Leistritz Group
| Leistritz AG
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|---|---|
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| legal form | Corporation |
| founding | 1905 |
| Seat | Nuremberg , Germany |
| Number of employees | 1,850 (2015) |
| sales | EUR 250 million in 2013 |
| Branch | Mechanical and plant engineering |
| Website | www.leistritz.com |
The Leistritz group of companies , based in Nuremberg, is a German group of companies in the fields of aerospace (engine components ), energy technology (turbine components ), fluid energy machines (pumps and systems for e.g. shipbuilding and the extraction of crude oil), extrusion technology (extruders and Extrusion systems), machine tools (whirling, key pulling), as well as hard metal tools.
Leistritz has the status of a technology leader in special applications for the automotive industry, in the oil and gas industry, in power plant technology, in shipbuilding, in the aviation industry as well as in the chemical, plastics and pharmaceutical industries.
history
In 1905 Paul Leistritz († 1957) founded the "Maschinenfabrik Paul Leistritz" in Nuremberg. The first big order came from the MAN engine factory, which had ordered 30,000 metal blades for steam turbines.
As a new development, screw pumps were added to the production program in 1924 and in the following year the production range was expanded to include the manufacture of silencers for motorcycles, automobiles and stationary engines. In 1937, screw pumps for kneading and mixing viscous media were further developed. This resulted in extruders for plastics processing.
In 1960, a plant in Fürth / Stadeln was added to expand production capacity. In 1965, Leistritz manufactured hydraulic systems for elevator construction at the Bochum plant.
In 1973, today's Leistritz Advanced Technologies Corporation was founded as a sales and service organization in the USA. In 1975 a plant was set up in Pleystein to manufacture silencers and pipe components as well as machine tools and tools. In 1986 Leistritz Maschinenfabrik GmbH was converted into a stock corporation. In 2001 Leistritz AG gave itself a new organizational structure and formed four independent subsidiaries: Leistritz Turbomaschinen Technik GmbH, Leistritz Pumpen GmbH, Leistritz Extrusionstechnik GmbH, Leistritz Produktionstechnik GmbH. In 2005, Leistritz AG took over ThyssenKrupp Turbinenkomponenten GmbH in Remscheid, which today operates under the name of Leistritz Turbinentechnik GmbH. In 2011, the mechanical engineering division was expanded through the establishment of Leistritz Machinery (Taicang) Co., Ltd. strengthened in China. In 2012, Leistritz Turbinentechnik GmbH expanded its production capacity in Southeast Asia and opened a new plant in Thailand (Leistritz (Thailand) Ltd.). In 2014/2015, further international sales and service locations were set up in Singapore and the United Arab Emirates. 2016 Opening of a new location in Chennai, India (Leistritz India Pte Ltd)
Group of companies
The group consists of four business areas, which are 100% owned by Leistritz AG:
- Leistritz Turbinentechnik - components for aircraft engines
- Leistritz pump technology - pumps and systems
- Leistritz extrusion technology - extruders and extrusion systems
- Leistritz production technology - machine tools and tools
Leistritz turbine technology
The turbine technology division with Leistritz Turbinentechnik GmbH (until 2012 Leistritz Turbinenkomponenten Remscheid GmbH) has its headquarters in Remscheid and another production site with Leistritz Turbomaschinen Technik GmbH in Nuremberg. Production takes place at two locations in Germany (Remscheid and Nuremberg) as well as in Croatia and Thailand. It all started with the manufacture of blades for steam turbines, which are still important products today. The product range for stationary turbines has been continuously expanded. It also produces blades, profiles and other components for gas turbines. Since the first jet engines for aircraft were built in the 1940s, Leistritz has been developing and manufacturing engine blades for aircraft engine manufacturers. The focus today is on the compressor blades, which are manufactured using aerodynamically shaped geometries. Ready-to-install turbine blades and integral rotors require the right combination of suitable manufacturing processes. Manufacturing technologies are precision forging, CNC milling and grinding processes, hot and cold rolling, electrochemical machining and surface treatments.
Leistritz pump technology
The development and manufacture of self-priming, rotating displacement pumps began in Nuremberg in the 1920s. Today the division produces in Nuremberg and operates in the Leistritz branches in China, India, Italy, Singapore, UAE and the USA. The screw pumps convey well lubricating to abrasive liquids up to 5000 m³ / h, whereby delivery pressures of up to 280 bar are possible. The screw pumps and systems are used in many different areas of application, from the chemical industry to shipbuilding. A special field of application are multiphase pump systems, which are used especially for pumping multiphase mixtures directly from the oil well. The smallest version of the screw pump is used as a fuel pump in the automotive industry.
Leistritz extrusion technology
As a modification and further development of the screw pump, melt pumps were developed in the 1930s that were used for kneading and pumping rubber masses. Ten years later, these machines and systems were used for processing thermoplastics. Today, co-rotating twin-screw extruders and extrusion systems are offered that are used in the plastics sector in compounding, masterbatch production, and direct extrusion of films, pipes and sheets. In addition, pharmaceutical products and food are also produced on the extruders. Leistritz Extrusionstechnik GmbH has always had Nuremberg as its headquarters and operates worldwide in the Leistritz branches in China, France, Italy, Singapore and the USA.
Leistritz production technology
Leistritz Produktionstechnik GmbH, based in Pleystein in the Upper Palatinate, supplies solutions for areas of application of rotationally symmetrical, thread-like profiles, such as: B. Ball screw spindles and nuts, pump spindles, eccentric, steering, EPS and gear worms and bone screws. In 1975 the expansion of the plant in Pleystein began on the site of a closed sheet metal processing plant. In the same year production began with the manufacture of silencers for the " VW Beetle ". In 1977 the production area became too small because the production of hard metal precision tools was added to the program. In 1980, when keyseating machines were added to the delivery program, the time of numerically controlled machine tool construction began at Leistritz in Pleystein. From 1982 the production of pipe components for exhaust systems, also for other automobile manufacturers, began. Whirling technology is a special field in machining technology. Today the plant produces CNC whirling machines with loading and unloading systems. On these machines u. a. Steering screws for automobiles, ball screw spindles, plasticizing screws for extruders and masonry drills are manufactured.
Web links
Individual evidence
- ↑ Florian Langenscheidt , Bernd Venohr (Hrsg.): Lexicon of German world market leaders. The premier class of German companies in words and pictures. German Standards Editions, Cologne 2010, ISBN 978-3-86936-221-2 .
- ↑ Liquid pumps. Retrieved August 19, 2019 .