This model is a powder-specific model. It is internally pumped, with high vacuum and large vacuum chamber volume. It can be placed directly in the vacuum chamber together with the product outer packaging (such as barrels, boxes) to complete the vacuum sealing of the inner bag. The open-door operation mode is convenient for shelving heavy objects. It is equipped with powder filter, regulating valve, exhaust release valve and other technical requirements for powder vacuum packaging.

　　 This model is suitable for large-scale packaging of powder and granular items. It can be automatically formed with a mold and is widely used in new energy, chemical, and food industries.