LUEHR FILTER GmbH

LUEHR FILTER GmbH, founded in 1938 and headquartered in Stadthagen, Germany, is a family-owned air pollution control systems manufacturer now in its third generation, recently joining the MARTIN Gruppe alongside LAB. With over 300 employees and manufacturing facilities in Germany, Europe, and Asia, the company delivers turnkey flue gas cleaning solutions from engineering through assembly, commissioning, maintenance, and retrofit. LUEHR FILTER's product portfolio centers on five technology platforms: Schlauchfilter (bag filter systems for particulate collection across industrial exhaust streams), Warmetauscher (heat exchangers for energy recovery from hot process gases), Verdampfungskuhler (evaporative coolers for gas conditioning before filtration), Sorptionsverfahren (sorption-based processes for acid gas and dioxin removal using dry or semi-dry sorbent injection), and SCR (selective catalytic reduction systems for NOx abatement). The company also provides screw conveyors for material handling, chemical and R&D laboratory services including filter bag testing, and 24-hour emergency support with a dedicated hotline. LUEHR FILTER serves the non-ferrous metals industry (aluminum smelting, copper and brass recycling, magnesium, lead, and zinc), cement, lime and gypsum (clinker coolers, cement mills, lime shaft kilns, gypsum calcination), chemical processing (salt, sugar, tobacco, paper, bromine), mineral processing (asphalt, crushing, screening, mills), and energy from waste incineration. The company holds TUV and DIN certifications and maintains a global sales and service network spanning Europe, Asia, Australia, and the Americas.