| Ertalyte® Mandrel made for IOL manufacturing with DAC lathe Ertalyte® is an unreinforced, semi-crystalline thermoplastic polyester based on polyethylene terephthalate (PET-P). It is manufactured from proprietary resin grades made by Quadrant. Grinded to perfection at the lowest tolerances, the mandrels are used and machined by a DAC ALM lathe or MLC Combo machine equipped with Dead Length collet. Made to facilitate your IOL manufacturing process, the O&O Mandrels will allow you to use water soluble wax. MANUFACTURING PROCESS USING O&O ERTALYTE® MANDREL: Upper row: -Take an O&O Ertalyte® Mandrel (1) and lathe it as a collet on DAC lathe (2); - Heat the mandrel to 65°C and place the cold 16.0 mm blank into the mandrel, which will be held in place by contraction. - Lathe (4) with a 15.8 mm seat, then mill (5) the blank from the back side. Lower row: - Take a O&O Ertalyte® Mandrel (6) and lathe it as a mirror image of the back side of your lens (with a 0.02 mm gap for wax) on DAC lathe (7), then drill a 3.0 mm hole for wax overflow; - Heat the mandrel to 65°C and dispense water soluble wax on the first side of the machined blank (9) and place manually the two mandrels face to face; - Deblock automatically, using the outside groove on the first side mandrel; - Place the second side mandrel with its waxed blank in the DAC lathe (10); - Lathe (11) the front side of your lens, - Deblock your lens by any method. |
|
