The SFL Maxi 1 is a SIPA solution for small- and medium-scale production of the largest types of PET containers. It is part of a small recently-rebranded family of SFL Maxi machines that take molds with two or three cavities, or one extra-large single-cavity mold (they were previously called SFL 2/2, SFL 2/3, and SFL 1 XL).
One big bottle at a time
As its name suggests, the SFL Maxi 1 blows one bottle at a time. It is ideal for production of returnable bottles at a rate of around 250-300 units per hour, or 600-700 one-way types per hour, depending on shape and size. Neck finishes up to 80 mm are possible. It is a perfect fit for segments as water, beer, wine, vegetable and mineral oils, and household chemicals.
The unit on the Interpack stand is producing a concept container designed by SIPA. It caters for a trend in the vegetable oil market towards larger formats.
Numerous features on the SFL Maxi are geared to the most cost-efficient production of large containers. For example, preforms are constantly rotated for a perfectly symmetrical distribution of heat. Ventilated ovens maintain the preform internal temperatures at a sufficiently low level, avoiding excessively high temperatures on the external wall of the preforms.
Preforms pass in front of 16 infrared lamps lined up on one side, with mirrors having vertical slots on the other side. As an option, 45-degree or 90-degree lamps are available in order to heat up special preforms. The system is supplied in its standard configuration with two ovens; a third oven is optional.