Robust and user-friendly washing machine for internal cleaning of cubic and cylindrical containers through spraying with solvent Very good internal cleaning by means of a rotating spray head with pencil jet nozzles and 50 bars spraying pressure Depending on the shape of the container, the operator may choose between a spray head rotating around 2 axes and a spray head rotating around the vertical axis and moving up and down. The spray head is lowered into the container, and the upper container opening closed by the machine lid, by means of a pneumatic lifting frame Sensor for the lid pressure; spraying does not begin until the lid rests tightly on the container Washing solvent in separate container; level switch for filling and draining High-pressure reciprocating diaphragm pump as washing pump; separate pump for rinsing; pneumatic diaphragm pump for draining A wedge wire filter protects the high-pressure pump from foreign matter 3 manometric switches for deactivating the high-pressure pump in case of insufficient pressure (e.g. hose break), excessive pressure (narrowing of the pressure line) or insufficient suction pressure (e.g. clogged wedge wire filter) A filter with removable basket protects the evacuation pump and the solvent reservoir Automatic washing program: washing - draining - rinsing -internal air extraction; the program steps can be selected individually Explosion protection according to ATEX, category 1 (with type examination) for zone 0 inside, category 2 for zone 1 outside Accessories Lid versions and adapters for different container openings Outlet cleaning system, manual or automatic Internal air extraction system, optionally with warm air drying for nonvolatile solvents External air extraction system to supplement/replace the air extraction system in the room/at the workplace Solvent concentration measuring and regulating system for connection to an exhaust air cleaning system Model SP70 Like model SP50, but with the following differences: 70 bars spraying pressure Suitable for water-based/alkaline media Heating of the washing agent, heat insulation of the washing agent container Rinsing with water Explosion protection adapted to the washing agent with washed-off residues and to the requirements of the installation site