Van der Leun Installatiebouw BV
About us
Specialist in construction, dredging, offshore, yachting and maritime industries
Van der Leun works with 260 specialists worldwide on installation projects in the construction, dredging, offshore, yachting and maritime industries. Our specialities are grouped into three divisions:
- Electrical Marine Systems
- Electrobouw
- Metaalbewerking
Where possible, the divisions work together on innovative and reliable total solutions for leading companies all over the world. Our employees combine knowledge and experience with a no-nonsense mentality and service-oriented attitude. We want to actively contribute to a better living environment by making our processes as sustainable as possible.
From our main offices in Sliedrecht, the Netherlands, we operate branches on several continents. These branch locations allow us to be where our customers need us. We are also able to garner new practical experience and insights. This enables us to support our customers quickly, reliably, and personally. This makes us the premier global specialist in the area of maritime installation projects.
Products & services
The Battery van der Leun
In collaboration with van Alfen we present: The plug & play battery. A mobile solution for energy storage. This is an innovative application for ships that often use large diesel generators for low or inefficient energy consumption. For more information, contact us. E: Info@vanderleun.nl T: 0184 - 413288
Allround system integrator
Allround system integrator All-around system integrator Van der Leun is your specialist in the design, engineering, installation, and maintenance of reliable and efficient electrical systems for the maritime industry, including onshore and offshore operations. Our philosophy: implementing full control of all on-board processes with intelligent use of materials. In this respect we have the major advantage of being all-around system integrators, capable of implementing fully integrated on-board installations. Fully integrated installations allow you to monitor and control all your processes in a simple and uniform manner. Van der Leun is, of course, equally happy to take care of specific single parts of the installation work. From design to commissioning From the design to the commissioning phase our specialists work on the basis of a single work methodology, under strict project management procedures. We maintain full control of the whole process, including the supply of materials and parts. As a result, we meet the requirements of all major classification societies, including Bureau Veritas, Lloyds, the Netherlands Shipping Inspectorate, Rina, Chinese Shipping, Det Norske Veritas, Suez Canal Authorities, and Panama Regulations.
Metalworks van der Leun
Metal machining Cutting operations, sheet-metal working, and construction work are the spearpoint activities at the Van der Leun metal machining division (Van der Leun Metaalbewerking). As an independent division, this is an important supplier for our electrical installations. We also supply foundation blocks, equipment housing, cable chains, and similar equipment to a wide customer base.
Power Management System (PMS/AMS)
Van der Leun's power management system monitors and controls the electrical and mechanical aspects of your whole shipboard energy system. AMS allows you to manage the main circuits or to map the synchronization of the various units. Our software is always developed for your specific installation and configuration. This maximizes the efficiency and reliability of our systems.
Proximity switches sps 20- Van der Leun
Van der Leun proximity switches can be used for various applications. They are typically used in instances where metal detection is a prerequisite for safe working conditions. The SPS 20 features a durable SS 316 steel housing and a standard 10 meter cable. The system is designed to withstand oil and salt water in order to guarantee a long life cycle.
Cable chains van der Leun
Cable chains serve to guide the loose cables and hoses of machinery. They are mainly used to support cables and hydraulic lines that run from the fixed parts of the vessel to a flexible components or object. Examples are suction pipe systems, skidding systems, jacking systems, spud carrier systems, cutter ladders and crane systems. The Van der Leun cable chains are smart adaptable systems. Based on your project specifications, we calculate the radius and load-bearing capacity and provide the ideal cable chain for you. Our cable chains have proven their value on many occasions and in various applications worldwide. Given the great diversity of applications, each cable chain requires its own unique design. All cable chains are custom-made for each application and we import your application data using state-of-the-art 3D drawing systems. Our cable chains are made from high-grade, robust and solid stainless steel 316 that remains intact and continues to function optimally even under the most extreme conditions and with the heaviest vibrations on, for example, heavy-rock cutter suction dredgers. It is important to ensure that a cable chain is properly secured and that the radii of the ship or equipment-based cables and hoses are taken into account. This is at the heart of our standard procedures, based on quality and excellent workmanship. It is what makes us stand out. Want to know more? Feel free to contact us!
Heat exchangers - Van der Leun Electrical Marine Systems
Following the introduction of water-cooled power electronics in variable-frequency controllers, we designed our own Van der Leun heat exchanger. This heat exchanger has been specially developed to ensure a stable cooling water temperature while minimising condensation in the frequency controls. The heat exchanger - also known as the Hex Unit - is available in several variants. We also have a Mini Hex, which is the Hex Unit's little brother. Both units are designed in such a way that the components are easily accessible from the front for maintenance. The Mini Hex has a soldered heat exchanger and is smaller in size. The piping system also has a smaller diameter than its big brother, but due to the dual-stage vane pump its flow equals that of the big hex unit in certain situations. The standard capacity of the Mini Hex is 40KW, in the version with a plate heat exchanger it is also available with slightly larger capacities. The standard design of the Hex Unit comes with a plate cooler, which can be extended to 180 kW. Instead of a technical water system, seawater can be used for cooling. If required, the plate coolers can be supplied with a classification certificate. Both systems can be equipped with a single or double pump, and also for the supply of external and internal water the configuration may vary. The Hex Units have a dedicated control circuit with a three-way valve. An overpressure valve ensures that the pressure does not reach undesired levels. Deaeration of the system occurs at three locations: on the pump itself to prevent the seals running dry; on the cooler by means of an automatic deaerator, and by manual deaeration. The latter is also used for filling the system. Want to know more? Feel free to contact us!
