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Serac blow linear units can create new bottle designs

Source:Ringier Food Release Date:2016-06-03 404
Food & Beverage
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With a preferential heating module, SBL units can produce new bottle designs suited for viscous liquids

Serac’s stretch blow molding units, dedicated to on-site manufacturing of PET bottles, can now be equipped with a preferential heating module ideal for blowing new bottle designs for liquid foods such as edible oils, sauces. This solution has already been adopted in France by a leader of eco-friendly detergents products.

The Serac Blow Linear (SBL) technology proposed as stand-alone machines as well as in single-block blow fill cap equipment, covers all manufacturing needs, from mass production of wide and deep product ranges to niche markets.

New shapes

PET is increasingly preferred on other markets besides beverage because it offers lower raw material cost, higher energy-saving process and recycling properties. As the material of choice for squeezable bottles, it is best for highly viscous products such as ketchups or mayonnaises. Moreover PET is flexible to work around, to wit:

First, it allows numerous design possibilities, which is a major advantage for manufacturers that want packaging that isn’t only eye-catching products that require eye-catching packaging that are also easy to hold and use.

Second, when used crystal clear transparency reveals the product it contains (color, texture) and thus allows to have a single bottle for a whole range.

Third, the extremely precise neck finish offers perfectly tight closure for low viscous liquids and easy adaptation to different capping systems (the same bottle can be fitted with a flip top cap for the first purchase and with a screwed cap for refills).

Serac bottle designs

The many possibilities with preferential heating

Selective heating of PET preforms is necessary to obtain homogeneous material distribution on flat and oval bottles as well as complex shapes. The preferential heating solution proposed by Serac has been designed as a complementary device that can be installed or removed without any tools, in just 15 minutes. This way, manufacturers can easily produce round and more complex bottles on the same equipment.

After continuous heating in the first oven, preforms enter the second oven where cams operate predefined discontinuous rotations. This way, some surfaces of the preform get hotter than others which results, at the blowing stage, in controlled uneven expansion into the mold.

Integrated in flexible PET linear stretch blow molding units

The preferential heating solution from Serac benefits from the high-quality SBL linear blowing technology that can stretch lightweight preforms up to their limits with a homogeneous bottle thickness and no risk of neck deformation.

Ultimate control of the blowing process is achieved through extremely precise heat profile management and smooth transfer system.

Flexibility is ensured through fast and effortless mold changeover, that takes only 10 minutes and thus helps manage wide product ranges with reduced downtimes.

Serac Blow Linear series covers most production needs

The SBL series has been designed to produce bottles up to 5 liters at output rates up to 18,000 bottles per hour.

SBL machines can be integrated as stand-alone units to existing lines, or supplied as global blow fill cap equipment. Combox single-block blow fill cap units are becoming increasingly popular because of their cost-efficiency and flexibility. They represent a lower investment since they do not require peripheral devices such as silos, orientators and conveyors. They generate savings on maintenance operations with less devices and spare parts and can be driven by a single operator.

They also offer a higher OEE through a better integration of the different functions and much faster changeovers.

With production outputs and price positioning optimized for small to medium-sized production batches, Serac’s SBL units equipped with the preferential heating option enable manufacturers to highlight their brand through new bottle designs and develop value-added market segments.

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