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Oil Quality Management

For 25 years, Martechnic has designed and developed oil test and analysis equipment to support the smooth running, optimal and reliable performance, and cost-effective maintenance of on-board machinery.


Martechnic specialises in oil quality management and provides engineers and users with on-site analysis equipment for condition monitoring of lubricant and hydraulic oil, such as marine distillate and marine residual fuels.

Crucial oil parameters can get measured either regularly with the help of portable oil test devices and test kits or on a continuous basis employing permanently installed advanced sensor technology.

Lube Oil Condition Monitoring: Test Kit LUBE OIL CHECK 5
Test Device TWIN CHECK 4.0: Digital Water in Oil and BN Test
Test Device IRON CHECK E: Digital Test for Chemical Determination of Total Iron Content in Cylinder Drain Oil (CDO), Patent Number: 2982974
MT Sample Retention System: Representative Samples of Fuel, Lube and Hydraulic Oil
Fuel Oil Sampling Equipment with a Tamper-Evident Seal
MT Modular Monitoring System: Lube and Hydraulic Oil Condition Sensors
AHHOI IR - Water In-Line Sensor, Patent No. 2009439
FE Sensor: Ferromagnetic Wear Particles in Lubricating and Hydraulic Oil

The key advantages Martechnic offers its customers include quick and precise information on any occurring changes or abnormal processes in the engine oil condition, effective decision-making on corresponding actions, as well as proper oil system predictive maintenance and the possibility to ensure optimal performance of critical machinery.

Fast and individual response, customer-specific applications and tailor-made solutions, efficient order processing and comprehensive logistic support relate to Martechnic’s principal business lines.

Portable oil test devices and test kits

A variety of portable test devices and test kits is developed and designed by Martechnic to check directly on-site and beyond laboratory practice such essential parameters of lube and hydraulic oil as water-in-oil, alkalinity reserve (BN, TBN), viscosity, density and contamination with insoluble or metal particles.

Regular verification on the basis of trend analysis enables early detection of irregularities in the oil condition. Quick and accurate test results with possibility of immediate assessment help to effectively implement condition-based maintenance programs.

Test cabinets for on-board analysis of fuel and oils

To support vessels with their own on-board oil analysis laboratory, Martechnic supplies a Fuel and Lube Oil Test Cabinet, which contains a selection of portable test devices for easy and fast condition analysis of all principal parameters of fuel, lube and hydraulic oil.

Owing to instant availability of test results, the quality of the delivered bunker fuel and the condition of lubricants and hydraulic oil in use can be regularly monitored and promptly evaluated. This helps to ensure the smooth operation of constituent engine parts as well as provides immediate decisions regarding maintenance, including the possibility of prolonging maintenance intervals.

Sampling equipment for representative oil samples

Accurate results of oil condition analysis imply the availability of representative oil samples. Martechnic offers a full range of sample bottles, cubitainers, drip samplers and sampling kits elaborated for safe collection, retention and transport of representative samples of fuel, lube and hydraulic oil. Sampling bottles differ in size, shape and material depending on the oil to be tested.

All sampling equipment for fuel oil samples is in compliance with MARPOL Annex VI requirements. For collection of primary bunker fuel samples during bunkering, Martechnic supplies manual-valve drip samplers equipped with cubitainers which are attached and reliably protected from tampering and contamination through the special sealing system. Safe storage of retained fuel oil samples is achieved by means of a combination of sampling bottle, proper label made of tear resistant and tamper proof material and individually numbered sealing.

Martechnic’s Sampling Kit is a vacuum hand pump with a flexible tube coupled with an adaptor at a sample bottle. The kit is suitable for sampling collection from different parts of the oil tank, and can be applied to determine free water in the oil tank and possible ongoing friction processes.

Advanced sensor technology for continuous oil condition assessment

Undetected changes in condition of lubricating and hydraulic oil can cause malfunctions in machinery systems. Installation of on-line or in-line sensors provides continuous 24/7 monitoring of essential oil parameters and enables real-time detection and tracking of any occurring changes.

