... Introduction: ZLS type vacuum coating machine is a vertical type, double door, evaporation coating machine. This machine can be used in ... 8 X3 Main Configuration:(1) Vacuum chamber: vertical type, double door, made of high quality carbon steel or s/s ... system: consist of high vacuum valve, high vacuum diffusion pump, roots pump, rotary piston pump rotary-vane vacuum pumps;(3) Evaporation system use two ...