Insufficient air pressure or too small air inlet. To solve this problem, it is necessary to adjust the air pressure or replace the large trachea. With the equipment used for a long time, the welding is gradually incomplete, because impurities are deposited in the trachea, which affects the air intake, or it is necessary to clean the pipe. Compression packaging machine is a packaging machine designed to reduce the packaging volume. Some people in the market call it vacuum packaging, and vacuum compression packaging is strictly compressed plastic packaging.