Product Description :
Dth Hammer Types:
Low air pressure: 0.5-0.7Mpa
Middle air pressure :Â 0.7-1.8Mpa
High air pressure:1.8-2.5Mpa
Parameter of Fujian very hard rock rotary hammer drill:
DTH hammer type | MHD35 | MHD45 | MSD4 | MQL4 | |
Length(less bit) mm | 930mm | 1030 | 1084 | 1097 | |
Weight(less bit) kg | 25kg | 39 | 40.5 | 41 | |
External diameter mm | Φ82mm | Φ99 | Φ99 | Φ99 | |
Bit shank | DHD3.5 | COP44 DHD340 | SD4 | QL40 | |
Hole range(mm) | Φ90-110 | Φ110-135 | Φ110-135 | Φ110-135 | |
Connection thread | API 2Â 3/8" Reg. | API 2Â 3/8"Reg | API 2Â 3/8"Reg | API 2Â 3/8"Reg | |
Working pressure | 1.0-1.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 28Hz | 27Hz | 27Hz | 27Hz | |
Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | 25-40r/min | |
Air consumption | 1.0Mpa | 4.5m3/min | 6.0m3/min | 6.0m3/min | 6.0m3/min |
1.8Mpa | 9.0m3/min | 10.0m3/min | 10.0m3/min | 10.0m3/min | |
2.4Mpa | Â | 15.0m3/min | 15.0m3/min | 15.0m3/min | |
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DTH hammer type | MHD55 | MHD55C | MSD5 | MQL5 | |
Length(less bit) mm | 1214 | 1160 | 1175 | 1156 | |
Weight(less bit) kg | 76.5 | 72.5 | 72.5 | 73 | |
External diameter mm | Φ125 | Φ125 | Φ125 | Φ125 | |
Bit shank | COP54 DHD350R | HD55C DHD350Q | SD5 | QL50 | |
Hole range(mm) | Φ135-155 | Φ135-155 | Φ135-155 | Φ135-155 | |
Connection thread | API 2Â 3/8"Reg | API 2Â 3/8"Reg | API 3Â 1/2"Reg | API 3Â 1/2"Reg | |
API 3Â 1/2"Reg | API 3Â 1/2"Reg | Â | Â | ||
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 25Hz | 25Hz | 25Hz | 25Hz | |
Recommended Rotation speed | 20-35r/min | 20-35r/min | 20-35r/min | 20-35r/min | |
Air consumption | 1.0Mpa | 9.0m3/min | 9.0m3/min | 9.0m3/min | 9.0m3/min |
1.8Mpa | 15.0m3/min | 15.0m3/min | 15.0m3/min | 15.0m3/min | |
2.4Mpa | 23.0m3/min | 23.0m3/min | 23.0m3/min | 23.0m3/min | |
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DTH hammer type | MHD65 | MSD6 | MQL6 | MHD85 | |
Length(less bit) mm | 1248 | 1261 | 1212 | 1492 | |
Weight(less bit) kg | 100 | 100 | 95 | 188 | |
External diameter mm | Φ142 | Φ142 | Φ146 | Φ180 | |
Bit shank | COP64 DHD360 | SD6 | QL60 | COP84 DHD380 | |
Hole range(mm) | Φ155-190 | Φ155-190 | Φ155-190 | Φ195-254 | |
Connection thread | API 3Â 1/2"Reg | API 3Â 1/2"Reg | API 3Â 1/2"Reg | API 4Â 1/2"Reg | |
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Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 23Hz | 23Hz | 23Hz | 20Hz | |
Recommended Rotation speed | 20-30r/min | 20-30r/min | 20-30r/min | 20-30r/min | |
Air consumption | 1.0Mpa | 10.0m3/min | 10.0m3/min | 10.0m3/min | 15.0m3/min |
1.8Mpa | 20.0m3/min | 20.0m3/min | 20.0m3/min | 26.0m3/min | |
2.4Mpa | 28.5m3/min | 28.5m3/min | 28.5m3 60Mn material Hot Rolling Ball have very good wear resistance and not broken, breakage is lower than 1%, and it have high impact value. Jinan Zhongwei 60Mn hot rolling ball have the advantage of large output, stable quality. Our 60Mn Hot Rolling Grinding Ball in the size ranging from 20mm to 60mm, which chemical composition: C:0.55-0.65, Si:0.17-0.37, Mn:0.7-1.0, Cr:≤0.25, P:<0.04, S:<0.04, and Hardness is 57 to 63HRC, mainly used to mining, cement plant and thermal power station. 60Mn Hot Rolling Grinding Ball Grinding Steel Ball,60Mn Grinding Steel Ball,60Mn Grinding Ball,60Mn Hot Rolling Grinding Ball Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd , https://www.cngrindingballs.com |