CIR90 DTH Hammer with low air pressure 0.5-0.7MPa
Specification:
- standard type, no foot valve
- length: 800mm
- external diameter: 80mm,
- drilling hole range: 85mm-110mm,
- working pressure: 0.5-0.7MPa,
- air consumption: 0.7MPa 8m³/min
- weight: around 20kg
| Drilling Diameter(mm) |
Hammer Length(mm) |
External Diameter(mm) |
Weight(kg) |
| φ85-φ110 |
800(without bit) |
80 |
20(without bit) |
| Working Pressure(Mpa) |
Air Consumption(m³/min): 0.7Mpa: 8m³/min |
| 0.5-0.7 |
Bit Shank |
CIR 90 |
General Introduction:
Superdrill DTH hammers are all simple structure, easy to assemble and disassemble, as well as reliable quality and long service life. Superdrill has various hammer models suitable to drill holes from 64mm to 1000 mm (2-1/2” ~ 39-3/8”) in diameter; and come with three kind: low pressure (5 ~ 7 bars), middle pressure (7 ~ 15 bar) and high pressure (7~ 30 bars).
Superdrill DTH hammers mainly be produced with shank type of DHD, QL, SF, COP, Mission, SD, BR, CIR series, Diameter ranging from 2” to 8” for mining and quarrying, and 6” to 32” for water-well drilling, oil-well drilling and foundation and so on.
DTH Hammer Selection:
Choosing the right hammer is largely determined by drill machines (mainly compressor output), drilling hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for compressed air to flush cuttings and clean the hole.
The optimum range of hole size for blast-hole drilling with DTH method is 90~254 mm (3-1/2” ~ 10”) with 3.5 ~ 8” hammers. Smaller blast holes are generally drilled with top-hammer tools, while larger holes typically with Rotary Drilling Tools. In other applications, like foundation drilling, DTH hammers can be used in hole size up to 1,000 mm (39-3/8”).
Usually, the smallest hole diameter a DTH hammer can drill is its nominal size, for example, a 4” hammer would drill a 4” (100/102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole diameter reduces, airflow is restricted. Maximum hole size for production drilling is the nominal hammer size plus 1”for 5” and smaller hammers and plus 2 for 6” and bigger hammers, for example, for a 4” hammer the maximum hole size is 5” (127/130mm) while for a 8” hammer the maximum hole size is 10” (254mm).
Whatsapp/Phone:+86 18186993613
E-mail: [email protected]
|
DTH hammer
|
Weight (kg)
|
External Diameter (mm)
|
Connection thread
|
Hole rang (mm)
|
Impact rate
|
Recommended rotation speed
|
|
|
|
Quality level:98% similarity to COP/SD/MISSION/QL/BR/DHD etc famous brand
|
|
|
Series:COP/ SD/ DHD/ IR/ Mission/ QL/ BR/ CIR etc
|
|
|
Low air pressure DTH hammer CIR type
|
5 ~22
|
50~180
|
CIR**
|
55~200
|
820 rpm
|
|
|
|
Middle air pressure BR & COP type
|
10~30
|
70~110
|
|
85~115
|
|
|
|
|
3 inch DTH hammer
COP34/QL30 etc
|
24.5
|
81
|
API 2 3/8” Reg
|
90~110
|
28Hz (at 17 bar)
|
28 r/min
|
|
|
4 inch DTH hammer
COP44/DHD340 etc
|
39.2
|
99
|
API 2 3/8” Reg
|
110~150
|
27Hz (at 17 bar)
|
25~40 r/min
|
|
|
5 inch DTH hammer
COP54/Mission50 etc
|
71.5
|
125
|
API 2 3/8” or API 3 1/2” Reg
|
135~165
|
25Hz (at 17 bar)
|
20~30 r/min
|
|
|
6 inch DTH hammer
COP64/QL60 etc
|
98
|
142
|
API 3 1/2” Reg
|
152~216
|
23Hz (at 17 bar)
|
15~25 r/min
|
|
|
8 inch DTH hammer
COP84/SD8 etc
|
188
|
180
|
API 4 1/2” Reg
|
203~305
|
20Hz (at 17 bar)
|
15~20 r/min
|
|
CIR90-DTH-hammer
