High Air Pressure DTH Hammer Without Foot Valve - COP/DHD Series
DTH Hammer
DTH Hammer Model:
3'' - IR 3.5 DTH Hammer
COP Series DTH Hammer
4'' - COP44 DTH Hammer
5'' - COP54 DTH Hammer
6'' - COP64 DTH Hammer
8'' - COP84 DTH Hammer
DHD Series DTH Hammer
4'' - DHD340 DTH Hammer
5'' - DHD350 DTH Hammer
6'' - DHD360 DTH Hammer
8'' - DHD380 DTH Hammer
12'' - DHD1120 DTH Hammer
DHD and COP Series DTH Hammer Without Foot Valve Structure and
Specification:
| Description | Weight(kg) |
| IR3.5 | COP44 /DHD340 | COP44 /DHD340 | COP54 /DHD350R | COP54 /DHD350R |
| 1.Top sub | 4.20 | 6.50 | 6.00 | 13.70 | 13.30 |
| 2. O-ring Of Top Sub | 0.01 | 0.01 | 0.01 | 0.015 | 0.015 |
| 3.Breakout Ring | - | - | - | - | - |
| 4.Check Valve | 0.20 | 0.35 | 0.30 | 0.70 | 0.70 |
| 5. Spring | 0.02 | 0.05 | 0.05 | 0.10 | 0.10 |
| 6. Air Distributor | 0.80 | 1.50 | 1.30 | 2.00 | 1.90 |
| 7. Internal cylinder | 1.30 | 2.10 | 1.90 | 2.80 | 2.70 |
| 8. Piston | 5.50 | 8.50 | 7.80 | 15.00 | 14.50 |
| 9. External Cylinder | 9.50 | 15.20 | 14.60 | 24.00 | 23.00 |
| 10. Guide sleeve | 1.00 | 1.30 | 1.20 | 2.60 | 2.50 |
| 11. O-ring Of Stop Ring | 0.05 | 0.01 | 0.005 | 0.01 | 0.01 |
| 12. Stop Ring | 0.15 | 0.30 | 0.20 | 0.50 | 0.50 |
| 13. Breakout Ring | - | - | - | - | - |
| 14. Drive Chuck | 1.90 | 3.40 | 3.40 | 6.50 | 6.20 |
| 15. Drill Bit | 5.00 | 9.00 | 8.50 | 16.00 | 15.50 |
| Description | Weight(kg) |
| DHD350Q | COP64 /DHD360 | COP64 /DHD360 | COP84 /DHD380 | DHD1120 |
| 1.Top sub | 13.70 | 20.00 | 23.00 | 34.00 | 70.00 |
| 2. O-ring Of Top Sub | 0.015 | 0.02 | 0.015 | 0.015 | 0.040 |
| 3.Breakout Ring | - | - | - | 0.30 | 0.80 |
| 4.Check Valve | 0.70 | 0.70 | 0.70 | 1.20 | 2.00 |
| 5. Spring | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 |
| 6. Air Distributor | 2.00 | 3.50 | 4.50 | 6.00 | 16.00 |
| 7. Internal cylinder | 2.80 | 4.20 | 6.50 | 6.50 | 25.00 |
| 8. Piston | 15.00 | 23.00 | 28.00 | 42.50 | 113.00 |
| 9. External Cylinder | 25.00 | 31.50 | 40.00 | 60.00 | 173.00 |
| 10. Guide sleeve | 3.20 | 6.50 | 7.50 | 5.30 | 24.00 |
| 11. O-ring Of Stop Ring | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| 12. Stop Ring | 0.50 | 0.60 | 0.80 | 1.20 | 4.00 |
| 13. Breakout Ring | - | - | - | 0.30 | 0.80 |
| 14. Drive Chuck | 4.00 | 6.00 | 8.00 | 17.50 | 46.00 |
| 15. Drill Bit | 15.90 | 26.00 | 28.50 | 40.00 | 140.00 |
DHD and COP Series DTH Hammer Without Foot Valve Technical
Parameters
| Technical Data |
| Model | IR3.5 | COP44 /DHD340 | COP44 /DHD340 | COP54 /DHD350R | COP54 /DHD350R |
| Length (Without Bit) | 888mm | 1011mm | 986mm | 1110mm | 1110mm |
| Weight (Without Bit) | 25.00kg | 43.20kg | 37.00kg | 69.00kg | 66.00kg |
| External Diameter | φ82mm | φ99mm | φ92mm | φ126mm | φ116mm |
| Bit Shank | IR3.5 | COP44 /DHD340 | COP44 /DHD340 | COP54 /DHD350R | COP54 /DHD350R |
| Hole Range | φ90 - φ115mm | φ110 - φ135mm | φ105 - φ120mm | φ135 - φ155mm | φ127 - φ145mm |
