Liqui Filter

What Liqui Filter does

LIQUI Filter GmbH is a privately held German industrial equipment manufacturer founded in 1992 and headquartered in Engen, in the Hegau region of southern Germany between the Black Forest and Lake Constance. The company designs and builds three integrated product lines for the machine-tool periphery: GT® air filtration systems (multi-stage units with 99.95% separation efficiency covering oil mist, emulsion vapor, smoke, bacteria, viruses, and fungi), KSS coolant/cutting-fluid filtration systems (magnetic, gravity band, deep bed, lamella, vacuum band, sieve drum, hydrocyclone, centrifuge, precoat, disc filters, and foreign oil separators with filter fineness from 150 µm to 3 µm), and chip processing systems (compact chip systems, breakers, centrifuges, vacuum extraction, briquetting, and conveyors with up to 150 liters of oil recovered per ton of chips and 2–3% residual moisture). The portfolio is positioned as a circular-economy solution for metalworking and manufacturing customers, with claimed equipment payback periods under two years through material recovery and reduced disposal costs.

The company is family-controlled by the Büche family (Managing Directors Armin Büche and Yannick Büche), is DIN EN ISO 9001:2015 certified, and is a WHG Fachbetrieb (specialist company under the German Water Management Act), with memberships in VDMA and WVIB. It operates a hybrid distribution model: direct enterprise sales in Germany (with named account managers such as Armin Büche covering PLZ 01–99) and an international network of authorized distributors across France, Austria, Switzerland, Norway, Slovakia, Spain, Turkey, Hungary, Mexico, and the USA, supported by a wholly-owned Turkish subsidiary (BLB, founded 2012) acting as a sales platform for the Middle East and Asia in addition to general representation for GTI GlobTec Industriemaschinen GmbH.

Revenue is generated from one-time capital equipment sales (standard, special, and central filtration and chip processing plants), aftermarket services (maintenance, service, repair), and consumables (filter fleece and spare parts sold through dedicated phone lines). Pricing is quote-based and not publicly disclosed; customers are directed to complete product-specific questionnaires for custom configurations. The customer base is horizontal across metalworking, CNC/machine-tool operations, and broader industrial production facilities, with no named customer logos or disclosed revenue split. AI/ML capability is not present in the product set; the offering is mechanical and process-engineering in nature.

Name

Liqui Filter

Legal name

LIQUI Filter GmbH

Website

https://liqui-filter.de

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

LIQUI Filter GmbH is a privately held German industrial equipment manufacturer, founded in 1992 and headquartered in Engen, that designs and builds air filtration, coolant filtration, and chip processing systems for metalworking and manufacturing customers across Europe, the Americas, and Asia.

Ownership category

akta.pro rank

Product category

Industrial Filtration and Chip Management Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

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

akta.pro primary industry

Separation & Filtration Equipment (Filters, Centrifuges, Membranes) (IMAHAEAB)

akta.pro secondary industries

Dust Collection & Air Filtration Equipment (Industrial) (IMAHALAF), Air Quality & Filtration Equipment (IAQ) (IMAHAKAI), Industrial Filtration Media & Dust Collection Textiles (Air/Liquid Filtration) (IMAOADAC)

Keywords

• Industrial air filtration
• Coolant filtration systems
• Chip processing equipment
• Metalworking filtration
• Circular economy manufacturing

Headquarters

HQ city

Engen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Equipment Sales: Sale of standard, special, and central filtration plants and chip handling systems. Products include air filtration units (GT® series), KSS/cutting fluid filtration systems, chip processing plants, chip conveyors, and chip bunkers. Both individual machine-attached (single) systems and large central systems serving entire production halls or lines are offered.
2. Aftermarket Services: Maintenance, service, and repair services for installed equipment. Filter fleece and spare parts sales through dedicated phone lines. Ongoing support relationship with customers for operational continuity.
3. Spare Parts and Consumables: Sales of replacement parts, filter fleece, and consumables for existing installations. Direct ordering lines available for filter fleece (extension 27) and spare parts (extension 24).

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

LIQUI Filter GmbH manufactures and sells industrial filtration and chip management equipment for metalworking and manufacturing processes. Its three core product lines are GT® air filtration systems (process and hall air purification), KSS/CL liquid filtration systems (coolants, cutting fluids, emulsions, and oils), and chip processing systems (crushing, drying, briquetting, conveying, and oil recovery from metal chips). The company sells standard, special, and central plants to industrial manufacturers through direct enterprise sales in Germany and an international distributor network.

