This vacuum UV exposure unit mainly used for exposure precise screens; the external pump is connected with main engine; it will make the screens and transparency film close on the glass tightly by evacuating the air of the vacuum charmer; exposure quality is high, especially for precise screens. Features of this machine: There are eight LED UV light tubes, it can normally be used for about 10,000 hours. The exposing area is 20*24in, and it is suitable for exposing different size screen frames within outsize 18*22in(46*56cm) The rubber cloth and seal ring adopts Taiwan produces high quality materials; Good stretch elasticity, sealed well. External high speed vacuum pump; Vibration is small; noise is small; vacuum degree is 5Pa;it can work for 24 hours. Equipped with 8mm Tempered glass plate, resistant to friction; the glass is broken, the glass shards are no sharp, to ensure the safety of operator. The timer can set the exposing time, after reach the exposing time, the machine automatically turns off the tubes. The timer have automatic memory function, set in once, whether the number of switch turn on or off, time will save. Set the release valve, after the exposure and open the release valve, remove the vacuum, open the cover and remove the screen. This machine is equipped with four soft plastic pad feet, place on the corner of frame, during the vacuum, prevent the corner of frame damage the rubber cloth. Special note: Different brand of emulsion have different exposing time, the operator need to use the emulsion in this machine and confirm the best exposing time. Product color :Blue Machine surface treatment :Electrostatic spraying Machine using material :Steel plate Attachment material : Stainless steel or zinc plating, nickel plating Voltage :110V Machine size : 28*24*9.4 inch Exposure size : 20*24 in Item Included: LED 5060 Vacuum UV Exposure Unit 219109