Karberg & Hennemann

What Karberg & Hennemann does

Karberg & Hennemann GmbH & Co. KG, operating commercially as CJC®, is a Hamburg-based German specialist manufacturer of offline fine filtration and oil care systems, founded in 1928 and producing its CJC® product line since 1951. The entity operates as part of the C.C.JENSEN group, with a wholly-owned Italian subsidiary in Modena, and holds ISO 9001:2015 certification issued by SGS. Its core technology is side-stream (offline) depth filtration using 100% natural-fiber filter inserts (no plastic, no metal), installed independently of the main oil circuit to remove particles, water, oil degradation products, and acids in a single pass. The product portfolio spans offline filter families (15/12 through 727/108), desorber dewatering units (D10–D85), filter separators, varnish removal units, transformer oil units, HDU filter units for wind energy, mobile gear-flushing equipment, and the CJC® Oil Care 4.0 monitoring platform combining sensors with a cloud application.

The business is sales-led, distributing in Germany and Austria through regional sales managers with on-site consultation, in Italy through its Modena subsidiary, and across more than 60 countries through C.C.JENSEN-affiliated entities. Revenue mechanics combine one-time equipment sales with a recurring consumables annuity from periodic fine filter insert replacements (typically annual), supplemented by rent-to-buy arrangements (up to 12 months) and all-inclusive subscription care packages. Pricing is quote-based and customized per machine and application.

The company serves industrial manufacturing, maritime, power generation, wind energy, and mining customers, with named enterprise references including Hapag-Lloyd, BMW, Grundfos, Liebherr Components, Otto Fuchs, MENNEKES, Holcim Philippines, and NEYR Plastiques. Trade fair participation (SMM, AMB, WindEnergy, Maintenance Munich, MEGAWATT) and bilingual digital presence support a hybrid field-and-content go-to-market.

Name

Karberg & Hennemann

Legal name

Karberg & Hennemann GmbH & Co. KG

Website

https://cjc.de

Company type

Private

Founded year

1928

Operating status

Operating

Headcount range

11–50 employees

Short description

Karberg & Hennemann GmbH & Co. KG (CJC®) is a Hamburg-based German manufacturer of offline fine filtration and oil care systems, serving industrial, maritime, power, and wind-energy customers in 60+ countries via direct sales, an Italian subsidiary, and global distribution, with recurring filter-cartridge revenue.

Ownership category

akta.pro rank

Product category

Industrial Oil & Fluid Filtration Equipment

NAICS

Commercial and Service Industry Machinery Manufacturing (333310)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590)

akta.pro primary industry

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

Keywords

• Offline oil filtration
• Fine filter systems
• Oil care systems
• Industrial fluid filtration
• Condition-based oil monitoring

Headquarters

HQ city

Hamburg

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Oil Care Systems Sales: Sale of CJC® oil care and fluid care systems including offline filters, filter separators, desorbers, and monitoring units. Systems are customized for specific machines and applications.
2. Fine Filter Inserts Replacement: Recurring sales of replacement fine filter cartridges. Filter inserts require periodic replacement (e.g., annually) based on usage and contamination levels.
3. Rental Options: Rent-to-buy option for oil care systems for up to 12 months with purchase option at the end. Provides flexibility for customers testing the technology.
4. Subscription/All-Inclusive Package: Full-service subscription package covering all-inclusive care including system maintenance, filter changes, and support.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Karberg & Hennemann manufactures and sells CJC® offline (bypass) fine filtration systems, desorber dewatering units, filter separators, and supporting natural-fiber filter inserts for the treatment and care of industrial oils, hydraulic fluids, lubricants, and fuels. The company also supplies condition monitoring sensors and a cloud-based oil care analytics platform under the CJC® Oil Care 4.0 sub-brand, selling customized systems via direct sales to industrial customers.

