Heat Sealing Tester for Flexible Packaging is suitable for heat sealing test of various plastic film, plastic composite film, paper-plastic composite film, co-extruded film,aluminized film, aluminum foil, aluminum foil composite film, etc.It can accurately determine the appropriate heat sealing temperature range,heat sealing speed,heat sealing pressure.It provides scientific, accurate, and efficient heat seal quality evaluation for packaging development and quality control.