Electrofinishing for Precious Metals
Finchem's patented technology engineered to process complex geometries, hidden details, and surfaces that are unreachable with traditional finishing methods.
Electrochemical finishing for intricate designs
Finchem Electrofinishing was developed to meet the evolving demands of jewelry manufacturing and beyond. Technologies such as 3D printing, prototyping, and investment casting have expanded design possibilities, but they have also made surface finishing significantly more complex.
REP1 works through electrochemical deburring and material removal, allowing it to treat small, internal, or hard-to-reach areas that are difficult to access manually. This technology is suitable for gold items in various colors and alloys, as well as other metals, especially when geometry, detail, and consistency of the result require a more controlled process.
Visible results on the most complex surfaces
REP1 Rotor Electropolishing System
Available in multiple versions based on the batch sizes or quantities to be treated.
Target applications
- Filigree
- 3D Printed Jewelry
- Investment Casting
- Prototypes
- SLM
- CPX
Standard equipment
- Cylindrical rotor barrel
- Parameter control software
- Compatible with cyanide-free REP1 Solution AU
Optional upgrades
- Rotating racking/jig kit for rings and bracelets
- Rinse and precious metal recovery system
Patent notice
Finchem Patented Technology
Patent No. 102020000002446
The advantages of electrofinishing
Complex geometries
Reaches deep into cavities, hidden details, and internal recesses.
Controlled material removal
Progressively removes material with extreme precision.
Preserved geometry
Maintains the integrity of original shapes, crisp profiles, and critical details.
Adjustable parameters
Easily program cycle time, voltage, temperature, and rotation speed.
Fixturing-Free
Processes parts without the need for complex custom wiring or individual racking.
Cyanide-Free
Utilizes our eco-friendly, cyanide-free REP1 Solution AU.
Watch the REP1 in Action
Our videos showcase the system in operation, helping you understand exactly how electrofinishing transforms the most complex geometries.
Our consulting, your competitive advantage
Whatever your current setup, production volume, or technical bottleneck, we have the solution you are looking for. We help you optimize throughput, maximize equipment efficiency, and raise your manufacturing standards.
Optimizing processes for flawless results
Our application engineering is dedicated to hitting your specific production goals. Optimize your workflow, boost efficiency, and take your finishing quality to the next level. Through our advanced testing services and in-house laboratory—equipped with a Keyence VHX-6000 digital optical microscope, alongside dedicated finishing, electroplating, and refining/recovery departments—we test and fine-tune processes for:
Investment Casting
Electroforming
Bullion and Coins
Solid & Hollow Chain