Sigma blade mixer

solid/liquidfor the food industryfor high-viscosity materials

Product overview
Sigma mixer for dog food is designed for kneading and mixing high‑viscosity dog and pet food formulations, including high‑meat and semi‑moist products. Counter‑rotating double ∑‑shaped blades provide strong squeezing and shearing to achieve uniform mixing and rapid plasticization of materials.

Applicable dog food product types

• High‑meat‑content soft dog food
• Semi‑moist dog food
• Functional pet‑food base ingredients
• Treat gum bases and premixes

Key benefits for production

• Powerful kneading: Counter‑rotating double ∑ blades deliver strong squeeze and shear for high‑viscosity, cohesive mixes.
• Uniform dispersion: Repeated squeezing and folding disperses meat, starch and additives uniformly.
• Temperature control: Jacketed heating/cooling manages temperature rise to support plasticization and ingredient stability.
• Hygienic design: Rounded inner cavity corners reduce residue and simplify cleaning.
• Short processing times enable consistent pre‑mix preparation for downstream forming, extrusion or drying.

Operation and integration
Designed as a front‑end pre‑mixer or high‑viscosity base preparation unit, the sigma mixer integrates with extrusion, molding or drying lines. Options may include jacket temperature control, vacuum/pressure capability, hydraulic discharge and configurable discharge methods depending on the model.

Technical characteristics / specifications

• Mixing mechanism: double ∑‑shaped (sigma) blades with counter‑rotation
• Function: kneading, mixing and plasticization of high‑viscosity pet food formulations
• Temperature control: jacketed heating and cooling available
• Hygiene: inner cavity with rounded corners for reduced residue and easier cleaning
• Role in line: pre‑mixing/high‑viscosity base preparation for subsequent molding, extrusion or drying
• Suitable products: high‑meat soft dog food, semi‑moist formulas, functional base ingredients, treat gum bases and premixes
• Performance: promotes uniform dispersion of meat, starch and functional additives