YM Hydraulic Cathead
YM hydraulic cathead is suitable to tighten or loosen joint by cooperating with Manual Tong. Its pull may be adjusted as needed. YM cathead has its series. There are four selections of pull: 5t, 8t, 10t, 16t. It is designed and manufactured according to API Spec 8A "Specification for Drilling and Production Hoisting Equipment".
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technical specification:
| Model | YM-5 | YM-8 | YM-10 | YM-16 | |
| Pressure rating | Mpa | 16 | 16 | 16 | 16 |
| psi | 2320 | 2320 | 2320 | 2320 | |
| Flow rating | L/min | 120 | 120 | 120 | 120 |
| gpm | 31.7 | 31.7 | 31.7 | 31.7 | |
| Nominal stroke | mm | 1700 | 1400 | 1650 | 1620 |
| in | 67 | 55 | 65 | 64 | |
| Pull rating | kN | 50 | 80 | 100 | 160 |
| US ton | 5.5 | 8.8 | 11 | 17.6 | |
| Size | mm | 2232×1172×650 | 2280×1280×650 | 2342×1280×650 | 2450×270×650 |
| in | 88×46×26 | 90×50×26 | 92×50×26 | 96×63×26 | |
| Weight | kg | 288 | 305 | 345 | 420 |
| lb | 635 | 673 | 761 | 926 | |
