• Model NO.：CIR90
• Application：DTH Drilling. Coal Mining, Quarry
• Model：CIR90
• Transport Package：Plywood
• Specification：CE
• Trademark：BESTLINK
• Origin：Xiamen, China
• HS Code：82071990
• Production Capacity：10000PCS,Month

CIR90 down the hole DTH drill hammerDescription:CIR90 down the hole DTH drill hammer were used for blast hole drilling
and water well drilling project.
Working with DTH drilling pipe and DTH drill bit, mainly applied in Mining,
Marble quarry or well drilling and other construction projects.Quality level:95% similarity to COP/SD/MISSION/QL/BR/DHD etc famous brandMOQ:No requirement for testing and trial orderSeries:COP/ SD/ DHD/ IR/ Mission/ QL/ BR/ CIR etc Specification:Weight (kg)External Diameter (mm)Connection threadHole rang (mm)Impact rateRecommended rotation speedLow air pressure DTH hammer CIR type5 ~2250~180CIR**55~200820 rpm Middle air pressure BR & COP type10~3070~110 85~115  3 inch DTH hammer
COP34/QL30 etc24.581API 2 3/8" Reg90~11028Hz (at 17 bar)28 r/min4 inch DTH hammer
COP44/DHD340 etc39.299API 2 3/8" Reg110~15027Hz (at 17 bar)25~40 r/min5 inch DTH hammer
COP54/Mission50 etc71.5125API 2 3/8" or API 3 1/2" Reg135~16525Hz (at 17 bar)20~30 r/min6 inch DTH hammer
COP64/QL60 etc98142API 3 1/2" Reg152~21623Hz (at 17 bar)15~25 r/min8 inch DTH hammer
COP84/SD8 etc188180API 4 1/2" Reg203~30520Hz (at 17 bar)15~20 r/min