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. 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 and can withstand up to 250 psi pressure. They feature NPT connection, carbon steel or stainless steel construction and a bellows sealing system. The heavy-duty Duff-Norton ball screw actuators are mainly designed to create linear motion without friction. They include a ball recirculator, ball screw nut and ball screw spindle, available in aluminium / cast iron housing and in different power and efficiency ratings. The brand offers a wide range of these actuators and other company products, such as acme flanges and rotary union cartridges.
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Electro Mechanical ActuatorsUsed to convert electrical energy into linear displacement to allow controlled movement of tools / components to a particular position. Feature a gear / belt / acme drive system and offered in a TEFC / TENV / IP66 enclosure(277 Products)
Rotary Joints and UnionsDesigned to transfer liquids or gases from a stationary source into a rotating or swivelling piece of machinery. Can operate at different temperatures and have a maximum rotational speed of 1000 rpm(18 Products)
Mechanical ActuatorsIdeal for application in satellite dish positioning and for moving heavy-equipment. Include a variety of ball screw and machine screw actuators, and offered in aluminium / cast iron / ductile iron variants in different hp ratings(140 Products)
Rotary Joint CartridgesIncludes 5000 & 9000 Series stainless steel replaceable cartridges designed to expand the lifespan and reduce the overall maintenance cost of rotary unions(25 Products)
Acme NutsDesigned for use with high load bearing Acme threaded screws, studs and rods. Can handle dynamic loads up to 31034 lb and offered in different overall diameters(6 Products)
Actuator AccessoriesIncludes controllers for use with LT Series actuators and extension cables, and foot switches and handsets for use with LC Series controllers(14 Products)
Rotary Joint Elbows(5 Products)
Acme FlangesSteel made acme flanges used for mounting objects to an acme lead screw. Designed for use with linear actuators(2 Products)
O-Rings(3 Products)
Jack Screws(2 Products)
Pressure and/or Vacuum Transducers(1 Product)
Duff-Norton screw jacks & linear actuators are suitable for courier shipment & air freight. They require simple packaging, depending upon the product dimensions.
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. 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 and can withstand up to 250 psi pressure. They feature NPT connection, carbon steel or stainless steel construction and a bellows sealing system. The heavy-duty Duff-Norton ball screw actuators are mainly designed to create linear motion without friction. They include a ball recirculator, ball screw nut and ball screw spindle, available in aluminium / cast iron housing and in different power and efficiency ratings. The brand offers a wide range of these actuators and other company products, such as acme flanges and rotary union cartridges.
Duff-Norton smart linear actuators combine intelligent solutions with robust machinery to allow simple installation, configuration and operation, allowing systems to be up and running quickly and reliably. Smart actuators are easier to set up, operate, adjust, troubleshoot and monitor by incorporating intelligent capabilities, such as those availab...
Screw jacks from Duff-Norton are used to lift, position (push, pull, tilt and roll) and support a wide range of loads. They are ideal for plastics machinery, beverage bottling systems, aircraft assembly and paper manufacturing. Screw jacks range in size from mini screw jacks that can support up to 1000 pounds to acme screw jacks that can support up to 350 tonnes and everything in between.
It is critical to mount the actuator to avoid side loading and eccentric loading. A clevis mount actuator should be able to pivot freely on its clevis pins. There should be no brackets or supports restraining the actuator housing or outer tube. The actuator should be mounted so that the load is applied along the longitudinal axis of the translating tube, thereby improving the actuator's performance and life.