Successfully in the market for over 50 years

Your reliable partner for maritime auxiliary and emergency power supply systems. Built, maintained, and advanced – since 1976.

#ALWAYSONESTEPAHEAD

MTU logo featuring blue and red slanted rectangles with white lettering.
ZF logo in blue, consisting of the letters Z and F, surrounded by a circle.
Dazn logo with black text and red play symbol.
Northern Lights logo with red background and the addition "Power & Energy" in a white box.
John Deere logo with a leaping deer and the word "Power" on a yellow background.
Red AutoZone logo on white background, a US retailer for automotive spare parts and accessories.
Servogear logo in blue with a stylized gear and lettering.
Wizeman Marine logo in black and white with a stylized wave and star representation.
Synology logo with black lettering and blue symbol on the left.

WE THINK IN ENGINE LIFE, NOT IN ORDERS

NINE STEPS. ONE CIRCLE.

A power unit is not created in the assembly hall. It originates in the initial consultation – and its journey does not end with delivery. Nine steps lead from the customer's requirement to operational use on board. And because maintenance, repair, and spare parts supply feed back into the planning of the next power unit, the cycle is complete.

Everything from a single source. All under one roof. And always from the same people who, even years later, still know exactly how your system was built. Every step at SDT. Every step documented.

Working with engines since 1976

50 years of experience:
100% trust

We ensure that your propulsion power never fails. Since 1976, we have been building, maintaining, and developing maritime energy and propulsion technology. With over 5,000 units serviced. With authorized partnerships. With people who know what matters at sea.

SDT AGGREGATE CONSTRUCTION

Customized aggregates for maritime applications – developed, assembled, and tested on our own test bench before they are deployed.

More about SDT Aggregate Construction
Techniker in blauer Arbeitskleidung arbeitet an einer großen Industriemaschine in einer Fabrikhalle.

SDT SERVICE

Maintenance, overhaul, and troubleshooting for aggregates, engines, and gearboxes – experienced, available worldwide, and reachable 24/7.

More about SDT Service
Mann in blauer Arbeitskleidung arbeitet mit Werkzeug an einer Maschine.

SDT SPARE PARTS SALES

Original parts and certified components for maritime systems – we determine the actual requirement and deliver the right part at the right time.

More about SDT Spare Parts Sales
Handwerker in blauer Arbeitskleidung sortiert Werkzeuge in einem Lieferwagen.

SDT AUTOMATION

Intelligent control and automation solutions for maritime applications – precisely engineered, reliably integrated, and maintained long-term.

More about SDT Automation
Digitales Steuergerät mit blauem Gehäuse und Display, umgeben von Steuerknöpfen und grünen Anschlussklemmen.

Testing before it matters

Our test bench is one of the largest and most powerful in all of Northern Europe.

More about the SDT test bench
200 m²+
Modular test bench area
3
Test fields for trial runs of systems with a total output of up to 7.2 MW
900 kW
Water brake
4,000 kW
Water brake

SDT on LinkedIn

News from the shipyard

Laptop on a table displaying a website about efficient services, with a harbor and cranes in the background.

SDT Marine Diesel Technology Kiel GmbH is now an official Partner.SH partner.

16. June 2026

We are pleased to announce that SDT Marine Diesel Technology Kiel GmbH is now listed as a technology and innovation partner on the Partner.SH platform. This partnership increases our visibility within the regional innovation network and underscores our commitment to high-quality engineering services in the maritime and industrial sectors. Through this collaboration, we strengthen our network, foster professional exchange, and actively contribute to the development of future-oriented technologies in Schleswig-Holstein. Further information about our company profile on Partner.SH can be found here.

 

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