\ Article 50327 50394 50527 50594 Compression ratio 3: 1 3: 1 5: 1 5: 1 Air inlet connection G 1/4" G 1/4" G 1/4" G 1/4" Grease delivery connection G 1/2" G 1/2"G 1/2"G 1/2" Working pressure 4~8 bar 4~8 bar 4~8 bar 4~8 bar Noise-level 81 dB 81 dB 81 dB 81 dB Air consumption 260 lt/min 260 lt/min 260 lt/min 260 lt/min Capacity (free outlet at 6 bar self-levelling grease 20�° C16 L/min16 L/min 18 L/min18 L/min Length suction tube 270 mm940 mm 270 mm 940 mm Diameter suction tube 42 mm 42 mm 42 mm 42 mm Suitable for drums 200L200L (N/G) Weight(N/G) 7.8/8.8Kg12/14Kg 7.8/8.8Kg12/14Kg