Regarding the issue of the magnet shaft moving upward in the 0.5L magnetic stirrer
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Hello everyone: I have a question. When a 0.5L magnetic stirrer is used at an operating temperature of 200°C in a reactor, and the rotation speed is below 100 revolutions per minute, the internal magnet core shaft moves upward, causing friction against the sealing element. Why does this internal magnet core shaft move upward? The impeller is an upward-moving propeller; there is no frictional noise at speeds above 400 revolutions per minute. What causes this? Please give me some advice, senior.
Is there a more complete image? The part that’s visible is too small