

Karberg & Hennemann srl
About us
KARBERG & HENNEMANN srl is a long-established Modena and Hamburg-based company and, together with the Danish CJC® Group, develops and manufactures the world-renowned CJC® Oil Maintenance Systems – made in Germany and Denmark.
CJC® solutions protect drive and maneuvering systems as well as hydraulics from wear, reduce downtime risks and ensure more economical and sustainable ship operation.
𝗖𝗝𝗖® 𝗙𝗹𝘂𝗶𝗱 𝗖𝗮𝗿𝗲 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 𝗳𝗼𝗿 𝗼𝗻𝗯𝗼𝗮𝗿𝗱 𝗮𝗻𝗱 𝗶𝗻-𝗽𝗼𝗿𝘁 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀:
• Lubricating oil filters for engines
• Fuel purifiers and tank cleaning systems
• Thruster filters
• Hydraulic filters
• Gearbox filters
• Offline filters
• Filter separators
• Water separators/dewatering systems
• Oil filters for bio-oils/EAL
• Varnish removal filters
• Oil separators/oil removers for bilge, process and waste water
𝗧𝗿𝘂𝘀𝘁𝗲𝗱 𝗽𝗮𝗿𝘁𝗻𝗲𝗿 - 𝗧𝗿𝘂𝘀𝘁𝗲𝗱 𝘁𝗼 𝗸𝗲𝗲𝗽 𝘆𝗼𝘂 𝗿𝘂𝗻𝗻𝗶𝗻𝗴
For over 70 years, CJC® technology has been a globally recognised partner to the shipping industry. What began in maritime sector has been consistently transferred to other demanding industries – always with a focus on maximum operational reliability. The latest generation of our lubricating oil filters sets new standards in oil and fuel maintenance for gas, 2-stroke and 4-stroke marine diesel engines: higher purity classes, lower consumption and maximum efficiency. The result is a measurable reduction in energy consumption, lubricating oil losses, oil sludge and CO₂ emissions – developed in close cooperation with engine manufacturers and operators.
𝗬𝗼𝘂𝗿 𝗲𝘅𝗽𝗲𝗿𝘁𝘀 𝗳𝗼𝗿 𝗹𝘂𝗯𝗿𝗶𝗰𝗮𝗻𝘁 𝗮𝗻𝗱 𝗳𝗹𝘂𝗶𝗱 𝗺𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲
We offer much more than just products: our expertise covers all aspects of lubricant and fluid care – including tribological relationships. Regular training and internationally recognized qualifications ensure that our specialists are always up to date with the latest developments. With over 70 years of experience in shipping, industry, energy and mining, we develop customized solutions instead of standardized off-the-shelf concepts.
𝗠𝗼𝗿𝗲 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻 𝗮𝘁 𝘀𝗲𝗮 𝗮𝗻𝗱 𝗶𝗻 𝗽𝗼𝗿𝘁
CJC® Fluid Care Systems ensure the reliable operation of propulsion, maneuvering and hydraulic systems – in port and at sea. Clean lubricants reduce wear-related failures and prevent unplanned downtime. This keeps supply chains stable and ensures maneuverability at all times, even under demanding conditions.
𝗠𝗼𝗿𝗲 𝗲𝗰𝗼𝗻𝗼𝗺𝗶𝗰𝗮𝗹 𝗮𝗻𝗱 𝘀𝘂𝘀𝘁𝗮𝗶𝗻𝗮𝗯𝗹𝗲 𝘄𝗶𝘁𝗵 𝗖𝗝𝗖®
With CJC® Fluid Care Systems, operators can sustainably reduce their operating costs and emissions. Less wear, longer lubricant service life and reduced CO₂ emissions improve both OPEX and CII. Thanks to rapid amortization, the investment often pays for itself after a short time – both economically and ecologically.
Products & services

CJC® Fuel Purifier
CJC® Fuel Purifiers are specially designed for cleaning diesel fuel. The filtration technology removes large amounts of water, particles, oxidation and ageing products, sludge, acidic components and microbiological contaminants with extremely high efficiency. The filter is used in diesel engines as well as in storage and bunker tanks and ensures consistently high fuel purity – regardless of engine operation. 𝗬𝗼𝘂𝗿 𝗮𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀 𝗮𝘁 𝗮 𝗴𝗹𝗮𝗻𝗰𝗲: • Extended service life of the engine, injection system and fuel pump • Reduction in costly engine failures and maintenance measures • Improved engine performance and operational reliability • Continuous fine and depth filtration with coalescence • Protection against sludge formation and functional malfunctions • Reduced effort for tank cleaning

