Common Failures Troubleshooting

Issue: Part getting stuck between the ejector pins.

Solution: Remove part by hand and spray the inside of the mold with mold release. Spread with a paper towel within the whole mold.

Issue: Part only filled 50-75%

Cause: Most likely not enough plasticized plastic in the shot volume. Could be caused by a clog in the throat not allowing plastic to be fully plasticized, temperatures being too low, or not enough injection pressure.

Issue: Part filled 80-90%

Cause: Holding pressure too low, temperature too low, injection speed too low, injection pressure too low, holding time too low.

Issue: Error code 096, Not Fully Plasticized. Ran into during Semi-Auto or Automatic run modes.

Cause: The screw was unable to move to the fully rear position during the plasticizing step. This means something is preventing the plastic from melting and entering the valve. Most likely there is a clog in the throat causing a blockage of new plastic.

Solution: Remove the hopper and as much plastic from the throat as possible. Using a screw driver, break the clog out of the throat while being careful not to scratch or damage the screw.

Clog should look something like this stuck in the throat.

Issue: Part is sticking to the wrong side of the mold after mold open.

Solution: Remove the plate from the machine. Using a smaller sized allen key, hammer the sprue through so that the part comes out. Apply mold release to the mud plate side and spread with a paper towel.

Issue: : Part of the sprue remains in the mold after injection.

Solution: Remove the plate from the machine. Using a smaller sized allen key, hammer the sprue through so that the part comes out. Check the hole for any potential dirt or burrs causing the plastic to stick, and clean as necessary.

Issue: Color are not mixed, or colors not added are showing up.

Cause: Already plasticized plastic is in the shot volume and combining with the new plastic added. Purging the volume several times should clear it out.

Issue: Part comes out very brittle after molding.

Cause: Most likely due to improper temperatures either during injection or drying. Injection temperature should be ~200 or below, if higher than this reduce temperatures. If this is the first run of the day, the issue may be that the plastic was left over from previous runs and just needs to be purged.