Brighttop Global Co., Ltd
| Application | DTH, Top Hammer Bits |
| Feature | Precision-Formed Profile |
| Button Profile | Spherical, Ballistic, Conical |
| Compatible Machines | Jasco, Dorey, King Pin |
| Type | Diamond Grinding Pin |
| Function | Carbide Button Regrinding |
| Shank | 8 mm / 9 mm Round Shank |
| Coolant Channels | Optional |
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Spherical Ballistic Diamond Grinding Cup For Rock Drill Bits
Product Specification
| Application | DTH, Top Hammer Bits | Feature | Precision-Formed Profile |
| Button Profile | Spherical, Ballistic, Conical | Compatible Machines | Jasco, Dorey, King Pin |
| Type | Diamond Grinding Pin | Function | Carbide Button Regrinding |
| Shank | 8 mm / 9 mm Round Shank | Coolant Channels | Optional |
| High Light | 9mm Shank Diamond Grinding Pin ，Round Shank Diamond Grinding Pin ，Button Bits Grinding Pin | ||
Brighttop Global Co., Ltd. supplies high-quality diamond grinding pins designed for reconditioning worn carbide buttons on rock drilling bits. The precision-formed grinding profile helps restore the original shape of the carbide button while controlling material removal and maintaining consistent grinding results.
Our grinding pins are available in different diameters, button profiles and shank connections to match various button bit grinding machines. Suitable options are available for spherical, semi-ballistic, full-ballistic and conical carbide buttons.
Depending on the grinding pin design, the tool can regrind the carbide button only or grind both the carbide button and the surrounding steel body. Optional coolant channels help improve cooling and remove grinding debris during operation.
These grinding pins are suitable for maintaining DTH bits, top hammer bits, threaded button bits and tapered button bits used in mining, quarrying, tunneling and construction drilling.
Selecting a grinding pin that closely matches the diameter and profile of the carbide button helps reduce unnecessary material removal and preserve the original button geometry.
| Shaft styles: Drive arrangements are standardized to suit the most common grinding machines: | ||||
| Picture | Type | Main Structure | Commonly Compatible Equipment | Key Features |
|
Wing (Shoulder) Drive | 8 mm round shank with a drive shoulder or wing, usually fitted with an O-ring | Jasco, Dorey, KING PIN and similar grinding machines | Transfers torque through the shoulder for stable positioning; one of the most common universal connections |
|
San-Drive / Sancup | 9 mm shank with a dedicated positioning structure | Sanroc, Sanbee and similar systems | Mainly designed for SV type grinding machines; compatibility cannot be determined by shank diameter alone |
|
Plain Shaft | 8 mm or 9 mm cylindrical straight shaft | Grinding machines using collets, drill chucks or universal chucks | Simple structure and relatively wide compatibility, but the chuck must clamp the shaft securely to transmit torque |
|
Atlas Copco Teroc 55-Drive | Dedicated 55-drive connection structure | Atlas Copco / Teroc 55 grinding systems | A dedicated connection with fast installation and accurate positioning; cannot directly replace a standard 8 mm or 9 mm shaft |
|
Hex-Drive | Internal hexagonal socket or dedicated hex connection inside the cup shank | CME series grinding machines | The hexagonal surfaces transmit torque directly and reduce slipping; normally requires a matching CME chuck |
Company Details
Business Type:
Manufacturer,Exporter
Total Annual:
500-1000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Brighttop Global Co., Ltd. is a professional and trusted supplier of expansive mortar, rock drilling tools and related equipment for the quarrying, mining, construction, demolition and tunneling industries. With extensive industry experience, we provide reliable products, practical technical support... Brighttop Global Co., Ltd. is a professional and trusted supplier of expansive mortar, rock drilling tools and related equipment for the quarrying, mining, construction, demolition and tunneling industries. With extensive industry experience, we provide reliable products, practical technical support...
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