Q355B Steel LBS Grooved Drum Left- or Right-Handed 80° Epoxy Primer Coated Offshore Main Winch Drum

Q355B Steel LBS Grooved Drum Left- or Right-Handed 80° Epoxy Primer Coated Offshore Main Winch Drum Description

This Lebus groove winch drum is precision-engineered as a complete drum for 46 mm wire rope applications. Manufactured from Q355B alloy steel, the drum features a right-handed or left-handed 80° lead angle with a pitch of 48.5 mm and 16.5 groove turns, achieving an overall length of 800 mm. The groove geometry incorporates an 80°–100°–80° transition pattern, ensuring smooth rope entry and controlled multi-layer spooling. The drum receives an epoxy primer coating for corrosion protection in marine and offshore environments. Precision machining eliminates burrs and sharp edges, protecting the wire rope from abrasive damage during operation. Designed as a one-piece welded construction with integrated flanges, this drum delivers structural integrity for demanding lifting applications.

Q355B Steel LBS Grooved Drum Left- or Right-Handed 80° Epoxy Primer Coated Offshore Main Winch Drum Parameters

Q355B Steel LBS Grooved Drum Left- or Right-Handed 80° Epoxy Primer Coated Offshore Main Winch Drum Features

This winch drum is constructed from Q355B low-alloy high-strength steel, providing exceptional yield strength and impact resistance for heavy-load operations. The 48.5 mm pitch provides optimal clearance relative to the 46 mm rope diameter, minimizing friction and heat generation. An epoxy primer coating is applied to the finished drum surface, delivering corrosion resistance suitable for saltwater exposure and outdoor industrial environments. All edges are deburred during final processing, eliminating sharp contact points that could compromise rope integrity.

Q355B Steel LBS Grooved Drum Left- or Right-Handed 80° Epoxy Primer Coated Offshore Main Winch Drum Application

This Lebus groove winch drum is purpose-built for main winch systems on offshore vessels, shipboard cranes, anchor handling equipment, and industrial hoisting applications requiring 46 mm wire rope. The availability of both left-handed and right-handed groove orientations accommodates diverse winch configurations across Korean, European, and Asian marine equipment. The epoxy primer coating makes it particularly suitable for deck-mounted installations exposed to salt spray, humidity, and harsh weather conditions.

Typical deployments include offshore supply vessel winches, tugboat towing winches, and heavy-lift crane hoist drums. For OEMs, shipyards, and marine equipment operators seeking a durable, corrosion-resistant winch drum with precision Lebus groove geometry, this assembly delivers reliable performance in demanding operational environments.