High and Low Air Pressure DTH Hammer Bit for Drilling

High Air pressure DTH hammer1, valveless air distribution. More reliable. 2, simple design of the piston, long life. 3, More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption. 4, fewer internal parts, simple structure, longer life, less failure and easier to maintain becayse all the parts are heat treated. 5, It is easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread. Available series of DTH hammer:1) high pressure SD series hammer: SD 5, SD 6, SD 8 and SD 12 DTH Hammers. QL series hammer: QL 50, QL 60, QL 80 DTH Hammers. HD series hammers: DHD 3.5, DHD 340. DHD 350, DHD 360, DHD380 DTH Hammers. Mission series hammers: M30, M40, M50, M60, M80 DTH Hammers. Cop series hammers: Cop 32/34, Cop 42/44, Cop 54/64 DTH Hammers. 2) low air pressure: BR1, BR2, CIR 70, CIR 90, J60, J80, J100, J150, etc. COP 34, COP 44, COP 54, COP 64 Gold, COP 64, COP 84L, COP 84 hammers HammerCOP 34COP 44COP 54COP 64 GoldCOP 64COP 84LCOP 84TypePart No.Part No.Part No.Part No.Part No.Part No.Part No.Standard9703-03-009704-03-009705-03-009706-5-309706-05-009708-8-89708-08-009705-05-00Q9703-3-49704-3-49705-3-49706-05-349706-5-4  9705-5-4QHD  9705-03-06 API Reg 9706-05-06 API Reg  9705-05-06 API Reg9706-05-36 API Reg 9706-07-36 API IFWHD  9705-03-20 (API Reg)    Technical data Effective length954 mm958 mm1069 mm1163 mm1213mm1230 mm1323 mmExternal diameter83.5 mm98 mm120 mm142 mm142 mm160 mm178 mmExternal diameter HD  126 mm146 mm146 mm  Hammer weight27 kg38 kg57 kg96 kg95 kg139 kg158 kgHammer weight HD  67 kg109 kg109 kg  Recommended bit size95-105 mm110-125 mm134-152 mm156-178 mm156-178 mm191-219mm203-254 mmRec. bit size HD hammer  140-152 mm165-178 mm165-178 mm  Rit shankCOP 34 (Secoroc 3.5")IR340AIR350RIRQL60IR 360 alt. Mission SD6/ 53-15Mission SD8/ 63-15IR380Top sub thread2 3 /6API Reg.2 3 /6API Reg2 3 /6API Reg3 1 /2API Reg3 1 /2API Reg4 1 /2API Reg4 1 /2API Reg3 1 /2API Reg3 1 /2API IFWrench flat65 mm65 mm65 mm102 mm102 mm120 mm140 mm95 mmWrench flat HD  95 mm    102mmWorking pressure6-25 bar (87-360 psi)6-25 bar (87-360 psi)6-25 bar (87-360 psi)6-30 bar (87-430 psi)6-25 bar (87-360 psi)6-25 bar (87-360 psi)6-20 bar (87-290 psi)/* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1