Motorized Pulley Presentation
Introduction to Motorized PulleysIntroduction to Motorized Pulleys
•Diameter: 8.50”to31.50”•Power: fractional HP to 180 HP•Belt Speed: 24 to 1,000 fpm•Voltage:
115v/230v/380v/460v/575v•Phase: single and three phase•Frequency: 50 & 60 Hz; VFD
compatible
Motorized Pulley Range
Stationary externalshaft
Permanently oil Filled for coolingand lubrication
Gear box
Terminal box
Electric AC Motor
Rotating drum
Motorized Pulley Concept
Motorized pulley an alternative to the exposed drive
Stator
Rotor
Tube
OilGearbox Terminal Box
“Drip Lip”
Motorized Pulley Cross Section
o Hermetically Sealed
o Aesthetic design
o Space saving compact design
o Light weight
o Safer than conventional drives
Compact!
RULMECAMotorized Pulleys - the perfect drive unit for corrosive chemicals and abrasive bulk materials: Copper & steel Coal Limestone Potash etc.
Hermetically Sealed – IP67
Easy to Maintain
RULMECAMotorized Pulleys – Low Maintenance Requirements (change oil every 10,000 operating hours): Remove magnetic oil plugs Wipe off sludge Drain oil Refill
The pulley is driven directly by the internal gearbox, giving the Motorized Pulley an efficiency of:
Therefore, less energy is required. This makes Rulmeca Motorized Pulleys to one of the most economical conveyor drives.
95%
High Efficiency
Extra Thermal Protection
All RULMECAMotorized Pulleys have 3 built-in thermal protection switches: Connect to normally closed control circuit
Designed to provide back up to plant current overload protection
Rubber and ceramic lagging options
Full rubber diamond
Partial rubber smooth
Partial rubber diamond
Full ceramic diamond
“Holdback” Options
Mechanical
Backstops Internal
Brakes External
Brake Shafts
“Holdback” Options Mechanical Backstop
Fastens to Motor Rotor
• Mechanical Advantage (up to 100:1 gear ratio)
• Protected Environment (hermetically sealed)
“Holdback” Options Internal Brake
Fastens to Motor Rotor
• Mechanical Advantage (up to 100:1 gear ratio)
• Protected Environment (hermetically sealed)
“Holdback” Options External Brake Shaft
Hydraulic shoe brake (by others) installed on 800H Motorized Pulley
External brake shaft extends rotor shaft through pulley main shaft
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