LUEHR FILTER GmbH

What LUEHR FILTER GmbH does

LUEHR FILTER GmbH is a German, third-generation family-owned industrial engineering company founded in 1938 and headquartered in Stadthagen, Lower Saxony. The company designs, manufactures, and commissions flue gas purification and air pollution control systems for heavy industry, with core product lines comprising bag filters (Schlauchfilter), heat exchangers (Wärmetauscher), evaporative coolers (Verdampfungskühler), sorption processes (Sorptionsverfahren) for acid gas and mercury removal, and SCR systems for NOx reduction. It operates in-house demonstration and test facilities, chemical and filter-bag testing laboratories, CFD modeling capabilities, and SCC-certified assembly teams, and produces more than 30,000 filter bags per month in its own workshops.

Name

LUEHR FILTER GmbH

Legal name

LUEHR FILTER GmbH

Website

https://luehr-filter.de

Company type

Private

Founded year

1938

Operating status

Operating

Headcount range

251–500 employees

Short description

LUEHR FILTER GmbH is a German third-generation family-owned industrial engineering firm that designs, manufactures, and services flue gas purification and air pollution control systems — including bag filters, heat exchangers, evaporative coolers, sorption, and SCR units — for heavy industries globally.

Ownership category

akta.pro rank

Product category

Industrial Air Pollution Control Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Emission Control & Scrubbing Equipment (Scrubbers, Dust Collectors, Catalytic Systems) (IMAHAEAK)

Keywords

• Industrial air filtration
• Gas cleaning systems
• Flue gas treatment
• Dust collection equipment
• Emission control solutions

Headquarters

HQ city

Stadthagen

HQ country

Germany

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Industrial Equipment Sales: Custom-designed and manufactured air pollution control systems including bag filters, heat exchangers, evaporative coolers, and sorption systems. Equipment sales are project-based with engineering, manufacturing, assembly, and commissioning services. Revenue is generated through one-time capital equipment purchases for industrial plants.
2. Spare Parts and Consumables: Replacement filter bags (over 30,000 units/month capacity) and other essential spare parts for filtration plants, with new service life warranties provided.
3. Assembly and Commissioning Services: Professional mechanical and electrical assembly services, including construction management and supervision, conducted by qualified teams with SCC certification.
4. Maintenance and Inspection Services: Comprehensive after-sales support including plant inspections, maintenance during planned shutdowns, problem analysis, on-site measurements, operator training, and emergency hotline services.
5. R&D and Testing Services: Chemical analyses, filter bag testing, multi-day measurement series, and demonstration plant testing for customer optimization and product development.
6. Electrical/EMSR Planning Services: System integration services including consultation, hardware engineering (ELCAD, EPLAN, AUTOCAD), software engineering (Siemens S7, PCS7), control cabinet manufacturing, and remote maintenance via VPN.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

LUEHR FILTER GmbH develops, engineers, manufactures, and commissions industrial air and gas purification systems, with a core product portfolio of bag filters (Schlauchfilter), heat exchangers (Wärmetauscher), evaporative coolers (Verdampfungskühler), sorption processes (Sorptionsverfahren), and SCR systems for flue gas treatment. The company produces key components in its own facilities in Germany, Europe, and Asia, and complements equipment with full lifecycle services including engineering, electrical/I&C planning, assembly, commissioning, maintenance, inspection, spare parts, and R&D testing/analysis.

Product overview

LUEHR FILTER GmbH is a family-owned company founded in 1938, specializing in industrial air and gas purification systems. The product portfolio centers on five core equipment product lines—Schlauchfilter (Bag Filter), Wärmetauscher (Heat Exchanger), Verdampfungskühler (Evaporative Cooler), Sorptionsverfahren (Sorption Procedures), and SCR (Selective Catalytic Reduction)—which work together as integrated gas purification solutions for various industrial applications including waste incineration, non-ferrous metals processing, steel production, cement/lime/gypsum, chemicals, and mineral processing. The company also manufactures filter bags as replacement parts in-house. Beyond equipment, LUEHR FILTER offers comprehensive services spanning the entire plant lifecycle: engineering (including electrical/I&C planning), assembly and commissioning, maintenance and inspection, filter bag testing, chemical analyses, CFD flow analyses, and R&D with demonstration and mobile test facilities. The company became part of the MARTIN Group in 2025.

