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Single room vacuum packaging machine machine by plexiglass cover, and vacuum room, and body electrical control system, and vacuum system, part composition, Xia work room has hot sealing device, heating component is nickel chrome with, device in bakelite hot body Shang and vacuum room Zhijian absolute insulated, bakelite hot frame close in airbag Shang, hot seal Qian airbag in vacuum State, hot seal Shi, airbag through electromagnetic valve and atmospheric communicates and produced pressure poor, makes airbag variable big, heating head (nickel chrome with) Shang lift, pressure tight seal pocket, while heating, and completed sealing.

Single-chamber vacuum packing machine by air evacuation valve, gas valve, bleeder vacuum system consists, as executing agency, pump starts, from the vacuum chamber pumping, when the desired vacuum set, vacuum pump stopped, and the entire program to the next heat seal program.