Pumps and motors for marine applications

Advice on marine pumps and motors

At Hans Buch Marine & Offshore, we help you find the right pump or motor solution for your marine application. Whether you are working on a new installation, replacement or retrofit, we provide advice based on your specific requirements for operation, environment, installation and energy efficiency.

We offer pumps from Herborner and electric motors from Rotor, developed for demanding marine conditions. These solutions are suitable for ballast, cooling, water handling and other systems on board where stable operation and a long service life are essential.

With our technical expertise, we help assess which solution best suits your vessel and your existing setup. We consider capacity, material selection, protection rating, power consumption, maintenance and integration options to ensure you get a solution that operates reliably in practice.

If you need to modernise existing systems, we can advise on retrofitting with Herborner pumps, which can be integrated with minimal downtime and improve both performance and energy efficiency.

For marine and offshore applications, Rotor offers a wide range of electric motors, including marine duty motors, brake motors and submersible motors. The motors can be adapted to meet requirements for coating, IP rating, enclosure and operating environment.

Contact Hans Buch Marine & Offshore for advice on pumps and motors that meet your technical requirements and ensure stable operation at sea.

Pumps for retrofitting

The best of servo and stepper technology

Achieve impressive precision, accurate positioning and high performance by combining the precision of stepper technology with the torque and dynamic response of servo technology. Read more and download the datasheet further down the page.

First-class motors for marine applications from Rotor

When you choose an electric marine motor from Rotor’s NL® product range, you get a precision-engineered solution designed to perform optimally in even the most demanding marine environments. The motors are developed for marine applications and built for long-term reliability, withstanding corrosion, saltwater exposure and extreme conditions.

With high power output and low energy consumption, the marine motors can be adapted to your vessel’s specific requirements – from yachts to commercial ships – providing solutions for a variety of marine needs.

Rotor’s NL® series of marine motors is equipped with a stainless steel nameplate, ensuring you can always identify the rated data and Rotor’s NL® marine classification marking.

Find the Rotor motor for your specific application and needs

Our range of electric motors from Rotor is tailored to marine and offshore applications, ensuring a solution that can perform in harsh conditions at sea. The motors can be supplied with special coating systems and IP-rated designs with enclosures such as IC410, IC411 or IP23.

Marine duty motor

kW: 0.18–2500
IEC frame size: 63–355
Protection rating: IP23–IP66
Insulation class: F

Brake motor

IEC frame size: 80–400
Brake: Stromag or equivalent
Encoder: Hübner
Protection rating: IP56 for motors, IP67 for brakes

IP68 submersible motor

kN: up to 13,000
Poles: 6–14
IEC frame size: 400–560
Voltage: up to 1000 V
Frequency: 50/60 Hz
Protection rating: IP55
Cooling system: oil-/air-filled underwater solution
Insulation class: F
Suitable for VFD operation
Multiple mounting options, including a raised-foot design
Welded steel constructions in accordance with IEC 60034

Open drip proof IP23

kW: 15–2500
IEC frame size: 160–630
Cooling system: IC01
Insulation class: F