KAT DRILLING
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Used in extension rod connection, its function is to transmit impact energy from the rock-drill piston, as well as rotation torque, into the drill string with no losses. It must withstand and transmit up to 6300 blows per minute from the piston continually, with great endurance and dependability.
Available Types: Coupling R25, Coupling R25/R32, Coupling R28/T38, Coupling R32, Coupling T38, etc.
| THREAD | LENGTH (L) | DIAMETER (D) | Weight | ||
|---|---|---|---|---|---|
| mm | In | mm | In | Kg | |
| COUPLINGS | |||||
| R22 | 140 | 5-1-2 | 30 | 1-3-16 | 0.45 |
| R25 | 150 | 5-29/32 | 33 | 1-5-16 | 0.5 |
| R25 | 150 | 5-29/32 | 35 | 1-3-8 | 0.52 |
| R28 | 150 | 5-29/32 | 39 | 1-17/32 | 0.6 |
| R32 | 150 | 5-29/32 | 42 | 1-21/32 | 0.9 |
| R32 | 150 | 5-29/32 | 44 | 1-23/32 | 0.95 |
| R38 | 170 | 6-11-16 | 55 | 2-5/32 | 1.75 |
| T38 | 190 | 7-1-2 | 52 | 2-3/64 | 1.6 |
| T38 | 190 | 7-1-2 | 55 | 2-5/32 | 1.95 |
| T45 | 210 | 8-1-4 | 63 | 2-15/32 | 2.75 |
| T45 HD | 210 | 8-1-4 | 66 | 2-19/32 | 3.2 |
| T51 | 225 | 8-7-8 | 72 | 2-13/16 | 3.85 |
| T51 HD | 225 | 8-7-8 | 76 | 3 | 4.68 |
| COUPLINGS - Full Bridge | |||||
| R25 | 200 | 7-7-8 | 35 | 1-3-8 | 0.8 |
| R28 | 160 | 6-5-16 | 39 | 1-17/32 | 0.7 |
| R32 | 200 | 7-7-8 | 44 | 1-23/32 | 1.5 |
| R32 | 300 | 11-13/16 | 44 | 1-23/32 | 2.6 |
| R38 | 210 | 8-1-4 | 55 | 2-5/32 | 2.6 |
| T38 | 205 | 8-1-16 | 55 | 2-5/32 | 2.31 |
| T45 | 230 | 9-1-16 | 63 | 2-15/32 | 3.5 |
| T51 | 250 | 9-13/16 | 72 | 2-13/16 | 5.3 |
| T51 | 250 | 9-13/16 | 76 | 3 | - |
