Product Description DF-300S deep borehole drilling machine for granite and marble


DF-300S water drilling rig Application The rig is widely used in water wells, manholes, precipitation wells, geothermal air conditioning hole and other drilling exploration projects. 
It can also used for geotechnical engineering foundation reinforcement, pipe-following drilling for gravel and other loose stratums, hard stone borehole and other projects. Technical Parameter

water well drilling rig
Item	Unit	Specification
Drilling hole diameter	mm	115~300
Drilling depth(m)	m	300
Work pressure	(MPa)	1.05~2.46
Air consumption	(m³/min)	16~30
Lifting force	(N)	68000
Rotation torque	(Nm)	4000
Drill rod caliber(mm)	mm	76/89/102/114
Drill rod length(m)	m	3
Dimension(mm)	mm	5690*2000*2800
Total weight	(Kg)	8700

DF-300S water drilling rig Advantages: 1.Power system is hydraulic system driven by diesel engine.

2.Equipped with different size DTH impacter and DTH bits according to caliber. Air compressor used for air supply and well flushing.

3.Steel crawler chassis, easy to move. (Rubber belt crawler for choice, appropriate for city road.)

4.The motor is imported from USA with small size but large torque. Rotation speed can be adjusted according to different working condition to improve drilling speed.

5.Oil cylinder and steel wire rope structure used for lifting and lowering drill pipe. Safe and reliable. Axial pressure can be adjusted according to different working condition to improve drilling speed.

6.Unique double-acting tower design. Only 1 minute needed from drilling tower to main hoist. Two drill pipes can be added or released at each time.

7.Separate hydraulic oil cooler for hydraulic system to ensure continuous work outdoors in hot weather conditions.
Packing & Delivery

Packaging
Size	5690*2000*2800 mm
Weight	8.7T
Packaging Details	1, Drilling Rig main machine in container 2, accessories in Wooden Case or according to your requirement

Our Company Our Service Delivery time Depends on the quantity, usually it is 7-10 working days after receiving the deposit.
Quality control We have QC department, before shipping, goods will be strictly checked.
Tech support - 24 hours * 7 days online pre & after sale service ;
- Factory site training or engineers go to overseas to train the workers ;
- Manual and DVD operation video.
Contact
Nora
Tel : +86-371-55819257
Fax: +86-371-66770722
Email: nora(at)zzdefy.cn
Cellphone/whatsapp/Wechat: +8615286806707