Product overview

Karberg & Hennemann GmbH & Co. KG, trading as CJC®, is a German specialist manufacturer of fluid and oil care systems with 73 years of experience (founded 1928; CJC® brand production since 1951). The product portfolio centers on the CJC® Offline Fine Filter line — bypass filtration systems installed independently of the main hydraulic/oil circuit — supported by specialized product families including Desorber dewatering units, Varnish Removal Units, Filter Separators, Fluid Care Units, Transformer Oil Units, and the CJC® Oil Care 4.0 monitoring platform. The portfolio also encompasses condition monitoring hardware (Oil Contamination Monitor, Condition Monitoring Unit), cloud-based analytics, and a full range of 100%-natural-fiber Fine Filter Inserts and accessories. Products serve diverse industries including industrial manufacturing, maritime, power generation, wind energy, and mining.

Differentiator

Problem solved

Functional benefit

Brands

• CJC® Ölpflege 4.0: Digital oil care solution with real-time sensors for condition monitoring and state-oriented oil changes
• HDU Filter Units
• Desorber
• Filter Separator
• Varnish Removal Unit
• SIPP Node
• Oil Contamination Monitor

Products and services

• CJC® Offline Fine Filters Offline (bypass) fine filter systems in sizes 15/12, 15/25, 27/-/AL, 27, 38/100, 427/108, and 727/108 that remove particles, water, oil degradation products, and acids from operating fluids independently of the main flow, extending oil service life and protecting machine components for industrial customers.
• CJC® Filter Separators Combined fine filtration and water separation systems in sizes 15/12, 15/25, 27/-, 327/-, 427/-, 727/-, including diesel variants, removing particulate contamination and free/micronized water from fuel and oil systems for industrial and marine users.
• CJC® Desorber Units Thermal desorber units (D10, D30, D40, D85) that remove dissolved and emulsified water from oils through heating and vacuum stripping, restoring oil properties without chemical additives for industrial oil maintenance customers.
• CJC® Desorber-Filter-Unit Combinations Combined desorber and fine filter units (D5, D10, D30CU, D40CU) that integrate oil drying and dewatering with particle removal in a single system; D30CU separates oil-water emulsions and D40CU enables oil recovery.
• CJC® HDU Fine Filter Units for Wind Energy Offline fine filter units (HDU 15/25, HDU 27/-) configured for wind turbine nacelle environments, targeting gear oil and hydraulic fluid care with extended maintenance intervals for wind farm operators.
• CJC® Key Filter for Wind Energy Specialized fine filter cartridge designed for wind turbine gearboxes and hydraulic systems, providing high dirt-holding capacity with natural fiber filter media for wind energy operators.
• CJC® Fine Filter Units for Quenching Oil Fine filter systems configured for hardening and quenching oils used in heat treatment processes (sizes 38/100, 427/108, 727/108), maintaining oil purity to ensure consistent hardness results and extend bath life.
• CJC® Varnish Removal Unit 27/108 Specialized offline filtration unit that removes varnish, lacquer, and oxidation products from turbine and hydraulic oils, addressing thermal degradation that causes bearing and valve failures in power plant and industrial applications.
• CJC® Fluid Care Unit Comprehensive offline fluid care system for general industrial fluid maintenance, combining multi-contaminant removal (particles, water, acids, degradation products) in a single bypass installation.
• CJC® Lube Oil Filters for Gas and Diesel Engines Offline filtration systems for engine crankcase and lube oil circuits, removing wear particles and soot to extend oil drain intervals and protect engine components in gas and diesel engine applications.
• CJC® Cooling Lubricant Filters Fine filtration systems for cooling lubricants used in metalworking, removing swarf and contamination to extend coolant life and improve part surface quality for machine shop customers.
• CJC® Thruster Filters Specialized offline filters for ship thruster and azimuth drive gear oils, removing water and particles to protect critical marine propulsion components for shipping operators.
• CJC® Transformer Oil Units Bypass filtration and dewatering units (2R27/108, 3R27/108) for transformer and insulating oils, maintaining dielectric strength and extending transformer service life by removing moisture and particulate contamination.
• CJC® SIPP Node Automatic drainage systems (models 500, 2000, 5000) for transformer pit water accumulation, continuously removing free water from collection basins to prevent moisture ingress into transformer tanks for power utilities.
• CJC® Oil Contamination Monitor Real-time online sensor for measuring oil particle count and contamination levels, enabling condition-based oil changes and early detection of system contamination trends for industrial maintenance teams.
• CJC® Condition Monitoring Unit Multi-parameter online monitoring unit that tracks key oil condition indicators (particle count, moisture, temperature), providing continuous machine health data for predictive maintenance.
• CJC® Cloud Application for Oil Sensors Cloud-based data platform for CJC® oil sensors enabling real-time analysis, trend monitoring, and remote evaluation of oil condition data across multiple machines or sites for industrial customers.
• CJC® Oil Care 4.0 Integrated oil care monitoring platform combining CJC® condition monitoring hardware with cloud-based analytics for real-time, condition-based oil and fluid maintenance across industrial applications.
• CJC® Fine Filter Inserts Replacement depth filter cartridges made from 100% natural fibers (no plastic, no metal) in sizes 15/12, 15/25, 27/-, 38/100, 27/100, 327/-, 427/-, 727/-, providing high dirt-holding capacity and fine particle removal across all CJC® filter housing sizes.
• CJC® Cleaning Tables (RT 40 Series) Manual parts cleaning stations (RT 40, RT 40 H, RT 40 G, RT 40 A, RT 40 AG, RT 40 ATEX, RT 40 XL) using fine filtration of cleaning fluids to remove oil, grease, and chips from machined components, available in standard, ATEX-explosion-proof, and extra-large configurations.
• CJC® Mobile Gear Flushing Units Mobile oil filtration and flushing units (27/108, 4x27/108, Mobile 27/108) for cleaning gearboxes and hydraulic systems on-site, capable of restoring contaminated oil to near-fresh-oil condition within hours without system shutdown.
• CJC® Oil Absorb 38/- Absorbent filter insert that captures and retains free water from oil systems through absorption, providing an additional water removal mechanism alongside desorber and fine filter solutions.