Differentiator

Problem solved

Functional benefit

Products and services

• Schlauchfilter (Bag Filter) Bag filter systems for industrial air and gas purification, removing particulate matter from gas streams across heavy industry applications including waste incineration, steel, cement, non-ferrous metals, chemicals, and mineral processing.
• Wärmetauscher (Heat Exchanger) Heat exchanger systems for thermal management in gas purification processes, recovering heat from flue gas streams as part of integrated air pollution control plants.
• Verdampfungskühler (Evaporative Cooler) Evaporative cooling systems that reduce gas temperatures in air pollution control applications before filtration, integrated into the company's gas purification plants.
• Sorptionsverfahren (Sorption Procedures) Chemical sorption processes for flue gas purification, removing acid gases (HCl, HF, SO2), mercury, and other pollutants through dry sorbent injection or similar methods, supported by a stationary demonstration plant for testing.
• SCR (Selective Catalytic Reduction) Selective catalytic reduction systems for NOx reduction in flue gas treatment applications, deployed as part of integrated gas purification plants.
• Filterschläuche (Replacement Filter Bags) Original replacement filter bags manufactured in-house at LUEHR FILTER's own workshops, with production capacity exceeding 30,000 units per month and new service life warranties provided on units delivered and installed by LUEHR FILTER.
• Engineering Engineering services for industrial gas purification plants, from initial concept through to modernization of existing filtration systems.
• Elektro-/EMSR-Planung (Electrical/I&C Engineering) Electrical and instrumentation, control and regulation (EMSR) engineering services including hardware planning with ELCAD/EPLAN/AUTOCAD, software engineering on Siemens S7/PCS7/WinCC/TIA Portal, control cabinet manufacturing, Factory Acceptance Testing (FAT), and remote maintenance via VPN.
• Montage (Assembly and Commissioning) Mechanical and electrical assembly services for gas purification plants including construction management, supervision, quality assurance, and commissioning, delivered by SCC-certified qualified teams.
• Instandhaltung / Inspektion (Maintenance and Inspection) After-sales maintenance and inspection services for installed gas purification systems, including plant inspections during planned shutdowns, troubleshooting and problem analysis, on-site measurements, operator training, and 24-hour emergency hotline support.
• Filterschlauch-Prüfung (Filter Bag Testing) Laboratory testing and analysis services for filter bags including visual inspection, geometric measurements, particle content weighing, filter regeneration efficiency testing, microscopic examination, and remaining service life evaluation.
• Chemische Analysen (Chemical Analyses) Gas and solid analysis services including gas composition measurements (O2, CO2, humidity, acid gases such as HCl/HF/SO2, NOx, hydrocarbons, mercury), particle property analysis, and multi-day measurement series for process optimization.
• CFD-Analysen (Computational Fluid Dynamics) Flow analysis services using computational fluid dynamics to optimize gas flow and particle distribution and minimize pressure drops in gas purification systems.
• Demonstrationsanlage (Demonstration Plant Testing) Stationary demonstration plant with additive station, particle recirculation, particle humidification, and continuous measurement technology for simulating sorption processes, operating in fully automatic 24-hour mode for customer testing and R&D.
• Mobile Test Equipment Mobile and customizable test equipment for evaluating particle characteristics on-site under real operating conditions.
• Ersatzteilvertrieb (Spare Parts Distribution) Spare parts distribution for installed filtration plants, supplying original replacement components including filter bags and other essential spare parts.

Quantifiable outcome

• More than 30,000 filter bags manufactured per month
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature11 records

Partnerships

Eleven partnerships are on record, tiered core, regional and minor.

