General Description of Drum Motors
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The Interroll Drum Motor was first produced in 1953 specifically for use on conveyor belt applications. The aim was to produce an extremely compact, totally enclosed and highly
efficient conveyor drive that would be unaffected by dust, water, oil, grease or other harmful substances - which would be quick and simple to install and would require
virtually no maintenance.
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Today the modern drum motor is considered to be one of the most reliable and effective belt conveyor drives available throughout the world. The Drum Motor is in simplistic terms a
highly efficient geared motor drive, which is totally enclosed, in a steel cylindrical shell. The shell, which is normally crowned to ensure central belt tracking, is fitted with
bearing housings incorporating precision bearings; oil seals and rotates on a shaft. The motor stator is fixed to the shaft and the motor winding cable passes through one end of
the shaft, eliminating the need for slip rings and brushes.
The squirrel cage motor manufactured in laminated steel is machined concentric to high tolerances and designed to give 200% starting torque. The rotor pinion is coupled directly
to the gearbox. The gearbox transmits the drive directly to the shell bearing housing through a geared rim and provides a high efficiency from motor to drum face with very little
frictional losses. The drum motor is oil filled, which acts as both a lubricant and a coolant whereby the heat is dissipated through the shell and conveyor belt.
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Drum Motors
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Standard Product Range
 | Drum Motor 80SØ 81 mm
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| Drum Motor 80S DCØ 80 mm
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| Drum Motor 80iØ 81 mm
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| Drum Motor 113SØ 113 mm
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| Drum Motor 113CØ 113 mm
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| Drum Motor 113S DCØ 113 mm
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| Drum Motor 113EØ 113 mm
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| Drum Motor 138EØ 138 mm
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| Drum Motor 138EMBØ 138 mm
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| Drum Motor 165SØ 165 mm
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| Drum Motor 165EØ 165 mm
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| Drum Motor 216SØ 216 mm
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 Drum Motors Video MPEG-4 Document (Size 3.3 MB)
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