Chinese Marine Propulsion

Green fuel/shipping engine report from CSSC


LNG fuel

In 2024, it delivery world's first twin-engine, twin-propeller main engine, the 6X72DF-2.2+iCER, and the company's largest bore dual-fuel low-speed engine, the 9X92DF-2.0+iCER, were delivered; in 2025, the first 5X72DF-2.1+iCER LNG dual-fuel low-speed engine was added, continuing to lead the way in clean energy power!

Methanol
In May 2024, the first domestically produced 6G50ME-C9.6-LGIM+EGRBP methanol dual-fuel low-speed engine was successfully delivered, achieving a historic leap from "0 to 1"! The world's first 7S60MEC-LGIM-EGRBP methanol dual-fuel main engine and the world's first methanol dual-fuel intelligent VLCC marine main engine were delivered in succession,


more on how marine engines are built at CSSC

It has > 30 test rigs, more than 60% are equipped for testing green energy fuel types like LNG, methanol & ammonia.
Has an advanced digital casting center with annual production capacity of 50000 ton and a maximum single piece weight of 50t. Equipped with intelligent production line such a RGV automatic transfer and electric furnace automatic batching. Focused on casting critical components such as cylinder blocks and liner.

Has over 180 large CNC gantry milling machines and floor type boring and milling centers + 100 welding robots and precision testing instruments.

There is a huge opportunity for domestic substitution in the marine propulsion sector. China is the largest shipbuilder however it still relies quite a bit on engine imports, and foreign companies for engine manufacturing.

Chinese orders amount to around 45-55% of the orders at Korean engine makers like Hanwha and Hyundai.

Not just engines, subcomponents as well.

jli88 said:

There is a huge opportunity for domestic substitution in the marine propulsion sector. China is the largest shipbuilder however it still relies quite a bit on engine imports, and foreign companies for engine manufacturing.

Chinese orders amount to around 45-55% of the orders at Korean engine makers like Hanwha and Hyundai.

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Not just engines, subcomponents as well.

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slightly misleading article from Korean Media.. let me correct

they didn't mention, HD Hyundai Marine Engine produced Wärtsilä engines under a license agreement, and also had a joint venture with Wärtsilä.. this Finish company is the global leader in Marine Engines. so China basically does import some of its Engines from this company through Korean companies.
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CSSC itself one of the largest manufacturer of Marine Engines in all categories through their Switzerland based subsidiary WinGD which they bought in 2016.. another fun fact, Korean LNG ships using Chinese made Marine engines through WinGD obviously but those Engine produced in Shanghai/Qingdao.

CSSC ranks second globally in the international market share of low-speed engines.

China's global market share of marine low-speed diesel engines is 40%, and the global market share of dual-fuel low-speed diesel engines has reached 70%. China aim to increase market share of large dual-fuel low-speed diesel engines will be 99%. (dual fuel allows switching to natural gas as fuel).

despite all these achievements, CSSC still import Engines.. but they are relatively self-sufficient in many categories.

here are some of examples, they have build world leading Engines.. there are too many models but i just post some of very important one.

1. CSSC has developed world's most power iCER dual fuel engine 12X92DF-2.0.

2. CSSC debuts the WinGD X92DF-M-1.0, the world's most powerful dual-fuel (diesel or methanol) marine engine.

by78 said:

China debuts the WinGD X92DF-M-1.0, the world's most powerful dual-fuel (diesel or methanol) marine engine.

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3.Shaanxi diesel developed SXD6L40/52G medium speed high power gas engine with largest cylinder diameter and largest single cylinder power.

tphuang said:

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Shaanxi diesel developed SXD6L40/52G medium speed high power gas engine with largest cylinder diameter and largest single cylinder power. Filing gap in domestic medium speed high power natural gas engine.

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4. The 9X92DF-2.0+iCER large-bore LNG dual-fuel marine low-speed engine, built by CSSC Engine, a subsidiary of China State Shipbuilding Corporation (CSSC), was successfully delivered in Qingdao

tphuang said:

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They are getting good at large low speed engines.

CSSC engine delivered large-bore LNG dual-fuel ship low speed engine for a 16000 TEU ship currently under construction at GSI. Uses intelligent control exhaust gas recirculation tech.

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jli88 said:

There is a huge opportunity for domestic substitution in the marine propulsion sector. China is the largest shipbuilder however it still relies quite a bit on engine imports, and foreign companies for engine manufacturing.

Chinese orders amount to around 45-55% of the orders at Korean engine makers like Hanwha and Hyundai.

Please, Log in or Register to view URLs content!

Not just engines, subcomponents as well.

Please, Log in or Register to view URLs content!

Click to expand...

keep in mind that everything takes time to ramp up. For example, China is now basically the sole producer for LNG carrier engines Shocking, right?

If you look at the new engines they've developed recently, it's across the full dual fuel product line. And once they ramp up the production, this won't be an issue.

They have a new test platform for 520mm low speed ammonia dual fuel engine. They are really going for this green dual fuel development