... methods suchas common, pressure and vacuum to ensure feeding speed and uniformity3) Hydraulic system used in the machine can save 30% energy ... of the machine, used in heating, ensures the same steam pressureand temperature during each mold6) Vacuum system, mainly including vacuum storage tank, vacuum cooling ... themselvesUpdate Date:2011-5-14 0:50:58 EPS Automatic Vacuum Shape Molding Machine