PI 024-15 Lohr am Main, 2015-06-01

Increased safety for stage engineering equipment

The use of increasingly powerful drives has resulted in intensive safety-related discussions in the field of stage technology. Comprehensive tests and simulations provide important results during the measurement of load peaks for various emergency stop scenarios. Rexroth offers solutions for hydraulic and electromechanical drives that provide reliable protection for actors, scenery and equipment.

The trend towards increasingly powerful drives for stage engineering applications has resulted in upper stage machinery with load capacities of up to one ton at speeds up to 1.8 m/s. "Series of tests at these capacities indicated that we could not simply continue using the construction design we had been using until now," explains Volker Kirsch, Director Sales Stage Technology at Bosch Rexroth.

Rexroth engineers performed extensive series of tests in a test field specially constructed for typical stage engineering drive systems. The result: Tests were performed in a test set up that was designed to closely recreate the conditions found in a theater. The results showed that the load to be moved and the drive were subjected to loads far greater than twice the nominal load. This means that all components in the force flow have to be designed to be far stronger.

Manufacturers and users now must face the new challenges. Bosch Rexroth has already turned the test results into solutions. For instance, safety equipment based on hydraulic components from Rexroth exhibits significantly softer emergency stop behavior. Rexroth has designed a damping device especially for electromechanical winches, which ensures soft emergency stop behavior on stage engineering systems. These devices can be easily implemented in new systems and in existing set-ups.

Rexroth will be comparing relevant variants under real conditions at their StageISetIScenery trade fair stand. Moreover, a special smart measuring instrument on a real fly winch will enable visitors to understand how soft-actuation brakes and an emergency stop absorber work.

Bosch Rexroth at StageISetIScenery: Hall 2.2, Stand 202

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, Factory Automation, and Renewable Energies to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 33,700 associates generated sales revenue of approximately 5.6 billion euros in 2014.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 360,000 associates worldwide (as per April 1, 2015). The company generated sales of 49 billion euros in 2014.* Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiary and regional companies in some 60 countries. Including its sales and service partners, Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2014, Bosch applied for some 4,600 patents worldwide. The Bosch Group’s strategic objective is to create solutions for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Additional information is available online at , and

*The sales figure disclosed for 2014 does not include the former joint ventures BSH Bosch und Siemens Hausgeräte GmbH (now BSH Hausgeräte GmbH) and ZF Lenksysteme GmbH (now Robert Bosch Automotive Steering GmbH), which have since been taken over completely.


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Susanne Herzlieb
Maria-Theresien-Straße 23
97816 Lohr am Main
Phone: +49 9352 18-1573

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