| Connection Thread | API 2 3/8 '' Reg | API 2 3/8 '' Reg | API 2 3/8 '' Reg | API 2 3/8 '' Reg, API 3 1/2 '' Reg, API 2 7/8 '' Reg, API 2 7/8 ''
IF | API 2 3/8 '' Reg, API 3 1/2 '' Reg, API 2 7/8 '' Reg |
| Working Pressure | 1.0 - 1.5 Mpa | 1.2 - 2.0 Mpa | 1.2 - 2.0 Mpa | 1.3 - 2.3 Mpa | 1.3 - 2.3 Mpa |
| Impact Rate at 17 Bar | 25HZ | 30HZ | 30HZ | 28HZ | 28HZ |
| Recommended Rotation Speed | 25 - 40 r/min | 22 - 35 r/min | 25 - 40 r/min | 20 - 35 r/min | 20 - 35 r/min |
| Air Consumption | 1.0Mpa: 3.8 m³/ min | 1.0Mpa: 6 m³/ min | 1.8Mpa: 8 m³/ min | 1.0Mpa: 7 m³/ min | 1.0Mpa: 7 m³/ min |
| 1.5Mpa: 7.5 m³/ min | 1.8Mpa: 10 m³/ min | 2.4Mpa: 13 m³/ min | 1.8Mpa: 14 m³/ min | 1.8Mpa: 13.5 m³/ min |
| 2.4Mpa: 15 m³/ min | | 2.4Mpa: 19 m³/ min | 2.4Mpa: 18 m³/ min |
| Technical Data |
| Model | DHD350Q | COP64 /DHD360 | COP64 /DHD360 | COP84 /DHD380 | DHD1120 |
| Length (Without Bit) | 1102mm | 1238mm | 1258mm | 1359mm | 1880mm |
| Weight (Without Bit) | 68.00kg | 98.00kg | 120.00kg | 175.00kg | 474.00kg |
| External Diameter | φ126mm | φ142mm, φ146mm | φ165mm | φ180mm, φ185mm | φ275mm |
| Bit Shank | ND55C /DHD350Q | COP64 /DHD360 | COP64 /DHD360 | COP84 /DHD380 | DHD1120 |
| Hole Range | φ135 - φ155mm | φ155 - φ203mm | φ175 - φ216mm | φ195 - φ254mm | φ305 - φ445mm |
| Connection Thread | API 2 3/8 '' Reg, API 3 1/2 '' Reg, API 2 7/8 '' Reg | API 3 1/2 '' Reg | API 3 1/2 '' Reg | API 4 1/2 '' Reg | API 6 5/8 '' Reg |
| Working Pressure | 1.3 - 2.3 Mpa | 1.5 - 3.0 Mpa | 1.5 - 3.0 Mpa | 1.5 - 3.0 Mpa | 2.0 - 3.5 Mpa |
| Impact Rate at 17 Bar | 28HZ | 25HZ | 23HZ | 22HZ | 20HZ |
| Recommended Rotation Speed | 20 - 35 r/min | 20 - 30 r/min | 20 - 30 r/min | 15 - 25 r/min | 15 - 25 r/min |
| Air Consumption | 1.0Mpa: 8 m³/ min | 1.0Mpa: 9 m³/ min | 1.0Mpa: 11 m³/ min | 1.0Mpa: 12 m³/ min | 1.0Mpa: 28 m³/ min |
| 1.8Mpa: 14 m³/ min | 1.8Mpa: 18 m³/ min | 1.8Mpa: 20 m³/ min | 1.8Mpa: 22 m³/ min | 1.8Mpa: 50 m³/ min |
| 2.4Mpa: 19 m³/ min | 2.4Mpa: 26 m³/ min | 2.4Mpa: 28 m³/ min | 2.4Mpa: 28 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.
DHD and COP Series DTH Hammers Features:
1. Valveless air distribution, more reliable.
2. The simple design of the piston. Long life span.
3. More efficient energy transfer, faster drilling speed, low air
consumption, and lower oil consumption.
4. Fewer internal parts, simple structure, long life span, less
failure and easier to maintain because all the parts are heat
treated.
5. Easy to disassemble because the top sub, the drive chuck, and
the external cylinder are connected by multiple steps thread.
DHD / COP Series DTH Hammers Advantages:
1. Simple and reasonable design, easy to assemble and dis-assemble,
low problem rate.
2. Low air consumption, smooth drilling, maximum impact power, high
penetration rate.
3. Multiple precise heat-treatment with all hammer parts to provide
long lifespan under roughest working conditions.
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.
