DTH hammers
Product feature
With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.
Polish&Drill
+Product introduction
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe
Specification
DTH hammer type | HD35 | HD45 | HSD4 | HQL4 | |
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 | HD55 | HD55C | HSD5 | HQL5 | |
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 | HD65 | HSD6 | HQL6 | HD85 | |
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/min | 34.0m3/min |
DTH hammer type | HSD8 | HQL8 | HSD10 | HN100 | |
Length(less bit) mm | 1463 | 1465 | 1502 | 1510 | |
Weight(less bit) kg | 192 | 182 | 290 | 288 | |
External diameter mm | Φ180 | Φ180 | Φ226 | Φ226 | |
Bit shank | SD8 | QL80 | SD10 | NUMA100 | |
Hole range(mm) | Φ195-254 | Φ195-254 | Φ254-311 | Φ254-311 | |
Connection thread | API 4 1/2"Reg | API 4 1/2"Reg | API 4 1/2"Reg | API 6 5/8"Reg | |
API 6 5/8"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 | 20Hz | 20Hz | 18Hz | 18Hz | |
Recommended Rotation speed | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | |
Air consumption | 1.0Mpa | 15.0m3/min | 15.0m3/min | 22.0m3/min | 22.0m3/min |
1.8Mpa | 26.0m3/min | 26.0m3/min | 40.0m3/min | 45.0m3/min | |
2.4Mpa | 34.0m3/min | 34.0m3/min | 55.0m3/min | 60.0m3/min |
DTH hammer type | HD1120 | HSD12 | HN120 | NH125 | |
Length(less bit) mm | 1900 | 1880 | 1900 | 1900 | |
Weight(less bit) kg | 480 | 487 | 485 | 480 | |
External diameter mm | Φ275 | Φ275 | Φ275 | Φ275 | |
Bit shank | DHD1120 | SD12 | NUMA120 | NUMA125 | |
Hole range(mm) | Φ305-445 | Φ305-445 | Φ305-445 | Φ305-445 | |
Connection thread | API 6 5/8"Reg | API 6 5/8"Reg | API 6 5/8"Reg | API 6 5/8"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 | 16Hz | 16Hz | 16Hz | 16Hz | |
Recommended Rotation speed | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | |
Air consumption | 1.0Mpa | 30.0m3/min | 30.0m3/min | 30.0m3/min | 30.0m3/min |
1.8Mpa | 56.0m3/min | 56.0m3/min | 56.0m3/min | 56.0m3/min | |
2.4Mpa | 78.0m3/min | 78.0m3/min | 78.0m3/min | 78.0m3/min |