Why CMI-Promex

For nearly 25 years, CMI-Promex, Inc. (formerly Craft Machine and Promex) has served the rail industry with miter rails for moveable bridges, rail expansion joints, curved rail expansion joints, signal housings, and more. Our patented RIDEX® products are the standard throughout the rail industry.

Our customers enjoy a full set of benefits:

  • Quick delivery. Time is money: you can’t afford to wait month after month for delivery of your rail products. CMI-Promex, Inc. has the fastest lead times in the industry, designed to keep your business moving forward.
  • Easy installations. Installations don’t have to involve days of down-time and multiple headaches. With our custom-built products, you can drop rails and expansion joints into place immediately, bolt them in, and you are ready to go.
  • Fast replacements. With our RIDEX® miter rails and expansion joints, you don’t have to replace an entire system when one part wears out – costing you both in capital expense and track outage time. Simply order a replacement for the part you need: we’ll get it to you fast, and you can make the replacement in under an hour with a two-man crew.
  • Complete support. We offer in-person on-site support to make sure your installation is quick and seamless, and 24/7 phone support for any questions you may have and to facilitate swift replacements.
  • Competitive pricing. As a valued customer, we are pleased to give you our custom rail products, quick delivery time, and installation support at cost-effective prices to meet your budget needs.

With product in place in the U.S., Canada, and Australia, CMI-Promex, Inc. is happy to meet your rail needs worldwide with international shipping.


For fast delivery of rail products, call CMI-Promex, Inc. at (800) 381-5808.