Electropolishing Equipment

• Stainless Steel & Polypropylene Construction – Bench-top units feature stainless steel; console systems utilize multi-tank polypropylene process stations
• Integrated DC Power Supplies – Precise voltage and amperage control for consistent processing
• Digital Timers & Temperature Control – Ensures repeatable, controlled electropolishing cycles
• Heated Process Tanks – Digital temperature monitoring for process stability
• Filtration, Agitation & Sparging – In-tank options for enhanced solution performance (console systems)
• Anode & Cathode Configurations – Precision setups for uniform material removal
• Flexible System Configurations – Compact bench-top and multi-station console designs
• Power Input Options – 120 VAC (bench-top) or configurable power input (console systems)
• One-Year Warranty – Reliable support and coverage

What is Electropolishing

Electropolishing, sometimes described as the reverse of electroplating, is an electrochemical finishing process that removes a microscopic layer of material from a metal surface. During the process, metal parts are immersed in a controlled electrolyte solution while electrical current dissolves a thin layer of metal from the surface.

By preferentially removing material from microscopic surface peaks, electropolishing gradually smooths and brightens the metal surface while preserving the overall geometry of the part.

The result is a cleaner, more uniform surface with improved corrosion resistance, enhanced appearance, and better overall material performance.

Key Benefits of Electropolishing

Electropolishing offers several advantages compared with mechanical polishing methods:

• Enhanced corrosion resistance through improved surface passivation
• High-luster surface finishes for improved appearance and reflectivity
• Improved resistance to staining and bacterial buildup on metal surfaces
• Removal of micro-burrs and surface imperfections from machined parts
• Improved surface integrity, helping increase the strength and durability of certain metals
• Cleaner metal surfaces, allowing more accurate inspection of material microstructure

Typical Electropolishing Process

Electropolishing systems typically follow a three-stage finishing workflow:

1. Pre-Cleaning
Parts are cleaned to remove oils, machining residues, and other contaminants that may interfere with the electropolishing reaction. Ultrasonic cleaning is commonly used to prepare parts for processing.

2. Electropolishing
Parts are submerged in a temperature-controlled electrolyte bath while controlled DC current removes a microscopic layer of material from the surface.

3. Post-Cleaning and Rinsing
After polishing, parts are rinsed and dried to remove residual electrolyte and ensure a clean, corrosion-resistant surface. Ultrasonic cleaning and rinsing may again be used during this step.

Electropolishing is widely used in industries where surface quality, cleanliness, and corrosion resistance are critical.

Typical applications include:

• Polishing stainless steel components
• Medical instruments and surgical tools
• Aerospace hardware and precision machined parts
• Jewelry and decorative metal components
• Laboratory process development