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Schenck Passion for Balancing Logo About us

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Our vision, our history Passion for Balancing – since 1881.

Turning good products into excellent products – this is our passion and our promise: our technologically leading balancing solutions facilitate safe, resource-efficient manufacturing of products used by billions of people every day. Find out more about us and our success story.

Our vision Our sustainable solutions drive resource efficiency to peak levels in the mechanical engineering sector. For our customers, for society and for the environment.

About us

What we stand for

We combine economic efficiency with sustainability.

Balancing means high productivity, long service life and lived sustainability. Because precisely balanced parts work more efficiently, thus saving valuable resources. This applies equally to precision dental turbines or car steering wheels, aircraft engines or power plant turbines. 

We take this responsibility very seriously and guarantee uncompromising quality, sustainable solutions and comprehensive service throughout the entire service life of your product.

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We develop unique balancing solutions

What makes us particularly proud: our solutions for all components and armatures are globally unique. We offer balancing machines and software solutions for all weight classes and every size – from wheel assembly to diagnosis technology, from the repair workshop to mass production. 

In combination with our experience from nearly 150 years of company history and our sites in 54 countries all over the world, this makes us the leading partner for industry and the skilled trades.

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Schenck RoTec GmbH

Facts about us

World market leader for balancing solutions

Founded by Carl Schenck, the inventor of the balancing machine

More than 1,100 employees all over the world

Sites and services in 54 countries worldwide

Production at 6 sites in Europe, America and Asia

Subsidiary of Carl Schenck AG and DÜRR AG

Our history

From pioneer to global player

110 years on the trail of imbalance

On October 1, 1881, Carl Schenck founded his “iron foundry and weighing machine factory” in Darmstadt, which is now Carl Schenck AG. As early as 1863, “Commerzienrat Carl Heinrich Johann Schenck” had co-founded the Mannheim-based company “Schenck, Mohr & Elsässer,” where automotive pioneer Carl Benz also worked as a technical employee.

In 1881, Carl Schenck left the Mannheim company and founded his own weighing machine factory in Darmstadt. His prudence, international orientation, and presence at world exhibitions ensured early success and a healthy order book for the young Darmstadt-based company. Thanks to this dynamic development, the company began developing and producing balancing machines in 1907.

Carl Schenck, who had been working intensively on the subject of “balancing,” signed a license agreement in 1908 with Lawaczeck, who was the first to develop a usable solution for a “balancing machine.” In 1915, Schenck acquired the exclusive license for the entire world. The “Lawaczeck principle” remained in use until the 1940s.

During this phase, a number of other optical and mechanical measuring methods were developed that offered astonishingly high measuring accuracy. The “Lawaczeck design” achieved a balancing accuracy of 0.001 mm center of gravity displacement. This would still be sufficient for many applications today.

In 1935, a change was on the horizon – thanks to a machine patented in the USA with electrodynamic vibration sensors and stroboscopic imbalance angle determination.

In 1942, Schenck filed a patent for a “method and device for dynamic balancing by determining the angular position of the imbalance using a curve recorded periodically on an oscilloscope screen.” This first production-ready solution was successfully used to balance ship gyroscopes during World War II due to its measuring accuracy.

The wattmeter method, the next step in the development, suppressed undesirable parasitic vibrations. With the basic components known at this time, i.e. wattmeter, vibration sensor and angle reference generator, it was possible to determine the position and magnitude of the unbalance in one measuring run. Unbalance values were displayed on two pointer instruments.

In 1953, the light spot vector meter brought further improvement. The combination of both values in one display and the “storage” of the measured values by a light spot on the screen simplified balancing. The imbalance was now visible. Even today, the vector meter is still a proven method for displaying the position and size of the imbalance in modern screen measuring devices.

Parallel to the development of “workshop machines” – today referred to as universal machines – the automation of balancing continued to advance. “Balancing machines” for crankshafts determined the imbalance and specified the drilling depth for the drill machines to compensate for it. The measurement run, compensation, and control run took about 2 minutes for a crankshaft.

The mechanical foundations for balancing were laid in the 1970s. Electronics slowly conquered balancing and diagnostic technology. In 1971, the electronic, wattmetric measurement method was introduced. The first computer-controlled balancing systems were introduced in 1974.

