Simpson Mix-Muller® Batch Mixer

In small to medium-sized sand systems or difficult mixing applications, versatility is critical. The Simpson Mix-Muller® has been carefully designed and proportioned to achieve maximum performance, versatility and energy efficiency in these types of applications.


Project Information Worksheet
Medium-speed, high-intensity, muller-type mixer for batch operation.
Small- to medium-sized sand preparation systems, and the most difficult mixing applications.
– Adaptive tooling
– Energy efficiency
– Larger batch and longer available cycle
– Rugged design


Simpson Mix-Muller®

The Simpson Mix-Muller is designed for maximum performance, versatility, and energy efficiency, making it ideal for these specific needs. In small to medium-sized sand systems or challenging mixing applications, versatility is key. 

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Versatility Makes You More Competitive

Designed to utilize larger batch sizes and longer cycle times to provide better consistency and control. Larger batch sizes provide for better averaging of multiple molds and other variations in return sand. Longer cycle times provide for better control. Adaptive tooling provides for flexibility to adjust to variations in batch composition and property development.

Adaptive Tooling

Muller wheels are mounted on independent, spring-loaded suspensions. As the molding sand mixture increases in volume and strength, the mullers react by raising and increasing the mulling pressure. This is a versatile and inexpensive source of mixing energy which provides the kneading and compression action of mulling.

Wide-faced mullers provide compression and shear. The muller wheels are set slightly off their true radius so thta as they revolve, they skid to provide a shearing action. The inside edges of the wheels travel a shorter path than the outside of the wheels which causes a spatulating action across the face of the wheels.

Interchangeable, modular plows armored with tungsten carbide provide intensive blending and minimize maintenance costs.

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