PI 080-13 Lohr am Main, 2013-08-16

Process-safe assembly of screws while saving costs


The Rexroth hand-held nutrunners of the CC-ErgoSpin product line enable a high degree of process reliability and long work times with minimal fatigue. Operation is carried out with the BS350 operating

Conduct function-critical tightening operations according to VDI/VDE 2862 with the new CC-ErgoSpin hand-held nutrunner

With the new Rexroth CC-ErgoSpin product line, users can now save money when conducting function-critical tightening operations according to VDI/VDE 2862: The ergonomic hand-held nutrunner optimizes the process and reduces scrap. Compared to pneumatic nutrunners the efficieny and reliability of the Rexroth tool ensures better process control and, thus, a higher degree of process reliability.

Component, screw, torque and angle of turn have to be perfectly matched to meet the requirements of quality and cycle time. Function-critical tightening operations, which are now found in countless branches of industry, are the specialty of the new Rexroth CC-ErgoSpin hand-held nutrunners. Especially designed for B-tightening operations according to VDI/VDE 2862, the nutrunner determines the required torque via the current control. The user operates and programs the CC-ErgoSpin via the intuitive Rexroth BS350 operating software. It contains statistical tools for detailed analysis of the tightening case. This prevents faulty tightening operations, decreases scrap, minimizes warranty costs and ensures a high degree of process control. The operating software can be used universally with all Rexroth nutrunners for A and B tightening operations.

The CC ErgoSpin stores up to 99 tightening programs that can be assigned to a specific component via a bar code scanner, for example. The nutrunner can thus replace several pneumatic nutrunners. This allows for clarity and space and saves costs: Compared to compressed air technology, the CC ErgoSpin cuts the total cost of ownership in half and uses up to 95 percent less energy, thereby conserving resources. Four sizes with working ranges from 2.4 to 40 Nm and output speeds of up to 1,090 revolutions per minute are available.

The robust design of the nutrunner allows for a long service life and has been tested under full load to one million cycles without maintenance. That makes it a safe and reliable tool, even in difficult environments, like oily workplaces. At the same time, the nutrunner allows for low-fatigue plant work due to its ergonomic handle design and low-vibration operation. Unlike with pneumatic nutrunners, noise production is low and the risks due to pressurized air lines are eliminated.

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, pneumatics, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 37,500 associates generated sales revenue of approximately 6.5 billion euros in 2012.

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The Bosch Group is a leading global supplier of technology and services. In fiscal 2012, its roughly 306,000 associates generated sales of 52.5 billion euros. Since the beginning of 2013, its operations have been divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 360 subsidiaries and regional companies in some 50 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 some 4.8 billion euros for research and development in 2012, and applied for nearly 4,800 patents worldwide. The Bosch Group’s products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is “Invented for life.”

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