The housing is manufactured of marine grade cast aluminum and protected from corrosion by an oven baked paint. All stainless steel parts are insulated from the aluminum housing by a special process. All stainless steel screws are treated with anti-corrosion compound. The gears and transmission are precisely machined to tolerances which result in especially silent operation. The inner gearing is housed in an oil bath and is lubricated for life.
Gear ratio is designed to maximize rotation speed there by providing fast reefing.
The furling mechanism is self locking. A winch handle socket at the rear of the housing allows instant manual operation in case of power failure. The change from electric to manual is automatic. System uses same extrusions and anti-wrap stop as the standard Profurl. Other 42 and 52 series Profurls except the R42 can be converted to electric.