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xxx 2011-09-15

AATExpo 2011: Tightening Reliably with Wireless Technology New transducerized cordless nutrunner for increased versatility

AATExpo 2011: Tightening Reliably with Wireless Technology

No more tool cables to restrict operator movement or become entangled: Wireless technology improves ergonomics and productivity at hard-to-reach screw bolt positions and in assembly line production.

The new series of cordless nutrunners from Rexroth, with torque and angle measuring function; integrated control system and wireless interface, greatly increases versatility in the assembly process. Applications such as working inside a car, where there is hard-to-reach bolt positions are where this product really excels. At the same time the wireless technology also improves ergonomics in walk-with applications and increases productivity, since workers are not burdened by cables.

The intelligent cordless nutrunners combine wireless technology with the advantages of the proven ErgoSpin nutrunners from Rexroth for all safety-critical connection points of Category A according to VDI2862. Results are stored and can be output for documentation purposes. An integrated transmitter securely sends data to the receiving station such as a standard end-user WLAN access point. Control electronics buffer data in the nutrunner in the event of a temporary disconnect and forward it as soon as the network is available again. This ensures that all procedures are fully documented and provides for high traceability as well as playing a key role in process reliability.

Due to state-of-the-art electronics, the cordless nutrunner from Rexroth can easily be integrated into the existing infrastructure of a production environment. Fully integrated control and performance electronics eliminate the need for a series of components such as tool and communication cables that would otherwise be required. This simplifies the installation and reduces costs. A color display is provided for configuration and worker data directly on the nutrunners. The new cordless nutrunner, like its proven ErgoSpin counterpart, has an ergonomically optimized design for fatigue-free working. An integrated, high-intensity LED also allows the bolt location to be optimally lit, even in poor light conditions.

The series covers tightening applications up to 50 Nm. Power is supplied by long-life, high-performance lithium-ion batteries. The cordless screwdrivers are endurance-tested to 500,000 cycles by Rexroth under full-load conditions.

Visit Bosch Rexroth at AATExpo 2011 in Chicago’s McCormick Place, booth 1308.

For more information, please visit

Bosch Rexroth AG is one of the world’s leading specialists in the field of drive and control technologies. Under the Rexroth brand name, the company supplies more than 500,000 customers with tailored solutions for driving, controlling, and moving. Bosch Rexroth is a partner for Mobile Applications, Machinery Applications and Engineering, Factory Automation and Renewable Energies. The company provides customized solutions tailored to the needs and specifications of each individual market. As The Drive & Control Company, Bosch Rexroth develops, produces, and sells components and systems in over 80 countries. As part of the Bosch Group, Bosch Rexroth and its 34,900 associates generated approximately 5.1 billion euros in revenue ($6.8 billion) in 2010. To learn more, please visit

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 ($62.7 billion) 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. Additional information can be accessed at,


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