Features: 1) Uses PLC programmable controller and touch screen to finish the auto-cycle process of opening-closing mold, feeding, heating, heat preservation, cooling, demoulding and releasing. 2) Uses auto vacuum control system in the process of feeding, heating, heat preservation and cooling. 3) Vacuum system includes vacuum storage tank, vacuum cooling tank and high efficiency water-cycle vacuum pump. 4) Produces blocks of 6 - 40kg/m?density, has fast molding, uniform cementing, low moisture content and not tend to deform. 5) Teflon coating (optional) on the surface of mold is easy to demould 6) Thickened vacuum block molding machine is attached with auto-transportation, auto-electric weighing and printer. 7) Can be a part of the production machinery of sandwich panels of 850mm, 950mm and 1,150mm, also can produce 1,000mm building blocks.