Maxwell RC12/10 Capstan Windlass 12V for 3/8" Chain, 3/4" Rope
Maxwell RC12/10 Capstan Windlass 12V for 3/8" Chain, 3/4" Rope — Product description
Maxwell's RC12/10 is the capstan-drum version of the RC12 series automatic rope/chain windlass, sized for 3/8" short-link chain and 5/8" to 3/4" three-strand or 8-plait rope. Below-deck 12V motor, 2500 lb max pull, and a fluted stainless capstan drum that doubles as a working winch for fenders, lines, or kedge.
The RC12/10 is the capstan-drum sibling of the low-profile RC12 windlass, built for boats running 3/8" (10mm) short-link chain over 5/8" to 3/4" three-strand or 8-plait rope. It's a vertical setup with the 1200-watt motor mounted below deck and the chainwheel, stripper, pressure arm, and fluted capstan drum sitting above. The above-deck height is 9.25" with the motor offset 10.75" below, giving you room to plumb a chain locker and a tidy deck appearance. The whole thing weighs 44 pounds and accepts deck thicknesses up to 4" through Maxwell's spacer-tube installation system.
Maximum pull is 2500 pounds with a chain retrieval rate of 79 feet per minute and rope at 65 feet per minute. Those numbers put the RC12/10 squarely in the 35-to-50-foot cruising-boat range, where you're working with a 60-to-80-pound anchor, 200-plus feet of rode, and you want enough power to break a deep-set hook in the canyons without screaming the breakers. The 75:1 gearbox ratio is single-stage, which Maxwell points out runs quieter and has fewer moving parts than the dual-stage gearboxes you'll find on competing windlasses at this size.
The capstan-drum difference is the working answer to a question most cruisers don't ask until they need it. With the low-profile RC12 you've got chainwheel-only operation, and that's fine for raising the anchor. With the RC12/10 capstan version you've got a second working surface above the chainwheel. A fluted stainless drum you can wrap a dock line around to warp the boat onto a slip, take strain off a stern line in a crosswind, or even kedge off a sandbar. It's not a primary sheet winch, but for any non-anchor heavy pull at the bow, the capstan is a real tool. The drum and the rest of the topworks are 316 marine-grade stainless steel.
Two features under the cosmetic top matter for long-haul reliability. The first is the cone-type brake and clutch. Cone clutches engage progressively, not in the on/off snap of a dog clutch, which means free-fall anchoring is smooth and stoppable. You drop the anchor under control with the chain stopper, not with the motor. The second is Maxwell's Active Latch Ratchet System, which lets you manually retrieve the anchor with the supplied handle if you've lost 12V power. The latch prevents backwind during the recovery stroke, so you're not fighting the windlass between handle strokes. Combined with the hard-anodized black gearbox housing that's more corrosion-resistant than the older cast bodies, the RC12/10 is built to be serviceable on the boat without pulling the whole unit.
Two install notes are worth flagging. First, the through-deck hawse pipe throat is generous, but it does want a chain locker depth of 12" or more below the chainpipe cover for the rode to coil cleanly. If your locker is shallow you'll need to add a deflector or accept that the chain will pile up against the cover and eventually jam. Second, the 1200-watt 12V draw is real. Maxwell calls for a 100-amp circuit breaker and 1/0 AWG cable from the house bank for runs up to 25 feet one-way. Undersize the wiring and you'll see the motor stall under load even though the windlass is mechanically fine. If you're upgrading from a smaller windlass, plan on running new cable.
One other thing worth knowing about the RC series compared to Maxwell's older Freedom and HRC windlasses is the Wave Design chainwheel. The chainwheel pockets aren't simple slots cut to match the chain pitch, they're shaped so the chain seats and releases more cleanly during retrieval, which reduces the chatter you sometimes get when a link binds against the stripper. In practice you notice it most when you're coming back to anchor in light wind and the chain hangs straight down under the bow. With the wave-design pockets you get less jolt as the chain transitions over the wheel and into the locker, which makes for a quieter retrieval and less stress on the chain stopper above. Combined with the single-stage gearbox and the cone clutch, the RC12/10 ends up being one of the smoother automatic windlasses in this size class, and for owners who anchor out a lot, the difference between a quiet windlass and a loud one matters every night you set the hook.
Key Features
- Vertical capstan-drum windlass, 12V, 1200W motor, 2500 lb max pull
- Sized for 3/8" (10mm) short-link chain and 5/8" to 3/4" three-strand or 8-plait rope
- 79 feet/min chain retrieval, 65 feet/min rope retrieval
- Cone-type brake and clutch for smooth free-fall anchoring under control
- Wave Design chainwheel reduces wear and improves rope-to-chain transition
- Active Latch Ratchet System for emergency manual retrieval (handle included)
- 75:1 single-stage gearbox, quieter and fewer moving parts than dual-stage designs
- Fluted 316 stainless capstan drum doubles as a working winch for dock lines or kedge
- Above-deck 9.25", below-deck 10", motor offset 10.75", weight 44 lb
- Hard-anodized black gearbox housing for corrosion resistance and serviceability
Why Buy from NVN Marine
- Authorized Maxwell reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Anchor size, rode length, locker depth, and circuit-breaker sizing all matter on a windlass install. Send us your boat's specs and current anchor setup and we'll confirm the RC12/10 is the right size before you commit to the install.
