Reference fields

eta|vac BP-30

Handling tasks can be found in almost every industry across all sectors. Our eta|vac BP-30 bellows pump is designed for efficient handling of a wide variety of products without compressed air. With a continuous vacuum volume flow, the permanent generator can be used for many applications as an efficient counterpart to cost-intensive, compressed air-operated ejectors. Exemplary applications can be found in sheet metal processing, the furniture industry or for handling processes in the food industry. The eta|vac BP-30 can be used in the following three reference fields.

Sheet metal processing

The video shows the handling of trowel plates with a weight of almost 200 grams. The sheets have a smooth but oily surface and are lifted in a relatively dirty and dusty environment in a rapid process. The sheets are fed into the handle assembly process using a linear translatory movement with a constant total cycle time of 6 seconds. The required vacuum is solely provided by one eta|vac BP-30. In comparison to the initial situation before the optimization, no changes were made other than the replacement of the vacuum generator (compressed air operated ejector). Due to the optimization of the vacuum generation by an eta|vac BP-30 there are no restrictions regarding the process speed or the process safety, but rather significant saving potentials in the area of energy costs/operating costs. The noise emissions could be reduced by about 20 decibels compared to the compressed air operated ejectors used so far. With an operating cost saving of more than 95 percent for this application, additional 4.2 tons of CO2 can be saved annually.

Automotive industry

The video shows the handling of sheet metal with a weight of about 10 kilograms. The sheets have a smooth, slightly oily surface and are moved in a relatively clean and dust-free environment. Within the handling process a three-dimensional movement with a constant cycle time of 15 seconds is realized by the suction unit. Via the eta|vac BP-30 a decentralized vacuum is generated directly at the handling device. Compared to the initial situation before the optimization, no changes were made other than the replacement of the vacuum generator (compressed-air operated ejector). The cycle time and the performance maintained the same after optimization. By converting to the eta|vac BP-30 not only considerable savings potentials in the area of energy costs/operating costs could be achieved, noise emissions have been significantly reduced as well. The additional costs for the optimization will be amortised after only 13 months.

Plastics Industry

The video shows the handling process of product carriers, so-called trays, with a weight of around 500 grams. Other than the actual product, the quality of the trays is not that constant. The surface of the trays is relatively clean, but varies in condition, because the trays are often scratched, cracked or damaged by the transport in boxes. The environment near the injection moulding machines is relatively clean. The product carriers, equipped with the actual plastic products, are moved in a three-dimensional movement with a constant total cycle time of 60 seconds with about 70 percent suction time. An eta|vac BP-30 generates the vacuum required for handling; it is connected to the base of the handling unit with a hose, which is about 8 meters long. In comparison with the initial situation before the optimization, a new suction cup concept (improved arrangement of new suction cups) was implemented in addition to the replacement of the compressed air-driven ejector. The substitution of compressed air by the use of an eta|vac BP-30 almost halved operating costs by cutting 48% energy consumption. Analogous to this, CO2 emissions could be reduced to the same extend and a significant reduction in noise emissions could be achieved as well.

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