Duff-Norton is an ISO 9001 certified leading manufacturer of reliable and high-quality rotary unions, acme and ball screws and nuts, linear actuators, screw jacks, electric cylinders and rail maintenance equipment. These products are ideal for applications in healthcare, metal fabrication, construction, packaging, food & beverage, material handling and transportation industries. The Duff-Norton Rotary Union catalogue comprises DWA, 5000, 8000 and 9000 Series rotary unions. The 9000 Series rotary unions are suitable for use with water, steam and hot oils. They feature NPT connection, carbon steel or stainless steel construction and bellows sealing system, and can withstand up to 250 psi pressure. The heavy-duty Duff-Nortonball screw actuators are mainly designed to create linear motion without friction. They consist of a ball recirculator, a ball screw nut and a ball screw spindle, and are available in aluminium / cast iron housing and in different hp and efficiency ratings.
You can choose from a wide range of these actuators and other company products, such as acme flanges and rotary union cartridges, on Raptor supplies, one of the authorised Duff-Norton distributors.