BVL-520 is specially designed for large vertical bags and gusset pillow bags. The bag size, filling volume, etc. can be changed according to customer needs. It is simple and easy to operate. It adopts a servo film pulling system, which operates stably and reliably and avoids film misalignment. Phenomenon, it can package granules such as cereals, sugar, salt, etc., as well as powders such as milk powder and meal replacement powder.