Rossi
EPS Series - Planetary Slewing Drives
The Rossi EPS Series is a premium range of planetary slewing drives designed for applications requiring precise, high-torque rotary motion with exceptional overturning-moment capacity. Derived from Rossi’s proven EP planetary gearbox platform, these slewing drives deliver output torques from 9 kNm to 400 kNm across ten primary frame sizes, with three reinforced output-support configurations (S, R, H) to match specific bearing and mounting requirements. The modular, multi-optional architecture allows OEMs to specify hydraulic, electric, or other input drives while benefiting from an improved internal lubrication system that extends service life. Typical deployment includes mining and construction machinery (crane turrets, excavator platforms), marine deck equipment, solar tracking systems, and wind turbine yaw drives—anywhere heavy loads must be rotated smoothly, accurately, and reliably.
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Wide Torque Spectrum (9 kNm to 400 kNm)
Ten modular sizes provide a scalable solution for light positioning tasks up to heavy-duty crane and excavator slewing.
Three Reinforced Output Configurations (S, R, H)
Select dual-pilot compact (S), dual-pilot flanged (R), or single-pilot front flanged (H) supports for optimal load distribution.
Proven Planetary Gearbox Heritage
Built on the EP series modular architecture, ensuring reliable, high-efficiency gear reduction with low backlash.
Improved Lubrication System
An optimized internal oil circulation design extends operating life and reduces maintenance frequency, even under continuous slewing duty.
Wide Ratio Range (12.5 to 2,800)
Fine-tune rotational speed and positioning accuracy to meet specific application requirements.
Multi-Prime-Mover Compatibility
Accepts hydraulic motors, IEC/NEMA electric motors, or other input drives for seamless integration into diverse machine designs.
Why Specify Rossi EPS Slewing Drives for Your Rotating Machinery
Rotating heavy masses with precision and reliability demands a slewing drive engineered for the task—not an adapted standard gearbox. The EPS Series provides a dedicated, self-contained solution with integrated bearing supports that absorb large overturning moments without transferring excessive loads to the machine frame. For crane and excavator OEMs, this translates into simplified turret design, reduced fabrication costs, and faster assembly. End-users benefit from smooth, low-backlash rotation that enhances machine controllability, operator comfort, and overall safety.
Diverse Applications of Rossi Planetary Slewing Drives
Rossi EPS slewing drives are found in applications spanning multiple industries. In construction and mining, they rotate crane superstructures, excavator platforms, and drilling rig masts. Marine and offshore installations use them for deck crane rotation, gangway positioning, and pipe-laying guide systems. Renewable energy applications include solar tracker drives and wind turbine nacelle yaw control. Water and wastewater plants deploy them for clarifier bridge drives and scum removal mechanisms. The modular EPS design ensures a reliable, high-performance slewing solution for virtually any heavy rotating equipment.