Horizontal packaging machines designed for the above task can be subdivided into 2 types:

FS machines

These are the machines which open up a pouch, fill a product & seal the top seam. The Laudenberg machines are based only on servo drives & mechanical assemblies which ensure 97% efficiency & economy of a package due to precision of the delivery & a system which will exercise control of a pouch filling thus ensuring that not a single pouch remains unfilled.

Rapidity of the Laudenberg format change ensures the machine switching over from one product to another within 15 minutes.

FFS machines

These automatic machines form a pouch from a reel, fill a product into the resulting pouch & seal the top seam. The Laudenberg machines are ideally suited for solving the problems related to gentle preservation since they have resolved 2 principally important aspects.

1. A dosing system
Currently this is the most critical challenge. Since in the production of tinned products raw or half-finished products are used (meat, vegetables, fruit, fish, etc.) the problem related to a product adhesion, i.e. sticking to the doser surfaces must be solved. I am not going to disclose all secrets here and just say that 3 ways for solving the problem can be offered
- bring a product readiness up to parameters acceptable to dosing;
- employ a product sprinkling prior to dosing;
- make use of cooled & desiccated air during dosing.
Anyway, the production of such dosers is a challenge & Laudenberg is successfully solving this complicated problem.

2. A sealing system
In this case the patented senso seal system is used which ensures 100% tightness of all sealed seams & their ability to endure huge rupture loads in the autoclave. In view of this it should be noted that simple seal drives on machines are not able to ensure tightness, therefore, special systems enabling to achieve uniform & controllable compression force exerted оn the film during sealing are employed. This is the only way to ensure a seam quality.

Talking about the top seam – ingress of a product or fat on the seam leads to a seal failure. Only high-tech companies are capable of handling this problem. Laudenberg appeared to be an innovator. By making use of a special ultrasonic sealing which does not melt the materials but forces the film molecules to coalesce Laudenberg has increased the output of qualitative pouches from the autoclave as high as 100%. No matter whether fat is available or not in the sealing area the Laudenberg ultrasonic unit will seal everything and in each case this will be tight.