Ralph Franklyn John Flower

Cross is a world leading manufacturer of aerospace seals, aircraft piston rings and custom seal rings for aircraft engines, steam turbines, vehicle turbochargers, control valves and many other industrial environments. Since the 1920's the Cross has specialised in the design and manufacture of heat resisting wrought alloy sealing rings and associated products, combining technology with innovation to achieve world-class quality and precision. We have over 30 years experience in the design, test and manufacture of aerospace brush seals, delivering superior performance under the demanding conditions encountered in gas turbines. In addition to aerospace, the power generation industry also benefits from the application of this advanced product. We offer a complete package for the design and manufacture of large diameter metallic seals for use in hot and challenging environments. Diameters in excess of 1800mm are in regular production, operating at temperatures up to 1000°C. Advice on the complexities of material choices is available from our own test results and our experience of making rings in different alloys for diverse applications. We are the world's leading supplier of turbocharger sealing rings for internal combustion engines, with annual production running into tens of millions.