Used Vilter 446 6-Cylinder Reciprocating Compressor. Vilter Manufacturing Corp. Milwaukee, WI USA. Model: VMC 440. Refrigerant: AMMO. S/N: 30630 A. Order: E-22878. Size: A12K-446. Test Pressure (PSIG): 525 / 375. This 440 VMC compressor has 6 cylinders with a displacement at max RPM of 232 CFM. Nominal rating (1200 RPM): 85.2 TR / 57 BHP with R-717 Ammonia (+20F/95F), 19.3 TR / 37.8 BHP (-25F/95F). Ajax Electric Motor Corp. Rochester NY, 30 HP, 1175 RPM, 208-230/460 Volt, 86-78/39 amps, TEFC, SF 1.15, 60 Hz, 3-phase, motor made in Brazil. Manual available (PDF). Suction/Discharge: 4 in. / 3 in. Shipping weight (bare/package): 1,900 lbs. / 3,500 lbs. Overall Dimensions: 93 in. L x 43 in. W x 41 in. H.