NIIGATA DIESEL

HX Series Medium Speed Diesel Engine

Large number of engine successfully operating

The long seller HX series have been leading Japan’s medium speed diesel engines in marine industries and so many engines proudly operated and supported by wide range of customers.

The engine structure is very much simplified due to Intake air chamber, LO main pipes and CW main pipes are incorporated in the hanger type cylinder block and air cooler directly attached to the side of cylinder block. The compact design enables it to have low noise and vibration and to reduce number of components as well as easy and reasonable maintenance.

＊Engine model with a charge air cooler located at the side of cylinder block：19HX, 22HX, 25HX, 26HLX, 28HX, 34HX

Specificastions

Model Max.Continuous Rating Engine Speed Cyl. Bore Piston Stroke Approx.
Dry Mass
kWm PS min-1 mm mm t
6MG19HX 761 1035 1000 190 260 7.0
6MG22HX 1062 1445 1000 220 280 9.1
6MG25HX 1368 1860 750 250 350 13.0
6MG26HLX 1518 2065 750 260 350 13.5
6MG28HX 1897 2580 750 280 370 16.0
8MG28HX 2427 3300 750 280 370 21.5
6MG34HX 3033 4125 620 340 450 33.6
8MG34HX 3640 4950 600 340 450 43.5
6MG41HX 4552 6190 520 410 560 64.0



＊Charge air cooler located at the side of cylinder block
 

※Maximum Continuous Rating shows the figure at crankshaft end and as per one engine power.
※Maximum Continuous Rating is applied for Marine Diesel Oil(A oil,ISO8217)or Gas Oil.
※Due to continuous development,some date may change.
※Consult your Niigata representative for further detail.
 
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