12M55 Series Marine Diesel Engines (1361-2356kW)
High-speed engine products including WP4.1,WP4,WP6,WP7,WD10,WD12,WP10, WP12,WP13,M26,M33, which are mainly used as the main engine and auxiliary engine of the high-speed ships and boats, passenger ship, and fishing boat and inland river transport ship; WHM6160/170 medium speed engine products, which are mainly used as the main engine, electric propeller and auxiliary engine of the bulk cargo carrier, car/passenger ferry, public service ship, offshore support vessel, ocean fishing vessel, engineering ship, multi-purpose ship; CW200/CW250/WH620/WH20/WH25/WH28 medium speed engine products, which are mainly used as the main engine, and auxiliary engine of the engineering ship, passenger ship, fishing boat, and bulk cargo carrier; and MAN series L21/31, L23/30A, L27/38, L32/40 and V32/40 products, which are mainly used as the main engine, electric propeller and auxiliary engine of the bulk cargo carrier, engineering ship, multi-purpose ship, and marine traffic management ship.
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Product Parameters
| Model | Four-stroke, water-cooled, V-type, supercharged and intercooled | Number of cylinders | 12 |
| Bore/stroke | 180×215（mm） | Displacement | 65.65L |
| Startup method | Electric start | Oil consumption rate | ≤0.8 g/kW·h |
| noise | ≤111dB(A) | Idle | 650r/min |
| Crankshaft rotation direction (facing the flywheel end) |
Counterclockwise | net weight | 9500kg |
| Length × Width × Height | 2927×1565×2637（mm） | ||
Note: Product parameters and models are for reference only. Please contact relevant personnel to obtain official information on delivery time and fishing vessel models.
Product spectrum
| series | model | Air intake method | Rated power kW/Ps |
Rated speed r/min | Oil supply method | Emission levels | Power classification |
| 12M55* | 12M55C1850-16E210 | Supercharged intercooler | 1361/1850 | 1600 | Electronically controlled common rail | IMOⅡ/China II | P1 |
| 12M55C2030-16E210 | Supercharged intercooler | 1493/2030 | 1600 | Electronically controlled common rail | IMOⅡ/China II | P1 | |
| 12M55C2250-16E210 | Supercharged intercooler | 1654/2250 | 1600 | Electronically controlled common rail | IMOⅡ/China II | P1 | |
| 12M55C2450-16E210 | Supercharged intercooler | 1801/2450 | 1600 | Electronically controlled common rail | IMOⅡ/China II | P1 | |
| 12M55C2535-16E210 | Supercharged intercooler | 1864/2535 | 1600 | Electronically controlled common rail | IMOⅡ/China II | P2 | |
| 12M55C2250-18E211 | Supercharged intercooler | 1654/2250 | 1800 | Electronically controlled common rail | IMOⅡ/China II | P1 | |
| 12M55C2450-18E211 | Supercharged intercooler | 1801/2450 | 1800 | Electronically controlled common rail | IMOⅡ/China II | P1 | |
| 12M55C2600-18E211 | Supercharged intercooler | 1912/2600 | 1800 | Electronically controlled common rail | IMOⅡ/China II | P1 | |
| 12M55C2738-18E211 | Supercharged intercooler | 2013/2738 | 1800 | Electronically controlled common rail | IMOⅡ/China II | P1 | |
| 12M55C3000-18E211 | Supercharged intercooler | 2205/3000 | 1800 | Electronically controlled common rail | IMOⅡ/China II | P2 | |
| 12M55C3200-18E211 | Supercharged intercooler | 2352/3200 | 1800 | Electronically controlled common rail | IMOⅡ/China II | P3 | |
| 12M55C3450-18E211 | Supercharged intercooler | 2536/3450 | 1800 | Electronically controlled common rail | IMOⅡ/China II | P3 |
Note: The delivery date of products marked with * is subject to the manufacturer’s reply. Product parameters and model spectrum are for reference only. Please contact relevant personnel to obtain official information on delivery time and fishing vessel model spectrum, etc.
12M55 Series Marine Diesel Engine
- Torque Rise 18%
- Minimum fuel consumption 190g/kW·h
- Overhaul period 20000h
- Emissions meet IMO II/China II
Product Advantages
Safe and reliable
- High-strength design of engine body, piston, bearing and other structural parts ensures the reliability of diesel engine under high explosion pressure
- Utilizing Weichai’s global excellent supplier system, the quality of parts is reliable
- Withstand rigorous bench and three-high test verification to ensure the reliability of key components, and the overhaul period of the whole machine is more than 20,000 hours
- Cooling and lubrication systems are equipped with emergency interfaces
- Complete self-diagnosis system, complete failure protection mode, safe control strategy
Powerful
- Precise control of the electronic control unit, high injection pressure, small speed fluctuation, strong power
- Low-speed high-torque design, torque reserve of 18%, quick response and fast acceleration
- 50% rated speed can reach 115% rated torque
Economical and fuel-efficient
- Optimize the injection pattern, accurately control the injection pressure, injection amount and injection time, fully atomize the fuel, wide range of economic fuel consumption, and the minimum fuel consumption rate of 190g/kW·h
Comfortable and environmentally friendly
- It can realize multiple injections such as pre-injection and post-injection, and the noise and vibration are reduced by 20% compared with the mechanical pump system.
- Water-jacketed exhaust pipe and water-jacketed exhaust tail pipe to reduce cabin temperature
- Emissions meet IMO TierⅡ and China Phase II regulations
Strong practicality
- Optional configurations include LCD Internet instrument, vibration isolation pad, hand pressure oil pump, etc. to meet different customer needs
- The whole machine is modularly designed with compact structure, which is convenient for cabin layout.
- The machine body has an observation hole on the side, which is convenient for maintenance and the whole machine is beautiful and compact.
- Adjust different control strategies according to different performance requirements
- Receive/output a variety of control signals to meet automation control requirements
12M55 Series Marine Diesel Eng...
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