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