Electro-Polishing Services

1 = Rectifier
2 = Anode: the positive pole of the rectifier.
This will be the stainless steel component
3 = Cathode: the negative pole of the rectifier.
This is made of copper (Cu).
4 = Electrolyte (phosphoric acid H3PO4 + sulphuric acid H2SO4 + additives) at approximately 50ºC
5 = Agitator (stirrer).

Setup for austenitic steel electropolishing (Source: EHEDG Doc.18)

RIGHTER electro-polishing of stainless steel items is compliant to ASME BPE requirements
The high surface quality is the result of years of experiences and know-how in processing electro-polishing. Significant process parameters are observed :

• Operating temperature of the electrolyte solution.
• The amplitude of the cathodes and their location relevant to the product.
• ph value of the solution.
• Processing duration that the part is immersed in the solution.

As a result, RIGHTER products stand out from competing products in the following ways:
A thicker EP layer to minimize rouging
Higher Chrome concentration for better corrosion resistance
Guaranteed smoothness (Ra) in all internal surfaces to reduce Bio film