Motorized Pulleys

Motorized Pulleys

For any questions about Terpco Motorized Pulley solutions please contact a Terpco Representative.



What is a motorized pulley?

A motorized pulley is a drum motor in which the body rotates around a stationary shaft. The rotating outer “drum” becomes the traction surface which 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.

The entire internal mechanism, including the motor, gears and bearings, are completely sealed and protected by the outer metal drum. Oil inside the drum continuously lubricates bearings and gears, and removes heat from motor windings.

  • Cast Iron Components
  • Available in Mild & Stainless Steel
  • Temperature Dissipates on the Belt
  • Electric Motors
  • Hermetic Sealing
  • Increase Operator Safety
  • Enhance Space Utilization
  • Lower Energy & Operation Costs
  • Reduce Noise Levels
  • Reduce Maintenance & Downtime
  • Sanitary Handling Antimicrobial Series Drum Motors
  • Drum Motor for Modular Belt Conveyors
  • Explosion Proof Drum Motors
  • Idler Rollers
  • Extreme Duty Series Drum Motors
  • Fewer Parts
  • Low Noice
Low ambient temperature 

For low temperatures below –25°C . Special oil, special seals, and possible anti-condensation heater may be required. Re-greasable seals to avoid drying out the labyrinth seals.

High ambient temperature
For high ambient temperatures above +40°C

Extremely dusty/ abrasive, wet/ high humidity
IP66/67 re-greasable seals, special finish, e.g. stainless steel – AISI 303/4 or even AISI 316, semi-rust-free, special coating, rubber lagging.

Grain handling – Extremely dusty where dangerous atmospheric conditions apply
Dust explosion proof Motorized Pulleys – ATEX 95 – Zone 22 – for applications handling dusty grain etc. Executions according to the European Directive 94/9/EC. This directive is known as “ATEX (Explosion Atmosphere) directive”.

Food handling applications
Re-greasable seals; Stainless steel versions in TS7N, TS9N or TS10N for high pressure and chemical wash down; food grade oil and grease; Food quality rubber lagging being oil, fat & grease resistant. FDA, USDA, FSIA & FESD recognized materials.

Underwater applications
Where IP66/67 specified, the Motorized Pulley has been tested for 30 minutes under 1 m of water. However, the motor is NOT intended for continuous underwater performances (IEC 529).

Indexing conveyor/ decline conveyor/ reversible inclined conveyor
Electromagnetic brake. Special shafts prepared to fit an external brake – 500H- 1000HD.

Motorized Pulleys mounted non-horizontally between 5° – ≤ 90°
Special execution! Extra oil, grease packed top bearing. Electrical outlet:

  • To be re-positioned to the opposite end of standard
  • To be positioned at the top when installed.