Brand Name: Kaishan
Minimum Order Quantity: 1 set
Packaging Details: Carton box/Wooden Case
Delivery Time: 7-10 days
Payment Terms: L/C, T/T, Western Union
Usage: Quarry, Mining, Water well drilling, Foundation piling, Tunneling ...
The down-the-hole dth hammer is a device that uses compressed air as a power source and uses the reciprocating motion of the piston in the hammer to impact the drill bit to break the rock. The down-the-hole dth hammer is a working device of the down-the-hole drill. According to the working pressure of the dth hammer, it can be divided into low-pressure dth hammer (working pressure is 0.5~0.7Mpa), medium-pressure dth hammer (0.7~1.2Mpa) and high-pressure dth hammer(above 1.2Mpa); according to the gas distribution method and structural characteristics of the dth hammer, it can be divided into valved and valveless types; according to the formation of the central through hole of the down-the-hole dth hammer, it can be divided into ordinary down-the-hole dth hammer and reverse circulation down-the-hole dth hammer.
Application :
It is widely used in large-scale open-pit and underground ore mining, anchoring engineering, quarrying and rock drilling, water well geothermal mining, construction engineering rock drilling and large-scale engineering construction, etc.
Features
1 The operating air pressure are between 0.5Mpa and 0.7Mpa
2 Valveless hammers.
3 Simple structure, easy to assemble and to disassemble, long life span.
4 Higher impact frequency and faster drilling speed.
5 Lower air consumption and lower oil consumption. A hole can be drilled on the check valve to provide more efficient cuttings discharge.
6 Especially suitable for quarrying.
TechnicalDate | ||||
Model | L2.5 | L3 | L30 | L40 |
Length (Without Bit) | 763mm | 797mm | 750mm | 835mm |
Weight(Without Bit) | 12kg | 20kg | 20kg | 30.8kg |
External Diameter | φ66mm | φ80mm | φ80mm | φ98mm |
Bit Shank | L2.5**CIR80 | L3**CIR90 | L3**CIR90 | L4**CIR110 |
Hole Range | φ68-φ88mm | φ90-φ110mm | φ90-φ110mm | φ110-φ150mm |
Connection Thread | 48x10 | 48x10 | 48x10 | API 2 3/8"REG |
Working Pressure | 0.5-0.7Mpa | 0.5-0.7Mpa | 0.5-0.7Mpa | 0.5-0.7Mpa |
Impact Rate at 17Bar | 15Hz | 15Hz | 15Hz | 14Hz |
Recommended Rotation Speed | 25-40 r/min | 25-40 r/min | 25-40 r/min | 25-40 r/min |
AirConsumption | 0.7Mpa:5m³/min | 0.7Mpa:8m³/min | 0.7Mpa:8m³/min | 0.7Mpa:11m³/min |