Thanks to their 30 years of experience in the pet food sector, manufacture that offer flexibility and increased outputs, featuring many patented devices that allow an unprecedentedly accurate handling and sealing of the most advanced PE, PET and PE-Alu-PE gusseted bags demanded by pet food marketing departments. Moreover, Concetti bagging machines now feature an innovative device for inserting and sealing a pre-formed zipper onto the top of an ordinary PE bag.
THE CONCETTI RANGE FOR PREFORMED BAGS
All Concetti bag filling and closing machines are monobloc structures that constitute an integrated unit for safe, clean and reliable packing. Let us focus for example on the for pre-formed bags. This filler features two discharge spouts and two empty bag magazines to ensure an output of up to 1800 bags/hour. Users benefit from the most flexible bagging system available on the market. The IMF is designed to run all bag formats from 1 kg right through to 20 kg, both gusseted or flat bags, while the bag material can be coated paper or PE, PET, aluminated PE, etc. Moreover, bags with carrying handles, bags with lateral carrying handle, with easy-peel and front or top zipper, hooded bags, stand-up pouches, single-lip bags, bags with Quattro-seal or Stabilo-seal - all these innovations can be worked with Concetti’s IMF.
The actual filling operation is one to which Concetti have dedicated special attention. Opening a gusseted bag for filling requires care to ensure the shape is not lost and the gussets are properly reformed. Concetti machines are equipped with special devices for holding and restoring gussets of bags with different sizes and formats. In addition, they also come with patented systems for quad seal or stabilo bags. These bags have vertical seals on the four lengthwise edges to improve stability and appearance on the shelf but are difficult to handle automatically and hard to realign precisely when closing. Without Concetti’s patented system, arranged to give all-round gripping of the bag, proper opening and realigning of the quad seal bags is simply left to chance.
Heat-sealing of PE bags is a science in itself. The IPF, IGF and IMF all designed by allow the bag to be closed at different heights on the bag face. For example, the seal can be exactly at the top edge, below the carrying handle or many centimetres below the top edge. It is also possible to have two sealing lines on the same bag, where the distance between the two seals is set by program according to the bag features, one seal at the top edge and a second one below the carrying handle. Furthermore, the sealing line itself can vary in height from 4 to 20 mm.
BAGS FROM A TUBULAR REEL
The series of form, fill seal machines encompasses many of the technical features highlighted so far, while offering one additional advantage: cost-effectiveness. Today, the market offers tubular reels fabricated from various materials, ensuring the best protection for the product. And reel graphics can be extremely attractive. But still, the tubular reel stock represents the lowest cost way to create a strong and safe bag.
Concetti manufacture a complete range of bag palletizers from single column pick and place robots to low and high-level layer machines. But for maximum flexibility in petfood applications the is the preferred solution.
The gripper tool takes one or two bags at a time from the roller conveyor and places it on the stripper plate, at a point assigned by the program. The bags can easily be overlapped partially along the top or the side if required. The layer can be arranged in any convenient pattern regardless of the bags shape or how full they are. Once a layer has been completed, it is compacted on all four sides and the stripper plates open to unload the layer onto the pallet below.
Because Concetti specialize in complete including weighing, bag filling, palletizing, metal detectors, checkweighers, etc., it is easy to link these separate devices to form one integrated system so the programme for the complete line is changed at one location without the use of tools. This makes the operator’s job easier with less risk of set up errors, reduces the changeover time and increases productivity. Pet food producers with many different products, bag weights, sizes and short job runs will find this very appealing.