KROHNE Group – Historie firmy
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Počátky
V roce 1921 začal Ludwig Krohne v německém Duisburgu vyrábět plováčkové průtokoměry pro měření průtoku plynů a kapalin. V roce 1936 se forma přestěhovala z pronajatých prostor do vlastní budovy. Ta byla zničena za 2. světové války. Jelikož Ludwig Krohne i jeho syn Karl za války padli, vedla po válce firmu Ludwigova manželka Anna.
Nový začátek
V roce 1949 požádala Anna Krohne svého osmadvacetiletého vnuka Kristiana Rademacher-Dubbicka, aby vstoupil do firmy.
Brzy převzal za Annu celou odpovědnost za firmu a pod jeho vedením se firma KROHNE – původně pouze s 8 zaměstnanci - stala jednou z nejvýznamnějších a nejprogresivnějších výrobců průtokoměrů.
Generační výměna
V roce 1979 se Kristian Rademacher-Dubbick vzdal své pozice výkonného ředitele a stal se předsedou sporu ředitelů. Stále ho bylo možno pravidelně potkat v mnoha výrobních závodech, kde s radostí sledoval další rozvoj firmy.
Kristian Rademacher-Dubbick zemřel v Duisburgu v roce 2014 ve věku 92 let.
Současnost
Pod vedením Michaela Rademacher-Dubbicka, Stephana Neuburgera a Dr. Attily Bilgice se firma KROHNE posunula od výrobce přístrojů do pozice poskytovatele komplexních řešení, přičemž stále zůstává nezávislou společností ve vlastnictví rodiny Rademacher-Dubbick.
Sortiment výrobků se neustále rozšiřuje a doplňuje o další přístroje, měřicí komplety a doplňkové služby umožňující snadnou integraci do moderních průmyslových systémů a poskytující zákazníkovi maximální množství informací o jeho procesu.
Zároveň tím získáváme nové trhy a zákazníky a podporujeme rozvoj a nezávislost firmy v globálním měřítku.
Klíčové momenty firmy KROHNE při rozvoji měřicích technologií a řešení pro průmyslové aplikace
| 1921 | LUDWIG KROHNE & SOHN is founded: Ludwig Krohne starts manufacturing variable area flowmeters in Duisburg, Germany, to measure the flow of air, gases and liquids. |
| 1952 | The first electromagnetic flowmeter (EMF) for industrial measurement is launched |
| 1953 | Precision forming of cylindrical glass tubes into high accuracy tapered measuring tubes |
| 1954 | First inductive transducers for variable area flowmeters that allows for remote transmission of readings |
| 1955 | Production of mechanical level meters for measuring liquids in tanks and containers begins |
| 1959 | Level indicator with float and magnetic coupling |
| 1960 | Introduction of an accurate conversion method for variable area flowmeters, subsequently adopted as VDI Code |
| 1966 | Construction of the world's largest calibration rig for volume flow in Sliedrecht/Netherlands |
| 1972 | Development of the pulsed DC field for electromagnetic flowmeters |
| 1978 | Development of double-beam ultrasonic flowmeters |
| 1979 | Construction of a larger and more accurate volume flow calibration rig in Sliedrecht/NL |
| 1980 | First delivery of an ultrasonic flowmeter to Shell for crude oil measurements |
| 1981 | First EMF with measuring tube made of oxide ceramics and sintered platinum electrodes |
| 1985 | Development and production of Coriolis mass flowmeter starts |
| 1989 | Presentation of the first FMCW radar level meter for process tanks, pioneering the use of radar level measurement technology in process applications |
| 1994 | First straight-tube Coriolis mass flowmeter |
| 1995 | First TDR guided radar level meter |
| 1996 | First electromagnetic flowmeter for partially filled pipes (TIDALFLUX). |
| 1996 | First ultrasonic custody transfer meter for liquids (ALTOSONIC V) |
| 2000 | Installation of the world’s most precise volumetric calibration rig for flowmeters up to DN 3000/120" with a certified accuracy of 0.013 % |
| 2000 | First 2-wire FMCW radar level meter |
| 2001 | First 2-wire electromagnetic flowmeter with full process application compatibility and intelligent power optimization |
| 2002 | New generation of Coriolis mass flowmeters with straight tubes (OPTIMASS series) |
| 2003 | First 3-beam ultrasonic flowmeter for the chemical industry (UFM 3030) |
| 2004 | New generation of OPTIFLUX electromagnetic flowmeters with built-in diagnostics for process, accuracy and meter integrity |
| 2004 | New generation of non-contact and guided radar level meters with a unique wizard-driven operating concept (OPTIWAVE and OPTIFLEX series) |
| 2005 | First presentation of analysis instruments for the water industry |
| 2006 | First 2-wire vortex flowmeter with integrated pressure and temperature compensation (OPTISWIRL 4070 C) |
| 2006 | KROHNE acquires swedish temperature company INOR who invented the headmounted transmitter for thermometers in 1974 |
| 2008 | First 12-chord ultrasonic gas flowmeter for custody transfer applications with compensating and diagnostic functions (ALTOSONIC V12) |
| 2008 | Launch of complete analysis portfolio with digital analytical sensors and systems for wastewater treatment plants (OPTISENS and OPTISYS series) |
| 2008 | Launch of turbidity measuring system with unique cuvette calibration and ultrasonic cleaning for easy calibration and low maintenance costs |
| 2009 | Introduction of the Drop antenna for OPTIWAVE radar level meters: its ellipsoidal shape prevents from product deposits in dusty or humid atmospheres |
| 2010 | First EMF with rectangular cross-section to allow for installation without straight inlets and outlets (WATERFLUX) |
| 2010 | First temperature transmitter with dual sensor input in 4-wire connection |
| 2010 | KROHNE is the first manufacturer to offer a standardised operating and service concept for both flowmeters and analytical instruments |
| 2011 | Implementation of SmartSense insulation resistance monitoring to detect cracks in the thermowell integrated in temperature transmitters |
| 2011 | First inline spectroscopic analysis system for continuous inline measurement of protein/fat/lactose/total solids, free fatty acids (FFA) and chemical oxygen demand (COD) (OPTIQUAD series) |
| 2012 | Analytical sensor range specially suited for food & beverage processes is introduced |
| 2012 | Introduction of OPTIBAR P 3050 C compact pressure transmitter |
| 2013 | Unique PP/PTFE Wave Horn antennas for the use of OPTIWAVE radar level meters in corrosive environments |
| 2013 | KROHNE introduces SMARTPAT:the first digital sensor portfolio with integrated transmitter technology and direct connection to control system via 4…20 mA/HART®. |
| 2014 | First ultrasonic flowmeter for biogas applications with direct measurement of methane content (OPTISONIC 7300 C Biogas) |
| 2014 | Release of OPTIBAR DP 7060 differential pressure transmitter |
| 2014 | First Vortex flowmeter with integrated gross and net heat measurement for hot water (condensate) and steam |
| 2015 | Complete OPTIBAR series of pressure transmitters, diaphragm seals, primary elements and accesories is released |
| 2015 | First multiphase flowmeter based on magnetic resonance technology |
| 2016 | Multi-dimensional 3D linearisation for every OPTIBAR DP transmitter established as standard |
| 2017 | New 24 and 80 GHz radars added to OPTIWAVE series, each designed for specific industry needs. |
| 2018 | New OPTIFLEX series of TDR guided radars designed for specific industry needs. |
| 2018 | NFC and Bluetooth®communication for temperature transmitters. |