METAL FINISHING EQUIPMENT

CHEMICAL SOLUTIONS

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RECTIFIERS

Electric power as purchased from utility companies is almost always in the form of alternating or A.C. current at 60 HZ. This means that the polarity changes at 60 times per second. Most metal finishing processes require the polarity to be a constant negative or positive. Rectifiers convert the A.C. electric power to direct or D.C. current, which has a constant polarity.
The electric power supplied from the utility company must also be rectified or adjusted. The voltage is typically too high and the incoming amperage is typically too low. The rectifier will amplify or increase the amperage and step-down or reduce the voltage to levels acceptable for the metal finishing process.
Controls on the rectifier must be adjusted in order to control the voltage being applied or the current being drawn. These controls can be tap switch, powerstat, SCR control, or switchmode. The control used depends on your application. 
SCR and motorized powerstat units can be controlled by a remote control box, which can be located near the processing line. This allows the rectifier to be located in non-corrosive locations in the plant.
Some processes can be negatively effected by ripple. Ripple is a byproduct of converting A.C. to D.C. Filter chokes can be installed into a rectifier, to reduce the amount or ripple to an acceptable level. 
Aldonex Rectifier   Clinton Rectifier   Rapid Dynapower Rectifier


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