The next major change came with the advent of digital technology: from the early 1980s onwards, computers with microprocessors also conquered measurement technology and continue to dominate it to this day. Starting with the CAB 690 and CAB 720, today the CAB 820 and CAB 920 represent the fourth generation of measurement technology in service.

In 1995, as part of the restructuring of Carl Schenck AG, the balancing and diagnostic technology divisions were merged to form an independent company – Schenck RoTec GmbH.

From a technical perspective, one of the most impressive highlights of this period was the creation of the world's largest geotechnical centrifuge for soil physics research. The CRYO centrifuge, which is used to further develop components of the Ariane 5 rocket engine at temperatures close to absolute zero, broke new technological ground.

In 2000, the globally active technology group DÜRR AG, based in Stuttgart, acquired a majority stake in Carl Schenck AG.

Energy saving, noise reduction, and efficiency improvement were the predominant themes of the first decade of the new century. In 2009, the testing laboratory for balancing technology received official accreditation from the German Accreditation Body for Technology (DATech). For the first time, users and service providers can have their testing equipment and measurement technology certified in a manufacturer-neutral manner – documentable and traceable to international SI units.

09.01.2024

A Versatile Portable Balancer with Numerous Capabilities

Rotor unbalance is responsible for more than 50% of machine and plant faults. The SmartBalancer 4 from Schenck has been developed to solve this problem directly on-site. This portable measuring unit allows service and maintenance technicians to identify and correct for vibration and unbalance on rotating equipment installed in the field. The highly efficient measuring unit offers a wide range of analysis functions including a new SmartBalancing mode.

The SmartBalancer 4 is a portable balancer for preventive maintenance, quality assurance and repair technicians. The SB 4 can analyze rotors of any size and weight in-situ at speeds of between 120 and 80,000 rpm using up to 6 sensors simultaneously, and field balancing in two planes.   Several analysis functions allow for an even more comprehensive evaluation of machine condition.

User Friendly and Packed with Features

The Smartbalancer is designed for ease of use with its robust touchscreen, high-resolution color display, clear graphical display of measured values, and intuitive user guidance.

The new SmartBalancing mode combines measurement of overall vibration and frequency analysis within the balancing process. Instead of mulitple measurements, this measuring function allows all basic analysis to be carried out in a single measuring step before, during, and after the balancing process. This saves time on site and provides a clear overview of the machine status at all times. The SmartBalancer 4 calculates the necessary unbalance correction in 1 or 2 planes, displays the results in a vector diagram, and analyses the vibration at up to 6 measuring points.

The range of applications of the SmartBalancer 4 can be extended even further with the advanced analysis package to include even more detailed FFT frequency analysis, bearing envelope spectra to determine machine bearing condition, time and phase measurements as well as a bump test.

Analysis and balancing data are stored directly in the unit. After measurement, these can be transferred directly to a PC as a balancing report or screenshot.

The device is part of the new handheld product range, which also includes the Smart VibroAnalyzer 90 & 95.

 

Find out more about the SmartBalancer 4 here.

About Schenck RoTec

Schenck RoTec is the global market leader in the field of balancing solutions. The company has 17 subsidiaries and joint ventures, and seven production sites worldwide. In addition, there are over 36 representatives and offices across all five continents. The Schenck RoTec Group supplies industries such as automotive and automotive suppliers, electrical engineering, aerospace, turbomachinery, and general mechanical engineering with innovative technologies.

Schenck RoTec is part of the Dürr Group, one of the world's leading mechanical and plant engineering firms with particular expertise in the technology fields of automation, digitalization, and energy efficiency. Its products, systems, and services enable highly efficient and sustainable manufacturing processes – mainly in the automotive industry, for producers of furniture and timber houses, as well as in the assembly of medical and electrical products and in battery production. The Dürr Group generated sales of €4.7 billion in 2024 and currently has around 18,000 employees and 130 business locations in 32 countries. Since the sale of its environmental technology division at the end of October 2025, the business has been consolidated into three divisions: 

  • Automotive: painting technology, final assembly, testing and filling technology
  • Industrial Automation: assembly and test systems for automotive components, medical devices, and consumer goods as well as balancing technology solutions and coating systems for battery electrodes
  • Woodworking: machinery and equipment for the woodworking industry

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