Ductile Iron Society | Green Sand Production Seminar
September 1-2, 2026
MTI American Colloid Co
2870 Forbs Ave
Hoffman Estates, IL 60192
Join Simpson at Ductile Iron Society's upcoming foundry industry event to explore practical solutions for improving sand preparation and process performance. Connect with Tom Arenholz to discuss the challenges facing today’s foundries and learn how better understanding and control of your sand process can help you get more from your operation.


Tom Arenholz Presentation | Mulling vs. Mixing – Adding Energy!
What really happens inside the big steel box? Simpson’s Tom Arenholz will take a closer look at how mullers and mixers work to coat sand grains with clay and why the energy you add matters. His presentation will cover plows, wheels, wear and basic settings, along with the differences between mixers, batch mullers and continuous mullers. Tom will also explain why understanding your mull cycle matters and highlight a key test for evaluating your process: total oil & grease.