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| SC13G/SC15G Model | SC25G/SC27G Model |
Description:
The SC13G/15G industrial diesel engine for commercial generators is a product featuring upgraded components on our G128 generator set engines. The SC25/27G industrial diesel engine for commercial generators is a product featuring upgraded components on our 12V135 diesel engine for generator sets. The upgrades have resulted in improved reliability, durability, efficiency, vibration, and noise output. The stroke of the SC15G has been extended to 165mm. Most components of this series of engine can be used with the original engine models. It is the first choice for matching the power for 187-330kW generator sets and it is manufactured according to SAIC Motor manufacturing standards.
Features（13G/15G)：
1.The integral crankshaft is made of non-quenched and tempered steel, all the sealing gaskets are improved, and the injection pump features a direct connection by gear without a transmission shaft, thus improving the reliability.
2.The pump flow is increased and the pipeline design is optimized to reduce system resistance.
3.The flow of the engine oil pump and oil pressure are increased to improve the lubrication of internal components.
4.An oil-gas separator was added to the design and the thermostat is redesigned to be used in areas with different ambient temperatures.
5.Redesigning the fuel pipeline resulted in improving layouts of other peripheral pipelines and air filters. With this protection design, the layout is reasonable and the appearance is more industrial.
6.A cracking connecting rod makes it convenient to maintain.
7.This series engine satisfies Off-Road China II emission standards.
Features(25G/27G)：
1.The integral crankshaft adopts non-quenched and tempered steel and all the sealing gaskets are improved so as to increase the reliability of the diesel engine.
2.The symmetric designs of dual pumps and dual oil pumps improve the cooling and lubricating capacities and reduce the water tank size. It is applicable to various environments with different ambient temperatures.
3.The exhaust pipe is changed into a two-stage assembly and the sealing structure is optimized, which reduces leakage probability. The air inlet pipe is changed as casting structure.
4.Redesigning the fuel pipeline resulted in improving layouts of other peripheral pipelines and air filters. With this protection design, the layout is reasonable and the appearance is more industrial.
5.A cracking connecting rod makes it convenient to maintain.
6.This series engine satisfies Off-Road China II emission standards.
| SC13G/SC15G Series Technical Parameters | |||
| Type | In-Line、WaterCooled、4-Stroke | Cylinder No. | 6 |
| Bore&Stroke | SC13G：135x150mm SC15G：135x165mm | Displacement | SC13G：12.8L SC15G：14.2L |
| Min.BSFC | 205g/kw.h | Noise | 110DB(A) |
| Oil Capacity | 33-41L | Coolant Capacity | 25.5L |
| Speed Control Mode | Electronic Control(Mechanical) | Smoke | ≤1 Rb |
| Compression Ratio | 15.75:1 | Flywheel/Housing | SAE 1# 14# |
| SC25G/SC27G Series Technical Parameters | |||
| Type | V-shaped、WaterCooled、4-Stroke | Cylinder No. | 12 |
| Bore&Stroke | SC25G：135x150mm SC27G：135x155mm | Displacement | SC25G：25.8L SC27G：26.6L |
| Min.BSFC | 205g/kw.h | Noise | 115DB(A) |
| Oil Capacity | 55-65L | Cooling System Capacity | 48L |
| Speed Control Mode | Electronic Speed Control (Mechanical or HPCR) | Smoke | ≤1 Rb |
| Compression Ratio | 16:1 | Flywheel/Housing | SAE 0# 18# |
| G Series Model List | |||||||
| Emissions Standard：Stage II | |||||||
| Series | Engine Model | Aspiration | Rated Power kW | Rated Speed r/min | Standby Power kw | Net Weight kg | Dimensions mm(LxWxH) |
| SC13G | SC13G420D2 | Turbo & Intercooler | 280 | 1500 | 308 | 1296 | 1704x1063x1540 |
| SC15G | SC15G500D2 | Turbo & Intercooler | 330 | 1500 | 373 | 1296 | 1704x1063x1540 |
| SC25G | SC25G610D2 | Turbo & Intercooler | 405 | 1500 | 445 | 2080 | 1930x1686x1872 |
| SC25G690D2 | Turbo & Intercooler | 459 | 1500 | 505 | 2080 | 1930x1686x1872 | |
| SC27G | SC27G755D2 | Turbo & Intercooler | 505 | 1500 | 560 | 2080 | 1930x1686x1872 |
| SC27G830D2 | Turbo & Intercooler | 561 | 1500 | 610 | 2080 | 1930x1686x1872 | |
| SC27G900D2 | Turbo & Intercooler | 602 | 1500 | 662 | 2080 | 1930x1686x1872 | |
| Emissions Standard：Stage III | |||||||
| Series | Engine Model | Aspiration | Rated Power kW | Rated Speed r/min | Standby Power kw | Net Weight kg | Dimensions mm (LxWxH) |
| SC27G(HPCR) | 12GTAA27-G34 | Turbo & Intercooler | 459 | 1500 | 505 | 2080 | 1930x1686x1872 |
| 12GTAA27-G33 | Turbo & Intercooler | 505 | 1500 | 555 | 2080 | 1930x1686x1872 | |
| 12GTAA27-G32 | Turbo & Intercooler | 565 | 1500 | 565 | 2080 | 1930x1686x1872 | |
| 12GTAA27-G31 | Turbo & Intercooler | 622 | 1500 | 622 | 2080 | 1930x1686x1872 | |
G Series Dimensions
SC13G/SC15G L：1704mm W：1063mm H：1540mm
SC25G/SC27G L：1930mm W：1686mm H：1872mm
