borehole drilling machine
1.Fast drilling rate, 2.Strong cutting structure durability, 3.Bearing sealed: HJ, HA, W, 4.Good quality and after-sale service - details see: https://www.machineto.com/borehole-drilling-machine-10125262
| Condition:New | CNC or Not:Normal | Place of Origin:Hebei China (Mainland) | Brand Name:Kingdream |
| Model Number:HJ 517G | Type:Center Drill Bit | Material:alloy steel, tungsten carbide insert | certification:ISO9001&API |
| processing types:forging | formation:soft to hard formation | IADC:117-837 | colour:Blue yellow white, etc |
| Model | TCI BIT, STEEL TOOTH BIT |
IADC CODE | 116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347 |
| 417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535 | |
| available sizes: | From 2 7/8 to 26” larger sizes for hole opener bit ,reamer bit |
| advantage | most favorable price and best quality |
| bearing type: | sealed bearing and non-sealed bearing HJ(metal sealed journal bearing) HA (rubber sealed journal bearing aircooled bearing type |
| Formation or layer | soft ,medium soft ,hard, medium hard, very hard formation |
| Button size (extra features) | Button bit,saw teeth 1) Y-Conical teeth 2) X-chisel teeth 3)K- wide teeth 4)G- Gague protection |
| Material | Alloy steel ,carbide |
| Packing | Wooden case or steel case |
| Payment terms | T/T,L/C, Western union |
| Delivery terms | By sea or by air |
| Delivery time | Within 3 to 7 days |
| Market | Canada, USA, Middle east ,Africa, Europe |
| Application | Petroleum & gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work |
specifications
IADC | 437 | 517 | 537 | 617 | 637 | 737 | |
WOB | KN/mm (bit dia.) | 0.5-0.75 | 0.5-0.85 | 0.5-0.85 | 0.55-0.85 | 0.55-0.85 | 0.55-0.85 |
Lb/in (bit dia.) | 2860-4280 | 2860-4860 | 2860-4860 | 3140-4860 | 3140-4860 | 3140-4860 | |
r.p.m | 70-45 | 70-45 | 70-45 | 70-45 | 60-40 | 60-40 | |
| Packaging Detail:wooden case or as yolur need |
| Delivery Detail:within 7 days after receive payment |
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