | ||||||
| Mid pump A10VO18 | Rated pressure | MPa | 28 | |||||
| Max. displacement | L/min | 26.64 | ||||||
| Rear pump A10VO10 | Rated pressure | MPa | 28 | |||||
| Max. displacement | L/min | 14.8 | ||||||
| Wireline winch lifting capacity(single wire) | t | 0.8 | ||||||
| Wireline winch Speed (min) | m/min | 91 | Wireline Dia. | Mm | 6 | |||
| Wireline winch Speed (max) | 240 | |||||||
| Mud pump max displacement | L/min | 160 | When 2.5MPa | |||||
| Mud pump max pressure | MPa | 10 | When 44L/min | |||||
| Mast inclined angle | ° | 0-150 | Continually adjustable | |||||
| Drill Rod and drill capacity | mm | Φ55.5×1500 BQ | 500m | |||||
| mm | Φ69.9×1500 NQ | 400m | ||||||
| mm | Φ88.9×1500 HQ | 250m | ||||||
| mm | Φ114.3×1500 PQ | 150m | ||||||
| Dimensions of main machine | mm | (LxWxH) | 3730x1200x1850 | |||||
| Total weight of main machine, power cabinet and power station | KG | 3500 | ||||||
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.
Suppliers with verified business licenses
Audited Supplier 
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