Seeds back sealing machine is a type of packaging machine used in the agriculture and food processing industries to package seeds in pouches or bags. The term "back sealing" refers to the method of sealing the packaging material on the backside of the pouch or bag, creating a clean and attractive front display surface.

Feeding: Seeds are fed into the machine through a hopper or conveyor system.

Filling: The machine measures and fills a predetermined quantity of seeds into each pouch or bag. This is often done using a volumetric or weighing system to ensure accuracy.

Sealing: The packaging material (usually a roll of plastic film) is pulled from a roll and formed into a tube around the seeds. The sealing process involves heat-sealing the backside of the pouch or bag, creating a strong and secure seal.

Cutting: After sealing, a cutting mechanism cuts the pouch or bag to the desired length, separating it from the continuous roll of packaging material.

Output: The sealed and cut pouches or bags containing seeds are then discharged from the machine onto a conveyor or into a collection bin.

Optional Features: Some back sealing machines may offer additional features like date coding, printing product information, or adding tear notches to the packaging for easy opening.

These machines are designed to streamline the packaging process, ensuring that seeds are securely and hygienically packaged for sale to consumers or distribution to other businesses.

The specific design and features of a seeds back sealing machine can vary depending on the manufacturer and the type of seeds being packaged. It's important to choose a machine that is suitable for the size and characteristics of the seeds you are handling, as well as the desired packaging format.