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On 1971 DIELL was born, the challenge, an idea ahead of the times …


The evolution of our brand: we have been inside your machines for over thirty years.

1971 1978 1996 2000 2001


1971: M.D. Micro Detectors Srl is established on initiative of a professor at the Technical College of Modena. It straight away establishes itself in the Modenese ceramic district thanks to the pioneering idea of replacing the mechanical sensors used by the ceramic industry with Diell photoelectric sensors.

1971-1995: Diell becomes a leading market brand with international fame. The range of Diell sensors is expanded and now covers not only the purely ceramic field but also the most varied automation sectors: logistics and handling, mechanical industry, mining, woodworking, food processing and treatment, tobacco, textiles, leather goods, shoes, paper, plastic and rubber.

1991: Diell Iberica, the Spanish branch of M.D., is founded.

1995: Marcello Masi, businessman already operating in the iron and steelworking sector with the company Metalsider SpA of Ravenna, becomes the president and majority shareholder of M.D. Micro Detectors, which joins the Masi group, of which also Cistelaier with facilities in Modena and Genoa and Synapto of Catania form part.

2001: The turning point for the corporate brand: MD replaces Diell as brandname.

2002: The Co-design sector of M.D. Micro Detectors is set up for the study and development of specific integrated applications to be co-designed with the customer: the experience gained with the standard product becomes the starting point for offering major customisations in the sensor technologies.

2003: M.D. Micro Detectors Sensores Ltda, the Brazilian branch of M.D., is founded.

Today: M.D. Micro Detectors S.p.A. covers over 12% of worldwide production of cylindrical photoelectric sensors. The current strategy of M.D. Micro Detectors is focused on innovation and extension of its expertise, from industrial automation to new sectors.

The way we were: MD advertising in 1984