The new Cat C32B
More robust, more powerful, and even more reliable
More power within the same installation dimensions, lower maintenance costs, and a simpler emissions system. With the introduction of the Cat C32B, Caterpillar takes a clear step forward in the higher power segment for commercial marine applications. The C32B has been developed as the successor to the well-known C32 and is aimed at applications where reliability, maximum uptime, continuous power, and low total cost of ownership are decisive factors. Think of coasters, offshore support vessels, workboats, and various diesel-electric installations.
Further developed, from the inside out
Although the C32B closely resembles its predecessor in terms of dimensions, almost everything beneath the surface has been revised. Caterpillar has thoroughly redesigned the engine block to enable higher power outputs and longer service intervals. The crankshaft has been strengthened, bearings have been made larger, and the engine block itself has been structurally modified to withstand higher loads. The cylinder head and cooling channels have also been optimized.
In addition, the C32B is equipped with the new MEUI-C injection system and an ADEM VI engine control unit. This combination ensures more precise fuel injection, improved combustion, and higher efficiency across the entire load range. The result is an engine that is not only more powerful, but also more predictable and more durable under heavy, continuous loads.
Ultimately, this results in overhaul intervals that are up to 25% longer than those of the previous C32 generation. The core of the C32B is therefore clear: more power and a longer service life within virtually the same footprint. This keeps it a compact solution with a high power density, ready for intensive use.
“The C32B has been rebuilt from the inside out. This is reflected in its improved power density and longer maintenance intervals.”
More efficient and delivering power at lower engine speeds
One of the key improvements of the C32B is its higher power density compared to the previous generation C32. Depending on the application, the engine delivers up to approximately 20 percent more power, while the physical installation dimensions and weight have remained the same.
For genset and auxiliary applications, this means outputs of over 1200 bkW are possible. Ratings for propulsion applications have also been adjusted. Engine speeds have been reduced while maintaining the same output power. This not only results in improved ratings, but also greater comfort on board: less vibration, less noise, and more favorable fuel consumption under typical operating profiles.
In short:
- Lower engine speeds > less vibration and noise
- Improved fuel efficiency
- Highly suitable for workboats, (offshore) support vessels, and tugboats
Airless SCR: a simpler emissions system
Another major step forward is the new fully airless exhaust gas aftertreatment system (SCR). In simple terms, this means that no compressed air compressor is required on board to support the SCR process.
This offers several advantages:
- IMO II / IMO III switchable
- No compressor, air tanks, or dryers required on board for the SCR system (reduced weight)
- Less noise in the engine room
- Simpler installation
The SCR solution is available in U-flow and Z-flow configurations, allowing the system to be flexibly integrated into different vessel designs. The dosing cabinet is also wall-mounted, creating additional floor space in the engine room.
More info?
Whether it concerns a refit or a new build, the Caterpillar C32B fits within the same installation dimensions while delivering additional performance. Please feel free to contact us to discuss availability and the possibilities for your project.
