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Simpson is comprised of some of the world's largest and most innovative brands of metal casting technologies.

Sand testing equipment is an important quality control tool that is economical to purchase and operate.

Energy efficient mulling for the highest quality prepared sand.

The best features of high-intensity batch mixers in a single design — the mixing performance and energy efficiency of mulling with the productivity of a high-speed, high-intensity mixer.

Our story starts in 1912 when Scottish foundryman Peter L. Simpson designs the mix-muller. For over 110 years we have been providing absolute reliability. This is our story.

Our equipment upgrades allow older equipment to perform with the latest technical advances.

Our calibration services include machine calibration and maintenance, certificates, and reports.