| After-sales Service: | Yes |
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| Warranty: | Yes |
| Certification: | ISO 9001:2008 |
| Standard: | ASTM |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Forging |
| Samples: |
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| Customization: |
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Audited Supplier The tricone bit consists of three rotating cones working inside each other and each with its own row of cutting teeth.
The tricone bit has three roller cutter cones with a series of teeth that crush rock on the rock face as they roll over the face.
A tricone bit is a drill bit with a head that is divided into three main parts
Available sizes: From 2 7/8 to 26"
| IADC | WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
| 114/116/117 | 0.3~0.75 | 180~60 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc. |
| 124/126/127 | 0.3~0.85 | 180~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 134/135/136/137 | 0.3~0.95 | 150~60 | Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 214/215/216/217 | 0.35~0.95 | 150~60 | Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 227 | 0.35~0.95 | 150~50 | Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. |
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| IADC | WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
| 417/437/ 447/415/435 |
0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc. |
| 517/527/515 | 0.35~1.0 | 140~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 537/547/535 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. |
| 617/615 | 0.45~1.1 | 90~50 | Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
| 637/635 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc. |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
The way the tricone breaks through the rock is by using its multitude of very small chisel shapes, which protrude from a roller. These are pushed into the rock by the rods that connect it to the surface, and the weight is distributed evenly to break through.
1.Bit leg protection
Bit leg protection carbide alloy button insert on the leg's surface,back and the top space of the leg's build up welding of abrasion-resistant alloy
2.Bearing structure
Roller-ball-second Thrust-roller-first Thrust-sealing, abrasion resiatance carbide button insert on the bearing surface
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.Delivery: By air, By sea or By express
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Audited Supplier 
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