This automatic trimmer is designed to be used with the roll laminators in order to complete the laminating system. It has two side-slitting blades and the cross trimmer, so you will have a 4-edges trimmed sheet. The control panel is user friendly and can be operated easily. An integrated photocell sensor precisely activates the trimmer as it senses the leading and trailing edges of each sheet to be cut. The feeding roller and guiding bars can enable the film go straight, without deviation. The regulator bar will stop the machine automatically when there is no film feeding-in.