Manufacturer of Heavy Duty High Precision Drum Motors

• Modern manufacturing facilities in the US, Canada, and Holland utilizing the latest technology and expertise.

Company Profile

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What Is a Drum Motor

The Van der Graaf Drum Motor is a one component

conveyor drive in which the motor, gear drive, and all

moving parts are enclosed inside the drum.

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Design Benefits

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The Drum Motor Design:

Increaseso Versatilityo Space utilizationo Durabilityo Productiono Safety

Reduceso Maintenance o Downtimeo Noiseo Energy &

Operating Costs

Drum Motor Assembly

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Comparison to Conventional

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The Drum Motor offers a much less complex and more efficient way to power your belt conveyor.

Comparison Video

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Savings Compared to Conventional

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Drum Motor Features

• Lubricant/CoolingAn oil bath ensures that heat is transferred through the lubricant, onto the drum, to dissipate on the belt.

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Drum Motor Features

• Hermetic SealingVan der Graaf manufacturers and engineers seals that are specific to the industry to provide a leak proof environment.

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Drum Motor Features

• Honed and Ground GearsUsing alloy steel, gears are machined and honed to AGMA/DIN6 standards and exceed OSHA low-noise requirements.

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Electric Motor

• Van der Graaf designs Drum Motors specific to each environment.

• The drum motor can be supplied in all standard voltage or any nonstandard voltage and frequency for three phase or single phase applications.

Vacuum Pressure Impregnation Process Video

General Torque Curve Graph

Supply Voltage

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General Motor Torque Curve

This graph illustrates the typical start-upconfiguration and the general motor torquecurves for Van der Graaf drum motors.

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Vacuum Pressure Impregnation(VPI)

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• UrethaneUtilizes a unique ribbon flow method of coating cylinders with high durometer urethane.

• Hot BondA vulcanization process that adheres colandered rubber to the exterior of a drum motor shell. The result is a seamless, durable, and tear resistant finish.

• CeramicRubber lagging with ceramic tiles embedded improves traction and abrasion resistance. Typically used for larger HP drives that work in harsher environments.

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Tungsten Carbide Infusion

• As an alternative to conventional lagging, Van der Graaf has developed a traction coating layer of infused tungsten particles embedded into the surface of the drum using a thermo spray system.

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Range of Drum Motors

• Available in both standard material and stainless steel, Van der Graaf Drum Motors can be used in all applications in order to enhance any bulk or material handling system.

• Varieties include:

o Diameter Sizes (4 – 36 inches)

o Various Belt Speeds (3 ft/min – 1800 ft/min)

o Horsepower (0.10 – 250)

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Sanitary Series Drum Motors(SSV)

o Ideal for the food industry o Essential to conveyors requiring

sanitary wash down

• SSV Labyrinth Sealing Systemo Prevents contaminants from

penetrating the sealing integrity of the unit.

o SSV drum motors are capable of handling 2000psi wash down pressure.

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Cross Drive

• This design has all the

benefits of the Drum

Motor combined with the

flexibility of an external

electric motor for quick

and easy installation.

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• The Extreme Duty Mining Series Drum Motor is a robust unit for mining applications able to withstand heavy shock loads.

• Engineered for the harshest environments.

Diameter: 20 – 36 inches

Horsepower: 50 – 250

Extreme Duty

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Industries

• The Van der Graaf Drum Motor is built to meet the requirements of any application. Our industries include:

o Airport Baggage Handlingo Postal/Parcelo Food o Mining & Aggregate

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ROI Summary

• Reduced maintenance and downtime – only an oil change every 50,000 hours

• Enhanced space utilization – fit more lines into less floor or overhead space

• With 96% mechanical efficiency, power savings of over 30% are possible

• AGMA/DIN 6 gear standards reduce operating noise

• Enhanced operator safety by eliminating external moving parts

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Principle

Van der Graaf adheres to one principle:

“Design a superior product to meet

customer needs in a changing marketplace”

As a result VDG has been the premiere supplier of conveyor belt drives for over 60 years worldwide and continues to answer the demands of the material handling industry.

Thank You

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Title

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Design Benefits

What Is a Drum Motor

Company Profile

Comparison to Conventional

Savings

Oil Lubricant

Hermetic Sealing

Honed & Ground Gears

Electric Motor

Torque Curve

Tungsten Carbide

Range of Drum Motors

SSV

Cross Drive

VIDEOComparison

Cross Drive

Lagging

Tungsten Carbide

VPI

Drum Motor Assembly

Extreme Duty

Industries

ROI Summary