Model NO.: DHD/QL/MISSION/SD/COP/CIR/BR
Colour: as Your Request
Size: 3′ 4′ 5′ 6′ 7′ 8′ 10′ 12′
Quality: 95% Closed to Atlas Ect.
Thread Size: API 2 3/8" Reg-6 5/8"Reg
Air Consumption: 0.5-2.4MPa
Shank Series: Cop, SD, DHD, Br, Ql, Mission, CIR
Sample: Yes
Trademark: MEGAROC
Transport Package: Wooden Box
Specification: 2 inch to 12 inch
Origin: Xiamen, Fujian, China

Product Description :

Dth Hammer Types:

Low air pressure: 0.5-0.7Mpa

Middle air pressure : 0.7-1.8Mpa

High air pressure:1.8-2.5Mpa

Parameter of Quarry rock stone mining drill hammer:

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 2 3/8" Reg. API 2 3/8"Reg API 2 3/8"Reg API 2 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   15.0m3/min 15.0m3/min 15.0m3/min
 
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 2 3/8"Reg API 2 3/8"Reg API 3 1/2"Reg API 3 1/2"Reg
API 3 1/2"Reg API 3 1/2"Reg    
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
 
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 3 1/2"Reg API 3 1/2"Reg API 3 1/2"Reg API 4 1/2"Reg
       
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

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