Originating from customer feedback asking for a lighter windlass, Lewmar developed the CPX range of lightweight vertical windlasses to complement their popular all stainless steel V-Series.
CPX windlasses feature the tried and tested V-Series worm-wheel gearbox architecture and use quality materials throughout - hard anodized aluminum for the base and strong cast stainless steel for the gypsy top cap and chain pipe cover.

Suitable for most boats from 33 to 42 ft in length
15% lighter than comparable all-stainless windlasses
For rope, chain, or combination rodes (3-strand or 8-plait rope required)
Available in low profile gypsy only or gypsy/capstan models
Modern architecture with fewer parts for increased reliability
Motor can be rotated to any of seven positions for easier installation
Designed for easier servicing
Stainless steel top cap, gypsy and chain pipe with alloy base
Worm-gear driven for ultimate reliability and safety
Typical deck thickness is 1-1/2" to 2" supplement thinner decks with a suitable backing plate, if necessary; an optional extended shaft version is available for thicker decks by special order
IP68 motor gearbox (suitable for continuous immersion) is available by special order
Optional Manual Recovery Adapter is sold separately (#66840054 for gypsy only model; #66840056 for gypsy/drum model)
12 volt motor is standard; 24 volt models available by special order
Note that G4, G40, G43, and High Test (HT) chains are equivalent for sizing purposes

What's in the box: windlass, mounting gasket and studs, up/down rocker switch, a dual direction solenoid (contactor), and a circuit breaker

Is one of these windlasses a good choice for your boat? You can use the recommended typical boat lengths provided or, for a more rigorous determination, take the total weight of your ground tackle (anchor + rode) and multiply by 4. The maximum pull capability of the windlass should be at least as large as the resulting number.