SK299 Series Kelly bar
299-3 Series Kelly bar
| Kelly bar type | A （mm) |
B （mm) |
D （mm) |
C （mm) |
C1 （mm) |
Theoretical weight | Rated torque | Rated pressure |
| (kg) | (kNm) | (kN) | ||||||
| JS299-3×6 | 7240 | 7410 | 6050 | 17230 | 16830 | 2550 | 160 | 110 |
| JS299-3×7 | 8240 | 8410 | 7050 | 20230 | 19830 | 2850 | 160 | 110 |
| MZ299-3×6 | 7240 | 7410 | 6050 | 17330 | / | 2450 | 160 | / |
| MZ299-3×7 | 8240 | 8410 | 7050 | 20330 | / | 2750 | 160 | / |
299-4 Series Kelly bar
| Kelly bar type | A （mm) |
B （mm) |
D （mm) |
C （mm) |
C1 （mm) |
Theoretical weight | Rated torque | Rated pressure |
| (kg) | (kNm) | (kN) | ||||||
| JS299-4×6 | 7240 | 7410 | 6050 | 22820 | 22320 | 2450 | 100 | 70 |
| JS299-4×7 | 8240 | 8410 | 7050 | 26820 | 26320 | 2750 | 100 | 70 |
| MZ299-4×6 | 7240 | 7410 | 6050 | 22840 | / | 2350 | 100 | / |
| MZ299-4×7 | 8240 | 8410 | 7050 | 26840 | / | 2650 | 100 | / |
※Other lengths and other drive stub dimensions on request; Weight tolerance ±5%.
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