Gold Member Since 2012
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Zhengzhou Hanfa Prospecting Machinery Co., Ltd.

Intelligent Core Drilling Rig, Diamond Core Drilling Rig, Alloy Core Drilling Rig manufacturer / supplier in China, offering Multi-Functional Diamond Engineering Drilling Machine (HF-44A), Core Drilling Rig Machinery, Portable Core Drilling Rig, Hfc1200L Full Hydraulic Core Drilling Machine with New Propulsion Mechanism and so on.

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Supplier Homepage Product Core Drilling Rig Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

FOB Price: US $15,875-30,315 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $15,875-30,315/ Piece
Get Latest Price
Port: Qingdao, China
Production Capacity: 50sets /Month
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram
Basic Info
  • Model NO.: HF-44A
  • Type: Core Drilling Rig
  • Nq: 1100m
  • Bw: 1250m
  • Hw: 660m
  • Usage: Coal, Core Drilling Rig
  • Trademark: Hanfa
  • Specification: CE
  • HS Code: 8430490000
  • Condition: New
  • Bq: 1400m
  • Hq: 750m
  • Nw: 1000m
  • Diesel Engine: 82kw
  • Power Type: Diesel
  • Transport Package: Standard Export Packing
  • Origin: Zhengzhou City, China
Product Description
Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

I.  General

HF-44A  Core  Drill,  a  new  type  of  product  with enhanced  capacity,  is  a  kind  of  hydraulic-driven, spindle, diamond-bit, small-diameter core drill with fairly powerful  drilling  force. It is mainly  suitable for exploration  of metal or non-metal solid mineral ore  bed.  It  is  widely  applied  in  core  drill  with diamond  bit  or  hard  tungsten-carbide-tipped   bit and diamond bit in the field of geology, metallurgy, coal mine, hydrological  and engineering  drilling. It can  also  be  used  in  the  fields  of  superficial-zone

petroleum  and  natural  gas  mining,  mine  workings  ventilation  and  water  discharge  tunnel  drilling  as  well  as foundation  pile  construction  in  large  diameter.  It  is  in  reasonable  structure,  light  weight,  powerful  capacity, multiuse, steady performance, high responsibility and high standardization and generalization.

Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

1)   Core Drilling


Drill Rod Varieties

Drill Rod Type

Drill Depth

Drill Rod Made in China

Planer in and out

dia43×6mm(1.69×0.24  inch)

1400 m (4592feet)

dia54×6 mm(2.13×0.24 inch)

1000 m (3280feet)

dia67×6 mm(2.64×0.24 inch)

830 m (2722feet)

Thickened Inner

dia50×5.5 mm(1.97×0.22 inch)

1300 m (4264feet)

dia60×6 mm(2.36×0.24 inch)

950 m (3116feet)



Extracting Core with


Wire Line


1400 m (4592feet)

dia71×5 mm(2.80×0.20 inch)

1000 m (3280feet)

dia89×5 mm(3.50×0.20 inch)

800 m (2624feet)


(Diamond Core Drill Manufacturer Association)


 Drill Rod

Thickened Inner


1250 m (4100feet)


1000 m (3280feet)


660 m (2165feet)

Extracting Core with


Wire Line


1400 m (4592feet)


1100 m (3608feet)


750 m (2460feet)

Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

2. Drilling Angel ~0 to 360°

3. Power Engine







1480 r/min

Diesel engine

Deutz F6L 912


1500 r/min

4. Rotator

Type: Feeding with double oil cylinders hydraulic pressure, rotating mechanically. Spindle I.D~93   mm (3.66 inch)

Speed of spindle:

Speed of Power eng. (r/min)

1480 (for core drilling)

Positive Low Speed (r/min)

83, 152, 217, 316

Positive High Speed (r/min)

254, 468, 667, 970

Negative Speed (r/min)

67, 206

Max. torque of spindle~3.2  KN·m (2358 lbf·ft)

Spindle stroke~600   mm (23.62 inch)

Max. lifting force of spindle ~120  KN (26976 lbf)

Max. thrust of spindle~90   KN (20232 lbf)

Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

5. Hoist 

Form planetary gearing

Wire rope dia~17.5 mm(0.69 inch) or 18.5 mm(0.73 inch)

Drum capacity for rope(170 kg/mm2  equivalent to 241839 lb/inch2) ~ (17.5mm steel wire rope)    110m(360.8 feet)

(18.5mm steel wire rope)     90m(295.2 feet) Max. lifting force (single rope)~45 KN (10116 lbf)

Lifting speed of the wire rope

Power eng speed 1000r/min 0.47; 0.86; 1.22; 1.78 m/s (1.54; 2.82; 4.00; 5.84 feet/s) Power eng speed 1500r/min     0.70; 1.29; 1.84; 2.68 m/s (2.30; 4.23; 5.90; 8.79 feet/s) Power eng speed 1700r/min       0.805; 1.485; 2.12; 3.08 m/s (2.64; 4.87; 6.95; 10.10 feet/s) 

6. Clutch

Form: Dry single chip friction clutch

7. Gearbox

Form: sliding gearbox (4 speeds are positive and 1 is negative).

Multi-Functional Diamond Engineering Drilling Machine (HF-44A)

8. Oil Pump

Form: Single Gear Pump

Displacement        ~32+12  L/min (8.5+3.2 US Gallons/min)

Working pressure    ~0 to 8  MPa (0~1160 psi)

Max. pressure    ~12  MPa (1740 psi)

9. Water Brake

Working speed (r/min) ~700-800

Single rope compensational speed~3--8  m/s (9.84--26.2 feet/s)

Single rope compensational load~45  KN (10116 lbf)

10. Drill Frame

Form sliding skids type (with sliding base)

Drill backward stroke   ~460  mm (18.11 inch)

11. Dimensions (L×W×H) ~3030×1100×1890   mm (119.3×43.3×74.4 inch)

12. Weight of drill (without power unit) ~about 2150 kg(4741 lb)

13. Max. weight of dischargeable apparatus ~300 kg (662 lb)

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