This A4 envelope making machine is most advanced envelope processing equipment currently at home, which was successfully developed by our company introducing the foreign advanced technology and combining the domestic industrial features. The mechanism of the equipment, like the creasing, feeding, sizing, fine adjustment and other parts, is carefully designed by our technicians. Therefore, that has ensured to achieve the advantages of high efficiency, stable performance, easy operation, etc. During the mass production.

Reliable sheet separation of air-suction bottom feeding system with automatic feeding of non-stop operation of the equipment; Easy regulation of the positioning structure of the paper with accurate positioning; Ensuring the forming precision of ground regarding the parts of vertical and cross creasing under the high-speed running of the machine; Rotary sizing applicable for any forms of glue lines; Provided with the folder for the suction roller for the stable production in a high-speed state; Visible and accurate regulation of the dial under the condition of fine adjustment; Mounted with electric counter and automatic delivery unit on the collecting part.