Post on 18-Jul-2015
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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Lagging
• 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
Lagging
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