This bottom sealing machine is two layer four line, it is high speed and easy to operate. Features: Frequency speed converter for the major motor. Hot sealing with constant temperature ,enhancer for hot sealing the spare optional side and corner Main technical parameters: Model: BH-BS800X4 Max. bag making width:380X4MM Max. bag making length: 650MM Bag making speed: 30-150p/min Total power: 5kw Weight: 760kg Overall size: 2.6mx1.4mx1.8m