State-of-the-art machines worldwide

Production technology

The wide product portfolio of Greiner Packaging is based on a number of plastic packaging production technologies. This technological versatility ensures that our customers receive objective advice ideally tailored to their individual plastic packaging technologies needs. All of these plastic packaging technologies are available to both multinational and domestic clients. 

This technological diversity of plastic packaging products is continuously being expanded through regular investments, benefiting all of our customers in need of highly diversified plastic packaging technologies.

Sheet extrusion Sheet extrusion
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Sheet extrusion

Plastic granulate is melted and forced through a shaping nozzle to become a thermoelastic sheet, which is then rolled up after cooling. The manufacturing equipment allows the production of multi-layer sheets. A recycling film can be incorporated in the middle layer.

Materials used: primarily PP and PS

Thermoforming Thermoforming
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Thermoforming

The extruded film is fed from the roll to the thermoforming machine where it is heated. The thermo-elastic sheet is then stretched forward in the tool and molded by compressed air, cooled down and punched.

The cups are ejected and stacked, then further processed or packed, depending on the respective application. The skeleton sheet is ground right at the machine and later processed as raw material into the middle layer during sheet extrusion. 

Materials used: thermoelastic sheets made of PS, PP, PET, R-PET

Products: e.g., yogurt cups, butter dishes, lids, and trays 

Injection molding Injection molding
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Injection molding

Plastic granulate is smelted, injected into the desired shape under pressure, cooled, and automatically extracted or ejected.  Almost every shape, even those with undercuts, can be manufactured using the injection molding procedure. 

Materials used: primarily PP, PS, PE, PA and PC

Products: primarily special packaging

Blow molding Blow molding
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Blow molding

A tube is extruded, cut off, and transferred to a shaping tool where it is inflated with compressed air. 

Materials used: PE, in particular

Products: bottles, canisters, cans

Injection stretch blow molding Injection stretch blow molding
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Injection stretch blow molding

The granulate is smelted and injection-molded into a preform that already has the finished opening of the product. The preform is then stretched forward in a second tool and, using high pressure, blown into the blow molds for the finished product. Injection and blowing are done as part of a process, so that the residual heat in the preform can be used efficiently. 

Materials used: primarily PP and PS.

Products: 5-gallon water bottles (BPA-free), spice jars, tubes for mustard, baby bottles (BPA-free)

Among all plastic packaging technologies used, Kavoblow is an in-house development of an injection blow molding machine. The linear movement of the preform, from the injection molding machine to the blowing station, makes it possible to use tools on this machine with a higher number of cavities. 

Materials used: PET, PP

Products: primarily honey, sauce and mouthwash bottles, cleaning agents, etc.