Product Description 400m DTH hammer water well rotary drilling machine DFQ-400A 400m DTH hammer water well rotary drilling machine DFQ-400A can drill in various ground conditions with air compressor and DTH hammer drilling .
It used full hydraulic controlling for drill tower lifting, drill rod installing and uninstalling, rotary and feeding, standing legs, hoist and moving, greatly reduce labor cost, improving working efficient and project quality.
Technical Parameter

400m DTH hammer water well rotary drilling machine DFQ-400A
Number	Name	unit	Parameter
1	Max drilling depth	m	400m
2	borehole drilling caliber	mm	115-305mm
3	drill rod length	m/pc	3m
4	Diesel engine power	kw	84Kw/2200rpm
5	Electric engine power	kw	55Kw/1480rpm
6	propulsive force	tonf	7.5
7	lifting force	tonf	13
8	Rotation torque	N·m	5000-6000
9	Rotation drilling rate	rpm	0-65
10	Rotation drilling rate	rpm	70-120
11	Size	m	5.4×2.1×2.3
12	Weight	kg	6500

Working Site Our Company ZhengZhou Defy 12 years professional exporting experience, realiable drilling machine manufacturer since 1970S.

Defy offer water well rotary drilling machine drilling depth from 100m, 200m, 400m, 600m, 800m and 1500m. with 75-1500mm diameter. geotechnical core drilling machine from 0-3000m depth. 

Spindle rotary type drilling machine, pneumatic drilling machine, trailer, crawler, truck mounted drilling machine for your choices. 
Contact Me

Feel free to contact me
Name	James Feng
Mobile	0086-15937157989
Email	James(at)zzdefy.cn
Skype	defy003
Website	www.zzdefy.com.cn

FAQ Are you manufacturer? Yes, we have research & develop department, production department, sales department. you are welcome to visit us. When deliver the goods? In 7-10 working days after receiving full payment. Are wearing parts available? Yes, all wearing parts and other accessories are all available all year round at factory price.