CJC® Lube Oil Purifier
CJC® Lube Oil Purifiers clean, dry and maintain the engine oil in gas and 2/4-stroke diesel engines efficiently and cost-effectively. Regardless of the fuel used – from natural gas and diesel to special fuels such as heavy fuel oil, landfill gas or distillates – the systems can be precisely adapted to the respective engine conditions and oil contaminants. The latest generation of CJC® Lube Oil Purifiers sets new standards in lubricating oil treatment for gas engines and marine diesel engines. Higher purity classes, increased pump performance and significantly reduced filter cartridge consumption enable use even on large engines. Developed in close cooperation with engine manufacturers and operators, CJC® Fine and Depth Flter Inserts are specifically designed for the specific contaminants found in modern engine oils. 𝗬𝗼𝘂𝗿 𝗮𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀 𝗮𝘁 𝗮 𝗴𝗹𝗮𝗻𝗰𝗲: • Extended oil change intervals and lower lubricating oil consumption • Maximum wear protection with reduced maintenance and overhaul costs • High reliability and availability due to minimised downtime • Significantly lower energy consumption and reduced emissions • Up to 60% less lubricating oil loss and significantly less oil sludge • Relief for engine oil filters and reduced filter change intervals Unlike conventional systems, CJC® lubricating oil filters offer operators significant advantages in terms of lubricating oil treatment: • Approx. 𝟵𝟳% 𝗹𝗲𝘀𝘀 𝗲𝗻𝗲𝗿𝗴𝘆 𝗰𝗼𝗻𝘀𝘂𝗺𝗽𝘁𝗶𝗼𝗻 • Up to 𝟲𝟬% 𝗹𝗲𝘀𝘀 𝗹𝘂𝗯𝗿𝗶𝗰𝗮𝘁𝗶𝗻𝗴 𝗼𝗶𝗹 𝗹𝗼𝘀𝘀 • Approx. 𝟵𝟵% 𝗹𝗲𝘀𝘀 𝗼𝗶𝗹 𝘀𝗹𝘂𝗱𝗴𝗲 𝗮𝗻𝗱 • Up to 𝟵𝟲% 𝗹𝗲𝘀𝘀 𝗖𝗢𝟮 emissions.

CJC® Thruster Filter
CJC® Thruster Filters dry, clean and maintain gear oils efficiently and cost-effectively. Whether you have fixed or adjustable propellers, yachts or container ships – and regardless of whether you use mineral oil or biodegradable lubricants – CJC® Thruster Filters can be configured precisely for your specific application. Integrated into the offline or lubricating oil circuit, they continuously ensure maximum oil purity. They reliably remove water, wear particles, oil ageing products, acids and microbiological contaminants. 𝗬𝗼𝘂𝗿 𝗮𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀 𝗮𝘁 𝗮 𝗴𝗹𝗮𝗻𝗰𝗲: • Extended service life of the gear oil – even with high water content • Optimal wear protection with reduced maintenance and repair costs • Minimization of unplanned downtime and outages • Consistently high oil purity for maximum maneuverability and operational reliability

CJC® Hydraulic Filter
Efficient hydraulic oil maintenance requires the continuous removal of particles, water, oxidation residues and acids from the hydraulic oil – around the clock. Only permanently clean and dry hydraulic oil ensures reliable and economical operation of hydraulic systems on board. 𝗬𝗼𝘂𝗿 𝗮𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀 𝗮𝘁 𝗮 𝗴𝗹𝗮𝗻𝗰𝗲: • Up to tenfold increase in the service life of hydraulics, pumps, valves and cylinders • Reduced oil consumption and lower CO₂ emissions for greater sustainability • Reliable function and precise controllability of valve technology • Relief of the main flow filters and reduced filter changes • Prevention of unplanned downtime for smooth loading and unloading processes

CJC® Condition Monitoring Systems
CJC® Condition Monitoring Systems enable continuous condition monitoring of filters, lubricating oils and hydraulic oils. Using modular sensors and particle counters, they provide accurate real-time data on the condition of oil and machinery – regardless of whether it is hydraulic and lubrication systems, gearboxes or engines. Sensor packages, data transmission and automated data interpretation can be individually configured. System-specific limit values can be defined as an early warning system via intuitive dashboards. This enables operators to detect deviations from the normal state and incipient wear at an early stage and take countermeasures in a planned and cost-efficient manner. 𝗬𝗼𝘂𝗿 𝗮𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀 𝗮𝘁 𝗮 𝗴𝗹𝗮𝗻𝗰𝗲: • Plannable, condition-based and cost-efficient maintenance • Avoidance of unplanned, costly failures and downtime • Maximum wear protection and extended component service life • Optimised oil change intervals based on real condition data • Reduced administrative effort • Documentation of required oil cleanliness to secure warranty claims
