Zichai Marine L6230ZLC-18 Engine
Zichai L6230ZLC-18 is a high-performance 6-cylinder marine diesel engine, featuring a continuous speed of 900 rpm, a cylinder bore of 225 mm and a piston stroke of 290 mm, with a continuous power of 720 kW to deliver strong and stable power output. Its robust structure and sophisticated design are rigorously tested under harsh marine conditions, ensuring reliable and durable operation and effectively improving equipment uptime, which can meet the demanding needs of various marine vessels.
This engine also integrates high efficiency, energy saving and environmental protection. Equipped with advanced four-stroke direct injection, turbocharging and intercooling technologies, it optimizes fuel economy, reducing operating costs and enhancing profitability for users. Meanwhile, it fully complies with the latest domestic and international emission regulations, minimizing harmful emissions and promoting sustainable shipping. With comprehensive advantages, it is an ideal choice for high-performance marine power.
Advantages of Marine Engine L6230ZLC-18
Reliable & Durable: Sturdy structure and reliable operation ensure stable performance and long service life.
Highly Efficient: Advanced technology optimizes energy efficiency and lowers operating costs effectively.
Eco-friendly: Fully compliant with international emission regulations for green and sustainable operation.
Stable Output: Professional design guarantees consistent power performance and high uptime.
Technical Specifications
| Engine Model: | L6230ZLC-18 |
| Type: | In-line, four-stroke, direct-injection, turbocharged, intercooled, irreversible |
| Cylinders: | 6 |
| Cylinder Bore / Piston Stroke: | 225 mm / 290 mm |
| Total Displacement: | 69.18 L |
| Rated Speed: | 900 rpm |
| Rated Power: | 720 kW |
| One hour power: | 792 kW |
| Minimum stable speed: | 360 rpm |
| Dimensions (L×W×H): | 3315×1145×2452 (Reference only) |
| Weight: | <9500 kg |
Engine Model | Rated Power | Rated Speed | One hour power |
| L6230ZLC | 1324 kW | 1000 rpm | 1457 kW |
| L6230ZLC-1 | 1103 kW | 1000 rpm | 1213 kW |
| L6230ZLC-2 | 1000 kW | 1000 rpm | 1100 kW |
| L6230ZLC-3 | 992 kW | 1000 rpm | 1091 kW |
| L6230ZLC-4 | 950 kW | 1000 rpm | 1045 kW |
| L6230ZLC-5 | 882 kW | 1000 rpm | 970 kW |
| L6230ZLC-6 | 809 kW | 1000 rpm | 890 kW |
| L6230ZLC-7 | 926 kW | 1000 rpm | 1019 kW |
| L6230ZLC-8 | 735 kW | 1000 rpm | 809 kW |
| L6230ZLC-9 | 920 kW | 900 rpm | 1012 kW |
| L6230ZLC-10 | 1213 kW | 1000 rpm | 1334 kW |
| L6230ZLC-11 | 882 kW | 900 rpm | 970 kW |
| L6230ZLC-12 | 809 kW | 900 rpm | 890 kW |
| L6230ZLC-13 | 735 kW | 900 rpm | 809 kW |
| L6230ZLC-14 | 662 kW | 900 rpm | 728 kW |
| L6230ZLC-15 | 800 kW | 900 rpm | 880 kW |
| L6230ZLC-16 | 750 kW | 900 rpm | 825 kW |
| L6230ZLC-17 | 588 kW | 900 rpm | 647 kW |
| L6230ZLC-18 | 720 kW | 900 rpm | 792 kW |
| L6230ZLC-19 | 809 kW | 750 rpm | 890 kW |
| L6230ZLC-20 | 735 kW | 750 rpm | 809 kW |
| L6230ZLC-21 | 662 kW | 750 rpm | 728 kW |
| L6230ZLC-22 | 588 kW | 750 rpm | 647 kW |
| L6230ZLC-23 | 735 kW | 720 rpm | 809 kW |
| L6230ZLC-24 | 588 kW | 720 rpm | 647 kW |
| L6230ZLC-25 | 551 kW | 720 rpm | 606 kW |
| L6230ZLC-26 | 662 kW | 720 rpm | 728 kW |
| L6230ZLC-27 | 544 kW | 720 rpm | 598 kW |
| L6230ZLC-28 | 528 kW | 720 rpm | 581 kW |
| L6230ZLC-29 | 610 kW | 720 rpm | 671 kW |
| L6230ZLC-30 | 528 kW | 600 rpm | 581 kW |
| L6230ZLC-31 | 441 kW | 600 rpm | 485 kW |
| L6230ZLC-32 | 400 kW | 600 rpm | 440 kW |
| L6230ZLC-33 | 347 kW | 600 rpm | 411 kW |
| L6230ZLC-34 | 360 kW | 600 rpm | 396 kW |
| ——END—— | |||
| General Information of ZICHAI L6230ZLC-18 Marine Engine | |||
|---|---|---|---|
| Model | L6230ZLC-18 | Type | In-line, four-stroke, direct-injection, turbocharged, intercooled, irreversible |
| Cylinders | 6 | Cylinder Bore | 225 mm |
| Piston Stroke | 290 mm | Total Displacement | 69.18 L |
| Compression ratio | 14 | Rated Speed | 900 rpm |
| Rated Power | 720 kW | One hour power | 792 kW |
| Minimum stable speed | 360 rpm | Mean Piston Speed | 8.70 m/s |
| Mean Effective Pressure | 1.388 MPa | Supercharging pressure | 0.25±0.01 |
| Maximum explosion pressure | ≤13.0 | Exhaust temperature per cylinder | ≤450℃ |
| Exhaust temperature before turbocharger | <550℃ | Fuel Oil Consumption | 190 g/(kW·h) |
| Lub. Oil Consumption | ≤0.8 g/(kW·h) | Rotation | Viewed from the flywheel end: turn right is clockwise; turn left is counterclockwise |
| Firing order | Clockwise:1-3-5-6-4-2, Counterclockwise: 1-2-4-6-5-3 | Starting Method | Compressed air starting motor |
| Starting air pressure | Air bottle pressure: 3.0 MPa; Pressure after reducing valve: 0.8 MPa | Dimensions (L×W×H) | 3315×1145×2452 mm (Reference only) |
| Height of lifting piston | 1785 mm | Weight | <9500 kg |
| ——END—— | |||
ZICHAI L6230ZLC Series Marine Engine Dimensions

Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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