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| Brand Name: | JCDRILLS |
| Model Number: | 20inch |
| MOQ: | 5pcs |
| Price: | Negotation |
| Payment Terms: | T/T, L/C, D/P, Western Union, MoneyGram |
| Supply Ability: | 20000pcs/Year |
12 1/4" 14 3/4" and 20" 535/635 metal sealed tricone bit with roller bearing for borehole drilling on soft formation
Application
12 1/4" 14 3/4" and 20" 535/635 metal sealed tricone rock bits 517 mining drilling bits for Rotary Mining Drilling IADC 214 / 215 / 216 / 217 is suitable for various formations, and achieves high RPM under low to medium WOB application
Characteristics
Cutting Structure
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
Gauge Structure
Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Bearing Structure
High precision roller bearing with two thrust faces. Ball lock the cone.Thrust faces hardface with wear resistant alloy. Abrasion resistance and seizure resistance of the bearing are improved.
Seal and Lubrication
Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
Specification
| 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. | |||
Packing& Delivery
Service
In our after sales service system, We establish perfect control system strictly according to ISO-9000 series, in this system, technology date and problem solve solution and preventive measures will be provided in any maintain project, all the spare parts will be used in new OEM products with installation instructions, packing list, manufacturer's instruction, qualification and Warranty certificate.
We provide "one equipment & one case, endless service, namely the after sales service begin from the order confirmation, last for the working life of the equipment.
Purchase Process
Video
Video
