（China）YYP 133 Heat Seal Tester

Using the hot pressing sealing method, the sample to be sealed is placed between the upper and lower hot sealing heads, and the sample is sealed under the pre-set temperature, pressure, and time. It is suitable for determining the parameters of the hot sealing temperature, hot sealing time, hot sealing pressure and other hot sealing composite films of plastic film substrate, flexible packaging composite film, coated paper and other hot sealing composite film, so as to provide users with accurate hot sealing test indicators.