About Us

More than 50 years of experience at your service

Trust Supertronic to find the complete solution for your electronics encapsuling

We have a wide range of plastic enclosures for electronic devices and electrical facilities

We are a company with more than 50 years of experience in the design, manufacturing, customization and distribution throughout the world of plastic enclosures to encapsulate electronics.

Our designs are our own, avantgarde and adhere to the highest quality standards. We can sell our products directly to you and ship them from Spain to any part of the world. Or if you prefer, you can contact our nearest international distributor or electronics store.

Our entire supply and production chain is located in Europe and we have quality controls certified by the ISO 9001:2015 Standard. All our products comply with the RoHS2 directive 2011/65/EU.

  • Our highly qualified technical team specializes in customizing enclosures, both ours and those of other manufacturers.
    We are dedicated to adapting each enclosure to meet your specific needs, whether in aesthetic or functional terms, through CNC machining, UV digital printing, adhesive covers, membrane keyboards, injection with special materials and colors,... Our goal is to provide customization services that not only meet your technical requirements but also give your product a professional and cutting edge look.
  • Our expert engineers, thanks to their extensive experience designing hundreds of plastic enclosures, also offer the possibility of custom designing enclosures for our clients.
    We take care of every stage of the process: from the initial design of the enclosure to the technical development and manufacturing of the injection mold. In addition, we optionally take care of the injection of the enclosures, guaranteeing fast delivery times and the ability to adapt to your volume needs. By managing the entire process internally, we avoid additional costs associated with third parties, which allows us to offer this service at a competitive price without compromising quality.


Offer complete solutions to protect and wrap our customers' electronics.

With more than 50 years of experience designing, manufacturing and customizing plastic enclosures for electronics, we are fully committed to helping our customers find the ideal encapsuling solution for their electronic devices and electrical applications.


To be an international reference among companies that provide encapsulation solutions for electronics.

We are backed by more than 50 years of experience and the trust of a solid brand in the plastic enclosure market. We are fully committed to constantly innovating our range of plastic enclosures and customization services, proactively adapting to the changing needs and technological advances of the future, to continue offering cutting-edge and efficient electronics encapsuling solutions to our customers.

Why trust us?

Unbeatable prices

As direct manufacturers, we offer very competitive prices by eliminating middlemen. Additionally, we offer significant discounts on large purchases.

Complete solutions

We provide a comprehensive solution, selecting and customizing the ideal enclosure for your needs. This saves you time and resources by avoiding the need for multiple vendors.

Express shipping 24h

We maintain a large stock of our enclosures, which allows us to deliver within 24 hours. In enclosures of lack of stock, our express injection service ensures delivery in 5 days.

Care & quality

We offer personalized customer service and comply with ISO 9001:2015 certification, guaranteeing the highest quality in our products and customization services.


Supertronic is a family business, in its third generation, founded in 1971 in Barcelona (Spain). In the beginning, it manufactured electronic kits to build simple electronic devices (transistor, buzzer, etc.) for electronics lovers. We soon identified the demand for versatile enclosures to protect electronics and began marketing them independently. Over time, we evolved towards the exclusive manufacture of enclosures, both plastic and metal, and a wide range of accessories.

During the 80s and 90s, we stopped producing kits to concentrate on enclosures and accessories, expanding our range of products and establishing an international distribution network, especially in the countries of the European Union.

In the new millennium, we focus on export and customization, including machining and stamping services. In the last decade, we have specialized only in plastic enclosures and have expanded customization services: digital printing, adhesive covers and membrane keyboards, lacquering, etc.

Currently, we have specialized in providing a complete solution for the encapsulation of our clients' electronics, a priori with our enclosures but occasionally also using enclosures from other manufacturers, to achieve the most optimal result and so that our clients only have to focus on providing value to your product and sell.


A healthy and livable environment is a shared commitment. At Supertronic, we take our environmental responsibility seriously.

We have implemented sustainable initiatives, such as a 100% electric vehicle fleet and all of our lighting based on LED technology. In addition, we have installed a system of solar panels and batteries that generate 80% of the energy we consume, reaffirming our commitment to renewable energy.

Our designers and engineers prioritize the use of eco-friendly materials that minimize environmental impact, thus ensuring that our natural resources – water, soil and air – are preserved for future generations. This is reflected in the fact that all our products comply with strict environmental regulations such as REACH and RoHS, guaranteeing not only their quality but also their sustainability.

At Supertronic, we understand that protecting the environment is a collective task and we are committed to leading by example, integrating sustainable practices into every aspect of our operation.

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