Carriage with dual roller pre-stretch system activated from control panel. The carriage is fitted with fixed 250% pre-stretch. By activating “Stretch control”, the carriage switches to stretch variable of electromagnetic clutch positioned on the first roller. The “QUICK LOAD SYSTEM” allows for easy and quick film loading.
The relationship between gear wheels and number of teeth determine the difference of speed between slow roller and fast roller, which deteremines pre-stretch ratio.
Example: with a pre-stretch ratio of 200% the machine can wrap products using only one coil instead of three coils.