Get current pricing for Frick Screw Ammonia Compr, RXB-50 100 tons Frick Rotary Screw Ammonia Compressor, Rxb-50, Model Xjs120s1760d. Uses R717 Refrigerant. Capacity 100 Tons Of Refrigeration. Motor 125 Hp. Built 1990 . Product Category: Process Equipment, Sub Category: Process Miscellaneous: