A centrifugal stirrer is a specialized laboratory tool designed for high-efficiency mixing, particularly within vessels that have narrow necks. It features a unique collapsible impeller design: the blades remain folded so they can pass through small openings, then expand outward as the rotational speed increases.
Key Features and Mechanics
Expansion Mechanism: The stirrer uses centrifugal force to open its two blades during operation. As the speed increases, the blades move from a vertical position to a horizontal one, creating a radial flow pattern.
Design Similarity: Once fully expanded, its mixing effect is comparable to that of a 4-bladed propeller stirrer.
Operating Speed: These stirrers typically require medium to high speeds (often between 800 and 2,000 RPM) to generate the necessar…
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