Technical specifications
| Title | Maxwell RC12/10 12V Capstan Windlass for 3/8" Chain and 3/4" Rope |
|---|---|
| Manufacturer Part Number | RC1210CAP12V |
| Brand | Maxwell |
| UPC | 9414761118316 |
| Mount Type | Vertical, below-deck motor, with capstan |
| Voltage | 12V DC |
| Motor Power | 1200 watts |
| Maximum Pull | 2500 pounds |
| Chain Size | 3/8" (10mm) short-link |
| Rope Size | 5/8" to 3/4" three-strand or 8-plait |
| Chain Retrieval Rate | 79 feet per minute |
| Rope Retrieval Rate | 65 feet per minute |
| Gearbox Ratio | 75:1 single-stage |
| Above-Deck Height | 9.25 inches |
| Below-Deck Depth | 10 inches |
| Motor Offset | 10.75 inches |
| Maximum Deck Thickness | 4 inches |
| Weight | 44 pounds |
| Topworks Material | 316 marine-grade stainless steel |
| Gearbox Housing | Hard-anodized aluminum |
| Clutch Type | Cone-type brake/clutch with free-fall capability |
| Manual Retrieval | Active Latch Ratchet System with included handle |
Frequently asked questions
What's the difference between the RC12/10 capstan and the low-profile RC12?
Same internals and same chain/rope ratings. The capstan version adds a fluted stainless drum above the chainwheel that you can wrap a line around as a working winch. The low-profile version is chainwheel-only and sits closer to the deck for a cleaner look. If you ever need to warp the boat onto a slip or kedge off a sandbar, the capstan pays for itself.
Will it handle 1/2" chain?
No. The RC12/10 is built around 3/8" (10mm) short-link chain. For 1/2" (12mm or 13mm) chain you want the RC12/12 (RC1212CAP12V), which is the next size up in the same series.
What size anchor and boat is this windlass right for?
Maxwell positions the RC12 series for 35-to-50-foot cruising boats with anchors in the 60-to-80-pound range. That's the sweet spot for the 2500 lb pull rating and the 3/8" chain spec. Larger boats with heavier anchors should look at the RC12/12 or the bigger HRC series.
How deep does my chain locker need to be?
Plan on 12 inches of free fall below the chainpipe cover at a minimum so the chain coils cleanly. Less than that and you'll get pile-up against the cover, which eventually jams the rode. If you're locker-limited, a chain deflector helps but won't fully solve a shallow locker.
What circuit breaker and cable size does it need?
Maxwell calls for a 100-amp breaker on the windlass circuit and 1/0 AWG cable from the house bank for runs up to about 25 feet one-way. Longer runs go to 2/0. Undersize the cable and the motor will stall under load even though the windlass itself is fine.
Can I free-fall the anchor with this windlass?
Yes. The cone-type clutch releases the chainwheel from the gear train so the anchor falls under its own weight. Cone clutches engage progressively rather than snapping on or off, which is why Maxwell uses them. You stop the fall with the chain stopper, not the motor.
What if I lose 12V power at the bow?
Maxwell supplies a manual retrieval handle. The Active Latch Ratchet System holds the chainwheel between handle strokes so you don't backwind during recovery. It's slow but it works, and it's the right answer when your house bank is dead and you need to weigh anchor.
How thick of a deck will it mount through?
Up to 4 inches. Maxwell's spacer tube system lets you set the gap between the above-deck and below-deck halves to match your deck. Most fiberglass cruisers are well under that limit. If your deck is cored, plan on bedding the deckplate properly and using backing plates under the through-bolts.
Is the topworks 316 stainless?
Yes. Deckplate, chainpipe cover, pressure arm, stripper, chainwheel, and the capstan drum itself are all 316 marine-grade stainless. The gearbox housing below decks is hard-anodized aluminum for weight and corrosion resistance.
Can the capstan be used as a primary sheet winch?
No. The fluted drum is a working capstan for non-load-bearing line-handling at the bow: dock lines, fender lines, light kedge work. It's not designed for the cyclic loads of sailing winches and you'd burn out the windlass motor running it that way.
What's the warranty?
Maxwell windlasses carry a 3-year limited warranty on the major mechanical components. Coverage details are in the box. We're happy to walk you through the warranty terms before you order if you want.
