Tel.: +33 (0)4 76 05 23 48
Founded in 1898 by Mr. Chemain and continued by the
Boisserand family since 1914, the company initially specialized in engravings
for printing on paper, watermarking processes and the marking of synoptic
tables. In its constant search for ever better processes and materials, RANDEX
also discovered the advantages of new types of plastics and quickly recognised
With great zeal and creativity, they set to work. As early as 1956 - shortly after the commissioning of a new injection moulding machine - the first successes of innovative plastic valves for washing machines were celebrated. Other innovations followed, such as the first PVDF valves produced in France by injection moulding or the RANDEX monoblock ball valves.
This was the beginning of our current core business : the development and production of high-quality special valves and special plastic moulded parts. Since then, RANDEX products have proven themselves worldwide, for example in the industrial and marine sectors.
In order to meet our high quality requirements, we can rely
on our dedicated team and the know-how of more than 120 years of experience.
From the idea, to tool and machine construction, to production, we carry out all processes in our main plant in Voiron. In order to further expand our product range and service, we have had a strong partner at our side since 2019 : the family-owned company FRANK GmbH (www.frank-gmbh.de), one of the market leaders for high-quality plastic pipe systems in Europe.
Foundation of the company in the Rue des Terreaux by Voiron Chemain. The original business activity was metal engraving for printing.
Eugene Boisserand (1st generation) purchased the company from Mr.
Chemain. The company headquarters is moved to the Rue Porte de la Buisse.
The son, Raymond Boisserand, takes over his father's business and develops manufacturing processes for paper watermarks for the renowned manufacturer CANSON, among others. In addition, solutions for marking industrial control cabinets for power distribution were manufactured.
With the first plastic injection moulding machine in 1956, the foundation was laid for a new line of business: the development and manufacture of high-quality valves made of plastic.
Success was quickly achieved with the first ball valves for washing machines made of Rilsan/NBR.
The company is renamed to RANDEX (BoisseRAND EXploitation).
Inauguration of new building in 15 Route des bois VOIRON 38500
First company in France to injection mould PVDF with Kynar 1000 HF
Mr. Pierre Boisserand (3rd generation) takes over the company
Production of first monoblock ball valve
Expansion of the building by additional 650 sqm for expansion of injection moulding