Marine Engines

Reliable and fuel-efficient marine engines designed for dependable performance in demanding marine applications. Built for durability, low noise, and smooth operation, they are ideal for propulsion and marine generator sets.

Marine Engines

PPS-30R

Description

RAYWIN 3M1800/N marine diesel engine, 3-cylinder in-line, four-stroke direct injection design. Rated prime power reaches 25kW @3000rpm, The 3M18 series engine power category 21kW ≤ P ≤ 25kW. Equipped with Inline Pump fuel system, it delivers low fuel consumption, featuring high reliability and low operating cost. Compact and lightweight structure meets CE standards with long maintenance intervals. Same-side service layout simplifies maintenance.

Available options: dual belts, belt guards, 24V voltage system, exhaust-water mixer. Safe, robust and fuel-efficient, it serves as main propulsion power for fishing boats, cargo boats, yachts, traffic boats and working boats.

  • It adopts mature design concept and reliable performance, available with CCS certification upon request.
  • Engine power covers 21~25kW, rated power 25kW at 3000rpm.
  • Fuel filter and oil filter are arranged on the same side for easy disassembly and maintenance.
  • Tunnel-type cylinder block and independent bearing supports reduce vibration and improve structural strength for longer service life and higher reliability.
  • Multiple optional configurations are available to meet diverse application requirements.
  • Rich optional parts: 24V starting system, two cooling types, belt shield, double V-belts, vibration damper, integrated water-cooled exhaust pipe.

  • Compatible with 3M1800/N high-speed main engine, model MA125A features a reduction ratio of 2.46:1, rated input speed 1500-3000 r/min and rated transmission capacity up to 0.020kW/(r·min⁻¹). The unit fully complies with industry standard CB/T 3003-2011 for marine medium-speed diesel engine gearboxes, certified by CCS (China Classification Society). Certifications from international classification societies including LR, BV, DNV-GL are available upon request.
  • Constructed with thick cast iron housing and high-precision quenched helical gears, it achieves transmission efficiency exceeding 96%. Hydraulic clutch ensures smooth shifting with low noise and low vibration, and multi-angle installation is supported. Ideal for small fishing vessels, traffic boats and other craft. Modular design enables easy disassembly and maintenance, delivering reliable long-term operation and superior fuel efficiency.

Product Data Sheet