• MARTIN GmbH für Umwelt- und EnergietechnikcoreStrategic or Co-development Partner · 1 October 2025LUEHR FILTER GmbH has been acquired by MARTIN GmbH as part of MARTIN's strategy to expand its environmental technology portfolio. The acquisition enhances MARTIN's capabilities in thermal waste recovery and air pollution control. Both brands (LAB and LUEHR) will remain independent within the MARTIN Group for flue gas purification products.
• Ferrum B.V. (Netherlands/Benelux)regionalChannel Partner/ Reseller/ DistributorRegional distributor for LUEHR FILTER products in the Benelux region (Netherlands, Belgium, Luxembourg). Located at Irislaan 9B, 5595 EH Leende, Netherlands.
• Dust Cleantech OY (Finland)regionalChannel Partner/ Reseller/ DistributorRegional distributor for LUEHR FILTER products in Finland. Located at Radanvarsi 5, 45910 VOIKKAA, Finland.
• FDC FranceregionalChannel Partner/ Reseller/ DistributorRegional distributor for LUEHR FILTER products in France. Located at 1 rue Albert Einstein, 56700 Hennebont, France.
• AIR SOLUTIONS Srl (Italy)regionalChannel Partner/ Reseller/ DistributorRegional distributor for LUEHR FILTER products in Italy. Located at Via Cefalonia 55, 25124 Brescia (BS), Italy.
• IMI INDUSTRI OG MILJØUTSTYR AS (Norway)regionalChannel Partner/ Reseller/ DistributorRegional distributor for LUEHR FILTER products in Norway. Located at Seterveien 19, N-1162 Oslo, Norway.
• Eltecna AG (Switzerland)regionalChannel Partner/ Reseller/ DistributorRegional distributor for LUEHR FILTER products in Switzerland. Engineering office for industrial plants. Located at Rautistr. 60, 8048 Zürich, Switzerland.
• BLUE BIRD Co. Ltd. (Korea)regionalChannel Partner/ Reseller/ DistributorRegional distributor for LUEHR FILTER products in South Korea. Located at 910 Woorim e-Biz Center, 170-5 Guro-dong, Guro-gu, Seoul 152-769, Korea.
• Kuttner do BrasilregionalChannel Partner/ Reseller/ DistributorRegional partner for LUEHR FILTER products in Brazil. Located at Rua Santiago Ballesteros 610-Cinco, 32010-050 Contagem/MG, Brazil.
• KUTTNER North America (USA/Canada)regionalChannel Partner/ Reseller/ DistributorRegional partner for LUEHR FILTER products in North America (USA and Canada). Located at 211 N. Franklin Street, Suite 300, Port Washington, WI 53074-0343, USA.
• FH Bielefeld (Campus Minden)minorOthersCooperation partner for dual study program in mechanical engineering (Bachelor of Engineering, Konstruktion).

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Scheuch GmbH: Austrian family-owned specialist in air pollution control and flue gas cleaning for industrial applications. Closely comparable product portfolio (bag filters, sorption, SCR) and similar customer base in steel, cement, and waste incineration.
• LAB (within MARTIN Group): Sister brand for flue gas purification within the MARTIN Group; offers overlapping flue gas cleaning products (LAB) and serves the same heavy-industry customer base as LUEHR FILTER.

Broad incumbents

• ANDRITZ AG (Separation / Air Pollution Control): Global industrial group with a dedicated air pollution control and separation division serving pulp & paper, power, and metals. Larger incumbent offering overlapping bag filter and emission control solutions.
• GEA Group AG: Large German industrial conglomerate with separation and environmental technology offerings relevant to flue gas cleaning and dust collection in heavy industry applications.
• Dürr AG (Clean Technology Systems): German engineering group providing emission control and exhaust air purification systems across multiple industrial segments, including waste incineration and metals processing.
• FLSmidth A/S (Filtration): Global supplier of equipment and services to cement and minerals industries, including air pollution control and filtration solutions; directly competes in cement plant dust collection and emissions.
• Donaldson Company, Inc. Major industrial filtration manufacturer with a strong filter bag and dust collection product line serving similar heavy-industry and process manufacturing customers globally.
• Babcock & Wilcox (B&W): Global provider of steam generation and environmental equipment for power and industrial markets, including air pollution control systems for emissions reduction in waste-to-energy and industrial plants.
• AAF Flanders (Daikin Applied): Global manufacturer of air filtration products including bag filters, cartridge filters, and dust collectors for industrial applications; competes in adjacent filtration segments serving heavy industry.

Emerging players

• Nederman Holding AB: Swedish company focused on industrial air filtration and emission control solutions, including filter cartridges and dust collectors; smaller and product-portfolio-adjacent to LUEHR's bag filter offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/luehr-filter-gmbh

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about LUEHR FILTER GmbH