50mm Tapered Thread Round Drill Pipe, DTH Drill Pipe, Deep Hole Drilling Tools

• After-sales Service: 6 Months for Machinery Warranty
• Warranty: 6 Months for Machinery Warranty
• Certification: ISO 9001:2000
• Standard: AISI
• Surface Treatment: Without Processing
• Manufacturing Process: Welding
• Model NO.: 50mm
• Material: R780
• Transport Package: Wooden Box
• Specification: 50*1000-3000
• Trademark: YK
• Origin: Shandong Linqing
• HS Code: 84314320
• Production Capacity: 50000pieces/Month

Product Description

50mm Tapered thread round drill pipe, DTH drill pipe
 

      Geological drilling rod is used as a drilling tool for coal exploration, gas exploration and geological exploration. The geological exploration rod produced by our company is also known as the drill pipe, the round drill pipe, the outer horizontal drill pipe, the geological alloy drill pipe and the conventional drill pipe for the coal mine tunnel. It includes the drilling rod for diameter less than 89mm and the drill pipe for drilling. The drill stem body is selected for special quality alloy steel pipe, and the drill pipe joint is made of high quality alloy structural steel. After vacuum conditioning, the fatigue strength and shear strength are greatly improved. The advanced friction welding technology is used to produce and process. The drill rod has high bending strength and strong welding point. The production equipment completely uses advanced CNC machining equipment, which has the characteristics of high production efficiency, high quality and stability. It can guarantee the requirement of straightness for deep hole drilling, and the product has high strength and long service life.

 

NO.	(mm)Diameter	(mm)Thickness	Steel products	Torque	(m) Depth	Joint hardness	Standards
1	Φ33.5	5	DZ50	2000N/M	100	HRC28-32	MT/T-521-2006
2	Φ42	6.2	DZ50	3000N/M	100	HRC28-32	MT/T-521-2006
3	Φ50	6.5	DZ50	5000N/M	100	HRC28-32	MT/T-521-2006
4	Φ63.5	7.1	R780	8000N/M	200	HRC28-32	MT/T-521-2006
5	Φ73	7.8	R780	10000N/M	200	HRC28-32	MT/T-521-2006
6	Φ89	9.5	R780	12000N/M	300	HRC28-32	MT/T-521-2006
7	Φ102	9.5	R780	12000N/M	300	HRC28-32	GB-T13344-2010
8	Φ114	9.5	R780	15000N/M	300	HRC28-32	GB-T13344-2010
9	Φ127	9.5	R780	20000N/M	300	HRC28-32	GB-T13344-2010