• Motor powered pre stretch gives possibilities for a very good film economy.
• Possibility of very high pre stretch with good film quality.
• With the motor it is possible to vary the film tensions between high and low ratio.
• Low film tension is necessary when the palletised goods is sensitive, very light,
  has uneven sides, sharp edges or is considerably smaller than the pallet.
• Normal setting of gear change: approx 150-250%.
• Pre stretch measured on the goods is to great extent determined by
  the film tension set and can be higher but is generally lower than the gear set.
• The most flexible system for diverse types of goods.

Explanation power pre stretch unit

• The filmfeed is driven by a servo motor which is powered by DC current.
• The pre stretching of the film is achieved between the two geared rollers.
• Seven/eight (depending of machine) different pre stretch can be selected,
  up to 400%. Filmfeeding is set automatically from choosen value.