Rossi
EP King - High-Torque Planetary Gearbox
The Rossi EP King stands at the pinnacle of heavy-duty planetary gearbox design—a modular, high-torque solution purpose-built for the most unforgiving industrial environments. Where other gearboxes reach their limit, EP King thrives: delivering up to 3,000,000 Nm of torque in a compact, stiffened architecture that supports 2 to 6 reduction stages in both coaxial and right-angle configurations. Designed for sugar mills, heavy-lift cranes, mining crushers, and other applications demanding peak bearing capacity and lifelong reliability, EP King combines case-hardened external gears, nitride-steel internal gears, and Gleason ground spiral bevel gear pairs. The result is a cost-effective, high-efficiency drive system that reduces downtime in operations where failure is simply not an option.
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Trusted by Industry Leaders
Unrivaled Power
Up to 3,000,000 Nm Torque: Engineered for the world’s largest industrial machinery, EP King handles extreme rotational forces with a robust safety margin.
Configurable 2 to 6 Reduction Stages
Optimize gear ratio and footprint for specific heavy-lift, milling, or conveying duties without over-engineering the drivetrain.
Heavy-Duty Bearing System
Lower backlash, enhanced stiffness, and an improved lubrication system ensure reliability under constant shock loading.
Compatible with NEMA, IEC & Hydraulic Motors
A modular input interface accommodates diverse prime movers, simplifying system integration.
Compact, Reduced-Mass Architecture
High power density minimizes structural weight while maintaining industry-leading torque output for easier handling and installation.
Accessory-Rich Modular Platform
Wide range of hydraulic brakes, cooling options, and non-standard designs enable comprehensive customer-specific tailoring.
Why the EP King is the Preferred Choice for the Most Extreme Industrial Drives
Operations such as sugar cane milling, heavy lift cranes, and large rotary kilns subject gearboxes to punishing loads and continuous thermal stress. The EP King is designed from the ground up to endure these conditions: its oversized planetary carriers, advanced case-hardened steel gearing, and high-capacity lubrication system work in concert to deliver decade-spanning reliability. By partnering with Rossi, heavy-industry operators gain a customized, cost-optimized drive solution that maximizes productivity while minimizing the total lifecycle cost in environments where reliability translates directly into profitability.
Key Application Environments for High-Torque Planetary Drives
The EP King is deployed in the most demanding sectors of heavy industry. Typical installations include sugar mill rollers and diffusers, heavy-lift port cranes, large bucket-wheel excavators in mining, rotary kiln drives in cement plants, and heavy-duty marine mooring winches. It is also increasingly specified for large shredders in recycling and waste-to-energy plants, where shock loads and reversing operations require a drive with exceptional torsional stiffness and fatigue resistance.