Return Sand Storage Silos
Three return sand storage silos are capable of holding 60 tons each. They provide a large mass of system sand which helps to even out variations in the return sand.

WARD Ironworks Vibratory Screen
All return sand is passed through a vibratory screen before being reused. The screen has 1/8" openings in it, ensuring core butts, burnt sand balls and scrap metal are removed from the sand.

Simpson MC-150 Multi-Cooler
A new Simpson MC-150 Multi-Cooler was installed in the summer of 1999. The cooler can process up to 150 tons per hour of hot return sand, reducing its temperature to between 80 °F and 115 °F by spraying water onto the sand and blowing air through the sand. The cooler also controls the moisture in the sand to +/- 0.1%, providing consistent sand to the muller.

Simpson 22G Multi-Mull
A Simpson 22G Multi-Mull, capable of processing up to 100 tons per hour of prepared sand, supplies additional water to the cool sand and mulls the sand to provide the desired properties required by the molding machines.

Hartley Compactability Controller ... view photo
A Hartley Compactability Controller monitors the operation of the muller. It measures incoming sand temperature and moisture content, controlling the water addition to the muller. It then repeatedly samples the sand being discharged from the muller, to ensure the sand has the desired properties.

PLC Controls ... view photo
The entire sand system is controlled by Allen Bradley PLC-5 programmable controls, ensuring that top quality sand is available to all of the moding lines on demand.