Right: a full-size Singer Heavy Duty 4452. Last year, I got a so-called heavy duty Singer that claims to have 50% more power than ... I really need is an industrial sewing machine.

You’ve probably seen a sewing machine before, but there are a few obvious differences with an industrial ... motor in my “heavy duty” Singer 4452, which is supposed to have 50% more power ...

The SINGER Heavy Duty ... This is because this motor features a variable speed function that can adjust the sewing speed. Industrial sewing machines will need more power to pierce thick fabrics ...