R25 R28 R32 R38 T38 T45 T51 Drill Coupling For Top Hammer Drilling
R25 R28 R32 R38 T38 T45 T51 coupling sleeve for top hammer drilling
Threaded coupling sleeve are made of high quality of alloy steels and CNC machining guarantee our reliable and consistent quality control of coupling sleeves.Both semi-bridge and full-bridge coupling sleeves are manufactured by us in different sizes as below:Thread sizes: R22, R25, R28, R32, R35, R38, T38, T45, T51;
Two catagories: Standard coupling sleeves, adapter(crossover) coupling sleeves;
| Coupling sleeve | ||||||
| Thread | Diameter | Length | Weight | |||
| A | B | mm | inch | mm | inch | Kg |
| R25 | R32 | 45 | 13/4 | 170 | 657/64 | 1.10 |
| R28 | R32 | 45 | 13/4 | 170 | 657/64 | 0.96 |
| R32 | R38 | 55 | 25/32 | 180 | 71/8 | 1.86 |
| R32 | T38 | 55 | 25/32 | 180 | 71/8 | 2.10 |
| R38 | T38 | 55 | 25/32 | 190 | 733/64 | 1.86 |
| R25 | 35 | 119/50 | 150 | 59/10 | 0.72 | |
| R28 | 40 | 129/50 | 155 | 61/10 | 0.95 | |
| R32 | 45 | 13/4 | 170 | 657/64 | 1.32 | |
| R38 | 55 | 25/32 | 170 | 657/64 | 1.71 | |
| T38 | 55 | 25/32 | 190 | 733/64 | 1.96 | |
| T45 | 63 | 215/32 | 210 | 817/64 | 3.12 | |
| T45 | 66 | 219/32 | 210 | 817/64 | 3.51 | |
| T51 | 72 | 27/8 | 235 | 91/4 | 5.22 | |
| T51 | 76 | 3 | 235 | 91/4 | 5.75 | |
About us
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ Tecnologies (Beijing) Co. Ltd.
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 and Ground Support 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) Hammers
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.