An ideal shrink packaging machine should have a temperature, conveyor speed, power supply, and air cooling controllers. Such controllers allow you to run operations in the desired setting. Height adjustment of a shrink tunnel or shrink chamber is also beneficial. Some machines may be equipped with automatic temperature controls. https://www.addpack.co.in/are-you-buying-a-shrink-packaging-machine-for-your-factory-here-are-7-essential-features-to-help-you-choose/