High Air Pressure DTH Hammer Without Foot Valve - SD Series DTH
Hammer
SD Series DTH Hammer Without Foot Valve Model:
4'' - SD4 DTH Hammer
5'' - SD5 DTH Hammer
6'' - SD6DTH Hammer
8'' - SD8 DTH Hammer
10'' - SD10 DTH Hammer
12'' - SD12 DTH Hammer
SD (SD4 SD5 SD6 SD8 SD10 SD12) Series Series DTH Hammer Without
Foot Valve Structure and Specification:
| Description | Weight(kg) |
| SD4 | SD5 | SD6 | SD8 | SD10 | SD12 |
| 1.Top sub | 6.50 | 13.70 | 20.00 | 34.00 | 59.00 | 70.00 |
| 2. O-ring Of Top Sub | 0.01 | 0.015 | 0.015 | 0.015 | 0.03 | 0.04 |
| 3.Breakout Ring | - | - | - | 0.30 | 0.50 | 0.80 |
| 4.Check Valve | 0.35 | 0.70 | 0.70 | 1.20 | 1.40 | 2.00 |
| 5. Spring | 0.05 | 0.10 | 0.10 | 0.10 | 0.30 | 0.10 |
| 6. Air Distributor | 1.50 | 2.00 | 3.50 | 6.00 | 10.50 | 16.00 |
| 7. Internal cylinder | 2.10 | 2.80 | 4.20 | 6.50 | 12.50 | 25.00 |
| 8. Piston | 8.50 | 15.00 | 23.00 | 42.50 | 77.00 | 113.00 |
| 9. External Cylinder | 15.30 | 24.00 | 28.00 | 59.00 | 110.00 | 175.00 |
| 10. Guide sleeve | 1.30 | 2.60 | 2.50 | 6.00 | 11.50 | 25.00 |
| 11. O-ring Of Stop Ring | 0.005 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| 12. Stop Ring | 0.20 | 0.50 | 0.50 | 1.20 | 1.50 | 4.50 |
| 13. Breakout Ring | - | - | - | 0.30 | 0.50 | 0.80 |
| 14. Drive Chuck | 4.00 | 7.50 | 7.50 | 16.00 | 31.50 | 48.00 |
| 15. Drill Bit | 9.80 | 16.00 | 27.00 | 37.00 | 108.00 | 165.00 |
SD (SD4 SD5 SD6 SD8 SD10 SD12) Series DTH Hammer - Without Foot
Valve
Technical Parameter
| Technical Data |
| Model | SD4 | SD5 | SD6 | SD8 | SD10 | SD12 |
| Length (Without Bit) | 1012mm | 1090mm | 1182mm | 1330mm | 1525mm | 1860mm |
| Weight (Without Bit) | 40.00kg | 70.00kg | 90.00kg | 174.00kg | 316.00kg | 480.00kg |
| External Diameter | φ99mm | φ126mm | φ146mm | φ180mm, φ185mm | φ226mm | φ275mm |
| Bit Shank | SD4 | SD5 | SD6 | SD8 | SD10 | SD12 |
| Hole Range | φ110 - φ135mm | φ155- φ190mm | φ155 - φ203mm | φ195 - φ254mm | φ254 - φ311mm | φ305 - φ445mm |
| Connection Thread | API 2 3/8 '' Reg | API 2 3/8 '' Reg, API 3 1/2 '' Reg, API 2 7/8 '' Reg | API 3 1/2 '' Reg | API 4 1/2 '' Reg | API 6 5/8 '' Reg | API 6 5/8 '' Reg |
| Working Pressure | 1.2 - 2.0 Mpa | 1.3 - 2.3 Mpa | 1.5 - 2.5 Mpa | 1.5 - 3.0 Mpa | 2.0 - 3.5 Mpa | 2.0 - 3.5 Mpa |
| Impact Rate at 17 Bar | 30HZ | 28HZ | 25HZ | 22HZ | 20HZ | 20HZ |
| Recommended Rotation Speed | 25 - 40 r/min | 20 - 35 r/min | 20 - 30 r/min | 15 - 25 r/min | 20 - 35 r/min | 15 - 25 r/min |
| Air Consumption | 1.0Mpa: 6 m³/ min | 1.0Mpa: 7 m³/ min | 1.0Mpa: 9 m³/ min | 1.0Mpa: 12 m³/ min | 15 - 25 r/min | 1.0Mpa: 28 m³/ min |
| 1.8Mpa: 9 m³/ min | 1.8Mpa: 14 m³/ min | 1.8Mpa: 18 m³/ min | 1.8Mpa: 22 m³/ min | 1.8Mpa: 40 m³/ min | 1.8Mpa: 50 m³/ min |
| 2.4Mpa: 14 m³/ min | 2.4Mpa: 19 m³/ min | 2.4Mpa: 26 m³/ min | 2.4Mpa: 28 m³/ min | 2.4Mpa: 65 m³/ min | 2.4Mpa: 71 m³/ min |
The Characteristics of High Air Pressure DTH Hammers Without Foot
Valve:
It is a kind of high air pressure DTH hammer without foot valve,
and it is our newest design. It is also one of the most advanced
DTH hammers in the world.
High Air Pressure DTH Hammers Without Foot Valve Advantages:
1. Out of the trouble of foot valve fracture and expansion and
contraction.
2. Lower energy consumption and higher impact frequency.
The drilling speed is 15-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life span, easy and cheap
maintenance.
4. Lower air and oil consumption. The oil consumption is about 10%
lower than the one with foot valve.
Applications
- Blast hole
- Water well
- Environmental
- Exploration
- Construction
Available for all working conditions, high performance in
overburden and water well drilling projects
Rock Drilling Tools Brand MIROC®
The MIROC® Rock Drilling Tools product line by KSQ Technologies
(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 to mining, construction, tunneling, and quarrying projects
around the globe.
MIROC® Rock Drilling Tools include:
- Integral Rods
- Plug Hole Rods
- Tapered Drilling Tools
- Extension Drilling Tools
- Drifting and Tunneling Tools
- Reaming Tools
- Shank Rods
- Shank Adapters (Striking Bars)
- Down-the-hole (DTH) Bits
- Down-the-hole (DTH) Hammer
- PDC Bit
- Tricone Bits
Company
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.
Tag: SD (SD4 SD5 SD6 SD8 SD10 SD12) Series DTH Hammer,
down-the-hole rock drilling tools
