High-performance main drives for every challenge

The world of ship propulsion is diverse and constantly evolving. From traditional mechanical drives to hybrid solutions and fully electric systems – each technology comes with its own strengths and challenges.

Mechanical drive

Mechanical drives are the most traditional form of ship propulsion, where engine power is directly transferred to the propeller through a mechanical gearbox. The engine drives the gearbox via a shaft, which regulates speed and torque to set the propeller in motion.

This type of drive is characterized by a simple design, making it less complex and maintenance-intensive compared to other systems. The direct power transmission provides high efficiency and makes mechanical drives cost-effective to purchase and operate. They are commonly used on small to medium-sized vessels that travel long distances at consistent speeds, where simple technology and high reliability are essential. Examples include fishing vessels, cargo ships, and workboats.

Diesel-electric drive

In diesel-electric drives, diesel engines generate electricity via generators. This electricity powers electric motors, which in turn drive the propellers. This configuration offers high flexibility in power distribution and allows for optimal utilization of the diesel engines.

A key advantage of this system is its adaptability. It enables independent control of speed and torque through the electric motors, resulting in improved maneuverability and easy adjustment of travel speed. Additionally, this drive type is maintenance-friendly as it reduces mechanical stress and wear on the main engines.

Diesel-electric drives are particularly used in larger vessels such as cruise ships, ferries, and offshore supply vessels, where flexibility and precise control are crucial. They are ideal for ships that need to operate in varying load conditions regularly.

Hybrid drive

Hybrid drives combine the advantages of mechanical and electric systems. They typically consist of a diesel engine that can drive the propulsion system both mechanically and electrically via a generator. Often, battery storage is also integrated, enabling highly efficient operation in various operating conditions. This configuration results in significant fuel savings by utilizing battery power during low-load conditions or port operations. Additionally, CO₂ emissions are reduced, particularly in environmentally sensitive areas.

Hybrid drives offer high flexibility, allowing operation with both diesel and electricity, and can adapt to different operational requirements. These systems are increasingly used in cruise ships, ferries, and fishing vessels, where high energy efficiency and environmental protection are priorities, especially in areas requiring emissions-free operations.

Electric Drive

The electric drive relies exclusively on electrical energy, supplied by batteries, fuel cells, or other electrical sources. Electric motors directly drive the propeller, eliminating the need for diesel or combustion engines. A key advantage of electric drives is their zero-emission operation.

As no CO₂ is emitted during operation, they significantly contribute to environmental protection and make it easier to comply with increasingly strict environmental regulations. Additionally, electric drives are remarkably quiet, reducing noise pollution for the crew, passengers, and marine ecosystems.

Electric drives are used in environmentally conscious sectors such as ferries operating in urban and tourist areas, as well as research and specialized vessels, where quiet and emissions-free operation is a major benefit.