Wide-Blade Milled Auger Drill Pipe

• Customization: Available
• Certification: ISO 9001:2015
• Manufacturing Process: Friction Welding
• Material: Alloy Steel
• Transport Package: Wooden Box
• Specification: 73mm~108mm
• Trademark: ROCK BIT
• Origin: Xi′an

Product Description

[Application scope]
The rods are mainly used for borehole drilling in soft and outburst-prone coal seams or other in fragmentized formations. During the drilling process, the blade can agitate big block of the drilling cuttings that deposited in the bottom of borehole. Thus, drilling cuttings will be removed under the function of drilling fluid (usually compassed air) easier, which has better drilling cuttings removal effect compared with air drilling. Fairly high drilling success rate and long drilling depth have achieved in soft and outburst-prone coal seams.

[Technical specification and recommended gradation]

Description	Type	Steel grade	Length(mm)	I.D.(mm)	Torsion of drill rigs (N·m)	Size of drill bits (mm)
						Optimization	Option
Φ73	ZGLZΦ73	R780	1000,1500, can be customized	Φ22	≤4000	Φ94	Φ113
Φ73 High-pressure sealing	ZGLZΦ73-M			Φ22	≤4000	Φ94	Φ113
Φ73-36	ZGLZDΦ73-36			Φ36	≤4000	Φ103	Φ94
Φ89	ZGLZΦ89			Φ30	≤6000	Φ113	Φ133
Φ89-41	ZGLZDΦ89-41			Φ41	≤6000	Φ103	Φ120
Φ89-42-R	ZGLZDΦ89-42-R			Φ42	≤6000	Φ103	Φ120
Φ108 (NC31)	ZGLZΦ108			Φ50.8	≤12000	Φ133	Φ153

P.S. The marked tool joint is designed with the large diameter structure, which can be customized and developed according to the user's technology requirements, to meet the whole process of lower guard aperture screen pipe drilling and other special technology requirements.