Working Principle Of The Kneader

The kneader operates by utilizing the intense shearing action generated by a pair of intermeshing, counter-rotating Sigma (Σ) blades. This action enables the rapid processing and uniform mixing of semi-dry or rubbery, high-viscosity plastic materials.
The kneader consists primarily of five major components: the kneading assembly, the machine base, the hydraulic system, the drive system, and the electrical control system. The hydraulic system employs a hydraulic station to operate cylinders for functions such as opening and closing the lid and tilting the mixing vessel; specific parameters can be customized to meet user requirements, ensuring convenient and reliable operation. The drive system comprises an electric motor, a speed reducer, and gears, with the motor selected according to the specific kneader model.
In the drive assembly, power is transmitted from the motor through an elastic coupling to the speed reducer; the output mechanism then drives the "fast blade" to the specified rotational speed (variable speed control via a frequency converter is also an option).
The kneader features two Sigma-shaped blades operating at different speeds; rotational speeds can be adjusted according to specific process requirements, with 42/28 rpm being the most common configuration.
Kneaders can be designed with or without heating capabilities based on specific needs. Common heat exchange methods include electric heating, steam heating, circulating hot oil heating, and circulating water cooling.
Discharge methods include hydraulic vessel tilting, ball valve discharge, and screw extrusion. Components that come into contact with the material-such as the mixing vessel and blades-are constructed from SUS304 stainless steel to ensure product quality.