Doma-Tech Mainardi AG is a modern, family-run company based in Diepoldsau. It is thanks to the dedication of our founder and CEO Gianfranco Mainardi Sr. that we are now an integral part of the market as a competent partner for mechanical engineering and automation. We continue his life's work with great passion and manufacture locking cartridges and locking units for pneumatic cylinders of the highest quality for our customers. The following applies to both our products and our customer relationships: Why make it complicated when you can make it simple? We are happy to be measured by this motto! Find out more about our products and our company.