G Series Marine Engine

Product Features:

The G series marine engine is a fourth-generation product which features a modular design on the basis of 3128 Xinlong marine engine designed by SDEC together with AVL. Most parts are shared with the previous generation product. The stroke of the high power SC15G engine is extended to 165mm, providing high reliability, high torque and good efficiency.

This series marine diesel engine has earned good reputation among users due to its high reliability, high torque at low speed, long maintenance interval and low use cost, etc. And it is praised as the perfect combination of power and efficiency. It is widely applicable to various inland transport ships, fishing boats, towboats, working ships and other boats, as well as marine generator sets of 120-300KW.

Get Custom Quote

Download brochure

Details

G128/SC15G Series Technical Parameters
Type	In-Line、WaterCooled、4-Stroke、Wet cylinder	Cylinder No.	6
Bore&stroke	G128:135x150mm / SC15G:135x165mm	Displacement	G128:12.88L / SC15G:14.16L
Min.BSFC	195g/kW.h	Oil Consumption	0.4g/kW.h
Valve No/Cylinder	2	Idle speed	675±25r/min
Ignition order	1-5-3-6-2-4	Compression ratio	15.5:1
Noise	≤108dB(A)	Emmision standard	IMOⅡ/Stage I
Start mode	Electric	Flywheel & housing	135 / SAE 1 14
Rotation Direction (Face the Flywheel)	Anti-clockwise	Overhaul	≥15000h

G Series Model List
Series	Engine Model	Aspiration	Rated Power kw/ps	Rated Speed r/min	Fuel Supply	Net Weight kg
Main engine	G128ZCa	Turbo	155.5/211	1500	Mechanical	1315
	G128ZCa1	Turbo	155.5/211	1800	Mechanical	1315
	G128ZLCa	Turbo & Intercooler	180/245	1500	Mechanical	1350
	G128ZLCa3	Turbo & Intercooler	180/245	1800	Mechanical	1350
	G128ZLCa1	Turbo & Intercooler	193/262	1500	Mechanical	1350
	G128ZLCa21	Turbo & Intercooler	193/262	1800	Mechanical	1350
	G128ZLCa2	Turbo & Intercooler	227/309	1500	Mechanical	1350
	G128ZLCa12	Turbo & Intercooler	227/309	1800	Mechanical	1350
	G128ZLCa5	Turbo & Intercooler	254.9/347	1500	Mechanical	1350
	G128ZLCa15	Turbo & Intercooler	254.9/347	1800	Mechanical	1350
	SC15G400CA2	Turbo & Intercooler	254.9/347	1500	Mechanical	1350
	SC15G420CA2	Turbo & Intercooler	272/370	1500	Mechanical	1350
	SC15G420.1CA2	Turbo & Intercooler	272/370	1800	Mechanical	1350
	SC15G430CA2	Turbo & Intercooler	279/380	1500	Mechanical	1350
	SC15G460CA2	Turbo & Intercooler	300/408	1500	Mechanical	1350
	SC15G460.1CA2	Turbo & Intercooler	300/408	1800	Mechanical	1350
	SC15G500CA2	Turbo & Intercooler	320/435	1500	Mechanical	1350
	SC15G500.1CA2	Turbo & Intercooler	320/435	1800	Mechanical	1350
	SC15G460.15CA1	Turbo & Intercooler	333/453	1500	EUP	1350
	SC15G500.18CA1	Turbo & Intercooler	361/491	1800	EUP	1350
Auxiliary engine	G128ZCaf1	Turbo & Intercooler	162	1500	Mechanical	1315
	G128ZLCaf	Turbo & Intercooler	180	1500	Mechanical	1350
	G128ZLCaf1	Turbo & Intercooler	198.5	1500	Mechanical	1350
	G128ZLCaf2	Turbo & Intercooler	240	1500	Mechanical	1350
	G128ZLCaf3	Turbo & Intercooler	276	1500	Mechanical	1350
	SC15G500CF2	Turbo & Intercooler	320	1500	Mechanical	1350
	SC15G460.15CF1	Turbo & Intercooler	333	1500	EUP	1350
Emergency engine	G128ZLD	Turbo & Intercooler	180	1500	Mechanical	1350

Note

Flywheel house and flywheel are SAE1# and SAE14#.
There are single-layer and two-layer high pressure oil pipes optional.

Features

Through FEA modal analysis and coupling strength calculation, we improved designs like body strengthening and the installation of an integral cylinder head.
15G adopts integral non-quenched and tempered steel crankshaft to make the fatigue resistance and service life of the engine improved by 30%.
The combustion system is optimized. After CFD analysis, the large flow cooling pump and oil pump and new type high-efficiency pressurizer are adopted to have a minimum fuel consumption of 198g/kW.h and a maximum torque of 2300N.m. This realizes the requirements for marine engine of low oil consumption and good acceleration property.
After improved designs like flange fuel injection pump drive, added new type oil-gas separation device, optimized thermostat and fuel pipeline, integral heat exchanger and expansion bank and new type sealing gasket, the product quality of this G series product is improved and the visual layout is also more reasonable.
This G series engine adopts cracking connecting rod and core-pulling water-air intercooler. The spare parts universality with previous generation product is high, reducing operation cost with convenient maintenance.