... 250kw,250-400hp)1.Ingersoll rand air compressor 2.Best prices Ingersoll rand stationary air compressor(200-250kw,250-400hp) ... few moving parts, the SSR/M can maintain plant air pressure without constant maintenance.Higher Ambient RatingThe SSR/M ... with minimal maintenance.Ultra CoolantDesigned specifically for rotary screw air compressors, Ultra Coolant minimizes maintenance costs by maximizing the ...