Unlike conventional drive systems, motorized pulleys have no chains or V-belts to tighten or replace, no sprockets to align, clean or lubricate, no bearings to grease, and doesn't require chain guards that need replacing.
A motorized pulley is a drum motor in which the body rotates around a stationary shaft. The rotating outer drum becomes the traction surface that powers the conveyor belt.
Electric power leads pass through the stationary shaft to motor terminals inside the pulley housing. Since the end shaft does not rotate, there is no need for slip rings to deliver electrical power to the motor windings.
INCREASE OPERATOR SAFETY
All external moving parts such as gearbox, chains, motor, chain guard and pillow block bearings that present safety hazards are eliminated.
ENHANCE SPACE UTILIZATION
Low profile of the drum motor results in a streamline appearance and allows to fit more belt conveyor into less floor or overhead space. Allows higher density and multiple applications.
LOWER ENERGY & OPERATING COSTS
Van der Graaf drum motors operate at 96% mechanical efficient resulting in lower operating cost compared to conventional drives. The higher efficiency of the internal drive can result in energy savings of up to 30% over conventional exposed-drive conveyors.
View/Download - Energy & Cost Savings Analysis
REDUCE NOISE LEVELS
Our gears are manufactured using high quality alloy steel, machined and honed to AGMA/DIN 6 standards, reducing noise to minimal decibel levels which exceeds OSHA requirements for noise.
REDUCE MAINTENANCE & DOWNTIME
The drum motor having no external moving components, eliminates the need for continual chain adjustment and yearly maintenance. Our motors are virtually maintenance free, requiring only an oil change after 50,000 hours of operation which can be performed without removing the drum motor from the conveyor.
HIGH PRESSURE WASH DOWN
Extreme pressure wash down with sanitizer is easily performed without the need to shield sensitive components since the completely sealed drum motor has no external components to protect.