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every one request VFD, can buy here.
http://szkarda.com/en/product/VFD-M-Series.html

here some good VFD for cnc, very best price and easy to operation.
Delta VFD-M inverter

AC drives very cheaper. you can buy one from
Durable Inverter Manufacturer and Supplier China | Low Voltage Frequency Converter China - Karda

1. Single phase 220-240v input, single phase 220-240v output,(means, have single phase spindels or CNC or ac motor?)
2. Single phase 220-240v input, 3-phase380- 440v out put, (means, if have 220V...