Consoles - Van der Leun Metaalbewerking
Are you looking for new or replacement metal parts and products? Van der Leun Metaalbewerking has built a name regionally as a reliable partner for fast delivery of many different metalworking products. We use many different types of metals and alloys to provide our customers with the desired individual parts, assemblies, or complete constructions. We use machining to get the metal into the correct shape. Examples of machining include boring, grinding, turning, milling, planing and cutting. Metaalbewerking also includes sheet working techniques such as rolling, setting, cutting, forging, casting, and welding. With these techniques, we meet the many demands and requirements of our customers.
PROXIMITY SWITCH SPS20 - Van der Leun Electrical Marine Systems
We work aboard vessels that are deployed in very heavy and intensive operations in the dredging and offshore industry, in many varying conditions, in rain, wind, sun and ice and at temperatures ranging from -20 to 55 degrees. We incorporate the experience gained in these conditions into our installations and other products. This prompted the development of Van der Leun's proximity switches, among other products. The proximity switches can be used for various applications where the detection of metal is a must in order to create a safe working environment. Proximity switches generally do not last long in the circumstances described above. For instance, iron and other heavy tools may fall on the proximity switch and damage it. Van der Leun's heavy-duty switches can withstand such impacts due to its durable SS 316 steel housing, which can stand rough handling. As a standard feature, the SS 20 is equipped with 10 metres of cable, but smaller or greater lengths are possible on request. To guarantee a long service life, the cable is oil and seawater resistant. Each proximity switch is manufactured in a manual process and tested for functionality. We stock the sps20 as part of our standard range. Want to know more? Feel free to contact us!
Machining - Van der Leun Metaalbewerking
Our professional machining operation features the most modern equipment, such as a vertical turret lathe for impellers, flanges of ø 1600 mm x h 1000 mm, and a CNC-controlled milling machine. Our specialists know how to use these machines to make components that meet all your specific desires and needs.
Betabridge - Van der Leun Electrical Marine Systems
The manufacture of wheelhouse desks has been one of our specialities for many years. Take every detail into account, we link functionality to key aesthetic and ergonomic requirements. The result is the Bètabridge. Conspicuous features are rounded shapes, divisibility of the upper and lower sections, ease of operation and good sightlines. Because every ship is unique, we make desks entirely to measure. No size is impossible for us. Of course, you can also choose the colour you like. Because the bridge is the central spot of ships, it deserves extra attention and comforts, such as integration and accessibility of all necessary components from different suppliers. These have to be assembled and applied in various ways. As regular servicing is also important, depth-adjustable back plates make it possible to do this as efficiently and effectively as possible. In addition to supplying your desk, we can also make sure the desk integrates smoothly with all your ship's systems. Want to know more? Feel free to contact us!
ALARM MONITORING SYSTEMS MACS V4.0 (AMS) - Van der Leun Electrical Marine Systems
Van der Leun’s MACS Alarm Monitoring System is a Standardized, safe & easy operation and self-supporting system and has the possibility to integrate it to any system by using standard protocols like Profibus and Ethernet All its components are certified by Bureau Veritas, Lloyd’s, and its Chinese counterpart CCS, making future modifications both easy and cost-efficient. KEY FEATURES: Modular design. HMI design: Alarm, Channel configuration (Analog + Digital), Event history, Inhibits, Disabled alarms, Group alarms, Patrol timer, Cabin panels state/selection, Tank measurements, key side and System page (communication state of components). Fast ethernet network based remote IO. Centrally stored configuration and event history. Optimized user interface: Experience used since 2007 (v1), currently AMS sales version is at v3.Multi lingual: Multi lingual. 2 languages real-time selectable by operator. User login (by engineer of customer) to accommodate for changes by customer: Alarm channels behavior, alarm group selections, new alarms, alarm texts, analog ranges, tank level alarms, alarm inhibits and temporary disabling alarms (due to sensor failures) Data bus connection integration: Communicate with several systems (like Vodas / engines) Modbus serial / TcpIp / Rs232 / Rs485 and more. Integration of hardware: Integrated into the main switchboard delivered by Van der Leun or stand-alone to be integrated in main board delivered by another supplier. Additional custom options: Lay-up with external alarm capabilities. Data passthrough to other customer systems. Want to know more? Feel free to contact us!
