PVC vacuum forming advertising machine cover.

Vacuum forming step: 

Step1. Make the plastic sheet be clamped into position which above the vacuum forming mold inside the vacuum forming machine.

Step 2

The sheet is then heated by two heaters one above the sheet and one below the sheet. This method is called sandwich heating and gives a more consistent temperature throughout the sheet avoiding any cold areas which in turn gives you a sharper and more defined vacuum forming .

 Step 3

Once the sheet is heated to the correct temperature it will become pliable, the vacuum forming mold is raised and a vacuum is applied which pulls the now malleable plastic sheet down onto the vacuum forming mold.

Step 4

The vacuum is kept on while the plastic is cooled using large fans and water spray so that it retains the shape off the vacuum forming mold.

Step 5

Once the plastic is cooled the vacuum is released and the plastic part removed by gently applying a short blast of air between the vacuum forming mold and the plastic component.

Step 6

Pick the plastic sheet which is finished vacuum forming out from the vacuum forming machine.

Step 7

Cut the edge by CNC machine or hand.

Step 8

Clearing and packing.