T51 Length 225 Long Hole Drilling Drill Pipe Coupling Sleeves
Introduction of coupling sleeves:
Coupling sleeve for Extension Drill Rod connection.High quality of
alloy steels and CNC machining guarantee our reliable and
consistent quality control of coupling sleeves
when using rock drills with male shank adapters and a conventional
drifter rod, a coupling is required to join the adapter to the rod,
ensuring the ends touch for efficient energy transmission.
Coupling sleeves are also used to connect several rods to each
other in the same way. Coupling sleeves have a middle stop to
prevent over-threading on to the drill rod.
Specifications:
| Coupling | Length | Diameter | Weight, kg |
| mm | foot | mm | inch |
| Coupling T51 | 225 | 8 7/8 | 71 | 2 51/64 | 4.6 |
| 225 | 8 7/8 | 76 | 3 | 4.8 |
| 235 | 9 1/4 | 72 | 2 7/8 | 4.7 |
| 235 | 9 1/4 | 77 | 3 1/32 | 4.9 |
Standard coupling using T51 thread system. Used in benching and
long hole drilling.
Applications
• Underground Mining
• Widely used in drifting and tunneling
• Used in small hole drilling.
Competitive Advantage
High strength chromium-molybdenum steel with high fatigue strength
and excellent wear resistance
Couplings are used to well connect the shank adapter to the drill
rods or well contact two extension rods for transmitting energy. It
has standard type coupling and crossover coupling.
Processing: CNC milling and proprietary heat treatment process
Threaded Drilling Tools T51
Package: Carton or Wooden Box; also we can follow customers' requirements.
Delivery time is around 15-25 days.
MIROC® Production:
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) Hammers
P.S. We can design and manufacture products according to customers’
requirements.
Company Information:
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.
KSQ Technologies (Beijing) Co. Ltd.
Elisa Zarovkina (Елизавета)
