HaDo International GmbH was founded in 2015 by Harald Hartmann and Alexander Dohm.  With 35 years of experience in mechanical engineering, electronics and automation we developed our dry ice blasting machine COOLMASTER® – 100% made in Germany.

Our vision was to design a machine that could clean almost anything from airplanes to microelectronics with dry ice. Our top priorities were a reliable machine, flexible functionality, modern design and manufacturing in Germany.

Our COOLMASTER® Competence and training centre with development, sales, service, logistics and assembly is located in the Technology Park Tübingen-Reutlingen (TTR) in Baden-Württemberg. Sales and advice are provided by selected specialized dealers as well as directly by us.

About us

Our team is like our dry ice blasting machine. Small but powerful.

Familiar and competently staffed at every point.

We are:
the imaginative developer and technician – always one step ahead
the luminary around dry ice blasting technology – on the road with our customers
the creative one for graphics and advertising
the all-rounder in sales and in the workshop
the accounting talent
the fairy – helps where it hangs and burns.

For us it is a matter of course to get ahead with each other. We always put our heart and soul into our work and have a lot of fun.

History – Review

COOLCOMP Kompressor Ansicht hintere Seite

COOLCOMP mobile compressor expands our product range


Another member of our COOL family. The COOLCOMP shares the greatest features with the COOLMASTER. Small, easily maneuverable, mobile, quickly ready for use.