RA2018010000 - Andersen 18 ST FS Self-Tailing Manual Single Speed Winch - Full Stainless

18 ST FS Self-Tailing Manual Single Speed Winch - Full Stainless

Power Rib™

ANDERSEN Winches feature the Power Rib™. Unlike other winches with abrasive drum surfaces, ANDERSEN winch drums have vertical ribs running up the surface. This combined with the smooth polished stainless steel gives a maximum grip and minimum wear on ropes, reducing the replacements costs of sheets and halyards. What’s more, the Power Rib principle simply makes sailing more pleasurable. Fewer turns on the winch make tacking easier. Sheets can be gently eased out without harsh snatching and the risks of overrides and jammed sheets are significantly reduced. The grip provided by the ribs will remain the same year after year, unlike many other winches with an abrasive or sandpaper-like surface. Such surfaces have a tendency to wear down both ropes and themselves.

Power Ratio

Power Ratio is the mechanical advantage of the winch and is calculated as follows:

length of handle x gear ratio 
          radius of drum

The pull of the winch is based on the Power Ratio and not just on the physical size of the winch or the diameter of the drum. The Power Ratio is used to determine the load the winch may handle as follows: pull of handle (kg x Power Ratio = pull of winch (kg).

This means that by applying a load of 10kg, using a 10" standard handle, on a Power Ratio 40:1 winch, the winch can pull 400kg, assuming that the winch is 100% efficient. This is not possible in practice as the efficiency is reduced by internal mechanical friction losses.

Specifications:

• Drum Ø D: 2-3/4"
• Base Ø B: 4-3/4"
• Height H: 5-1/4"
• Line Entry L: 1-15/16"
• Line Size: 1/8-11/16"
• Weight: 7.0lb
• Gear ratio 1st speed: 2.6 : 1
• Power ratio 1st speed: 18.8 :1

The ANDERSEN 18 ST FS Self-Tailing Manual Single Speed Winch, part number RA2018010000, is a full stainless steel winch designed for marine applications. This unit is suitable for businesses managing or outfitting vessels that require reliable rope handling. It features a self-tailing mechanism and a single-speed operation, simplifying line management during maneuvers. The winch incorporates the Power Rib� drum design, which utilizes vertical ribs and a polished stainless steel surface to provide consistent grip while minimizing wear on ropes. This design aims to reduce the frequency of rope replacements and mitigate issues like overrides or jammed sheets. With a 1st speed gear ratio of 2.6:1 and a power ratio of 18.8:1, it offers mechanical advantage for pulling lines. This product addresses the need for durable and efficient rope handling hardware in demanding marine environments, contributing to operational longevity and reduced maintenance.