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Specifications
4" inch dth Hammer:1.efficient energy transfer
2.faster drilling speed
3.lower oil consumption
4.longer life
4" inch Hydraulic Cop44/DHD340 rock drilling dth hammer:
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
It 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.
Style | Length | Weight | External | Bit Shank | Hole Range | Connection |
ND45/Cop44/DHD340 | 1030mm | 39.00Kg | 99mm | Cop44/ | 110- 135 | API 2 3/8"Reg
|
SD4 | 1084mm | 40.50Kg | 99mm | SD4 | 110-135 | API 2 3/8"Reg |
QL4 | 1097mm | 41.00Kg | 99mm | QL40 | 110-135 | API 2 3/8"Reg |
down the hole hammer | martillo de fondo | o martelo buraco | marteau fond de trou | Imlochhammer | martello | a lyukba kalapács | alasuppovasara | síos an poll casúr | ned i hullet hammer | ned i hullet hammer
down the hole bit | por el poco agujero | baixo o bit buraco | vers le bas le bit de trou | in das Loch Bit | il bit del foro | a lyukba bit | síos an poll giotán | ned i hullet bit | ned i hullet bit
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