lbz-l type double sides pe coated paper cup machine is a development equipment on lbz-li single side pe coated paper cup machine. in this type paper cup machine,we add a ultrasonic system to sealing the paper cup body,the ultrasonic system resolve the problem that double sides pe coated paper can not be sealing by heater,the reason is that when a heater is adopted on the outside suface the pe film will be burnt and become yellow or blackish and make the cups shape in ugly. use lbz-l ultrasonic paper cup machine,you can produce both double sides pe coated paper cups and single side pe coated paper cups only exchanging the raw material. main technical data: paper cup sizes: 3,4,5,6.5,8,9,10.5,12,16,18 oz or other sizes row material: single side(one side) or double sides pe(polyethylene) film coated paper suitable paper weight: 170gsm--420 gsm (recommend 190--320 gsm) speed of making paper cups: 40--50 pcs per minute limit of temperature control: 0--400 centigrade total power: 5.5kw power source: 380 v,220v 50 hz,60 hz or other customer needed whole machine weight: 1450 kg appearance size(l x w x h): 2500 x 1200 x 1400 mm note:we can make the paper cup machine suitable for your requirement.