(Step 1) The tube is loaded into both grippers. Pressing the START button closes the compression mechanism, which quickly heats a 75 mm section of the tubing.
(Step 2) The compression mechanism opens, both the top and bottom grippers then move in opposite directions to stretch the tubing. The top gripper has an integrated force sensor that allows measurement and control of the tension in the tube.
(Step 3) After the 1st stretch the parison is moved through the compression mechanism to prepare for the second stretch.
(Step 4) Both grippers again move in opposite directions for the final stretch. After the process is finished the parison can be dropped into a bin below the bottom gripper.