LT Series – 27 to 225 lbs

Linear Actuators – 25 to 2,000 lb. VOLTAGE: 12 or 24VDCSTANDARD STROKES: 2 to 11.8 in (50 to 300 mm)SPEED: 0.3 to 1.3 in/s (8 to 33 mm/s)TEMPERATURE RANGE: -13ºF to 150ºF (-25ºC to 65ºC)ENVIRONMENTAL RATING: IP66 protection OPTIONS:

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DWA Series

General Purpose Rotary Unions MEDIA: Water, Non-Corrosive Fluids, and OilPRESSURE: 200 psi (1.38 MPa), 180 psi – 2 inch size only (1.24 MPa)TEMPERATURE: 158°F (70°C), 159°F (71°C – 100°C): Reduce pressure rating 15%SPEED: 1750 RPM, 1750 – 3500 RPM: Reduce pressure rating 20%MATERIAL: Silicon carbide with carbon graphite seal facesTHREADS: 1/2 Inch to 2 Inch NPT, BSP &…

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300 Series

General Purpose Rotary Unions MEDIA: Air, WaterPRESSURE: 117 PSITEMPERATURE: 250ºF (122ºC)SPEED: 3500 RPMMATERIAL: Nickel Plated SteelTHREADS: 1/8 inch to 1/4 inch NPT, Machine thread, BSP and BSPP available

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Mini Screw Jacks

Screw Jacks – 1/4 to 350 Ton Up to 1,000 lbs. capacity. Duff-Norton miniature screw jacks allow for extremely fine adjustments. These small screw jacks are equipped with anti-backlash nuts to minimize vertical backlash between the screw and worm gear nut. The manual operation is accomplished with an easy-to-use hand knob. The dial indicator is…

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Anode Heavy Duty Screw Jacks

Screw Jacks – 1/4 to 350 Ton The Anode heavy-duty screw jack has been modified for high temperature loads found in the alumina smelting industry. The worm gears are made of wear resistant bronze and are up to 40% larger than our standard versions. This anode screw jack also contains heavy duty seals that protect…

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Stainless Steel Screw Jacks

2-to-100-ton load capacity. Stainless Steel Screw Jacks offer positive mechanical action, precise positioning, and uniform lifting speeds. Standard configurations include upright or inverted units with translating or rotating lifting screws, and top plate, threaded, or clevis ends. Duff-Norton offers a complete line of both standard and custom engineered machine screw actuators for applications up to…

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Anti-backlash Screw Jacks

Screw Jacks – 1/4 to 350 Ton 1/4-to-250-ton capacity. Anti-backlash actuators reduce vertical backlash resulting in smooth, precise operation and minimal wear. Backlash occurs when the motor driving an actuator reverses its load direction. When the actuator is under load, the lifting screws threads are supported by the worm gears threads. The anti-backlash nut, pinned…

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Essential Platform Screw Jack

Screw Jacks – 1/4 to 350 Ton Essentials Platform Actuators – 1/8-to-10-ton load capacity. Establishing a strong foundation. The new Essentials Platform is built on Duff-Norton’s history of reliable products and provides customers with cost effective options to meet their fundamental needs.

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Acme Screw Jack

Screw Jacks – 1/4 to 350 Ton 1/4 to 350 ton capacity. Acme screw jacks offer positive mechanical action, precise positioning, and uniform lifting speeds. Standard configurations include upright or inverted units with translating or rotating lifting screws, and top plate, threaded, or clevis ends. Duff-Norton offers a complete line of both standard and custom engineered…

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