C Series Diesel Engines

C6121 diesel engine is a product that incorporates the 3300 series diesel engine technology from U.S. Caterpillar and has been produced for 20 years with license. The company has also introduced the main parts processing equipment and product experimental facilities from Caterpillar. With the advanced U.S. technologies and special attention to the reliability of parts during design and manufacture, C6121 diesel engine is well-known for its high quality and high reliability, and has become the recognized supreme power for engineering machineries. In 2006, SDEC cooperated with the famous German diesel engine design company FEV to design and develop the original C121 diesel engine to upgrade its performance and emission. The upgraded SC11CB (C6121) diesel engine conforms to the EU Directive EEC97/68 and reaches the non-road Stage III Level A standard.

Diesel Engine SC11CB(C6121)

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SC11CB(C6121) Product Features High Reliability
The consummate design of parts and the whole unit implements the idea of high reliability, long service life, common life for key parts and the whole unit, and highly reliable and endurable rubbing pairs. As indicated by statistical data about actual application, the average failure period of loaders and bulldozers is above 4,000 hours and their overhaul period is greater than 10,000 hours.

Broad Overseas Market
The global sales amount of SC11CB (C6121) series engine is more than 1 million. It has large number of loyal users abroad. In recent years many exported loaders and bulldozers from China have been equipped with this engine. This engine has a very vast prospect in the overseas market.

Emission-Related Technology Upgrade

Reaching Euro II emission with the State certification; meeting Tier1 and Trier2 emission requirements, with the TUV certification.

Performance Upgrade
It further reduces fuel consumption by 5~10%.

Configuration Upgrade
The parts are 100% metricated. Compared with the C6121 engine, the upgraded SC11CB engine maintains the consistent overall installation dimensions and the consistent interchangeable peripheral quick-wearing parts, and may be metricated by screws, easy for user to use pumps and nozzles with large quantity and large area. Its spare parts and accessories can be found anywhere and its air passage on the cylinder cover, camshaft molded lines and combustor have all been improved.

Technical Parameters Power Range: 184~320 PS
Model Unit EURO Ⅱ
SC11
CB
184G
2B1		 SC11
CB
195G
2B1		 SC11
CB
210G
2B1		 SC11
CB
220G
2B1		 SC11
CB
240.1G
2B1		 SC11
CB
250G
2B1		 SC11
CB
270G
2		 SC11
CB
290G
2		 SC11
CB
305G
2		 SC11
CB
320.1G
2
Engine Type
Direct Injection, Straight-Line, Water-Cooling Cylinder Liner, Six-In-Line, Four-Stroke
Intake Mode
Charging Charge Inter-Cooling
Cylinder Bore ×Stroke mm×mm 120.65×152.4
Total Displacement L 10.45
Compression Ratio
16.5:1
Standard Power/Rated Rotate Speed kW/r/min 135/
1850		 143/
2200		 155/
2200		 162/
2200		 175/
2200		 187/
2200		 200/
2200		 213/
2200		 224/
2200		 235/
2100
Fuel Consumption at Standard Working Condition g/kW.H ≤220
Max. Torque/Rotate Speed N.m/r/min 843/
1300		 748/
1400		 807/
1400		 844/
1400		 950/
1400		 969/
1400		 1050/
1500		 1250/
1400		 1192/
1400		 1390/
1400
Noise db(A) ≤99
Overall Dimensions mm 1394 (Length) × 828 (Width) × 1521 (Height) 1422( L )×935( W )×1618( H )
Weight kg 960
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