... , easy operate & low cost use for pad stencil , for silk screen plate ,for thick & thin steel pad plate, Polymet plate; PS ... . Exposure fast ,save ,UV lampes long life,Automatic exposure and vacuum sorption,which controlled by a high precision timer Technical Parameter ... 1. It installed one vacuum pump into machine 2. Glass table size: 405*600mm 3. Glass table thickness: 8mm 4. Machine cover ...