Down The Hole Drilling Rig, JDL-300 Core Drilling Equipment and Down The Hole Drill Equipment

JDL-300 Down The Hole Drilling Rig is widely used in the geological general investigation and exploration, road, railway, port, bridge, water conservancy, tunnel and tall building basic exploration, kinds of hole in concrete structure, river, levees, subgrade grouting hole drilling and direct grouting, civil wells and earth central air conditioner, and etc.

1. This drill has more positive speed grades and reasonable speed range, with bigger output torque at low speed which gives it an extensive use range, it is Suitable for alloy, diamond mud drilling and DTH hammer drilling as well.
2. It has 2 reverse inversion speed in order to deal with accident.
3. JDL-300 works with mechanical transmission and auxiliary hydraulic transmission which effectively reduce the power consumption, and also makes drilling cost lower.
4. JDL-300 uses long stroke multiple speed system, mechanical power head with stroke as 3400MM,to improve drilling efficiency, prevents accidents such as balling up and burning bits from happening.
5. JDL-300 adopts double oil pump, single pump works whilst drilling, double pump works whilst hoisting, which lower power loss and shorten auxiliary time.
6. It has highly advanced mechanical structure and reasonable layout which is convenient to repair and maintain.
7. Using the crawler chassis with support oil cylinder which has a stroke of 1.5m, it can be loaded automatically and moved easily.
8. Some interfaces are reserved to expand functions according to the technological requirements of different customers.

1.    Drilling diameter: Ø90-300mm.

2.    Drilling depth: (1) Ø76 drilling rod 300m,

                             (2) Ø89 drilling rod 260m,

                             (3)Ø102 drilling rod 150m.

3.    Drilling method: Top drive mechanical rotary hydraulic propulsion, Water circulation drilling or DTH percussive drilling.

4.    Diesel engine power/Rotate speed: 48Kw 2400r/min.

5.    Hydraulic unloading rod torque: 12468N.m.

6.    Feed strok: 3.4m.

7.    Feed thrust: 35kN.

8.    Feed tension: 80kN.

9.    Lifting speed: 12m/min.

10.  Descent speed: 20m/min.

11.  Auxiliary hoist lifting force: 8kN.

12.  Drilling rod length: 3m.

13.  Crawler chassis peed/Climbing angle: 2km/h/15°.

14.  Chassis auxiliary support: 1.5m High support oil cylinder

15.  Travel position(L*W*H:5600*2120*2650mm.

16.  Rig weight: 7.2 Ton

Power unit rotating speed/Torque Parameter(Diesel engine rotate speed as per 1600r/min)

1. Inudustrial professional export packing, full inspection on all packing details.

2. Standard wooden case for Down The Hole Drilling Rig exporting and shock absorbing for better outerior protection.

3. Considerate interior plastic sheeting protection to prevent from wet and moisture.

Chongqing Gold Mechanical & Electrical Equipment Co., Ltd. is the professional manufacturer in Geophysical instruments. Over 15 years experience engineers, and well-trained technicians, workers work together to back up our production line. We supply professional Drilling rigs with high quality and competitive price, such as: Core/Rock Drilling, Sample Drilling, Water Well Drilling, Down the hole Drilling, Truck, Crawler, Trailer, Tricycle mounted Drilling. We won high reputation from our customers mainly from Southeast Asia, Africa, Middle East, also including customers from Canada and some western countries like Germany, France. We do not just do trade business, but doing the business for providing better Customer Experience!  Sincerely welcome your inquiries!