Stainless Steel 316 Sigma Mixer

It is built for high-viscosity, sticky, dough-like, and paste-like materials such as stiff pastes, adhesives, rubber compounds, dyes, pigments, creams, ointments, and similar formulations that standard mixers cannot handle effectively.

The tangential design uses two counter-rotating sigma-shaped (Z-type) blades that meet tangentially, with the front blade typically rotating faster (often in a 3:2 ratio). This creates intensive kneading, folding, shearing, stretching, and recombining actions, ensuring uniform mixing with minimal dead zones, especially for higher-viscosity materials.

Models range from ASM-50 (approx. 50 L working / 80 L gross capacity; 5 HP general or 7.5 HP heavy duty) up to ASM-3000 (approx. 3000 L working / 3800 L gross capacity; 100 HP general or 120 HP heavy duty). Voltage can be customized to local power requirements.

Discharge options include manual hand-wheel operation, hydraulic (automatic) systems, tilting the container, bottom valves, or an extrusion screw system. These ensure efficient removal of ultra-viscous materials with minimal residue.

Yes. A jacket for heating or cooling can be fitted, complete with mineral wool insulation and cladding. Optional blade cooling arrangements are also available to manage temperature-sensitive pastes and adhesives.

PTFE shaft sealing is provided for food-grade compatibility. Stainless steel surfaces can be polished to a matt or mirror finish as required, and the minimum gap between the trough and blades helps prevent product sticking, supporting clean and hygienic operation.

It is widely used in the pharmaceutical, nutraceutical, herbal, Ayurvedic, biotech, cosmetic, and chemical industries for high-viscosity pastes, adhesives, sealants, dyes, pigments, and related products.

Available options include a liquid spray system, vacuum system (for degassing), screw system for continuous discharge, blades cooling arrangement, and automatic valve discharge system. These improve process control, hygiene, and handling of extremely thick materials.

Tangential blades (meeting tangentially with differential speeds) deliver strong kneading and shearing for higher-viscosity materials such as adhesives and rubber compounds. Overlapping blades rotate at the same speed, offer faster material interchange with lower shear, and are better suited to lighter viscosities like creams, ointments, or carbon pastes.