Large surfaces
With PEP-Jet we polish large areas that are not possible in electrochemical or plasma electrolytic baths.
Plasma polishing
We use plasma to polish your parts
We are doing polishing differently. Our tool is a plasma and we master every aspect of it.
The technology
A revolutionary way to finish metal
Plasma polishing is a revolutionary technology for achieving best surface roughness and high-gloss surfaces. Save time, energy and money by achieving lower roughness in one environmentally friendly step. Here is how it works, and the value it brings to your products.
The approach
A cleaner, smarter approach
Today, polishing requires multiple steps to achieve the desired surface roughness. It involves manual polishing and electrochemical polishing, which uses harsh, toxic acids that are harmful to people and the environment. Plasma polishing takes a much cleaner, smarter approach.
Bath process
Plasma Polishing
During Plasma Electrolytic Polishing, the metal part is submerged in an environmentally friendly, water-based salt solution and connected to an electrical power source. This creates a thin-layer plasma around the entire surface of the part. This plasma removes all peaks and imperfections on the surface, resulting in a smooth, polished surface. We use it for simple geometry standalone or in batches.
Jet process
Jet Plasma Polishing
Taking this a step further is Jet Plasma Polishing. Instead of submerging the part in a bath, a specialised nozzle sprays a jet directly onto the specific area that needs finishing. We control the jet and plasma polish exactly where we want. This allows us to polish complex parts and cavities as well as critical areas. Combining both bath and jet, we offer the perfect all-round solution.
Case studies
What we have polished
Real examples across medical, automotive, watchmaking and custom alloys.
Dental cobalt-chrome prosthesis
Cobalt-chrome dental prosthesis finished to a smooth, biocompatible surface, including 3D printed shapes.
Read moreInternal surface of a bent stainless tube
Clean, smooth inner walls on bent stainless tubes, reached in a single pass where tools cannot.
Read more"TIG" Weld joint between two stainless steel parts produced
Selective jet polishing of a weld seam, polishing the joint without touching the area around it.
Read moreWatch cases
Stainless and titanium cases brought to a bright, mirror finish, with edges and geometry intact.
Read moreSpecial electrolyte for a custom alloy
A custom electrolyte developed and validated to reach the target roughness on a proprietary alloy.
Read moreSee it in action
Watch the plasma process
See how the plasma jet finishes a real part in one clean step.
Our services
Where plasma polishing fits
From large surfaces to inner contours, on conventional and 3D printed parts in stainless steel, cobalt chrome, titanium, copper, brass and more.
Local polishing and geometry preservation
The plasma jet precisely polishes targeted areas, keeping geometries and corners sharp. With a wide range of nozzles, spot sizes go from under 1 mm for fine detail work up to 30 mm for fast, large-area processing.
Inner contours and cavities
With the jet and selective polishing we reach areas that mechanical methods and electropolishing cannot.
3D printed surfaces
With PEP we polish rough printed surfaces directly to a fine finish, with no precleaning or preprocessing.
Get in touch
Send us a part, see the finish
Tell us about your part and target surface. We assess it and get back to you.
Email us
[email protected]
[email protected]
Visit us
Quellgasse 21, 2502 Biel/Bienne
Quellgasse 21, 2502 Biel/Bienne
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