Pearldrill Factory Direct Supply HDD Rock Reamer 22inch Trenchless Drilling Tool

Drill Type Features1-3 Milled Tooth Bit4-8 Insert Tooth BitDetailed explanation of drill bit model code1- Milled Tooth Bit, soft formation (low compressive strength, high drillability)2- Milled Tooth Bit, medium to medium hard formation (high compressive strength)3- Milled Tooth Bit, Hard, Abrasive or Moderately Abrasive4- Insert Tooth Bit, soft formation (low compressive strength, high drillability)5- Insert Tooth Bit, soft to medium hard formation (low compressive strength)6- Insert Tooth Bit, medium hard formation (high compressive strength)7- Insert Tooth Bit, Hard, Abrasive or Moderately Abrasive8- Insert Tooth Bit, extremely hard, highly abrasive formation  NameTricone BitModelTCI 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 347417 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  535available sizesFrom 2 7/8 to 26"larger sizes for hole opener bit ,reamer bitadvantagemost favorable price and best qualitybearing typesealed bearing and non-sealed bearingmetal sealed journal bearingrubber sealed journal bearingaircooled bearing typeFormation or layerSoft, medium soft, hard, medium hard, very hard formationButton size (extra features)Button bit, saw teeth1) Y-Conical teeth 2) X-chisel teeth3)K- wide teeth4)G- Gauge protectionPackingWooden caseDelivery termsBy sea or by airMarketCanada, USA, Middle east ,Africa, EuropeApplicationPetroleum & gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work    IADCRock formationWOB (KN/mm)PRM(r/min)417/427/437Low compressive strength, high drill-ability and extremely soft formation, like shale, clay, sandstone, conglomerate etc0.35~0.90140~70447Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, plaster etc.0.35~1.00140~60517Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, etc0.35~1.05120~50527Soft formation with low compressive, like Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, anhydrite etc.0.35~1.05120~50537/547Low compressive strength, medium hard formation with hard abrasive interlayer, like Hard shale, anhydrite, soft limestone, sandstone, dolomite with mezzanine, etc.0.50~1.05110~40617/627High compressive strength, medium hard and thick hard interlayer, like hard shale, limestone, sandstone, dolomite, etc.0.50~1.0580~40637/737High compressive strength, medium hard and high abrasive formation, like limestone, dolomite, sandstone, chert, etc.0.7~1.2070~40Note: Please do not select the maximum value for WOB and rotational speed at the same timeCutting StructureThe wear-resistance of the teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for the steel tooth bit.The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bitGauge StructureMultiple gague 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 capacity and bearing life.Bearing StructureHigh precision journal bearing with two thrust faces,Balls lock the cone.Hardfaced head bearing surface.Cone bearing inlaid with friction-reducing alloy and then silver-plated.Abrasion resistance and seizure of the bearing are improved.and suitable for high rotary speedSeal and LubricationThe advanced metal seal package consists of two metal seals and two elastic energizers.Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force,and achieves the bearing seal.In the drilling,metal seals are relatively dynamic,and the energizers are static.This will improve the reliability and durability of bearing seal.The pressure compensator system and advanced grease can greatly increase the lubricating reliability.-COMPANY BRIEF-We provide high-quality and complete drilling equipment including drilling rigs, drilling tools, mud pumps, DTH drilling tools, rock drilling tools, etc. They are widely used in water wells, farmland irrigation, geological exploration, small pile holes, geothermal, rope coring, Mining etc. Our products are the products of choice for drilling engineers in many countries due to their precise design and efficient drilling in use.Main productApplicationBorehole drilling, Civil Infrastructure, civil engineering, and infrastructure, for rock core drilling, Soil Testing and sampling, geophysical survey companies, Pile foundation drilling, bridge drilling, wind power generation, large-mouth engineering drilling, oil field, metallurgy, mining, geological mineral exploration, water conservancy and