Rawa

Waschanlagen > Anlagen für den Rotationsdruck

auto Cleaning system "Carousel-RAWA" for 6 anilox rollers:

Washing system for 6 anilox rollers, horizontal assignment and drive for rotation of the rollers (compressed air drive)
Occupancy 3 next to each other and 2 in a row
Program selector switch for assignment with 2/4/6 rollers
System with 3 functions: pre-cleaning with two-water cleaning agent in circuit with heated buffer tank (max. 40°C)
High-pressure cleaning with hot water (max. 85°C) in circuit with insulated, heated buffer tank
both buffer tanks with screw-in heater and thermostat control (from 10-85°C)
Pre-cleaning with fixed nozzle assembly equipped with flat jet nozzles over the entire width of the anilox rollers
Movable high-pressure and blow-out nozzle stick from right to left
High-pressure pump with frequency converter for individual adjustment of the pressure
cover with pneumatic lifting cylinders and foot switch actuation
pneumatic 3-way valve at the outlet (wash tank/high-pressure water tank)
high-pressure tank with automatic Filling device (float switch)
3 programs can be selected: for assignment with 2, 4 or 6 rollers
Siemens PLC control
required connections: electr. Connection 400V/32A, compressed air connection, fresh water connection, waste water connection
Program Sequence:

Open lid with foot switch
Equip the system with rollers (position by position)
Close the lid with the foot switch
Press start button
The drive for the rotation of the rollers starts
The wash pump conveys the cleaner from the buffer tank to the spray arm and cleans the rollers for an adjustable period of time, the cleaner flows back into the buffer tank
After the set cleaning time, the draining time begins
After the adjustable draining time, the 3-way valve switches (washing tank/high-pressure water tank), the high-pressure pump conveys the hot water from the buffer tank to the mobile high-pressure nozzle assembly and cleans the rollers (first position 1, then 2, then 3 > depending on the program selection). The water flows back into the buffer tank*
After the high-pressure cleaning, the roller is blown off with compressed air via the mobile nozzle assembly (first pos. 1, then 2, then 3)
After blowing out, the 3-way valve switches again (high-pressure water tank/washing tank)
program end

* After an adjustable cycle time, the high-pressure water tank is partially emptied via a solenoid valve and automatically refilled. This saves a lot of fresh water and requires far less energy to heat the water.