_ Finishing processes
Precision finishing
More and more demanding quality standards on the market are dramatically increasing the importance of precision surface finishing processes. These treatments improve the aesthetic appearance of metal parts, but also their mechanical and physical characteristics, corrosion resistance and lifespan, among others.

Smoothing
Processes related to smoothing metal surface allow to achieve uniformity of product for appearance’s sake, and to be safe for touching without being scratched to shreds by unfinished roughness. For moving parts, a smooth finish cuts down on friction loss, without getting into coatings.

Mirror finishing
A mirror finish is a highly-polished finish, characterized by a bright, shiny, reflective metal surface. A high-quality mirror finish is not only visually appealing, but the gradual removal of surface scratches reduces indentations or grooves on metal, which may contain contaminants, such as dirt or bacteria.

Deburring
Deburring is a material modification process that increases the final quality of the product by removing impurities with a negative impact the on the appearance of a smooth machined surface, like sharp edges or burrs, left by bending, cutting, piercing, shearing and compressing materials.

Rounding
Rounding cutting edges is crucial for the design and geometry of cutting tools in metal machining. Cutting edge geometry determines the thermo-mechanical stresses on the tool. By employing edge preparation, tool life, cutting performance, and the quality of the machined surface can be improved.

Corrosion resistance

AM Post-processing
Surface roughness of AM parts can vary depending on the technology used and parameters applied, and affects fatigue, corrosion resistance and friction properties. In order to improve the surface quality, electropolishing is postulated as the most promising the treatment to reduce roughness and defects.

Inner channels
Surface quality requirements of internal surfaces, inner channels and complex parts with blind holes have increased during the last years specially in case of injection molding, aerospace, automotive, medical, food and pharma, semiconductors and gas and fluid flow applications.

_ Industries
Aerospace
Surface finishing operations play an extremely important role in aerospace and energy sectors, since it helps to improve efficiency, while increasing reliability and durability. These parts must withstand high stress corrosive conditions, high loads with long-term lifespan and meeting demanding cycle life specifications.

Automotive
Surface finishing solutions are utilized at every level of the automotive pipeline, from garage maintenance and car restoration to manufacturers’ demands. One of the most challenging aspects has to do with safety, since the result of the surface finishing process is closely linked to the vehicle performance and reliability.

Dentistry
Dental laboratories use dry electropolishing to improve surface quality of cobalt-chrome and titanium dental parts. Smoothing, cleaning and eliminating small imperfections from removal dental prosthetics and other implanted dental parts expands their lifespan pieces and can extend the life of dental components from the inside out.

Food & Pharma
Metal components produced for food, beverages, packaging and pharma industries must comply with challenging surface finishing standards. Those surfaces should be ultra-smooth, precision finishing, thus avoiding areas for bacteria grow. DLyte achieves superior results than any other surface finishing method.

Jewelry & Fashion
These industries require a perfect surface quality as the purpose of the piece is mainly aesthetic and its value depends on a good looking. Complex geometries in jewels are hard to polish with traditional polishing methods and electropolishing is one of the techniques utilized for a better homogeneity and standardization.

Medical device
Cleanability, biocompatibility, corrosion resistance, pathogen resistance and a smooth surface without defects are crucial to comply with the function and demand on quality of the medical industries. Improving the surface’s quality on implants, instruments and equipment components increases functionalities as well as their lifespan.

Toolmaking
Overcoming the drawbacks of tool finishing is one of the main challenges in the field of surface finishing solutions, in order to achieve the lowest roughness on flat surfaces. This is why DLyte has specially created new electropolishing technologies to carry out the most challenging freeform surfaces polishing.

Cutting tools
DryLyte offers an innovative solution for precision surface finishing on cutting tools, delivering consistent, repeatable results with mirror-like finishes. Its unique dry electropolishing technology preserves tool geometry while enhancing surface quality. By reducing friction and wear, DryLyte extends the lifespan of polished parts—making it ideal for high-performance industrial applications.

_ Technology
Immersion
DryLyte is a patented technology for grinding and polishing metals by ion transport using free solid bodies. It works by combining the electrical flow created by high-precision rectifier. This results in an ion exchange, removing material from the peaks of roughness.
Projection
Our new Electro-Blasting technology, released in 2021, is a new solution that provides a stream of solid-electrolyte particles propelled by a non-conductive liquid media to improve the surface quality. The media is projected towards a localized area of the piece.
_ Industrial solutions
_ Dental solutions
Desktop series
Accessible to small laboratories, workshops, workrooms and SMEs needing a cost-effective solution for metal surface finishing processes. From grinding to mirror finishing, this new set-up offers a new easy way to process any casting, sintering or milling metal parts.

Compact series
An efficient range of solutions to meet the requirements of dental, medical and industrial sectors, depending on finishing needs, production quantities or part dimensions. Ensures high scalability and performance. A solution for the most common metals and alloys.

PRO500 series
The most advanced, powerful and versatile surface-finishing machine for mass production on the market. It performs high-quality metal surface-finishing better, faster and more efficiently with processing times ten times better than current technologies.

DLyte TurboFlow
Advanced finishing system with DryLyte technology for large, heavy parts. It optimizes time and costs while ensuring a safe, clean operation. Ideal for aerospace, medical, food, pharma, and automotive industries.

DLyte 100AC
This equipment automates metal part finishing without human intervention, integrating into high-volume production lines. It handles
loading, treatment, and post-cleaning with consistent precision and
quality.

