The winches model 4WNA and 4WFA are designed for permanent installation on a vehicle. They are able to withstand loads of up to 275 kg for measurements in holes from 1000 to 1800 meters deep. They can work with operating speeds of up to 90 m/min. They are equipped with electronic speed regulation, electronic load cell, automatic rewinding system in regular coils (hands-free) and emergency brake.
Specifications
| 4WNA | Max speed | Continuous max load | Instantaneous max load |
| Low speed | 9 m/min | 272 kg | 363 kg |
| High speed | 27 m/min | 113 kg | 136 kg |
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| 4WFA | Max speed | Continuous max load | Instantaneous max load |
| Low speed | 30 m/min | 272 kg | 363 kg |
| High speed | 90 m/min | 113 kg | 136 kg |
Insights
Further information can be found at:
http://mountsopris.com/items/4wna-truck-mount-winch/
User Manual: https://boreholelogging.app.box.com/s/g0x0t6pgby5cxlgadkcv28bt9rkv1863
Field manual: https://boreholelogging.app.box.com/s/igihxsj9rwwml4kgrgst8vofjg33wda2
