The double side automatic labeling machine is suitable for square bottles or flat bottles with double labels or single label. Enhanced design,increase torque design,material transfer speed and labels feeding speed are all increased The shape belt can be inclined design,labeling head with orientations adjustment,any products can be adjusted by a few minutes.thepressure between the drving shalt and pressing roller can be adjusted,so that the working direction of the labels can be adjustedfreely,rather than the ordinary elastic pressing tightly,labels run freely Double-roller structure of labeling head is used to make sure the label paper is pulled tightly and avoid the phenomenon of labelbrokencaused by the die-cuting, damage of the back paper.the separated clutch balances the tension more evenly. The touch screen based in Chinese and English with the online helping system makes it easy for operate the machine for the workers.Thepressing bel is geard into the main transporting, line,so it makes the two transporting belts work in synchronous absolutely without anyadjustment. The machine apply the fomous server motor,so it realizes real closed loop controlling and it avoids the penomenon of the blind manwalk when the machine apply the stepper motor.high-precision refinement,built- in absoute encoder,allthis is designed to improve theaccuracy. The multi channel encoder detects labeling posiion precisely ,reaize accuracy labeling, the label is pressed by a scraper after applying onbotle and pressed by unpowered sponge rollers and finishing labeling at one time , without any bubbles. it is specially applicable to thefrosted bottles with transparent labels. Can install roll labeling or three rollers device ,realize round bottle labeling at same machine.