The HCEA’s annual International Convention and Old Equipment Exposition is a gathering of antique construction machinery, trucks and related equipment for the general public. The show features live demonstrations of these machines, with technology spanning from the late 1800s to the mid to late 1900s. Exhibitors bring equipment from hundreds of miles away to our shows, and attendees come from around the world.

Our next show will be in Concordia, Kansas, Friday through Sunday, August 28-30, 2026!

The huge collection of show host Kurt Kocher will be on display again, the show grounds will be laid out more compactly, and Allis-Chalmers equipment will be featured. And not just Allis-Chalmers branded! Anything in the Allis-Chalmers product family, especially construction and agriculture, including Monarch, Henry, LaPlant-Choate and other acquisitions, is welcome. Also anything powered by Allis-Chalmers or Buda engines! The Two-Cylinder Club, featuring John Deere Ds and one of two D Dugan crawler conversions, will also be showing.

We’ll be using an elevating grader with bottom dump wagons, draglines, a clamshell, a Marion steam shovel and more to widen a pond dam, grade a road across a ravine, and convert a silted-in pond to a waterway.  Kansas-made machines will include Concordia-built Peltier Foundry Sulky pull graders and a working Ersham rock crusher. We’ll also demonstrate what is believed to be the only operable steam skip concrete mixer in the country, and we’ll recreate a 1915 photo of 10-plus outfits plowing using Aultman Taylor prairie tractors and period gang plows.

Other highlights include rides in a World War II halftrack, a huge sandbox with the Lakeside Sand & Gravel model screening plant, antique cars and trucks, a daily parade, and more!  More info to follow!

Click to view image galleries from past shows!