QL40 DTH hammer with low-mid air pressure for quarry drilling
QL40 DTH hammers are designed to operate effciently at low air
pressures and medium air pressures,using QL series bits. 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.
Lengtgh (Without bit) | Weight (Without bit) | External diameter | Bit Shank | Hole Range | Connection Thread (Top sub- drill pipe) |
| 1103mm | 42.6kg | ɸ99mm | QL40 | ɸ110mm-ɸ130mm | API 2 3/8" Reg |
| Working Pressure | Impact rate at 14bar (reference) | Speed recommended | Pull force recommended | Reference Air consumption(m3/min) |
| 10-25Bar | 28Hz | 30-70rpm | 8.0kN | 14Bar | 17.2Bar | 20.7Bar | 24Bar |
| 7.4 | 9.8 | 12.3 | 15.0 |
Main Features:
1.The operating air pressure are between 10Mpa and 25Mpa.
2.Valveless hammers.
3.Simple structure,easy to assemble and to disassemble,long life
span.
4.Higher impact frequency and faster drilling speed.
5.Higher air consumption and higher oil consumption. A hole can be drilled on the check valve to
provide more efficient cuttings discharge.
6.Especially suitable for quarrying.
7.Bit without foot valve
Packing:
High Air Pressure DTH hammers(3''-12'') we can offer:
1.ND(DHD Shank) series high air pressure DTH hammer
includes:DHD3.5,DHD340,DHD350R,DHD360,DHD380,DHD1120
2.QL series high air pressure DTH hammer
includes:QL40,QL50,QL60,QL80
3.SD series high air pressure DTH hammer
includes:SD4,SD5,SD6,SD8,SD10,SD12
4.NUMA series high air pressure DTH hammer
includes:NUMA100,NUMA120,NUMA125
5.COP series high air pressure DTH hammer
includes:COP44,COP54,COP64,COP84
Connect Thread : API 2 3/8" , API 3 1/2 , Reg-6 5/8"Reg etc.
Company Information:
The MIROC® Rock Drilling Tools product line by KSQ Tecnologies
(Beijing) Co.Ltd. is the result of years of advanced engineering,
precision manufacturing,and dedication to the use of high quality
materials.MIROC® Rock Drilling Tools are used by many drilling
professionals related tomining, construction, tunneling, and
quarrying projects around the globe.
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical
know-how in development, production, and application. The company
has adopted advanced manufacturing processes to ensure high quality
steels and tungsten carbide inserts for its rock drilling
accessories. Its personnel understand clients’ drilling needs, and
have the service skills to recommend the right drilling tools for
the job. Its experienced product developers can also create custom
tools. Furthermore, the company’s development team introduces
innovative products each year – tools that are rigorously tested in
the field and proven to perform beyond industry expectations.
MIROC® Rock Drilling Tools include:
Top Hammer Drilling Tools
Down-the-hole (DTH) Drilling Tools
PDC Bits
Tricone Bits