DLyte eBlast
Projected dry electropolishing for focused surface finishing in complex geometries and heavy or large parts. It provides a stream of solid-electrolyte particles propelled by a non-conductive liquid media to achieve the best surface quality results of metal parts.

DLyte 10,000
The most powerful modular unit for polishing large, heavy and complex pieces to be totally integrated in any production line. The robot module allows to treat metals and alloys in a fast, and cost-efficient way. It counts with a precise 6-axis mechanical movement.

Dental series
An efficient range of solutions to meet the requirements of dental sectors, depending on finishing needs, production quantities or part dimensions. Ensures high scalability and performance. A solution for the most common metals and alloys.

DLyte Mini
It is perfect for low production volumes or as a complementary device to existing DLyte equipment. It can be used as a secondary, quick-step process to achieve a superior shine.

News
Find out more about our corporate news, the latest commercial developments and upcoming events. From the main international trade shows to the most innovative launches, we invite you to learn more about GPAINNOVA’s brand DLyte. Stay tuned for all the projects in which we are involved!

Exhibitions
Our aim is to be as close as possible to our customers. This is why GPAINNOVA attends every year more than 40 international trade shows dedicated to the dental, healthcare, and industrial sector, including key events such as Formnext or EMO Milano. Check all our upcoming events here!

Webinars
Innovation is in our DNA. Our business group is continuously investing and focusing on getting better to meet the real needs and demands of the industry, which are increasingly changing. Do not miss them out! Learn more about our newest technological developments: machines, fixturing, electrolyte and much more.

Media
Would you like to see how our machines and our disruptive DryLyte Technology work? Do you want to know how they can help you automate your surface finishing processes and make them more cost-efficient and environmentally-friendly? Take a look at our video gallery and find out more about our machinery!

History
Created to overcome these challenges, DryLyte is the basis of DLyte, a technological system that automates, simplifies, and standardizes the post-processing of metal parts. It provides a high-performance solution for the most demanding metals and alloys in the industry.

Awards
GPAINNOVA is a technological platform based on the design and implementation of multidisciplinary innovative projects. Multiple brands within the group have received prestigious national and international awards and recognitions within a short period of time since GPAINNOVA was founded.

Schedule a visit
Our technology knows no borders. Neither does our team! Our DLyte on Tour regularly visits companies across Europe for free, to showcase at home our most advanced solutions for surface finishing in metal parts. Are you interested in an in-house demo at no cost?

GPAINNOVA, the global leading company in dry-electropolishing solutions for metals, medical devices and aquatic drones, has just reached a distribution agreement with CADdent, one of the main German companies specialized in solutions for the dental industry. Under the umbrella of its latest business line, the CADtools brand, CADdent will distribute GPAINNOVA’s machinery and supplies to dental laboratories on the German market. This partnership will enable GPAINNOVA to extend its presence in the metal manufacturing industry sector in one of the major countries in Europe.
From now on, CADtools, created in 2018, will be CADdent’s line to sell machinery, equipment and a wide range of consumables for European dental labs. Additionally, CADtools will also offer technical support to assure an optimal maintenance of the distributed machines.
A big step forward in the cooperation between GPAINNOVA and CADdent
The agreement is a major step in the alliance between these two companies, who have been collaborating closely with each other since 2017. CADdent, whose activity revolves around dental technologies like laser melting, milling or 3D-printing, has been using since then three machines designed and created by GPAINNOVA’s. Specifically, CADdent’s fleet of machines includes some of the DLyte10D (a medium-size electropolishing machinery, easily integrated into medium-sized dental laboratories) and the DLyte100D (the biggest compact machinery for dental laboratories with large production).
Both are patented machines for grinding and polishing cobalt-chrome and titanium alloys for the dental industry. They are available for all types of dental bone supports, spacers, crowns, bars, anatomical structures, implants and orthodontic supports.
These two machines are based on the disruptive DLyte technology. This solution simplifies and standardizes the post-production process of metal parts, improving the finishing results obtained with traditional polishing systems. In September 2018, DLyte received the TCT Award for excellence in Additive Manufacturing Post-Processing.
Two leading companies in cutting-edge technology for dental laboratories
GPAINNOVA is a tech Spanish company born in 2013, based in Barcelona, Miami (Florida, USA), Hong Kong and Shenzhen (Mainland China) and specialized in surface metal finishing machinery, medical devices with RESPIRA and USV (Unmanned Surface Vehicles) with GPASEABOTS. It has a team of more than 120 professionals on staff and more than 35 engineers, and had a turnover of 15.8 million euros in 2020. The company has been selected by Financial Times among the 1,000 Europe’s Fastest Growing Companies in 2020, ranking 76th.
CADdent offers more than 55 years expertise in the dental sector. Created in 1965 in Augsburg (Germany) as the dental laboratory Labor Rager, this company became in 1996 one of six test labs in its country for CAD/CAM technology, and has consistently developed this technological approach ever since.
Taking advantage of the accumulated experience, CADdent GmbH was founded in 2009 to meet the special needs of its target group: dental laboratories from all over Germany and Europe. In recent years, the company opened two new subsidiaries in France (2014) and Italy (2017). In 2018, CADdent founded a further business unit for the distribution of dental products, machines and software: CADtools GmbH. Since then, CADtools has been a 100% subsidiary of CADdent GmbH.
For further information:
GPAINNOVA
C/ Maracaibo, 1, Nau 2-6. 08030 Barcelona (Spain)
Telephone: (+34) 931 256 536
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