Quantifiable outcome

• Up to 4 years of hydraulic oil use with filtration in ceramic press applications
• +3 more outcomes

Named customers14 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• MANN+HUMMEL: Global filtration leader primarily known for automotive and industrial filters. Competes broadly with CJC® in industrial fluid filtration as part of a much wider portfolio.
• Parker Hannifin: Diversified motion and control technologies company with a substantial industrial filtration division serving hydraulics, lubrication, and process fluid applications across the same verticals as Karberg & Hennemann.
• Eaton: Industrial conglomerate with a filtration division providing hydraulic and lube oil filtration solutions. Overlaps with CJC® in industrial fluid care for power, manufacturing, and mobile equipment.

Direct peers

• C.C.JENSEN A/S: Danish parent company of Karberg & Hennemann and global brand owner of CJC® oil care systems. Effectively the same product family sold through different geographic entities.
• Hydac International: German-based specialist in hydraulic fluid filtration, accumulators, and cooling systems. Directly competes with CJC® offline filtration offerings in hydraulics-heavy applications.
• Pall Corporation: A Danaher-owned global leader in industrial filtration including offline fine filters for hydraulic oils, lubricants, and process fluids. Most direct large-scale competitor to CJC® in industrial oil care.
• Donaldson Company: Major industrial filtration manufacturer with broad product lines covering hydraulic, lube, and fuel filtration. Competes with Karberg & Hennemann across mining, manufacturing, and power generation end markets.
• Boll & Kirch Filterbau: German manufacturer of industrial filtration systems for liquids and gases, serving power, marine, and process industries. Comparable German industrial filtration specialist with overlapping end markets.
• Mahle Industrial Filtration: Industrial filtration arm of Mahle Group, offering offline and inline filters for hydraulic oils, lubricants, and coolants. Direct competitor to CJC® in industrial fluid care applications.
• Filtration Group: Global industrial filtration platform with multiple brands covering air, liquid, and process filtration. Competes with Karberg & Hennemann in industrial oil and fluid conditioning systems.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC3QzSm_V0_5UurWfBFpn2gA
• LinkedInlinkedin.com/company/karberg-hennemann

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 Karberg & Hennemann