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The Arnold Company is the number one Rail Car Gate Door Opener manufacturer. As home of the Door Demon Railcar Hopper Gate Door Opener, we specialize in making Custom Rail Car Gate Door Openers to meet your specific needs! We also carry a full line of Industrial Vibrators.

We take pride in our product selection, product quality, and
personalized customer service! We offer our customers
affordable, practical solutions to their Rail Car Gate
Door Opener
needs and stand behind our products!


About The Arnold Company......

When Arnold Huelsmann started his company there was one focus: the customer. This has never changed and we pride ourselves on best in class customer service. Our 40+ years of experience is still being translated into our new products and solutions.

Unlike any of our competitors, our single focus on railcar door opening has provided us with the largest product offering available. Our willingness to work onsite with customers to meet their unique needs, and do so at a reasonable cost, has provided total customer satisfaction. We pride ourselves in solving problems when other off- the- shelf solutions would not work. We also work with any power source and physical configuration that you prefer and do not push one single line. We never try to lose the voice of the customer as our guidance or we would all lose.

Our offering of products for Hopper Gates, Pressure Discharge Valves, and Boxcar Freight Doors has given us the privilege to serve almost every industry on rails. Not only do we serve the Americas, but International locations as well. We stand ready to serve you, our next new partner.






























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