上海安木国际贸易有限公司

　　1886，Friedrich Reichert starts building tools and fixtures in rented buildings in Berlin / Germany

　　1908，Start of serial gear pump production

　　1921，Concentric founded in Birmingham / UK

　　1928，High pressure gear pumps up to 100 bar launched

　　1929，John S. Barnes founded in Rockford / USA

　　1943，Company relocated to Hof, Germany

　　1948，Concentric makes first engine pump

　　1950，Oil maintenance units and a newly developed electro motor pump combination launched

　　1957，Production of mobile service units started and high pressure gear pumps up to 150 bar developed

　　1962，MOBIL OIL AG acquires Reichert / Germany

　　1966，Hydraulically balanced high pressure gear pump product range up to 220 bar launched

　　1968，GPA internal gear pump launched

　　1972，VICKERS Group acquires Hof / Germany

　　1977，John S. Barnes focuses on mobile hydraulic pumps

　　1978，G-series product range launched

　　1987，Development of W-series external gear pumps

　　1987，Garphyttan acquires Barnes

　　1989，WP900 series gear pump launched

　　1990，John S. Barnes acquires Hof / Germany and Statesville / USA

　　1991，HE2000 Power Pack launched

　　1994，Garphyttan acquires Hesselman AB, Sk?nes Fagerhult / Sweden

　　1995，HE1000 Power Pack launched

　　1996，The market leading dual flank low noise design (WQ series) launched

　　1997，Name change to Haldex Barnes Hydraulics

　　1998，Bridgepoint completes public-to-private transfer of Concentric plc (LSE)

　　2002，Low speed design introduced

　　New management team rebuild Concentric engine pumps as independent business

　　2004，Fuel transfer pump developed for the Diesel engine market

　　2005，Concentric completes divestment of all businesses except engine pumps

　　2007，Second generation of low noise gear product launched (Calma series)

　　2008，Haldex AB acquires Concentric Ltd. / UK

　　2009，HE2200 with high flow characteristics

　　2011，Concentric AB founded after demerger from Haldex AB. Hydraulic systems division is independently listed on NASDAQ OMX and renamed Concentric AB

　　2013，Concentric AB acquires Licos Trucktec / Germany

　　2015，Concentric AB acquires GKN Sinter Chivilcoy / Argentina

　　2016，

　　F12 X Ferra pump for high pressure range

　　EHS Electro-hydraulic steering

　　Dual Cone clutch pump

　　Variable flow oil pump

　　2-speed water pump clutch

　　2-stage transmission oil pump