Established in 1989, Beijing Superior Drilling Equipment Co., Ltd is a comprehensive enterprise with highly specialized expertise in design, R&D and manufacture of tri-cone and PDC drill bits. We cover an area of 27 acres in the vast expanse of central Hebei Plain, surrounded by the major oil fields and enjoy favorable transport convenience.
Our products are certified by API7-I, ISO 9001: 2008, ISO14001: 2004 and OHSAS 18001: 2007. Our products have been marketed in major Chinese provinces, municipalities and exported to over forty countries and regions in Europe, Asia, Africa and Americas, with good reputation ascribed to our superior quality and competitive price. Equipped with advanced technology, facilities and management, we are manufacturing high performance tri-cone drill bits and PDC bits applied in oil, gas and mining exploitation, complying with highest technical quality standards and API specification.
"Quality First, Customer Foremost" is the permanent principle we are adhering to and we are looking forward to establishing long-term mutual business partnerships with customers around the globe.
SIZE : 8-1/2 inch Diameter: 215.9mm IADC : 622/635/635/637/625/627 Bearing Type : Rubber/Metal Jounary Bearing Circulation Type: Water Cutting Structure: Inner & Nose Rows Gage Rows: Tungston carbide instert Pin Connection : 4-1/2" Metric Bit Diameter: 215.9mm Product Weight: 38kgs
Operation Recommendations Weight On Bit (KN/mm): 0.45-1.1 RPM (r/min): 120-50
Toqure(KN.M): 16.3-21.7
Application :Drilling Industrial ,oil drilling ,mining drilling, water drilling ,
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