Double arm sigma blade mixers are engineered specifically for kneading, mixing, and homogenizing wet, pasty, and highly viscous products. The mixer consists of two counter-rotating tangential rotors in specially shaped trough, curved at the bottom to form two longitudinal half cylinders with sufficient overboard volume.

The blades rotate at different speeds in opposite directions causing the product to be transferred from blade to blade and from end to end, resulting in a figure eight pattern.

The main trough is of fully welded construction. The rotors are taper bored and key-fitted onto stub shafts working on anti-friction bearings. They are driven by gear on both sides in heavy duty models and pitched to achieve end to end longitudinal movement of the material resulting in thorough kneading action. The shaft sealing is achieved by stuffing box arrangement with teflon impregnated gland packing.

Options:

• Mechanical or hydraulic drive system
• Jacketed mixing troughs or heating and cooling
• Designed for pressure, vacuum, or inert gas operation
• Remote operator control
• Specialized die heads / special extrusion spouts
• Automated operation of cover via hydraulic piston
• Cored blades of various design
  

Applications:

Sealing compounds, asphaltic derivatives, mastics, hot-melts, floor coverings, colorings, rubber base, master-batches, chewing gum, rubber compounds, silicone, lubricating greases, dispersed pigments, butyl, gums and adhesives, ceramic paste, polyester compounds, greasy inks, pencil leads, explosives, powders to granulate, PVC coatings

Ideal for: wire cut cookies, cream fillings, icings, muffin batters, pie dough, granola mixtures, pretzels and sweet doughs.

Mixing trough with 2 kneading blades