Product overview

Liqui Filter GmbH is a German industrial equipment manufacturer offering three core product lines: (1) GT®-Luftfiltersysteme (air filter systems) including GT® LIGHT, GT® HEAVY, GT® SC, GT® SHC, GT® AP/APS, GT® 120H, and GT® 20H TOP for process air purification and hall air conditioning with up to 99.95% separation efficiency; (2) KSS-Filtrationsanlagen (coolant filtration systems) comprising magnetic filters, gravity band filters, deep bed filters, lamella separators, vacuum band filters, sieve drum filters, hydrocyclone systems, filter centrifuges, precoat filters, DISC-O-Filter systems, foreign oil separators, and filter fleece for industrial fluid filtration ranging from 150 µm to 3 µm fineness; and (3) Spänesysteme (chip processing systems) including compact chip systems, chip breakers, chip centrifuges, vacuum extraction, briquetting plants, and chip conveyors for metal chip crushing, drying, and oil recovery with up to 150 l/to oil recovery and 2-3% residual moisture. The company positions itself as a provider of circular economy solutions through these integrated filtration, processing, and reclaiming technologies.

Differentiator

Problem solved

Functional benefit

Products and services

• GT® Air Filter Systems Multi-stage air filtration systems for clean process air, optimal hall air, and healthy indoor climate. Includes models (GT® LIGHT, GT® HEAVY, GT® SC, GT® SHC, GT® AP/APS, GT® 120H, GT® 20H TOP) handling light and heavy air pollution from oil, emulsion, smoke and coolant with 99.95% separation efficiency including viruses, bacteria and fungi. Air flow rates 500–32,000 m³/h.
• KSS/CL Filtration Systems (Coolant and Cutting Liquid Filtration) Standard, special and central plants for cleaning, filtration and management of oils, emulsions and cooling lubricants. Product range includes magnetic filters, gravity band filters, deep bed filters, lamella separators, vacuum band filters, sieve drum filters, hydrocyclone systems, filter centrifuges, precoat filters, DISC-O-Filters, lifting systems, and foreign oil separators. Filter performance 10–35,000 l/min, filter fineness 150 µm to 3 µm.
• Chip Processing Systems (Spänesysteme) Complete chip processing systems for crushing and drying of metal chips with separation and recovery of coolants and oils. Includes compact chip systems, chip breakers and cutting units, chip centrifuges, vacuum extraction systems, briquetting plants, and chip conveyors (including harpoon conveyors). Oil recovery up to 150 l/to, guaranteed residual moisture 2–3%.
• Aftermarket Maintenance, Service and Repair Maintenance, service and repair services for installed LIQUI Filter equipment, supporting operational continuity of customer production lines.
• Spare Parts and Filter Fleece Consumables Replacement filter fleece and spare parts for installed filtration systems, available through dedicated ordering phone lines (filter fleece ext. 27, spare parts ext. 24).

Quantifiable outcome

• Oil recovery up to 150 liters per ton of metal chips processed
• +4 more outcomes

