For over 60-years, RULMECA® Motorized Pulleys have offered conveyor belt operators and designers a compact, hermetically sealed, highly efficient (>97%) conveyor drive. The RULMECA® Conveyor Belt Drive is quick and easy-to-install, and requires almost no maintenance. As a sealed conveyor drum drive it resists the effects of abrasive dust, water, oil, grease, and other contaminants. These heavy-duty bulk solids conveyor drives are well suited for underground mines, barges, quarries, bulk terminals, sand & gravel, cement, salt, fertilizer, glass, and mineral processing plants.
The RULMECA® internally powered conveyor drum motors utilize a low-profile, space saving design that is quick and simple to install even in restricted areas. The Motor, Gear Drive and all moving parts are enclosed inside the Drum. There is no external motor, gear reducer, sprockets, chain, or OSHA required guarding — so no external maintenance is needed.
- Hermetically Sealed
The RULMECA® AC Squirrel-Cage Induction Motor and Gearbox are hermetically sealed within the oil-filled steel Shell, creating a highly reliable conveyor drive which requires little-to-no maintenance. Sealing the drivetrain within the pulley shell protects it from abrasive and corrosive environments. The Gearbox, Motor Bearings, and Support Bearings are automatically splash-lubricated. Since the Pulley Shaft is "dead" (non-rotating), there are no external pillow blocks to lubricate. Maintenance is reduced to changing gear oil every 10,000 operating hours or every 30,000 hours using synthetic gear oil.
- VFD Compatible
Motorized Pulleys are Variable Frequency Drive compatible. Various options enable them to drive inclined, reversing, articulating, and high-duty cycle conveyors. Each Motorized Pulley provides specific HP at fixed belt speeds within a particular Pulley diameter and face width. Variable Frequency Drives provide belt speed flexibility.
- Simple Mounting
RULMECA® Motorized Pulleys simplify conveyor drive mounting in challenging locations such as tail drives, dual drives, and center nest drives. To mount our Motorized Pulley, simply align the pulley, fasten four mounting bolts to the conveyor structure, and make the electrical connections.
- External Options
RULMECA® offers a choice in surface finishes (including stainless steel in some models), lagging (including rubber and ceramic), and sealing system (including standard and labyrinth seals), which further contribute to superior service life in abrasive, and wet or corrosive environments.
- Internal Options
RULMECA®'s optional Internal Mechanical Backstops and DC Brakes fit directly to the Motor Rotor Shaft. This gives them mechanical advantage (as high as 100:1) and protect them within our hermetically sealed environment.
- Broad Product Line
The RULMECA® Motorized Pulley offering includes nine (9) different diameters combining 0.33 to 330 HP motors with two- or three-stage Gearboxes in any face width. Plant operators and designers can find a single-drive or dual-drive RULMECA® Motorized Pulley package to meet virtually any application.
RULMECA® Motorized Pulleys are the smart alternative to conventional exposed conveyor drive pulleys.