Energy Management System (EMS) - Van der Leun Electrical Marine Systems
Since its foundation 100 years ago, Van der Leun has focused on innovation in the maritime sector. Our clients work on the most challenging projects where everything revolves around efficiency and innovation. We have the knowledge to make systems cleaner and more sustainable. Enhanced control and performance with the Energy Management System (EMS) The Van der Leun EMS is a system that can be deployed on every vessel and with new as well as existing installations. Installing the EMS allows you to achieve optimum efficiency with your drive system and to make a significant contribution to a cleaner environment and a better world. The system is used to monitor, control and optimise the performance of installed energy sources such as batteries and generators. It also continuously monitors and controls power sources based on load and battery charge status. Before a battery runs low, the EMS initiates appropriate action. The operator does not have to worry about charging batteries and manually changing power sources. The EMS is perfectly suitable for monitoring various strings of batteries, balancing the SOC between the sets when charging and discharging. More information? Please visit our website or contact us.
Sheet working - Van der Leun Metaalbewerking
Sheet working has always been one of the specialties of Van der Leun Metaalbewerking. In this area as well, we combine craftsmanship with modern equipment. We have a plasma cutting machine for the construction of fuel tanks and hydraulic tanks. We meet challenges head on to keep our customers more than satisfied. More information? Please visit our website or contact us.
Services & Strategic Maintenance - Van der Leun Electrical Marine Systems
As far as possible, we want to prevent malfunctions in your system. Investigation, preventive maintenance, advice, worldwide support and service are our key words to prevent mishaps and guarantee the continuity of your business operations. SERVICE: WHERE YOU WANT IT, WHEN YOU NEED IT Van der Leun is your reliable partner for all repairs 24/7. Planned and unplanned. Thanks to our worldwide service network, we take the work off your hands when and where you need us. Our service engineers arrive quickly, so that your vessel doesn’t have to lie idle longer than unavoidable, which saves you money. MAINTENANCE Testing, controlling, measuring, and checking Preventive maintenance? Choose the Van der Leun ship scan. We go through the entire electrical system of your ship. That way we spot ways to prevent breakdowns, with all their consequences and costs. We use the scan to test breakers, safety devices, software, networks and starters. We also measure the vibrations of the engines to identify worn or misaligned bearings in time. Finally, we test the insulation values of the cables against the prevailing standards. ADVICE & REPAIR Maximum return from your existing systems Van der Leun has focused more and more on renovation and retrofitting of existing marine systems. By updating your software or your system, we can ensure that you get the maximum return from your existing systems (for example, innovations for sustainability). We can also expand your systems according to your wishes and needs. That way you get everything you can from your existing fleet before it’s time to invest in new ships. More information? Please feel free to contact us!
Parts & Trading - Van der Leun Electrical Marine Systems
Do you want independent advice on delivery of parts and the best brands to order? We’d be glad to help. We keep a list of the parts and systems we deliver to you. That way, we can always offer a replacement part quickly, often from stock. We handle our own logistics, sorting, marking, packing and dispatch. We can also quickly find suitable replacement parts for systems supplied by third parties. You are assured of fast, effective service.
Drive technology - Van der Leun Electrical Marine Systems
As a pioneer in the area of drive technology, our strength lies in years of experience, professional knowledge and development of innovative concepts. We have provided appropriate drive systems for many projects, independent of a specific brand or manufacturer so that you remain flexible. These include hybrid systems, winches, cutters, pumps, hoisting gears and propulsion systems.
System activities - Van der Leun Electrical Marine Systems
In the realisation of your new electronic systems, we can provide guidance with the whole process from installation to commissioning. We make sure that all the steps proceed efficiently and your system is ready for you to use safely and on time. WORKSHOP From design on paper to practice Our professionals in the workshop translate your design plans into reality. Then the end products are created, from bedplates to switchboard panels. We test and certify them before they are shipped out so that you are assured of quality and reliability. INSTALLATION Efficient and on time Our project team and our people on site are responsible for supervision, coordination and technical support. This means your system is realised efficiently and on time, and it exactly meets your requirements as well as those of the international standards and classification societies. COMMISSIONING High quality and reliability When your new system is commissioned, we don’t just make sure that everything works properly. Everything is tested and simulated for the demands of the environment in which you, the customer, work. We also give clear information about the system and instructions on how to operate it. This is how we guarantee high quality and reliability. Do you want more information? Feel free to contact us!
Mobile Application Scio
Royal Van der Leun launches the all-new Scio app at the end of 2023. It's the ultimate virtual assistant that you won't want to be without if you deal with maritime switchboards daily. Scio means 'I know' in Latin. With the Scio app on your phone or tablet, you can scan every component in your maritime switchboard to, for example, retrieve the article number or you can click through to see the current drawing of the relevant component. The Scio app is being implemented for the first time on the largest autonomously sailing, 3D-printed ferry, which will transport athletes and visitors in Paris. But other customers of Royal Van der Leun can also get the app for free when purchasing electrical installations. Curious about Scio and how it can be benefitial for you? Step by Royal Van der Leun on Maritime Industry, download Scio from the appstore and see how Scio enriches your modern toolbox.