Home  >  Mining & Metallurgy Machinery  >  Mining Machinery  >  Mine Drilling Rig

MT-44A mineral exploration, 1.1500m deep ,sliding base., 2.hydraulic control, 3.Wireline Winch, 4.diamond/tungsten-carbide bit - details see: https://www.machineto.com/core-drilling-machine-for-mineral-exploration-mt-44a-1500m-deep-10313815

Hydraulic-drivenDT-44A mineralcore drilling rig

General

DT-44ACore Drilling rig, 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 solidmineral ore bed. It is widely applied incore 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 alsobe used in the fields of superficial-zone

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

Specification

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 withWire Line	dia55.5×4.73mm(2.19×0.19inch)	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)
DCDMA (Diamond Core Drill Manufacturer Association) made Drill Rod	Thickened Inner	BW	1250 m(4100feet)
		NW	1000 m(3280feet)
		HW	660 m (2165feet)
	Extracting Core withWire Line	BQ	1400 m (4592feet)
		NQ	1100 m (3608feet)
		HQ	750 m (2460feet)

2.Drilling Angel ~0 to 360°

3. Power Engine

Electromotor	Y225S~4	37KW(49.62HP)	1480 r/min
Diesel engine	Deutz F6L 912	82KW(110HP)	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)

5. Hoist

Form planetary gearingWire 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 speed1000r/min 0.47; 0.86; 1.22; 1.78 m/s (1.54; 2.82; 4.00; 5.84 feet/s)Power eng speed1500r/min 0.70; 1.29; 1.84; 2.68 m/s (2.30; 4.23; 5.90; 8.79 feet/s)Power eng speed1700r/min 0.805; 1.485; 2.12; 3.08 m/s (2.64; 4.87; 6.95; 10.10feet/s)

6. Clutch

Form: Dry single chip friction clutch

7. Gearbox

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

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)