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| CUTTING STRUCTURE |
| Spherical on outer rows, conical on inner rows. |
| Designed for medium-hard formations with high compressive strength and highly abrasiveness, such as flint, limestone, sandstone, dolomite, etc. |
| Compressive strength: 29,000-38,000 psi |
| SHIRTTAIL PROTECTION |
| Hard welding and wear resistant carbide protection on shirttail and lug back. |
| PRODUCT SPECIFICATION |
| IADC Code: 637 |
| Bearing Type: Journal bearing/Rubber sealing ring |
| Circulation Type: Mud |
| Cutting Structure: |
| Inner rows: Conical |
| Outer rows: Ovoid |
| Gage bevel Protection: Flat |
| Pin Connection: 4 1/2″ API REG |
| Bit Diameter: 216mm |
| Product Weight: 38Kg |
| OPERATING SUGGESTIONS |
| Weight on Bit: 0.70--1.05 kN/mm |
| Rotational Speed: 40-70 rpm |
In 2020, the company welcomed a group of new vigorous college students.In order to make these college students better fit in Shareate, take root in
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The initial development of cemented and sintered carbides occurred in Germany in the 1920s. ThyssenKrupp says, "Sintered tungsten carbide was developed by the "Osram study
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Email: info@shareate.com
Address: No.6 Weixi Road, Suzhou Industrial Park
