XL1200 PneumaticsY Pistons
Z Pistons
Ink Purge
Pneumatic Panel
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XL1200 Pneumatics
Y Pressure Roller Pistons
The pistons are controlled by the Pneumatic Panel, and they work with an air pressure of 2.5 bar.
The pressure roller has a total of 3-5 pistons depending on the machine.
The speed of these pistons can be regulated.
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XL1200 Pneumatics
Z Shaft
This shaft is controlled by two pistons, which hold the Z rubber Roller.
The Pressure used is 4.5 Bar.
The speed of those pistons can also be controlled, and for safety reasons it should be very slow.
The Off position in this Axes, is when the pistons are UP. If there is a loss of pressure, the roller has two springs which lift or maintain the roller in the upward position.
Engineer Training
XL1200 Pneumatics
Ink Purge
We use air pressure of 0.8 bar to clean the heads
For this we have two air valves for each color.
Each air valve controls 4 heads, and the valve splits to two outputs, one for each partition of the secondary tank.
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XL1200 Pneumatics
Pneumatic Panel
This Panel controls the Z pistons and Y pistons. It also regulates and displays the air pressure for the pistons as well as for the Ink Purge.
The Panel is also included in the safety system. If the Emergency Stop button is pressed, all air supply to the system will be cut off.
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XL1200 Pneumatics
Pneumatic Panel
the following:
ON / OFF Buttons
These 4 buttons control the Z and Y pistons in the following way.
On Y, when the Green Button is pressed, the pressure roller goes UP. The green button lights.
On Z, when The Green Button is pressed, the rubber shaft goes down. The green button lights.
Pressing either Red Button, turns OFF each Shaft; Y goes down, Z goes UP. Red Button Lights.
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XL1200 Pneumatics
TIMERS
There are 2 safety timers which control the delay of each shaft before it starts to move. After pressing any button, an alarm goes off, while the delay is present.
You can adjust this delay in the timers, by rotating the little dial in them, and setting the desired number. The units are in seconds, but this can be changed.
The timer has 4 dip switches. The first 2, define the time range and the last 2 the mode. The Correct setting, should be 1 up, and the rest down, so that the range is in seconds.
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XL1200 Pneumatics
REGULATORS AND FILTERS
There are 2 water filters in the panel. The first one on the bottom, filters the whole system from water, and the second one is for Ink purge, because it is more sensitive.
There are 3 regulators, one for each function, Z, Y, and Ink Purge. Adjust the pressure by Turning the black top cap.
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XL1200 Pneumatics
Gauges and Main Air Valve
There are three gauges, one for each section. They display the current pressure applied:
The first for Ink Purge (0.8bar)
Second Y pistons (2.5 Bar)
Third Z pistons (4.5 Bar)
The main Ink Valve, opens and closes the entrance of Air to the whole system.
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XL1200 Pneumatics
VALVES
There are 3 electronic valves in the panel. One is for the safety system, which cuts all air entrance if emergency is pressed. And the other two are for the Y and Z piston control.
Engineer Training
XL1200 Pneumatics
General Diagram.
Engineer Training
XL1200 Pneumatics
Ink Purge
0.8 Bar
Y Pistons
2.5 Bar
Z Pistons
4.5 Bar
Ink Purge