A belt conveyor pulley is a critical mechanical component used to drive and redirect the conveyor belt. For a system with 800 mm belt width, the pulleys must be appropriately sized and engineered to support the load, belt tension, and operational environment.
๐น Types of Pulley Used:
Drive Pulley: Provides the driving force to move the belt.
Tail Pulley: Located at the return end; helps in belt tracking.
Snub Pulley: Increases belt wrap angle on drive pulley for better grip.
Take-up Pulley: Maintains belt tension and absorbs elongation.
๐น Pulley Dimensions (Typical for 800 mm Belt):
Face Width: ~950 to 1000 mm (approx. 1.15โ1.2 ร belt width)
Pulley Diameter: Depends on application, typically ranges from 315 mm to 700 mm
Shaft Diameter: Designed based on load and torque (e.g., ~100โ220 mm)
๐น Construction Materials:
Shell: 600NB shameless SCH-80 pipe (Mild Steel)
Shaft: Carbon Steel (EN8/EN9).
Lagging (for drive pulley): Rubber or ceramic for better traction.
๐น Design Considerations:
Belt Speed: Typically 1.5 โ 3.5 m/s
Load Capacity: Depends on bulk density and conveyor inclination.
Pulley Bearing Type: Spherical roller bearings with adaptor sleeve for heavy-duty use.
Balancing: Static and dynamic balancing to minimize vibration.
๐น Applications:
Used in industries like mining, cement, steel, ports, and power plants for transporting bulk materials like coal, limestone, and iron ore.