(800) 245-7505 | (618) 224-7505

Request More Information

The Arnold Company is the number one Railcar Gate Door Opener manufacturer in the United States. As home of the Door Demon^® Railcar Hopper Gate Door Opener, we specialize in making custom designed Railcar Gate Door Openers to meet the specific needs of your working environment! 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 Railcar Gate Door Opener needs and stand behind our products!


Top 10 Reasons: Check out the why your Rail Car Gate Door Opener should come from us!

Information Request Form: Request more information on any of our products today using our quick and simple form!



Frequently Asked Questions: Browse our FAQ section to get answers to the most frequently asked questions, as well as gain valuable insight for your decision-making process!

Arnold Company Door Opener Products are proudly produced in the U.S.A.

Warranty Information.......

We pride ourselves in designing in strength, quality, and durability into all that we make. So returns or warranty issues are not a frequent occurrence. However, in the unlikely event that there is an issue we warranty all of our equipment for a minimum of 12 months against manufacturing defects. We will cover the parts and our labor for the repair or replacement. Many items may have a longer manufacturer’s warranty.

Please call us to discuss any issues you are having and we will be glad to assist with a quick resolution.