Heat Seal Pinch Bottom 
Bag Making Machine

• Sift-proof and leak-proof bags
• Modular design for ease of setup and changeover
• Sealing design using heat and pressure
• Commonly used for microwavable packaging, popcorn bags, medical and chemical bags and more
• Straight delivery for ease of staging and off-handling

The Weber Heat Seal Pinch Bottom Bag Making Machine produces high quality sift-proof and leak-proof bags in a broad range of sizes. One ply or two ply bags can be formed with a maximum combined basis weight up to 75 pounds (120-GSM). Side seam or center seam formation is available.

The machine consists of three modules; the tubing section, the turning unit and the bottoming unit. Bag formation begins as the web enters the tubing module. The web is formed into either a flat or gusseted tube and cut to length.

The tube is then turned 90 degrees using H.G. Weber's patented turning unit, which transfers the tubes into the bottoming unit in one continuous straight-line operation. The turning unit eliminates the need for an L-shaped machine line or the extra handling required with a two step tubing and bottoming operation.

The bottoming unit offers several types of bottom sealing, including a flat patterned seal, a single foldover heat sealed and glued bottom seal. Heat sealing is accomplished by applying heat, which is automatically proportioned with the machine speed. This heat activates the pre-applied adhesive and pressure is applied to set the bottom seal.

Standard Features

Optional Features