Segments3 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Isoven SAScoreChannel Partner/ Reseller/ DistributorAuthorized distributor for France. Located at ZI Technopôle Forbach Sud, rue René Descartes, F-57600 Forbach, France. Contact via Tel +33 961618013 or [email protected].
• GMTA (German Machine Tools of America)coreChannel Partner/ Reseller/ DistributorAuthorized distributor for Mexico (Mexican GMTA, S. De R.L. De C.V.) and USA (GMTA). Mexico contact: Camio a los Olvera 721, 76904 Los Olvera, Qro. USA contact: 4630 Freedom Drive, Ann Arbor MI 48108. Tel +1-734-973-7800.
• Alfsen og Gunderson AScoreChannel Partner/ Reseller/ DistributorAuthorized distributor for Norway. Located at Sommerin, Brynsveien 5, NO-0667 Oslo. Contact via Tel +47 22 70 77 00 or [email protected].
• Metzler GmbH & Co. KGcoreChannel Partner/ Reseller/ DistributorAuthorized distributor for Austria. Located at Interpark Focus 40, A-6832 Röthis. Contact via Tel +43 5523 90909 or [email protected].
• INFRANORM Technologie GmbHcoreChannel Partner/ Reseller/ DistributorAuthorized distributor for Austria. Located at Bauernstrasse 11, A-4600 Wels. Contact via Tel +43 7242/939681-50 or [email protected].
• FiltraconcoreChannel Partner/ Reseller/ DistributorAuthorized distributor for Switzerland. Located at Dünnernstr. 26, CH-4702 Oensingen. Contact via Tel +41 (0)62 822 10 00 or [email protected].
• SC Slovakia, s.r.o.minorChannel Partner/ Reseller/ DistributorAuthorized distributor for Slovakia. Located at Kukucinova 14, 900 25 Chorvatsky Grob. Contact via Tel +421 903 50 70 80 or [email protected].
• Garalde SystemsminorChannel Partner/ Reseller/ DistributorAuthorized distributor for Spain. Contact: José García Barquero, C/Egia 2-2ºC, 20012 San Sebastian-Donostia. Tel +34 943288319 or [email protected].
• OASISminorChannel Partner/ Reseller/ DistributorAuthorized distributor for Turkey. Contact: Çağlar Özelitez, Turgut Reis Mahallesi, Tekstilkent B-4 Blok No: 82, TR-34235 Esenler Istanbul. Tel +90 2124383026 or [email protected].
• ACR Consulting Kft.coreChannel Partner/ Reseller/ DistributorAuthorized distributor for Hungary. Located at Jókai u. 13, H-7621 Pécs. Contact via Tel +36 72 211 923 or Mobil +36 20 369 5800 or [email protected]. Hosting LIQUI Filter at their stand at Mach Tech Budapest 2026 trade show.
• GTI GlobTec Industriemaschinen GmbHcoreChannel Partner/ Reseller/ DistributorLIQUI Filter holds general representation (Generalvertretung) for GTI GlobTec Industriemaschinen GmbH, extending their product and service portfolio to include GTI industrial machinery products.

Scale indicators3 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Boll & Kirch Filterbau: German specialist in industrial liquid filtration, including automatic backwash filters and process filtration for cooling fluids, emulsions, and process water. Directly comparable to LIQUI Filter's KSS coolant filtration line in target customers and application.
• Keller Lufttechnik: German manufacturer of industrial dust collection, extraction, and air filtration systems for metalworking processes. Closely comparable to LIQUI Filter's GT® air filter range in addressing oil mist, emulsion vapor, and welding fume in production halls.
• Nederman: Swedish industrial air filtration specialist offering oil mist, fume, and dust extraction systems for metalworking and manufacturing. Directly comparable to LIQUI Filter's GT® air filtration line in target customers (industrial production facilities) and core technology (industrial air purification).
• Mayfran International: US-headquartered specialist in chip processing, chip conveyors, and coolant management systems for metalworking. Directly comparable to LIQUI Filter's Spänesysteme (chip systems) product line and to its KSS coolant filtration range, serving similar CNC and machining customers.
• Kemper GmbH: German manufacturer of industrial air filtration and welding fume extraction equipment, serving metalworking customers across Europe. Comparable to LIQUI Filter in technology and end-market, with overlapping product positioning in oil mist and smoke separation.

Broad incumbents

• Donaldson Company: US-headquartered global industrial filtration leader offering air, liquid, and process filtration across multiple industries. Serves many of the same metalworking customers as LIQUI Filter but as a broad incumbent with extensive R&D, global service network, and a much larger product portfolio.
• Mann+Hummel: German global filtration giant primarily known for automotive filtration but with a substantial industrial filtration division. Comparable to LIQUI Filter as a broad incumbent in industrial air and liquid filtration serving European manufacturing customers.

Emerging players

• Lechler GmbH: German precision nozzle and spray technology specialist with adjacency into coolant and process fluid management for metalworking. Partial overlap with LIQUI Filter's KSS filtration in serving CNC and machining applications where coolant delivery and filtration intersect.
• Riedel Filtertechnik: German specialist in industrial coolant and process fluid filtration for metalworking and surface treatment. Comparable to LIQUI Filter's KSS filtration portfolio in addressing emulsions, oils, and process liquids for CNC machine operators.
• FILTRA GmbH: German manufacturer of industrial filtration and separation equipment including coolant filtration, magnetic separators, and filter media for metalworking. Comparable to LIQUI Filter's KSS product range and consumables business in target segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

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 Liqui Filter