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KRPAN 2 x 8 EH / 2 x 10 EH
WINCH ADVANTAGES:
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large tractive force even when the reel is fully wound (favourable empty and full reel tractive force ratio)
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KRPAN 2x8EH double-reel winch has been awarded the gold award at the AGRA Agricultural Fair (Gornja Radgona) and a silver guild award at the International Trade Fair (MOS) in Celje in 2009.
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The differential gear enables 98% drive efficiency which requires a substantially lesser tractor power and enables smaller fuel consumption, lower CO2 emission, and better efficiency.
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If we consider today’s low prices of wood, this purchase should prove to be a bargain since the investment on the winch should be repaid in less than four years, thanks to the revolutionary differential drive.
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A self-pulling hydraulic pulley will also be available; it has already been fitted to KRPAN single-reel winches for 3 years and represents a breakthrough in the field. Below you will find a comparison of a conventional screw drive, and the new KRPAN differential-driven winch.
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For a 8t (80kN) winch, a lower power of 4.1kW (5.6HP) is required – consequentially, the fuel consumption decreases by €1.30/h.
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If the winch was operational 8h daily and 220 days/year, the investment on the winch would be repaid, due to the decreased fuel consumption or better performance, in a period of five years or 8,800 working hours.
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WINCH COMPARISON
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With differential
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With screw
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Winch tractive force (kN)
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80
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Traction speed (m/s)
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0,326
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Working motor rotations (RPM)
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1600
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Drive shaft rotations (RPM)
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420
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Specific fuel consumption (g/kWh)
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225
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Fuel density (g/l)
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0,83
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Price of fuel on 8th November 2010 (€/l)
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1,172
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Drive efficiency (differential/screw)
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0,98
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0,85
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Difference in required winch power (kW)
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26,6
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30,7
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Difference in required drive power (kW)
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- 4,1
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Fuel consumption (l/h)
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7,21
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8,32
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Fuel price (€/h)
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8,45
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9,75
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Consumption difference (€/h)
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- 1,30
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Number of years
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5
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year
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Number of annual workdays
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220
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day
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Hours per day
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8
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h/day
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Number of hours
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8800
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h
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RETURN ON INVESTMENT
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€ 11,440.00
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(excluding VAT)
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back
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