Martechnic has developed a Modular Monitoring System, which encompasses various sensors (viscosity, particle, humidity, FE and water-in-oil sensors) and due to its modular design can be installed in accordance with individual customer-specific application needs.

On-board a vessel, the sensors can be installed for controlling the oil condition in generators, main engines and hydraulic systems. The possibility to set an individual alarm level for each oil parameter under surveillance enables an immediate warning as soon as the critical range is reached, allowing immediate corresponding actions and determination of the root cause of the problem.

All the sensors can be connected with the all-purpose display and data processing unit Datalogger for easy recording, transmitting, displaying, reading and storing of the data.

For continuous monitoring of absolute content of water in lubricants Martechnic has developed the AHHOI – Infrared Water-in Oil Sensor. Installed in the bypass, the sensor measures water molecules present in oil up to 10,000ppm / 1.0% vol. irrespective of the state of water: saturated, emulsified or free. The sensor can be used in a combination with a manifold for monitoring the condition of up to four engines (for example the main engine, hydraulic systems or stern tube seals).

Ultrasonic cleaning equipment

Martechnic offers ultrasonic cleaning tanks, generators, submersible transducers and cleaning liquid for safe, thorough and efficient cleaning of different engine parts (for example, cylinder covers, coolers, valves, lube and fuel oil filters) and in particular difficult-to-reach areas. Alongside standard sizes, customized options can be ordered.

Modular Monitoring System

In order to provide continuous and comprehensive assessment of the quality of lubricating and hydraulic oils, Martechnic® has created the MT Modular Monitoring System; an assembly of various sensors that measure different oil parameters in real-time mode.

Compa Dens Check

Upon delivery the quality of bunker fuel has to be assessed taking into consideration its density, stability and compatibility parameters.


Iron concentration in cylinder drain oil is an important parameter to measure regularly in terms of the determination of engine wear condition, and in particular wear rate of cylinder components.


Catalyst fines (hard particles of abrasive nature consisting of aluminium and silicon oxide) often remain in bunker fuel after the catalytic cracking process of crude oil and are extremely harmful to engine parts.


The test device TWIN CHECK 4.0 has been developed and designed by Martechnic® in the framework of the digitalisation concept to provide customers with a cost-effective technical solution for regular on-site measurements of two critical oil parameters.

Martechnic Corporate Video

An insight into Martechnic’s products and technical solutions for effective management of fuel, lube and hydraulic oil condition. On-site analysis equipment provides engineers and users with precise measurement of critical oil parameters.

IMO 2020: VLSFO and On-Board Testing Strategy

This white paper focuses on the first experiences with new types of VLSFOs and several problematic issues related to fuel oil quality. Martechnic explains why the application of portable, on-board oil analysis equipment can be regarded as a reliable solution in supporting on-board fuel testing strategy, in order to effectively manage new VLSFO batches.

Advantages of Regular / Continuous Oil Condition Monitoring

The paper offers the practical example of trend analysis application with regard to two monitoring methods of water-in-oil concentration: regular (with improved and upgraded portable test device TWIN CHECK 4.0) and continuous (with advanced infrared sensor AHHOI).

The Role of Sensor Technology for Condition Monitoring of Environmentally Acceptable Lubricants (EAL)

Internationally recognised standards on protection of marine environment and the corresponding legislation adopted by the US Environmental Protection Agency (EPA) in 2013 'vessel general permit' (VGP) limit the application of traditional mineral based oils for vessels entering the US waters and establish instead the necessity of use of environmentally acceptable lubricants for machinery parts below the waterline (such as stern tube bearings, thruster gearboxes and horizontal stabilisers).

Crucial Oil Quality Check

Most contamination of lube oil is through water that causes problems and damage in machines and engines.

Martechnic to Exhibit at Posidonia 2022

Regarding the challenges which the global maritime community is currently experiencing, Martechnic considers Posidonia as a unique platform for all international maritime stakeholders to provide dialogue and network possibilities to discuss key themes.

