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AVW electric motors

Just Call Ben

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Has anyone else experienced motor failures due to water intrusion?
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This tunnel has 16 motors driving various brushes, mitters, etc. We have replaced 8 in the last 3 years since new and they continue to fail - sometimes multiple failures in the same equipment.

AVW uses the Sumitomo gearmotor with a 22:1 reduction. That motor package, according to Sumitomo, is rated IP55 which is not wash-down rated. Further, AVW replaces the factory conbox with a different box to make clearance in the mounting frames of the equipment. It seems there are multiple point of potential water ingress.

Since last year, when installing a new motor, I pack the conbox with dielectric grease to abate water intrusion. This has been successful for the most part but we had one failure regardless.

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Anyone else out there with this experience?

P.S. AVW has discontinued this motor in the newer equipment in favor of an SEW-branded setup that does not fit in the same space as the Sumitomo. Further, they still sell the replacement Sumitomo but with no warranty. How can a company legitimately sell a known defective-designed product and claim no responsibility?
 

washnshine

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I’ve seen other manufacturers use motors that are not wash down duty rated and they usually explain it by saying the motors are “all above spray level”. Well, it’s a car wash - water doesn’t just stay below the spray level- it goes everywhere!
 

Earl Weiss

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40 years ago we stated using hydraulics instead of electric in the tunnels. Electric is great when new. A few years of moisture, corrosion and dirt made issues with conduit, connections and motors a problem when it comes to repair and replace. People have short memories.
 
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