The Rex gate hinge, (formerly known as the Royal), started life as a cast irondevice, including the inner workings and brackets. Working with cast iron is a labor intensive and dirty process, and increasingly expensive. The Rex (Royal) Series 1 Type A Gate HingeWith the sale of the Fitzroy factory and ending of door closer manufacturing,it was the right time to update the gate hinge. Series 2 was a hinge with the body made from laser cut components, removingthe cast iron components and the machining processes.The Rex Series 2 Type A Gate HingeA major investment in tooling created the series 3 gate hinge. The precisionnature of diecasting reduces the need for machining operations, thus simplifyingthe manufacturing process. Series 3 is the current product.