About us

"With nearly 50 years of experience in the field of high-pressure technology, we are breaking new ground in the industry by means of developments and product improvements and are constantly setting new standards".

Premex solutions is part of the AGI Group

Since 31 May 2022, premex solutions gmbh and premex reactor gmbh are part of the AGI International Group. We are pleased to be part of this extraordinarily successful Japanese company. With around 800 employees worldwide, at production sites in Japan, India, Italy, Switzerland, USA and England, we are globally oriented and look forward to a secure future.

The AGI Group - an innovator in glass technology

The AGI Group is a leading innovator in glass technology for a range of chemical processing industries, including the scientific, pharmaceutical and academic sectors. Its core strategy focuses on expanding its global footprint to achieve rapid sales growth in markets outside Japan, with successful acquisitions both in this country and worldwide.

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

Success with magnetic stirrers

Right from the time of its foundation in 1976, "premex" relied on the novel permanent magnetic couplings it used for agitators in the chemical industry, thus laying a milestone in its success story. Premex used the technology in imported reactors and thus gained a competitive advantage.

The years of growth

In order to meet the growing demands of research and customer requirements, the company decided to launch its own autoclave line "made in Switzerland". The company's reputation grew steadily as a result of the expanded range and individual solutions for high-pressure reactors. Important customers from the Basel industry and nearby foreign countries were soon among the clientele. In the following years, further markets were opened up through agencies abroad.

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



Your contact person - Germany

Technical Maintenance & Sales
Bernd Hartmann


Tel. +49 (0) 6224 928 550