"The application of stretch film to pallets by hand is a slow and tedious job. Hand wrapped pallets are rarely secured with the optimum number of wraps, or with the ideal level of tension. Automatic machines are available for virtually all medium to high volume pallet wrapping operations:

Core brake machines

Film tension is set by adjusting a braking mechanism on the film core. Height and number of wraps may be preprogrammed. Suitable for relatively low output and light protection environments."