Metal surface finishing

machinery solutions


Electro-Finishing Systems for Jewelry


The first passive-layer electropolishing desktop machine in the market. MURUA is a grinding and polishing system for gold, silver and brass alloys.


Processing various pieces at the same time in one fully automated step. It is specially designed for goldsmiths, as it allows more time to design, by reducing the time spent on surface finishing work.


MURUA is the first project performed by GPAINNOVA. The project involved R&D, product conceptualization and industrial design with the aim of creating an industrial product with high performance, rugged engineering and compact, stylish design.

Today there are more than 400 MURUA units working in leading jewelry companies worldwide.

The new concept

of polishing

DLyte is the biggest project of GPAINNOVA as it has meant an authentic revolution of the metal surface finishing technology. DLyte are patented Machines based on Dry electropolishing technology for surface finishing of metal alloys for the industry.

DLyte provides a solution to a wide range of industrial metals and alloys. The applications for DLyte finishing technology range from grinding, rounding and deburring to surface smoothing and high gloss polishing of aesthetic parts.


DLyte is an advanced solution that automatize, simplifies and standardizes the post-process of metal parts, improving the finishing results obtained with traditional polishing systems.


DLyte machinery has been already installed in more than 300 customers from different industries ranging from dental through healthcare, aeronautics, watch industry and automotive.