DF-Y-4T diamond used core drilling machine with spt equipment   Product Overviews DF-Y-4T diamond core drilling machine is a new type high speed diamond core drill, designed according to the development of geological work in China and developed to meet the requirements of clients. DF-Y-4 Core Drill has been identified in 1976, and rewarded with the Chinese National Silver Medal in 1988. The DF-Y-4model has been sold all over the country.   It is also suitable for engineering  geological subterranean water explorations as well as explorations of shallow layer oil and natural gas, and can be used to drill holes for ventilation and drainage  of main Gallery. Technical parameter     

Drilling capacity			Drilling hole			Drilling depth
			Φ42mm(1.65inch) drill rod			1000 m(3280 feet)
			Φ50mm(1.97inch) drill rod			700 m (2296 feet)
Angle range			0°-360°
Spindle speed(r/min)		Driven by power machine speed 1500 r/min	Forward	Low speed		101;  187; 267; 388,
				High speed		415;765;1090;1588
			reverse	Low speed		83
				High speed		251
		Driven by power machine speed 2000 r/min	Forward	Low speed		135; 250; 355; 517
				High speed		415;765;1090;1588
			reverse	Low speed		110
				High speed		338
Traveling device			Retraction cylinder stroke		460mm (18.11 inch)
			Distance between drill rig and hole		310  mm (12.20 inch)
Pressurizing system			Cylinder I.D.		70 mm(2.76 inch)
			Cylinder rod dia.		35 mm (1.38 inch)
			Max. pressure		45 KN(10116 lbf)
			Max. lifting force		60 KN(13488lbf)
			Cylinder stroke		550 mm (21.65 inch)
Oil pump			Displacement		-32+12   L/min (8.5+3.2 US 9allons/min)
			Speed		1500(r/min)
			Working pressure		8Mpa (1160 psi)
			Max. pressure		12  MPa (1742 psi)
Power unit	Type		Electric motor Y200L-4		diesel engine ZH100G43
	Efficiency		30 kW		31KW
	speed		1470rpm		1500rpm
Dimensions (L×W×H)			2710x1100x1750mm(106.7×43.3×68.9   inch)
Weight of drill (without power unit)			1750kg

  After-Sales Service 1. One year quality guarantee for main machine; 2. Training: operation manual, overseas installation is also available; 3. Spare parts are available in our factory at cost price for former customers; 4. 24 hour on-line guidance for operation and maintenance.   Company Information Established in 1970s, Zhengzhou Defy has growned into one leading drilling rig manufacturer in China, specilizing in drilling rig technology R&D, manufacturing, etc. We spark on conventional rotary drilling rig, new pneumatic drilling rig and are inventing another drilling rig with performance same as pneumatic one, but with much less investment for users.   Our core drilling machines are widely used for water well drilling, irrigation well drilling, geothermal hole drilling, mining blast hole drilling, construction pile work drilling, air-conditioner hole drilling, etc.   DEFY Brand core sample drilling rigs have been widely exported to Chile, Russia, Australia, Malaysia, Kenya, Tansanzia, Zambia, South America, Peru, Zimbabwe, etc.   Every customer is very welcomed to our factory for visiting driling rig,  talking onsite and details. ^_^   Contact Detail Contact us: Lucile Liu Tel: 0086-371-55819257 Fax: 0086-371-66770722 Mobile & Whatsapp: 0086-18135686181 Mail: lucile ( at ) zzdefy.cn Skype: defy007 Web: www.zzdefy.com.cn          www.zzdefydrillrig.com Facebook: lucileliu1