SK580 Series Kelly bar
580-3 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) | ||||||
| JS580-3×17 | 18310 | 18510 | 17050 | 48810 | 48410 | 15000 | 600 | 420 |
| JS580-3×18 | 19310 | 19510 | 18050 | 51810 | 51410 | 15800 | 600 | 420 |
| MZ580-3×19 | 20310 | 20510 | 19050 | 54940 | / | 16400 | 600 | / |
| MZ580-3×20 | 21310 | 21510 | 20050 | 57940 | / | 17200 | 600 | / |
580-4 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) | ||||||
| JS580-4×19 | 20270 | 20470 | 19050 | 72080 | 71580 | 19900 | 460 | 320 |
| JS580-4×20 | 21270 | 21470 | 20050 | 76080 | 75580 | 20850 | 460 | 320 |
| MZ580-4×18 | 19270 | 19470 | 18050 | 68360 | / | 18600 | 460 | / |
| MZ580-4×21 | 22270 | 22470 | 21050 | 80360 | / | 21300 | 460 | / |
580-5 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) | ||||||
| JS580-5×17.5 | 18780 | 18980 | 17550 | 82045 | 81445 | 20200 | 460 | 320 |
| JS580-5×20 | 21280 | 21480 | 20050 | 94545 | 93945 | 22700 | 460 | 320 |
| MZ580-5×20 | 21270 | 21470 | 20050 | 94955 | / | 22150 | 460 | / |
| MZ580-5×21 | 22270 | 22470 | 21050 | 99955 | / | 23150 | 460 | / |
580-6 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) | ||||||
| MZ580-6×16 | 17360 | 17560 | 16050 | 90015 | / | 18150 | 360 | / |
| MZ580-6×17 | 18360 | 18560 | 17050 | 96015 | / | 19150 | 360 | / |
| MZ580-6×19 | 20360 | 20560 | 19050 | 108015 | / | 21150 | 360 | / |
| MZ580-6×20 | 21360 | 21560 | 20050 | 114015 | / | 22150 | 360 | / |
※Other lengths and other drive stub dimensions on request; Weight tolerance ±5%.
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