25 May 2022

Martechnic Celebrates 25 Years in Business

The cornerstone of our business’ philosophy for the past 25 years has been offering engineers, technical maintenance personnel, and end-users innovative oil analysis equipment for on-site applications.

18 March 2022

Martechnic Celebrates 20-Year Anniversary

In 1997 began the successful story of Martechnic. Founded by today's managing director Ingo Herholdt, at Schnackenburgallee in Hamburg, the company grew rapidly, so that they moved to the current location, Adlerhorst 4. Meanwhile, his son, Frank Herholdt, has joined the management.

18 September 2017

Martechnic at Marine Maintenance World Expo 2017

Like last year, Martechnic© will be part of the Marine Maintenance World Expo taking place in Amsterdam from 6-8 June 2017. The trade fair and conference is a meeting place for companies dealing with international maintenance and repair technologies in shipping. Mr. Herholdt from Martechnic© and their partner Goltens Group are looking forward to your visit at booth 4020.

24 May 2017

Martechnic Now Exclusively Represents Goltens in Germany

Starting from November 2016, Martechnic is officially appointed as an authorised agent of the Goltens Group on the German market. Taking this new step, the Hamburg-based company further broadens the spheres of its business activities in the oil quality management and condition monitoring of fuel, lubricating and hydraulic oil and adds to its profile the representation of Goltens' on-site services of diesel engines and related equipment.

25 November 2016

Martechnic to Showcase New Products at Seatrade Maritime Middle East (SMME) 2016

From 31 October to 2 November 2016, Martechnic® will attend the largest exhibition of the international shipping industry in the Middle East area - the Seatrade Maritime Middle East in Dubai, UAE. The company will share the joint stand of its regional business partner of many years - the M.I.E. Overseas and would like to invite all visitors and participants to attend the stand L13.

13 October 2016

Martechnic Successfully Introduces New ‘Industry 4.0’ Products at SMM 2016

This year SMM, the leading international trade fair, had its main focus on innovative technical solutions, and in particular digital transformation for the maritime sector. In the context of difficult market situation and current challenges faced by global shipping industry, automation and digitalisation are regarded as potential long-term benefits which the concept of 'Industry 4.0' offers.

15 September 2016

Martechnic® to Exhibit Smart Products at SMM 2016: Switch to Industry 4.0

As a preview to SMM 2016 and its special theme 'Digitalisation' Martechnic® is ready to present its newly developed Industry 4.0 concept in the area of portable test devices for on-site quality management of fuel, lube and hydraulic oil. This year the company has been focusing on digital technology development and will be showcasing its two new smart products at SMM.

31 August 2016

Martechnic at Posidonia and Marine Maintenance World Expo 2016

In June 2016, Martechnic® will be a part of two major international trade shows in Europe and will be exhibiting a wide range of its products designed to provide engineers and users with effective technical solutions for on-site oil quality management.

24 May 2016

Cat Fines Early Detection: Effective Monitoring of Heavy Fuel Oil on Board

One of the objectives of ensuring the required quality of the heavy fuel oil on board of a vessel is to monitor it for the presence of cat fines. As cat fines are extremely abrasive particles of various sizes that can cause severe damages to the components of the engine system, the bunker fuel oil undergoes a purifying procedure in a separator prior to being used for a vessel's engine operation.

16 March 2016

Martechnic® at Marine Maintenance World Expo

Martechnic® has announced it will be at the Marine Maintenance World Expo in Brussels. The world's only exhibition and conference dedicated to marine maintenance, repair tools, technologies and services, opens its doors from 14 - 16 October, with more than 50 speakers presenting must-see papers.

17 September 2014

Introducing the Portable Iron-Check

To determine the significance of iron content in lube oil, especially with regard to cylinder drain oil, Martechnic has developed an easy-to-handle iron test.

26 August 2014

MT Modular Monitoring System

The most common contaminate of lube oil is water that causes problems and damage in machines and engines.

16 July 2014
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