Tungsten Carbide Rock 114mm Retrievable Symmetric Casing System DTH Hammer Bit
The Symmetric/Concentric drilling system is designed to drill and case a hole simultaneously through unstable ground conditions. The driver bit incorporated with a satisficial ring or reusable ring makes a full face head design which significantly improves the penetration rate and hole straightness of drilling. The internal flushing grooves together with the built-in casing shoes gives a good seal to the button of the drilling hole, and thus minimizing the disruption of the surrounding of the drill hole.
Application Range: It is suitable for drilling water wells , geothermal wells , short miscopies ,medium mini-type grouting hole of building , dam and harbor project .
1. Ring bit and casing shoe assembly is welded to casing prior to drilling. Lock the assembly into pilot bit with hammer. The pilot bit's upper shoulder engages the shoulder of the casing shoe.
2. Hammer's percussive energy is transferred through the pilot and ring bits, crushing rock . Part of impact energy advances casing.
3. On completion of drilling and casing , the drill string with pilot bit is retrieved by a slight reverse rotation to unlock the bayonet coupling . The ring bit stays in the hole , and can be recovered only if the casing is retrieved
4. Drilling continues to the desired depth in the bedrock using a conventional drilling
Specification
| Outer Dia. of
Casing Tube | Inner Dia. of
Casing Tube | Reamed Dia. | Min. Inner Dia. of
Casing Shoe | Drill Pipes | Max. Outer Dia. of
Normal Bit |
| mm | Mm | mm | mm | mm | mm |
| 108 | 93-99 | 118 | 86 | 76 | 77 |
| 114 | 101-103 | 127 | 91 | 76 | 82 |
| 127 | 114-116 | 136 | 101 | 76 | 92 |
| 140 | 124-127 | 152 | 117 | 76 | 105 |
| 146 | 127-132 | 154 | 117 | 76 | 105 |
| 168 | 149-155 | 184 | 140 | 76,89 | 125 |
| 178 | 159-165 | 194 | 150 | 76,89 | 140 |
| 193 | 173-180 | 206 | 164 | 89,114 | 150 |
| 219 | 199-206 | 234 | 184 | 89,114 | 165 |
| 244 | 224-231 | 260 | 210 | 114 | 190 |
| 273 | 251-257 | 305 | 240 | 114,127 | 220 |
| 323 | 301-310 | 348 | 284 | 127 | 255 |
| 406 | 382-388 | 440 | 364 | 140 | 340 |
| 457 | 433-439 | 488 | 413 | 140 | 385 |
| 508 | 484-490 | 538 | 464 | 140 | 440 |
Our Factory
KSQ Technologies (Beijing) Co. Ltd
KSQ Technologies (Beijing) Co. Ltd. has significant experience and
know-how in the supply of materials, components, finished goods,
specially designed/engineered equipment, and services from China.
The company caters to medium to large scale clients who are doing
projects and capital expansion, as well as to firms who require
support with consumable products, maintenance, and repair
operations.
Our operations are based on the unique expertise of our people and
knowledge with customer processes. Our portfolio includes:
- Consumables used in the mining and construction industries
- Equipment used in the mining and construction industries
- Spare parts used for the equipment we sell for the mining and
construction industries
- Green technologies, such as products that reduce electric
consumption or use alternate sources of energy (solar, wind, etc.)
KSQ Technologies (Beijing) Co. Ltd. is a company that shall cater
to the needs of the construction and mining industries, with
consideration on providing solutions to the following unique
problems:
- Hazardous environment
- Acts, regulations, and other government guidelines that has to be
followed
- Significant differences in the way people work, mostly due o
physical constraints
- Avoiding downtime on major equipment which can cost tens of
thousands of dollars per hour. The best solution with the most
reasonable cost is a significant driver.
Covering markets worldwide, KSQ Technologies (Beijing) Co. Ltd. is
distinct due to its business missions:
- Provide high quality and cost effective products that enhance the
way people work and do things
- Provide economic benefits to its customers, from the products sold
down to the level of service given
- Consistency at every detail
- Continuous innovation on products and management practices
- Sharing of success
KSQ is guided by the following values:
- Never let profit get in the way of doing what is right for the
customer
- Give customers a good, fair deal
- Always forge enduring relationships
- Always look for ways to make it easier for customers to do business
with us
- Communicate with customers - they know better especially in real
application
- Candor and dignity - at all times!
- Count the blessings - never forget to thank customers for their
valued business!
