Shopping for industrial hardware with history usually comes down to a simple fork: do you want a machine that still acts like one, or a building component that quietly worked for a century? If you are choosing between a United-Carr DOT M239 cast iron press and an A.L. Swett barn door roller hanger, the answer depends on how much room you have, how you want to display it, and whether the press mechanics matter to you. Both pieces are American-made cast iron, and both carry the machine-age look, but they are different objects with different strengths.
Quick verdict
If you want a working industrial press with a steel ram and spring return, choose the DOT M239 cast iron press. If you want a rare barn-found roller hanger with a cast iron wheel, choose the A.L. Swett roller hanger. The M239 is the heavy-duty machine; the roller hanger is the more display-oriented piece.
Comparison at a glance
| Comparison | DOT M239 Cast Iron Press | A.L. Swett Roller Hanger |
|---|---|---|
| Listed price | USD 125.00 | USD 51.95 |
| Relative listed price | ||
| Type | Foot-pedal operated industrial kick press | Barn door roller hanger / roller |
| Material | Cast iron | Cast iron |
| Country of origin | United States | United States |
| Maker's mark | United-Carr DOT Fastener Co M-239 | A.L. Swett Iron Works #5, Medina NY |
| Pack count | 1 | 1 |
Where each product wins
The DOT M239 wins when you want an object that still acts like a machine instead of just sitting on a shelf. The press mechanics are front and center, so you can appreciate how the press operated rather than only how it looked.
The A.L. Swett wins when you want a genuine barn find with a strong industrial silhouette. The front display side is in great condition, so it reads clearly as original hardware rather than a reproduction.
Product notes
Heavy Duty Antique United-Carr DOT Fastener Co M239 Industrial Cast Iron Press

The M239 is the piece to choose if you want an antique industrial tool that still works as one. The foot pedal sits under the table, so you can keep both hands free while the steel rod drives the ram down, and the spring-return plunger brings it back for repeated action. That combination makes it a genuine kick press, not just a heavy paperweight. At USD 125.00, it is the higher-priced option, but it is also the one with actual press mechanics. The limitation is that you get the press only-no dies or other parts are included. If you plan to use it for real punching work, you will need to source tooling separately, and the used condition means you should expect honest service wear.
Vtg antique cast iron barn industrial door roller hanger, A.L. SWETT Medina NY

The A.L. Swett roller hanger is the one to pick if the story matters as much as the object. It measures about 15 inches long and 5 inches wide, with a 5-inch wheel that still spins freely, and the A.L. Swett Iron Works #5 mark ties it to Medina, NY. The front display side is in great condition, which makes it an easy display piece. At USD 51.95, it is the lower-cost choice of the two, and this make is fairly rare. The trade-off is the backside of the wheel has a chip; it does not affect operation or front display, but it is visible if you turn the piece around. If you care about a perfect back, you will want to examine it in person.
Final choice by use case
If you have floor space for a working machine and want a conversation piece you can demonstrate, the DOT M239 cast iron press is the better fit. If you want an easier, display-first piece with barn provenance and a front-facing story, the A.L. Swett roller hanger is the one to take home. Both keep the industrial hardware character intact-the decision comes down to whether you need a machine or a display piece.