... XC-422 Speed:0-3000r/minVolt:220V FREP:50HZNW:5KG Certificate:ISO9001Specification:ProductsThe United States this product is non-contact Hall ... 3800RPM, 2800RPM, 1800RPM. 8, the use of the motor can not have a year to recover the investment cost! Time investment, life ... the foot but also power consumption), and energy-saving motors can be synchronized with the sewing machine, sewing machine stopping ...