Osculati Silenced Mooring Spring 480mm

Osculati Douglas Marine Silenced Spring is a mooring line tension damper/mooring bumper designed for installation in the mooring line between the vessel and the quay or buoy, engineered to significantly reduce jerks and noise during mooring operations caused by waves, tidal changes, and wind gusts. The “silenced spring” design is based on a progressively working elastic element that absorbs dynamic energy and limits stroke, protecting cleats, bollards, deck eyes, and the mooring line itself, while simultaneously eliminating the metallic noises typical of traditional springs. The 90x480 model is a variant with a larger body diameter and extended working stroke, selected for medium and larger recreational vessels where a higher damping reserve is required. Installation is simple: the damper is connected in series with the mooring line using appropriate shackles or bindings depending on the rope/chain ends, maintaining axial alignment and preventing twisting; periodic inspection of the elastic element and fittings is recommended. The product is used in marinas, inland and sea ports, at berths with residual wave motion, and on mooring buoys; it is suitable for bow and stern moorings as well as springs, reducing overloads and improving mooring comfort. The Osculati-branded version is produced in cooperation with Douglas Marine, a specialist in spring-type mooring accessories, ensuring compatibility with sailing and motorboat rigging as well as high operational quality and durability in marine conditions.

Technical specifications:

Manufacturer: Osculati

Trade name: Douglas Marine Silenced Spring

SKU (Osculati): 01.198.16

Size variant: 90x480

Purpose: Mooring line tension damper/mooring bumper for boats and yachts

Application: Bow/stern moorings/springs in marinas and on buoys

Installation method: Series connection in the mooring line using shackles/bindings

Operating range: Damping jerks caused by waves, tides, and gusts

Design: Elastic element with progressive characteristics (quiet operation)

Body material: Adapted for marine environment

Rope compatibility: Textile mooring lines; compatible with connectors/shackles

Installation location: Between deck eye/cleat and bollard/buoy

Maintenance: Periodic inspection of spring/elastic element and fittings

Product advantages:

- Reduces mooring jerks, protecting cleats, eyes, and hull components from overloads. - Quiet operation limits noise typical of classic metal mooring springs. - Progressive characteristics ensure effective energy absorption even at larger displacements. - Simple installation into existing mooring lines without modifying deck fittings. - Increases mooring comfort during residual wave motion, currents, and variable wind. - The 90x480 version offers greater working stroke and damping reserve for medium and larger vessels. - Resistance to marine conditions supports long service life in marinas and ports. - The Douglas Marine x Osculati collaboration guarantees a proven marine-class solution.

Additional information:

Manufacturer: Osculati

SKU: 01.198.16

Model/Series: Douglas Marine Silenced Spring

Installation note: Install axially in the mooring line; avoid twisting; use properly sized shackles and safeguards against accidental release

Service note: Periodically check wear of the elastic element and condition of fittings, especially after strong storms