Liquid filter bag automatic welding equipment：
The whole roll of fabric enters the machine, the fabric is welded into a cylindrical shape by hot air, enters the buffer area, and the tail (arc shape) is ultrasonically welded and cut into an arc shape, and then cut, and a semi-finished liquid filter bag is produced. Then the plastic ring is welded by ultrasonic welding.
Machine video：https://youtu.be/x-TBRnAkQo8
