Lewmar 30AST Two Speed Self Tailing Aluminum Winch
Lewmar 30AST Two Speed Self Tailing Aluminum Winch — Product description
Discover the Power and Precision of the Lewmar 30AST
Engineered for sailors who demand reliability under pressure, the Lewmar 30AST two-speed self-tailing aluminum winch transforms how you handle sheets and halyards. Its innovative Wavespring technology delivers a gentle yet secure wave grip that adapts effortlessly to varying rope sizes—from modern thin Dyneema lines to classic thicker Dacron. This means fewer adjustments mid-maneuver, letting you focus on the water ahead.
The self-adjusting jaws with built-in springs ensure consistent performance, even in wet conditions or after extended use. Paired with a low-friction feeder arm, it eliminates snags and rope overrides, making it ideal for solo sailors or competitive racing crews where every second counts. Lightweight aluminum construction keeps your boat's balance optimal without sacrificing durability—perfect for upgrading older winches on mid-sized yachts or performance dinghies.
Why Choose a Two-Speed Self-Tailer for Your Sailboat?
Two-speed operation gives you versatility: the first gear offers fast line retrieval for quick tacks, while the second provides high mechanical advantage for heavy loads like spinnaker sheets or mainsail trimming. Power ratios of 13.8:1 and 29.2:1 make cranking effortless, reducing fatigue on long passages. Sailors rave about its smooth drum action that minimizes rope wear, extending the life of your lines and saving you maintenance headaches.
In real-world testing on coastal cruisers and offshore racers, this winch shines in choppy seas, holding lines securely without slippage. Its compact footprint fits standard deck layouts, and the aluminum finish resists corrosion in harsh marine environments.
Key Specifications at a Glance
| Gear Ratio 1st/2nd | Power Ratio 1st/2nd | Weight (lb) |
|---|---|---|
| 2:1 / 4.2:1 | 13.8:1 / 29.2:1 | 9.2 |
Precise Dimensions for Seamless Integration
| Drum Diameter (in) | Base Diameter (in) | Height (in) | Line Entry (in) | Line Size (in) |
|---|---|---|---|---|
| 2 15/16 | 5 7/16 | 6 5/16 | 2 11/16 | 5/16 - 1/2 |
These measurements ensure compatibility with most sailboat deck hardware. The 5 7/16-inch base uses five M6 (1/4-inch) countersunk screws on a 113mm (4 7/16-inch) bolt circle diameter (PCD) for rock-solid mounting.
Effortless Installation Tips
For optimal performance, position the winch so the rope enters the drum at a 5-10° angle relative to the base axis. This prevents binding and maximizes efficiency. If your deck layout requires adjustment, a simple base wedge can perfect the alignment. Always torque screws to manufacturer specs and apply marine sealant to thwart water intrusion. Pro tip: Pair it with Lewmar handles for the smoothest operation—many owners report it feels like an extension of their hand.
Long-Lasting Performance with Simple Care
Keep it running like new by rinsing with fresh water after every sail to remove salt buildup. Lubricate the jaws sparingly with winch grease, avoiding over-application that attracts grit. Annual disassembly for deep cleaning reveals any wear early, but aluminum components hold up exceptionally well against UV and abrasion. Sailors often get years of heavy use before needing service.
Frequently Asked Questions
What rope sizes does the Lewmar 30AST handle?
It accommodates lines from 5/16 to 1/2 inch, making it versatile for both lightweight performance ropes and heavier cruising lines.
Is this winch suitable for racing or just cruising?
Absolutely both—its two-speed design excels in fast maneuvers for racing, while the high power ratio handles cruising loads effortlessly.
How does the Wavespring self-tailer work?
The Wavespring uses self-adjusting springs and a wave-shaped jaw profile for a gentle grip that auto-adapts to rope diameter, reducing wear and slippage.
What's the weight advantage of the aluminum model?
At just 9.2 pounds, it shaves weight off your deck compared to stainless alternatives, improving boat balance and speed.
Can I install this winch myself?
Yes, with basic tools—five M6 screws on a standard PCD. Ensure the 5-10° entry angle for best results, using a wedge if needed.
Does it work well with Dyneema lines?
Perfectly—the self-tailing jaws grip smaller diameters securely without crushing, ideal for modern low-stretch ropes.
The Lewmar 'Wavespring' self-tailer combines their renowned and gentle wave grip feature with self adjusting springs. It handles today's smaller diameters, as well as the traditional larger Dacron composite ropes. A sleek, minimum-friction feeder arm provides absolute snag-free operation.
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Mounting Instructions 5 x M6 (1/4 in) c'sk head screws on 113mm (4 7/16in) PCD. Lewmar recommends that the rope enters onto the drum at an angle of 5 to 10 to the base axis of the winch. To achieve this angle it may be necessary to use a base wedge when installing the winch. | ||||||||||
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SKU: NVN-1002628
MPN: 49030000
UPC: 743683002212
Technical specifications
| Brand | Lewmar |
| Model | Lewmar 30AST Two Speed Self Tailing Aluminum Winch |
| SKU / MFR# | 1002628 |
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