How to choose the suitable model of laboratory sigma kneader?

When selecting a laboratory kneading machine model, factors such as capacity, material characteristics, heating method, mixing paddle structure, and discharge method need to be comprehensively considered. The following are specific suggestions:

1. Capacity selection: Common specifications used in laboratories include 1L, 2L, 5L, 10L, 20L, 50L, etc., which can be selected according to the needs of experimental batches. For example, the 5L model is suitable for small-scale experiments, while 10L and above models are suitable for pilot testing or mass production.

II. Material selection based on material characteristics: stainless steel (corrosion-resistant), wear-resistant alloy (anti-wear), etc., which need to be matched according to the viscosity, hardness, and corrosivity of the material.

Blade type: Z-shaped blade: suitable for ultra-high viscosity materials (such as silicone rubber, sealant).

Fish-tail propeller: suitable for materials with low viscosity and good fluidity.

III. Heating method: Electric heating: High temperature control accuracy, suitable for processes with strict temperature requirements.

Steam heating: Low cost, suitable for large-scale production, but requires the installation of a boiler.

Heat transfer oil heating: Balancing efficiency and energy saving, suitable for high-temperature (above 200℃) processes.

IV. Z-shaped agitator blade structure: suitable for ultra-high viscosity materials such as silicone rubber and sealant.

Fish-tail type paddle: suitable for materials with low viscosity and good fluidity.

5. Discharge method: Hydraulic cylinder tilting and dumping: suitable for large-capacity models.

Ball valve discharge: suitable for scenarios where precise control of the discharge amount is required.

Screw extrusion: suitable for continuous production or high viscosity materials.

VI. Vacuum function requires defoaming and selection of vacuum type: The vacuum kneading machine can effectively remove bubbles, suitable for experiments with high purity requirements for materials.