Anchor Windlasses

What Is an Anchor Windlass?

A windlass is a type of powered anchor winch that uses a calibrated gypsy drum to handle chain rode at a controlled rate. The gypsy is precision-made to match a specific chain diameter — it grips each link cleanly as the chain feeds in or out, preventing slip and chain damage under load. Windlasses are typically fitted to larger vessels where the anchor, chain and rode weight is substantial, and where reliable, repeatable anchor handling is a genuine safety and comfort priority.

If you're looking for a broader range of electric winch options for smaller boats or mixed rope-and-chain setups, the full boat anchor winch range covers compact electric units alongside windlass options.

Horizontal vs Vertical Windlass

The choice between horizontal and vertical layouts comes down to your vessel's bow deck space and forepeak arrangement below.

Horizontal Windlass

A horizontal windlass mounts flat on the deck with the motor, gypsy and drum assembly all visible above the deck surface. Chain feeds horizontally across the gypsy and drops through a chain pipe into the locker below. The low-profile layout suits vessels where below-deck forepeak space is limited, and the above-deck motor position makes servicing and inspection straightforward.

Vertical Windlass

A vertical windlass has its motor mounted below deck, with only the gypsy and capstan drum sitting above the deck plate. This gives a cleaner bow appearance and keeps the main motor housing away from spray, but requires accessible below-deck space in the forepeak for the motor housing and wiring. Both formats are available in different electrical configurations depending on the model — higher voltage systems can suit larger vessels with heavier chain loads and longer cable runs. Check product specifications for the voltage configuration of the windlass you are considering.

Matching Chain Size to Your Gypsy

Chain compatibility is the most critical specification check when buying a windlass. The gypsy drum is precision-calibrated to grip a specific chain diameter and link profile — using the wrong chain size will cause slipping, jamming or chain damage that can fail at the worst possible moment. Common chain sizes on Australian cruising vessels include 6mm, 8mm and 10mm, with the appropriate size depending on vessel displacement, anchor weight and typical anchoring depth.

Always confirm the chain size specification for your chosen windlass before purchasing chain. Our anchor chain and shackles range lists chain grades and sizes to help you match your system. For anchor options to complete the rode setup, browse our boat anchors range.

Installation Considerations

A windlass installation involves deck-level structural work and electrical wiring that need to be planned together before drilling or ordering parts. Key points to address:

• The mounting surface should be solid and reinforced — fibreglass, aluminium and timber decks all require appropriate backing plates rated for the load
• The chain pipe or hawse pipe should align closely with the chain locker below
• Cable sizing, fuse rating and circuit breaker selection need to match the windlass's peak current draw and the cable run length — follow the manufacturer's wiring guide exactly
• On higher-voltage installations, confirm the battery bank and charging system are configured for the correct voltage before connecting — check product specifications and follow the manufacturer's installation instructions

If replacing an existing windlass, check whether the new unit shares the same deck footprint and chain pipe position — this can simplify the job considerably.