Name: Top Rated Factory Hydraulic Hard Rock Drilling Machine
Brand: Gold
Availability: InStock

Product Details

Why choose us

Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd, a professional manufacturer with 15 years experience, specializing in geological equipments and related engineering drilling rigs.

We won our excellent reputation from our customers with our competitive offer and trustworthy quality. Our main target markets focus on Africa, Central and Southeast Asia, South America, especially for their water well drilling construction and geological investigation. We have an professional team for overseas technical after sales service since 2003, having achieved satisfying praise from our customers.

Looking forward to our cooperation, and we will do our best to satisfy you in 2016!

Product description

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.

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.

It has 2 reverse inversion speed in order to deal with accident.

JDL-300 works with mechanical transmission and auxiliary hydraulic transmission which effectively reduce the power consumption, and also makes drilling cost lower. 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.

JDL-300 adopts double oil pump, single pump works whilst drilling, double pump works whilst hoisting, which lower power loss and shorten auxiliary time. It has highly advanced mechanical structure and reasonable layout which is convenient to repair and maintain.

Using the crawler chassis with support oil cylinder which has a stroke of 1.5m, it can be loaded automatically and moved easily. Some interfaces are reserved to expand functions according to the technological requirements of different customers.

Technical Parameters

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)

Rotate speed: rpm Torque: Nm	Rotate speed	Torque	Rotate speed	Torque
Rotate speed: rpm Torque: Nm	Gear 1		Gear 2
Transfer case highgrade	68	2807	126	1384
Transfer case of lowgrade	14	13428	27	6533
	Gear 3		Gear 4
Transfer case highgrade	226	849	381	504
Transfer case of lowgrade	48	4008	81	2380
	Gear 5		Gear 6 (Reverse)
Transfer case highgrade	470	408	76	2526
Transfer case of lowgrade	100	1927	16	11923