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What are the benefits of using magnetic pre-wound bobbins?

Created by Michael Woodward Jan 28, 2019 11:06:59 AM Published in Consumables related FAQ's 3826 Views.

The concept of bobbin thread on a magnetic core is relatively new.

With standard bobbins, as they run down their reduced weight can create vibrations within the bobbin case. This can cause overspin and backlash, therefore thread breaks.

A magnetic core holds the bobbin tight within the case, so eliminates this problem.