Coriolis Offers a line of Cylindrical as well as Flat Generators.
Flat Generators -
Coreless winding results in very low inductance values, and subsequently low impedance-losses, and high efficiency.
The characteristic low impedance, is significantly lower than comparable, traditional cylindrical generators.
Resulting in low sensitivity to loads. Meaning the voltage drop under current consumption is much lower, therefore requiring minimal velocity changes for output voltage stabilization.
High voltage flat generators up to 13 KW 750V.
Cylindrical Generator Sets –
Electrical machine experience up to 12 KW. 
Please contact us for more details.