How to purge the APSX-PIM injection machine

HOW TO PURGE THE APSX-PIM INJECTION MACHINE

Warning: USE PERSONAL PROTECTIVE EQUIPMENT BEFORE PURGING.

SAFETY: PRESSURIZED HEATED PLASTIC CAN CAUSE SEVERE BURNS. THE NOZZLE VALVE SHOULD BE OPEN AT ALL TIMES DURING PURGING TO PREVENT SPLATTERING.

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If you switch to a different plastic material to process a different part, the purging process may be required.

If all motor movements are verified ok in manual-operation state, you can perform the purging process. Ideally, use a purging material, natural HDPE plastic pellets, or an equivalent product. Repeat the purging process 3-5 times with manual controls until all the old material is removed from the barrel.

Remove the mold and have the nozzle plate area clean
Load the hopper with purging material and run the hopper until the barrel is fully primed
Set the HEAT on and wait until a minimum of 200 C or until you’ve reached the specific melting point of your plastic.
Set the holding pressure at a low pressure, i.e., 50 - Open the valve.
Take your safety measures with goggles and have the mold gate closed
Use the HOLD PRESSURE button to start the purging process. Increase the pressure if necessary.
Once the plunger has pressed all the way into the barrel, press HOME INJECTION
Repeat this process multiple times until the discharged material is visually the same as the purging material

You can also watch this VIDEO for details: https://youtu.be/bpWXoXczNKQ