Application
filling tube: round or rectangular
form of the seal: protruding fin seam on the side or in the middle
These Forming shoulders are used in the production of a classic bag shape, the three-side sealed bag. It is applied to packages of small portions e.g. of sugar, mustard or tomato ketchup but also for bigger bags.
We offer two different versions of this forming shoulders:
- with distant fin seal in the centre of the bag (symmetric forming shoulder)
- with distant fin seal on the edge of the bag (asymmetric forming shoulder)
Benefits
The symmetric forming shoulder saves installation space and offers a small falling height for your product.
The asymmetric forming shoulder variant is ideally suited for use in standard tubular bag machines. The arrangement of all assemblies remains the same. The film running direction is retained. Only the welding element for the longitudinal seam has to be able to be moved laterally.
- easy to integrate
- increase the diversity of the products your standard machine is able to produce
- applicable to multilane machines.
Limits
Compared to a standard tubular bag machine, the symmetrical forming shoulder variant requires a film infeed rotated by 90°.
The asymmetrical forming shoulder variant requires a greater forming shoulder height compared to the symmetrical forming shoulder variant.
Find out how to make three-side sealed bags from a double tube.