Duff-Norton

United States

A screw jack is a device used to apply a force, push and pull, or move to a position and hold by mechanically converting rotary motion into linear motion Screw jacks (mechanical actuators) capacities from 14 ton to 350 tons Available in machine screw, ball screw, stainless steel machine screw actuators, micro-miniature actuators, high duty cycle actuators, motorized machine screw and ball screw actuators, electric cylinders and motor control systems Accessories include miter gear boxes, c-face motor adapters, limit switches, transducers, visual and digital position indicators, couplings, ball screws and ball screw systems, and locking rings Can be used as alternatives to hydraulic and pneumatic systems

Duff-Norton manufactures linear actuators and electric cylinders Linear Actuator products include TracMaster and LinearMaster Actuators, Modular Actuators and Electric Cylinders Linear actuators are available in capacities ranging from 27 pounds to 25 Tons, gear or belt driven, acme screw and ball screw systems with various AC and DC input voltages Duff-Norton Linear Actuators are specially designed for a variety of commercial and industrial applications These actuators are used for opening and closing, tilting and pivoting, lifting and lowering and positioning Custom designs are also available for special applications Linear Actuators are now being used in place of pneumatics and hydraulics when leaking hydraulic oil is a concern

Duff-Norton has been manufacturing Acme and Ball Screws and Nuts for our actuator products for decades Offers an expanded assortment of screws and nuts for your application requirements Acme Screws & Nuts offer excellent load ratings and Centralizing class screw & nut assemblies Ball Screws & Nuts offer excellent load ratings, 90% efficiency, and long predictable life ratings

Duff-Norton has been manufacturing Acme and Ball Screws and Nuts for our actuator products for decades Offers an expanded assortment of screws and nuts for your application requirements Acme Screws & Nuts offer excellent load ratings and Centralizing class screw & nut assemblies Ball Screws & Nuts offer excellent load ratings, 90% efficiency, and long predictable life ratings

Duff-Norton manufactures Rotary Unions and Swivels in single and multi-port configurations. Rotary Unions are also known as rotary joints, rotating joints, and rotating unions. Rotating joints are used to transfer media from a stationary supply to a rotating component such as a drum or a roll Specifications: Pressure - 10, 000 psi max • Temperature - 600 degrees F max • Speed - 3, 500 RPM max • Sizes - 18" to 12" max Media: Water • steam • hot oil • hydraulic fluid • non toxic - non flammable gases Primary Industries: Chemical • printing • rubber • metals • textiles • plastics • food • paper • machine tools • building materials • construction equipment Basic Applications: Provide heating or cooling media to control the surface temperature of a drum or roll, transfer air or hydraulic fluid to moving components, add fluids to mixers while in motion