A US manufacturer of pipe fittings and couplings casts these parts in sand molds. The automated process uses several pneumatic cylinders to put the molds into a properly “stacked” position. It is imperative that these molds are properly positioned so the front and back sides are aligned.
Non-contact laser distance sensors were selected to measure the position of the mold with each placement with the pneumatic arm. The installation puts the device several inches away from the moving mechanical parts. The glass optics of the unit are kept clean with a pressurized air knife.