Coupling
Coupling is used for connecting shank adapter and extension drill rod together, or for connecting two extension rod together.
Besides normal equal couplings, we also offer reducing couplings that are able for changing thread type and size.
The couplings we offer can be applied for our top hammer drilling system, suitable for drilling duties in tunneling, construction, mining, quarrying, etc.
Features
- Premium steel as material, precision CNC for manufacturing, accuracy and reliability assured;
- High transmission efficiency grants high drilling efficiency for the drilling system.
- Thread type: R25, R28, R32, R38, T38, T45, T51
- Diameter: 35mm, 40mm, 45mm, 55mm, 63mm, 66mm, 72mm, 76mm
- Length: 150mm, 155mm, 170mm, 180mm , 180mm, 190mm, 210mm , 235mm
- Coupling type:
A: Half coupling, full coupling
B: Equal coupling, reducing coupling
| Coupling sleeve | |||||||
| Thread | Diameter | Length | Part Number | Weight | |||
| A | B | mm | inch | mm | inch | Kg | |
| R25 | R32 | 45 | 13/4 | 170 | 657/64 | CPR25R32L170D45 | 1.1 |
| R28 | R32 | 45 | 13/4 | 170 | 657/64 | CPR28R32L170D45 | 0.96 |
| R32 | R38 | 55 | 25/32 | 180 | 71/8 | CPR32R38L180D55 | 1.86 |
| R32 | T38 | 55 | 25/32 | 180 | 71/8 | CPR32T38L180D55 | 2.1 |
| R38 | T38 | 55 | 25/32 | 190 | 733/64 | CPR38T38L190D55 | 1.86 |
| R25 | 35 | 119/50 | 150 | 59/10 | CPR25L150D35 | 0.72 | |
| R28 | 40 | 129/50 | 155 | 61/10 | CPR28L155D40 | 0.95 | |
| R32 | 45 | 13/4 | 170 | 657/64 | CPR32L170D45 | 1.32 | |
| R38 | 55 | 25/32 | 170 | 657/64 | CPR38L170D55 | 1.71 | |
| T38 | 55 | 25/32 | 190 | 733/64 | CPT38L190D55 | 1.96 | |
| T45 | 63 | 215/32 | 210 | 817/64 | CPT45L210D63 | 3.12 | |
| T45 | 66 | 219/32 | 210 | 817/64 | CPT45L210D66 | 3.51 | |
| T51 | 72 | 27/8 | 235 | 91/4 | CPT51L235D72 | 5.22 | |
| T51 | 76 | 3 | 235 | 91/4 | CPT51L235D76 | 5.75 | |
Get in Touch
Sinodrills is an international market-oriented enterprise specialized in manufacturing and supplying rock drilling tools. Relying on two manufacturing facilities, we supply a wide variety of rock drills, including top-hammer drilling, down the hole drilling, self-drilling anchors, rag bits. In virtue of reliable quality, competitive pricing, professional and valuable service, we now have grown to be a leading drilling equipment manufacturer in China. When it comes to premium quality rock drilling tools, you need to look no further than Sinodrills. Our drilling products are top-of-the-line. Our goal is to offer you the best hole quality, the most meters drilled per hour, and the lowest production cost possible. We have all the rock tools expertise to offer you the best possible drilling performance.
