... , 35, 43, 59, 71, 87 input speed : 1500rpm, 1000rpmsingle stage power 0.37kw, 0.25kw,0.75kw,0.55kw, 1.1kw ... , 11kw, 15kw, 18.5kw, 22kw, 37kw, 45kw, 55kw, 30kw, 75kw double stage ratio: 121, 187, 289, 391, 473, 595, 731, 841 ... , 1225, 1505, 1849, 2065, 2537, 3481, 4189, 5133, 7569.double stage power: 0.25kw, 0.37kw, 0.55kw, 0.75kw, 1.1kw ...