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DTH Hammer
Product Detailed
DTH hammer
1.Valveless hammers
2.Higher impact frequency and faster drilling speed
3.Lower energy consumption
The Characteristics Of High Air Pressure DTH Hammer
Our high pressure dth hammer has the following advantages:
Valveless air distribution. More reliable.Simple design of the piston, long life.More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption. Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.JSN120A DTH Hammer Technical Data
Length (Less bit) | Weight (Less bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
1880mm | 475.00kg | Φ275mm | NUMA120 | Φ305-Φ445 | API6 5/8”Reg | ||
Working Pressure | Impact rate at 1.7Mpa | Recommended rotation speed | Air consumption | ||||
1.0Mpa | 1.8Mpa | 2.4Mpa | |||||
1.0-2.5Mpa | 20HZ | 15-25r/min | 28m³/min | 50m³/min | 71m³/min | ||