SINGULUS Customer Service

Roberto Calleja
Head of SINGULUS Customer Service

Roberto Calleja: “Our team consists of staff members with many years of professional experience in the maintenance of our machines”.

Our customers trust our reliability and consistency, which is reflected in a high degree of customer loyalty.

I began as a commissioning engineer, and then became the department manager. Since 2004 I am heading together with my team the business area SINGULUS Business Unit Customer Service.

Our SINGULUS Customer Service Team maintains all business areas of the company – Optical Disc, Solar and Semiconductor as well as new business areas.


Roberto Calleja
Head of Business Unit Customer Service
Phone.: +49 6188 440-161
Fax: +49 6188 440-160

Optical Disc

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Marion Häfner
Assistant to the Head of
Business Unit Customer Service

Phone:+49 6188 440-162
Fax:+49 6188 440-160

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