The sigma mixer is a batch kneader with two sigma-shaped (Z-type) blades turning in a W-shaped trough. The blades are machined to keep a small, even gap from the trough walls, so very viscous and stiff products are folded, sheared and kneaded thoroughly.
Heavy-duty gears handle the kneading load. Shaft ends are sealed with PTFE chevron rings or PTFE braided gland rope, and safety guards and grills are fitted as standard.
Working principle
Two blades rotate towards each other at different speeds, pulling the mass from the trough walls, stretching it and folding it back. The constant transfer between the blades produces intensive kneading of high-viscosity materials.
Technical specifications
Construction
Material of construction
M.S. / SS 304 / SS 316
Model
GMP / non-GMP
Need a different size or material? Specifications are for standard models; we build to your capacity and process.Ask for a custom size
Applications
Stiff pastes
Doughs
Polyester compounds
Rubber compounds
Features & options
Key features
Blades machined for a minimal, even gap to the trough
