Sigma Mixer

Double arm kneading machine commonly referred to as sigma 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 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.

 

Standard Model

 

The counter-rotating tangential sigma blades have a good mixing action, greater wiped heat transfer area per unit volume and minimum riding of material on the blades, ensuring optimum kneading.

It is provided with power assisted electro mechanical / hydraulic tilting device for easy and total discharge of material.

Sigma mixer is available in various capacities ranging from 10 litres to 1600 litres to handle 5 kgs to 1000 kgs per batch. Two tier models with bottom discharge are also available for specific applications.

All contact parts are made of SS 304/SS 316.