science

Wirtgen Group

Wirtgen Group is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Wirtgen Group rather than just read about it. In short: Wirtgen Group is an internationally operating German company in the construction industry. The company's core business is the development and production of machinery for road construction and maintenance.

Key takeaways

Wirtgen Group belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Wirtgen Group to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Wirtgen Group from memory before moving on to harder problems.

Reference excerpt

Wirtgen Group is an internationally operating German company in the construction industry. The company's core business is the development and production of machinery for road construction and maintenance. Wirtgen Group employs around 9,000 people around the world and its annual turnover is around €3 billion. It also has local manufacturing plants in Brazil, China, and India, 55 distribution and service offices and over 150 authorized dealers around the globe.

History In November 1961 Reinhard Wirtgen founded a small contracting business in Windhagen, Germany, starting with small haulage jobs and later specializing in road construction machinery with concrete breakers. Eventually Wirtgen expanded his fleet to 100 milling machines and 150 workers operating all over Germany. Reinhard Wirtgen progressed the product portfolio from hot milling to cold milling machines by the end of the 70s, which significantly increased the economic efficiency of the milling process. The international development of the company began when Reinhard Wirtgen set up the first subsidiaries outside Germany. Reinhard Wirtgen Buceta systematically expanded his product portfolio at the production plant to four product divisions. In 1981, Wirtgen built the first surface miners for opencast mining and routing operations in hard rock. From 1987 onwards, Wirtgen introduced cold recycling as an economical method of road rehabilitation. Two years later, he incorporated the slipform paver division into his company to offer solutions for the construction of concrete roads and poured-in-place concrete profiles. Jürgen and Stefan Wirtgen took over the management of the company in 1997. The expansion of the corporate group began with the integration of the road paver manufacturer Vögele. Hamm, a roller manufacturer, was integrated into Wirtgen Group in 1999. High investments in the three production plants resulted in the expansion of production capacities and efficiency, as well as a strong presence for the corporate group on a global scale. In 2006 Wirtgen Group consolidated into two business lines: "Road Technologies" and "Mineral Technologies". The second line was established with the incorporation of Kleemann, a German manufacturer of mobile and stationary processing plants. In 2014, the manufacturer of asphalt mixing plants Benninghoven was also integrated into the company. In 2017, Wirtgen Group entered into a definitive agreement with John Deere to be purchased for $5.2 Billion.

Product brands

Wirtgen GmbH Wirtgen GmbH is located in Windhagen in Rheinland-Pfalz, and it is the youngest and largest subcompany of the corporation. Wirtgen GmbH produces road milling machines and cold recyclers, as well as Surface miners for open cast mining operations.

Joseph Vögele AG Joseph Vögele AG is based in Ludwigshafen am Rhein in Rheinland-Pfalz. The company is the world market leader for asphalt pavers and belongs to Wirtgen Group since 1996.

Hamm AG

HAMM AG, founded in Tirschenreuth in Bayern, is specialized in compaction technology. It is part of Wirtgen Group since 2000 and it manufactures road and soil compactors.

Kleemann GmbH Located in Göppingen in Baden-Württemberg, KLEEMANN GmbH manufactures crushing and screening plants. It is part of Wirtgen Group since 2006.

Benninghoven GmbH & Co. KG

BENNINGHOVEN GmbH & Co. KG, located in Wittlich in Rheinland-Pfalz, is one of the largest recycling and asphalt mixing plant manufacturer in Germany. The company belongs to Wirtgen Group since 2014.

Local production sites

Ciber Ciber Equipamentos Rodoviários is Wirtgen Group's local production facility for Latin America and completes the comprehensive product range with its own brand. The brand headquarter is located in the southern state of Rio Grande do Sul in Brazil, in the city of Porto Alegre. Ciber manufactures hot mix asphalt plants and pavers on five production lines. It also produces a model from the Wirtgen cold milling machine line and a Hamm roller, each of which are adapted to the requirements of the local market.

Wirtgen China The local production facility for China is established in Langfang, near Beijing. The production range includes selected models of WIRTGEN cold milling machines, VÖGELE road pavers and HAMM rollers. Around 380 employees work in an area of 200.000 m2.

Wirtgen India The new head office of Wirtgen India is located in the vicinity of Pune, an industrial center in the northwest of India. 672 employees work in the 129,100m² production area, producing two models of Hamm single-drum model 311 and multi-drum model HD99 compactors, Kleemanscreens and Vogele pavers

Media gallery

References

External links Official website

Illustrations

Worked examples

Example 1 — a first encounter with Wirtgen Group

Start with the simplest possible case. Write down what Wirtgen Group claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Wirtgen Group before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Wirtgen Group ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Wirtgen Group

In research: Wirtgen Group appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Wirtgen Group in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Wirtgen Group is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2017 mergers and acquisitions, Companies based in Rhineland-Palatinate, Construction equipment manufacturers of Germany, so understanding it makes those chapters shorter.
In everyday life: Look for Wirtgen Group outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Wirtgen Group in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Wirtgen Group means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Wirtgen Group out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Wirtgen Group in simple terms?

Why does Wirtgen Group matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Wirtgen Group?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Wirtgen Group.