Roth Industries

Key takeaways

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

Reference excerpt

The Roth Industries GmbH & Co. KG is an internationally active company headquartered in Dautphetal. The company produces energy and sanitary systems as well as storage technology and plastic products. In addition, it operates in the field of machinery and equipment construction.

History The company was founded in 1947 by Heinrich Roth as a craft business (manufacturing wash boiler stoves and garden slab plates). Under Manfred Roth (1939–2025), the founder's son, the company developed into an internationally active group of companies with locations in Europe, North and South America and China from 1962 onwards. In addition, the company expanded its business activities in the 1960s under Manfred Roth's leadership into the field of heating and sanitary technology, producing, for example, heating oil tanks. Due to the susceptibility of steel tanks to corrosion when storing heating oil, the company decided to enter the field of plastics technology (large blow-molding technology for storage systems for fuels and biofuels) in 1970. Roth Industries also expanded the sanitary segment with the development of complete shower cabins. In 1977, the company Schlesinger, a manufacturer of machinery for brush and broom production, was integrated into the group. The following year, the Roth Werke GmbH was founded. In the 1980s, the company began offering energy systems such as underfloor heating systems. In 1989, Roth Industries acquired Bolenz & Schäfer, a company active in the fields of hydraulics and filament winding, as well as the company EHA, which was active in special-purpose machinery for coating and impregnation processes involving web-based materials. In the 1990s, Roth Industries invested in the development of hydraulic pumps. In 1992, Roth Industries established another site in Bischofswerda. At the end of the 1990s, the market for oil tanks collapsed, prompting restructuring measures within the company. For example, the sites in the east of Saxony, in operation since the early 1990s, were converted to the production of environmental technology (such as rainwater and wastewater systems) for industrial and agricultural applications. In the 2000s, the company increasingly expanded abroad; in 2016, the company underwent a restructuring that consolidated its business segments in the areas of building and industrial technology. As part of this process, the subsidiaries were aligned with the Roth brand name: Roth Kunststofftechnik was renamed Roth Plastic Technology, the companies Schlesinger and EHA were merged to form Roth Composite Machinery, and Bolenz & Schäfer was renamed Roth Hydraulics. In 2022, Roth Industries celebrated its 75th anniversary. The company also announced in 2022 that it would increase the number of apprenticeship positions for 2023 by around ten percent. In October 2023, Roth Plastic Technology launched a new division for plastic- and injection-moulding-compatible design and development. At the end of 2023, it was also announced that Christin Roth-Jäger would take over the management of the corporate group from Matthias Donges. In 2024, Roth Hydraulics acquired the company SFP Hydraulics, based in Houston, which manufactures bladder, piston and diaphragm accumulators. In January 2025, Manfred Roth passed away at the age of 85.

Corporate structure and locations Roth Industries operates several sites in Germany, including in Buchenau, Wolfgruben, Eckelshausen, and Bischofswerda. The company is 100 percent family-owned by the Roth family. As of 2023, the group maintains 28 companies for production and sales. Roth Industries is the parent company of the Roth Group. The company operates the following subsidiaries in Germany, among others:

Roth Werke GmbH, Dautphetal Roth Composite Machinery GmbH, Steffenberg Roth Hydraulics GmbH, Biedenkopf Roth Plastic Technology (branch of Roth Werke GmbH), Dautphetal Becker Plastics GmbH, Datteln Roth Services GmbH, Dautphetal Roth Umwelttechnik, Bischofswerda In addition, the group operates further subsidiaries internationally, which adapt their production to the needs of the respective country. For example, storage systems for drinking and heating water and storage systems for rainwater and wastewater treatment and seawater desalination are produced in Spain. In the United States, mainly heating oil tanks are produced. In Europe, production activities primarily involve radiant heating systems for floors and ceilings. As of 2023, one in four Roth products is manufactured abroad. In the 2023 fiscal year, the group generated revenue of €337.5 million and employed 1,265 people. The apprenticeship rate was ten percent in 2020, with around 90 percent of trainees being taken on permanently.

Companies of the Roth Industries Group and products The business activities of Roth Industries and its subsidiaries are the development, manufacturing, and distribution of products in the building and industrial sectors. These include the divisions energy systems, sanitary systems and environmental systems, as well as composite technology, plastics, and hydraulics.

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Roth Industries

Start with the simplest possible case. Write down what Roth Industries 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 Roth Industries 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 Roth Industries 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 Roth Industries

In research: Roth Industries 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 Roth Industries 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: Roth Industries is common in secondary-school and first-year university syllabi. It links to neighbouring topics German companies established in 1947, Machine manufacturers, so understanding it makes those chapters shorter.
In everyday life: Look for Roth Industries 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.

How to study Roth Industries in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Roth Industries 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 Roth Industries out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Roth Industries in simple terms?

The Roth Industries GmbH & Co. KG is an internationally active company headquartered in Dautphetal.

Why does Roth Industries 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 Roth Industries?

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 Roth Industries.