Procor built more than 1,300 aluminum covered hoppers for hauling sodium chlorate dry crystals. Over 95% are used in paper manufacturing (bleaching agent). The remainder are mostly sent to beverage facilities for sanitizing equipment. Both industries I plan to add to my RR.
I’ve built 2 versions, One with retractible safety rails and one without. The files are shared on Printables. https://www.printables.com/model/1626905-procor-3000cf-sodium-chlorate-hopper-for-your-gard
Decal sheets in PDF format are provided as well
Here is the Cricut design project file for the Anti skid patches. https://design.cricut.com/landing/project-detail/69c6c26bf52b03855e54d913
I fashioned the safety rail sections from brass rod.
All parts printed in Polymaker ASA except the detail bits at the bottom which are Siraya-Tech tough grey resin.
For added weight, I made inserts for the hopper outlets to hold a stack of pennies.













