12 inch DTH Hammer SD12 high productivity in water well drilling project
Hammer Products
With the MIROC DTH hammers, we offer most complete down-the-hole drilling solutions. The offering covers hammer sizes from 3 to 12 inches, and drill bits, drill pipes and accessories with different characteristics and functions.
12 inch hammer is characterized by high performance and high penetration rates-or, in other words, high productivity.
Product Description
In DTH hammers, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH hammers a nearly constant penetration rate regardless of hole length
| Product Structure | Part Description | Weight(Kg) | Part Number |
| 
| 1 Top Sub | 34.6 | SD12-01 |
| 2 "O" Ring of Top Sub | 0.02 | SD12-02 |
| 3 Breakout Ring of Top sub | 0.35 | SD12-03 |
| 4 Check Vavle | 0.90 | SD12-04 |
| 5 Spring | 0.10 | SD12-05 |
| 6 Air Distributor | 6.40 | SD12-06 |
| 7 Internal Cylinder | 6.30 | SD12-07 |
| 8 Piston | 41.5 | SD12-08 |
| 9 ExternalCylinder | 65.5 | SD12-09 |
| 10 Retaining Ring | 0.60 | SD12-10 |
| 11 "O" Ring of Stop Ring | 0.02 | SD12-11 |
| 12 Stop Ring | 1.20 | SD12-12 |
| 13 Guided Sleeve | 5.00 | SD12-13 |
| 14 Breakout Ring of Drive Chuck | 0.35 | SD12-14 |
| 15 Drive Chuck | 13.60 | SD12-15 |
| 16 Drill bit | | SD12-16 |
| Products features: Valveless air distribution hammer,more reliable, Good sealability, no water and cutting enterring inti hammer in water exists drilling.
Application: Available for all working conditions,high perfomance in overburden and water well drilling project. |
| Lengtgh
(Without bit) | Weight
(Without bit) | External diameter | Bit Shank | Hole Range | Connection Thread (Top sub- drill pipe) |
| 1680mm | 526kg | ɸ275mm | SD12 | ɸ305-ɸ445mm | API 6 5/8" REG |
| Working Pressure | Impact rate at 14bar (reference) | Speed recommended | Pull force recommended | Reference Air consumption(m3/min) |
| 10-25Bar | 18Hz | 15-35rpm | 28kN | 14Bar | 17.2Bar | 20.7Bar | 24Bar |
| 36.6 | 50.7 | 55.6 | 60.6 |
Main Features:
1.The operating air pressure are between 20Mpa and 30Mpa.
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.
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 Bit
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