... Mould Polishing Machine Technical parameters: 1)Power Supply:220V;Power:50W 2)Max.Amplitude:45UM 3)Frequency:20--30KH K988C Mould Polishing ... times per second. Maximal amplitude is 50 um, high speed. Brute force and stable grinding work piece surface can ... electric spark mould glazing machine has high-performance, long life span, high-accuracy vibration function, high speed, maximal amplitude 45 ...