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| Place of Origin | China |
| Brand Name | ROSCHEN |
| Certification | API |
| Model Number | 8 1/2" |
Drill Bit for Mining (PDC Drilling Bits & Tricone Bits)
Specification:
| Bit Size | Bit Specification | Operating Parameters | ||||
| (in) | Nozzle Qty | Gauge Length | API Reg (in) | Flow Rate (LPS)1/s | Rotary Speed(RPM) | Weight on Bit(KN) |
| (pcs) | (in) | |||||
| 6 | 4 | 1 1/2 | 31/2 | 10~16 | 60-300 | 10-40 |
| Feb-81 | 4 | 2 3/8 | Feb-41 | 28-36 | 60-300 | 10-60 |
| Feb-91 | 4 | 3 | Aug-65 | 30-40 | 60-300 | 10-80 |
| 121/4 | 6 | 3 | Aug-65 | 44-60 | 60-150 | 30-140 |
| Bit Size | Bit Specification | Operating Parameters | ||||
| (in) | Nozzle Qty | Gauge Length | API Reg | Flow Rate (LPS)1/s | Rotary Speed(RPM) | Weight on Bit(KN) |
| (pcs) | (in) | (in) | ||||
| 6 | 5 | 1 1/2 | 31/2 | 10~16 | 60-300 | 40-60 |
| Feb-81 | 5 | 2 3/8 | Feb-41 | 28-36 | 60-300 | 60-100 |
| Feb-91 | 6 | 2 1/2 | Aug-65 | 30-40 | 60-300 | 80-120 |
| 121/4 | 7 | 2 1/2 | Aug-65 | 40-60 | 60-150 | 60-160 |
| Bit Size | Bit Specification | Operating Parameters | ||||
| (in) | Nozzle Qty | Gauge Length | API Reg | Flow Rate (LPS)1/s | Rotary Speed(RPM) | Weight on Bit(KN) |
| (pcs) | (in) | (in) | ||||
| 6 | 4 | 1 1/2 | 31/2 | 10~16 | 60-300 | 40-80 |
| Feb-81 | 6 | 2 3/8 | Feb-41 | 28-36 | 60-300 | 60-100 |
| Feb-91 | 6 | 2 1/2 | Aug-65 | 30-40 | 60-300 | 80-120 |
| 121/4 | 7 | 2 1/2 | Aug-65 | 40-60 | 60-150 | 60-160 |
Tricone bit
Provide various models, sizes, types of three-cone drill. Tipped tricone, steel tooth tricone bit with metal seal, rubber sealing points, there are a variety of optional add-on feature: dorsal the diamond composite tooth Paul diameter tricone the diamond composite tooth Paul diameter, hard plastic the stratigraphic cutting structure, convex top Sphenodon, cone ball gear, and so on, can be custom processing.
| Size(in.) | Size(mm) | IADC | Revolving speed |
| Number | |||
| 3 1/2" | 88.9 | 617 | 80-40 |
| 637 | 70-40 | ||
| 737 | 70-40 | ||
| 4 5/8" | 117.5 | 637 | |
| 647 | 70-40 | ||
| 737 | |||
| 4 3/4" | 120.3 | 617 | 80-40 |
| 627 | |||
| 737 | 70-40 | ||
| 5 1/2" | 139.7 | 617 | 80-40 |
| 637 | 70-40 | ||
| 737 | |||
| 5 7/8" | 149.2 | 617 | 80-40 |
| 627 | |||
| 737 | 70-40 | ||
| 6" | 152.4 | 627 | 80-40 |
| 6 1/4" | 158.8 | 637 | |
| 6 1/4" | 165.1 | 737 | 70-40 |
| 6 3/4" | 171.4 | 837 | |
| 7 1/2" | 190.5 | 627 | 80-40 |
| 637 | |||
| 7 7/8" | 200 | 737 | 70-40 |
| 837 | |||
| 8 1/4" | 209.6 | 517 | 120-50 |
| 8 3/8" | 212.7 | 527 | |
| 8 1/2" | 215.9 | 537 | 110-40 |
| 8 3/4" | 222.2 | 547 | |
| 9 1/2" | 241.3 | 527 | 120-50 |
| 9 5/8" | 244.5 | 537 | |
| 9 7/8" | 250.8 | 547 | 110-40 |
| 10 5/8" | 269.9 | 517 | 120-50 |
| 527 | |||
| 437 | 140-60 | ||
| 11" | 279.4 | 537 | 140-40 |
| 11 5/8" | 295.3 | 437 | 120-50 |
| 12 1/8" | 308..0 | 437 | 120-50 |
| 12 1/4" | 311.1 | 447 | |
| 12 15/32" | 320 | 537 | 140-40 |
| 13 1/8" | 333.4 | 437 | 120-50 |
| 13 5/8" | 342.9 | 447 | |
| 13 3/4" | 342.9 | 537 | 110-40 |
| 14 5/8" | 355.6 | 417 | 120-50 |
| 14 3/4" | 374.6 | 437 | |
| 537 | 110-40 | ||
| 15 1/2" | 393.7 | 517 | 110-40 |
| 537 | |||
| 437 | 120-50 | ||
| 16" | 406.4 | 517 | 110-40 |
| 537 | |||
| 437 | 120-50 | ||
| 17 1/2" | 444.5 | 417 | 120-50 |
| 517 | 110-40 | ||
| 537 | |||
| 20" | 508 | 417 | 120-50 |
| 537 | |||
| 517 | 110-40 | ||
| 26" | 660.4 | 517 | 110-40 |
| 537 | |||
| 417 | 120-50 |
PDC ADVANTAGES
PDC Drill Bits are equipped with Hardened Alloy Steel base material;High performance PDC-Cutters;Carbide and Diamond gauge protection;Carbide/Diamond Shock Studs;Threaded or Plain Carbide Nozzles for Flushing.
Above features are subject to changes and modifications according to customers' requirements.
Diamond bits work across an extended range of weight on bit, penetrating quickly even at low bit weights in softer rock. When formations firm up, the bits can take added weight with a smooth torque response and maintain higher than competitive rates of penetration. The technology is a departure from traditional plural set bits that require higher weights to drill even in soft rock, and are generally durable, but slow, even in harder rock. Traditional plural set bits also can produce an erratic torque response when taking additional weight.
We are a Robert Roschen family owned Global leading manufacturer of rock drilling tools, like Roller Tricone Rock Bits, Hole Opener, Single Cone Roller Bits, PDC Bits, Diamond PCD Tricone Drill Bits, DTH Drilling Tools, such as DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Germany, China(joint-venture).
Owing to high quality, professional serivce and competitive price, we have gotten good reputation from our customers from all over the world, such as US, Canada, France, Spain, Italy, South Africa, South Latin Amercia, Brasil, Saudi Arabia, UAE, Iran, Malaysia, Australia, etc.
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
http://www.roschengroup.com
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