For the processing of sensitive & hazardous heterogeneous compositions containing low to medium viscosity resins/ binders & various dried particulate fillers having different particle size ( less than 1 micron to 300 micron) under high vacuum. Intimate mixing of these ingredients is must to ensure uniform mix. End of Mix viscosity to these compositions may vary from 50 poises to 80000 poises @25°C. For removal of moisture & occluded gas / air from high viscosity composition, application of high vacuum of 0.1 mm of Hg is necessary during mixing. For very viscous compositions initial circulation of hot water through mixer jacket is essential and to avoid sudden rise in viscosity after addition of curing agents cold water circulation through jacket is required. The Planetary mixer unit consist of a Mixer, bowl with trolly, hydraulic drive unit, remotely operated control system with PLC & SCADA along with power back up system for PLC & close circuit camera & colour Monitor for remote viewing, during Mixer Operation.