Bosch System Produces First Single-Wrap Die-Fold Package with Hermetic Seals

o Utmost assurance of product quality and safety due to air tight seal

o Precise folds achieved for premium package look

o Machine designed for gentle product handling and heat minimization

Bosch Packaging Technology presents the new Starpac 600 HL wrapping machine at Interpack 2011 in Düsseldorf. The wrapping machine, launched by the Bosch company Sapal, closes packages with hermetic sealing allowing for maximum protection of products in single-wrap die-fold packages. Now chocolate manufacturers can differentiate their products with the premium look of die-fold packages while guaranteeing quality and safety. The Starpac 600 HL wraps small- to medium-sized chocolates with an output of up to 600 pieces per minute. "This is a real alternative to the flow-pack wrapping", states Alexander Schmitz, General Manager of Sapal, a Bosch Packaging Technology company. "With the Starpac 600 HL we can offer our customers the advantages of a truly optimal product presentation in combination with absolute safety of the product and high productivity."

The addition of heat-sealed and airtight hermetic seals to die-fold packages maintains product freshness for increased shelf life and protects the product against insects and moisture. It also strongly preserves original aromas and flavors while denying penetration by external scents, such as from nearby products on store shelves. Consumers receive a tamper-proof yet easy-open package due to the machine's automatic application of tear-tape to the packaging material. To maintain the elegant appearance of die-fold packages, the Starpac 600 HL uses a folding box to create all folds at once for perfectly symmetrical side and longitudinal seals. This symmetry is achieved by the folding box's ability to maintain the precise position of wrapping materials with elastic properties, which cannot be ensured with multi-station folding. Not only does this feature ensure aesthetically pleasing packages but also maintains high seal integrity and minimizes material consumption.

Several features of the Starpac 600 HL are designed to further product quality. The belt infeed system with precise product spacing minimizes scratching and breakage of products as the unwrapped products are only touched on their lower surface. The hot glue needed to secure the longitudinal seal lap is applied on the wrapping material even before the products are introduced into the folding section, so thermo-sensitive products are not exposed to heat. Two transfer revolvers move the products quickly through the folding and sealing process, allowing for speeds of up to 600 products per minute, while the use of polypropylene (OPP) wrapping material is guaranteed.

The modular Starpac 600 HL is equipped with transparent machine protections on front and backside serving for optimal operator visibility and process control. Infeed belts in cantilever execution result in maximum hygiene benefits as crumbs easily fall into a tray and do not remain on the belt. This design also allows for easy belt change to streamline maintenance.


Alexander Schmitz

phone: +41 21 6335-400

Contact person for press inquiries:

Johanna Bauer

phone: +41 58 674 7416

The Bosch division Packaging Technology, based in Waiblingen (Germany), is one of the leading suppliers in the field of packaging technology. In 16 countries worldwide it develops and produces complete systems in packaging and process technology for the pharmaceutical, confectionery and food industries. Customized system solutions complete the service package. Bosch Packaging Technology's sales and service teams operate worldwide. More information at

The Bosch Group is a leading global supplier of technology and services. In the areas of automotive and industrial technology, consumer goods, and building technology, some 285,000 associates generated sales of 47.3 billion euros in fiscal 2010. The Bosch Group comprises Robert Bosch GmbH and its more than 350 subsidiaries and regional companies in over 60 countries. If its sales and service partners are included, then Bosch is repre­sented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent 3.8 billion euros for research and development in 2010, and applied for over 3,800 patents worldwide. With all its products and services, Bosch enhances the quality of life by providing solutions which are both inno­vative and beneficial.

Bosch is celebrating its 125th anniversary in 2011. The company was set up in Stuttgart in 1886 by Robert Bosch (1861-1942) as a "Workshop for Precision Mechanics and Electrical Engineering." The special ownership structure of Robert Bosch GmbH guarantees the entrepreneurial freedom of the Bosch Group, making it possible for the company to plan over the long term and to undertake significant up-front investments in the safeguarding of its future. Ninety-two percent of the share capital of Robert Bosch GmbH is held by Robert Bosch Stiftung GmbH, a charitable foundation. The majority of voting rights are held by Robert Bosch Industrietreuhand KG, an industrial trust. The entrepreneurial ownership functions are carried out by the trust. The remaining shares are held by the Bosch family and by Robert Bosch GmbH.

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