SUCTION MACHINE Marshal ( Trolley Type ) Complete ergonomically designed, hand-switch and (Foot-switch optional) for easy operations.Select negative pressure at will with no level for pressure adjustment.Equipped with safety valve and overflow protection mechanism, oil free motor.Safe and reliable, without pollution of oil. Very low noise.Keep away from inflammable environmentMax continuous working time is 30 minutes SPECIFICATIONS:Max Vacuum: >=600 mm HgMax airflow : 20/minAdjustable vacuum : 100 mm Hg ~ Max vacuumSound Level : 65dB(A)Suction bottle (Polly Carbonate): 2500ml/bottle, 2 Nos.Power Supply : AC230V ±10% 50HzInput power : 180VADimension 430 x 345 x510 (mm)Weight (Net) : 12.3 KG