Liquid Pouch Packing Machine | Spouted & Flat Pouches

Liquid pouch packaging has grown rapidly with consumer demand for convenient, portable beverage and condiment formats. ECHO Machinery's liquid pouch systems address the three critical challenges of liquid packaging: preventing seal contamination, achieving accurate fill, and maintaining hygienic conditions. The spout insertion station—a defining feature of liquid pouch machines—uses a heated mandrel to bond the spout fitment to the pouch film with precisely controlled temperature and pressure. After spout insertion, the pouch proceeds to the filling station where the nozzle descends into the pouch through the spout or open top. The piston filler uses a servo-driven piston with programmable stroke length and speed, with a suck-back feature at the end of the fill stroke that retracts any residual product from the nozzle tip, preventing drips. For hot-fill applications (juice, tea beverages), the entire product pathway is heated to maintain fill temperature, and the filling system includes thermal expansion compensation. The sealing station for flat pouches uses heated bars with a cooling station immediately following to set the seal before the pouch is handled. For spouted pouches, a capping station applies and torques the cap after filling and sealing. The CIP system automates what would otherwise be a labor-intensive disassembly and cleaning process, circulating detergent, rinse water, and sanitizer through the product pathway with documented time, temperature, and flow data for quality records.