About us

Thanks to the know-how anchored in the company and many years of experience in the field of high-pressure technology, we are breaking new ground in the industry with developments and product improvements and are constantly setting benchmarks and standards.


Success with magnetic stirrers

Already at the time of its foundation in 1976, "premex" relied on the novel permanent magnetic couplings which it used for agitators in the chemical industry and thus laid a milestone in its success story.

As a renowned reactor manufacturer, we accompany you competently from the moment of your project design to the finished product.


The years of growth

Magnetic agitators form a core part of a reactor. What could be more obvious than to equip the imported reactors from Italy with premex agitators? In order to meet the growing demands of research and customer requirements, it was decided in the course of time to create an own autoclave line "made in Switzerland". The level of awareness grew steadily and premex gained large references from the Basel industry and nearby foreign countries. In the following years, we were able to acquire representatives abroad who are endeavouring to open up further markets for us.

A new foundation stone is laid

With partnerships in process engineering, such as a specialist for control systems and automation and an engineering firm for the planning of chemical processes and plants, the foundation stone for a new division was laid in 2004: PROCESS PLANTS. Today we are in cooperation with the company ProRec in Berlin.

Focus on the customer

Our products are characterised by individual adaptation to customer wishes and requirements. Proximity and the exchange of experience with users in research, partners and designers are central to us. Our magnetic stirring systems, high-pressure reactors and process plants are valued high-tech products at:

  • Chemical, pharmaceutical and petroleum companies
  • Research institutes
  • Universities
  • Universities
  • Plant manufacturers
  • Planning offices for process engineering

A location committed to quality

Around our location in Lyss (BE), we find a high concentration of modern technologies thanks to the watch and machine industry located here. We use the synergies so successfully that our products become top-quality products.

Machining technologies such as precision mechanics, laser and waterjet technology, spark erosion and various surface finishing processes and 3D printing are highly valued by us.


premex solutions gmbh
Grenzstrasse 20b
3250 Lyss


Tel. +41 32 653 60 20

Your contact person

Sales and Consulting
Hans-Peter Zbinden, CEO


Tel. +41 32 653 60 20

Jürg Thut


Tel. +41 32 653 60 29