
Rossi
[NEW] EP Winch - Planetary Gearbox for Winches
The Rossi EP Winch is a groundbreaking planetary gearbox purpose-engineered for winch applications across marine, offshore, construction, and mining sectors. Its defining innovation—a compact rotating housing that mounts directly inside the winch drum—dramatically reduces overall equipment footprint and simplifies mechanical integration. Available in 5 sizes (030A–125A) with torque up to 125,000 Nm, the EP Winch is compatible with both electric and hydraulic motors and carries DNV Type Approval for marine applications. Key applications include tower crane hoisting winches, trawler winches, and hoisting winder machines. For winch OEMs and fleet operators, the EP Winch delivers space savings, easier installation and maintenance, and consistent high-speed performance in the harshest operating conditions.
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Rotating Housing Mounted Inside the Drum
The gearbox integrates directly into the winch drum, eliminating external gearboxes and reducing winch envelope dimensions.
Five Sizes with up to 125,000 Nm Torque
Scalable power range matches requirements from light-duty davits and small cranes to heavy trawler and tower crane winches.
Dual Motor Compatibility (Electric & Hydraulic)
The EP Winch adapts seamlessly to both electric and hydraulic prime movers, offering maximum design flexibility.
DNV Type Approved for Marine
Certified compliance with leading marine classification standards ensures immediate acceptance in offshore and shipboard applications.
High Allowable Operating Speeds
Optimized planetary gearing and bearing design permit very high winch drum speeds without compromising reliability.
Easy Installation & Simplified Maintenance
Modular, accessible architecture reduces rigging time during installation and simplifies scheduled maintenance tasks.
Why Rossi EP Winch is Transforming Winch Drivetrain Design
Traditional winch drivetrains require complex arrangements of external gearboxes, couplings, and support frames that consume valuable deck or platform space. The EP Winch solves these challenges by moving the gearbox inside the drum itself—a rotating-housing planetary design that shortens the drivetrain, reduces alignment issues, and lightens the overall structure. For marine architects and crane designers, this means more compact winch houses, reduced fabrication costs, and improved vessel stability. For maintenance crews, the modular design simplifies inspections and reduces mean time to repair.


EP Winch Applications Across Marine, Construction & Mining
The EP Winch series is engineered for a broad spectrum of lifting and pulling duties. In the marine sector, it drives trawler winches, mooring winches, and ship-to-shore hose-handling systems. Tower cranes and construction hoists benefit from its compact, high-speed capability. In mining, the EP Winch powers hoisting winders and shaft-sinking winches. Its sealed, high-torque-density design makes it equally at home on a highway-going truck crane or a permanent offshore platform, delivering consistent performance under dynamic, heavy-duty cycle conditions.