OceanSphereENGINES

6L H25/33P

Main Engine 4-Stroke · Main Engines (4-Stroke)

Technical data from manufacturer or class sources · not yet verified by a person​​‍‌‌‌​​‌⁠​‌‌‌⁠‍​⁠​‍
6Cylinders
250 mmBore
330 mmStroke
900 rpmMCR RPM

This diesel engine operates on a compact and cost-effective design principle, featuring a 4-stroke cycle with a bore of 250 mm and a stroke of 330 mm. The HiMSEN 6L H25/33P engine is part of the H17/28 engine family and is manufactured by HiMSEN, a division of Hyundai Heavy Industries. It delivers a maximum continuous rating (MCR) of 2880 kW at 900 RPM, complying with IMO Tier II emissions standards. The engine supports multiple fuel types including Marine Diesel Oil (MDO) and Marine Gas Oil (MGO), ensuring versatility in various marine and stationary power generation applications. With a growing market share, the 6L H25/33P is known for its robust performance and reliability. However, common issues such as fuel injection pump sticking, excessive carbon deposits, and turbocharger pressure ratio degradation require regular monitoring and maintenance to ensure optimal operation.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Swept volume per cylinder16.2 dm³
Compression ratio17:1
Max combustion pressure200 bar
SFOC (100% MCR)181.0 g/kWh (diesel operation)
Oil consumption0.6 g/kWh
6H25/33 dry weight20.2 metric tons
7H25/33 dry weight22.5 metric tons
8H25/33 dry weight24.1 metric tons
6H25/33M rated output1,440-1,596 kW (depending on RPM)
7H25/33M rated output1,680-1,995 kW (depending on RPM)
8H25/33M rated output2,320 kW at 900 RPM
9H25/33M rated output2,565 kW at 900/1000 RPM; 2,700 kW max
Mean piston speed range7.9-11.0 m/s
Mean effective pressure22.2-27.2 bar (varies by configuration)
Emissions complianceIMO Tier II, Tier III (with SCR - Selective Catalytic Reduction)
📄
Download datasheet (PDF) (4721 KB)
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