Generators

I ask your offer for a diesel engine powered generator as the following :
-operated on train under dumping conditions
u=400/230 volt 50 hz 3 phase + n
p min: 47 kva/ 40 kw
including dimensions:
length:max 1600 mm
width:max 860 mm
height: max 1200 mm
working temperature: - 25 c +40 c
engine emission stage: iii b