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Acme Screw Jack

Machine (Acme) screw jacks offer positive mechanical action, precise positioning, and uniform lifting speeds. With both standard and custom engineered machine screw actuators.

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Features and Benefits

  • Flexibility and Customization
    Acme screw actuators are available in various configurations, including different motor types (AC or DC) and mounting options, allowing for customization to fit specific needs and environments. Standard configurations include upright or inverted units with translating or rotating lifting screws, and top plate, threaded, or clevis ends.
  • Precise Positioning
    Controlled accurately for positioning within thousandths of one inch
  • Simplified Design and Integration
    Compared to hydraulic systems, electric linear actuators, including Acme screw types, have a simpler design with fewer components like pumps and hoses, making them easier to install and integrate with other systems.
  • Self Locking
    Models featuring higher gear ratios are inherently load holding as long as the actuator is not subject to vibration
  • Uniform Lifting Speeds
    Since many actuators feature the same gear ratios different capacities can be used in the same application to lift unevenly distributed loads with uniform speeds
  • Operational Safety
    Acme lead screws can sustain static loads, making them a safe choice for applications that require holding a position even when unpowered.
  • Quick, Sure Operation
    All actuators are designed and built to be positive acting, for accurate response to motive power
  • Quiet Operation
    When using polymer nuts, Acme screws operate with very low noise levels, making them suitable for environments where sound reduction is important, such as in healthcare or office settings.
  • Lower Maintenance Costs
    The simpler design and reduced risk of leaks (compared to hydraulic systems) lead to lower maintenance requirements and associated costs.

Documents

Brochures & Catalogs

[Catalogs] Mechanical Actuator (Screw Jacks) Design Guide [Brochure] Duff-Norton Product Capabilities Brochure

Manuals & Supplements

[O&M Manual] Rotating Machine Screw O&M Manual [O&M Manual] Translating Machine Screw OandM Manual [Technical Bulletin] Screw Jack Application Analysis Form

Product & Data Sheets

[Product Sheet] Machine (Acme) Screw Jacks Repair Kits [Product Sheet] Machine Screw Actuator Product Sheet

Drawings & Diagrams

[Dimension Input Drawing] 1/4 Ton Machine Screw Dimensions [Dimension Input Drawing] 1/2 Ton Machine Screw Dimensions [Dimension Input Drawing] 1 Ton Machine Screw Dimensions [Dimension Input Drawing] 2 Ton Machine Screw Dimensions [Dimension Input Drawing] 3 Ton Machine Screw Dimensions [Dimension Input Drawing] 5 Ton Machine Screw Dimensions [Dimension Input Drawing] 10 Ton Machine Screw Dimensions [Dimension Input Drawing] 15 Ton Machine Screw Dimensions [Dimension Input Drawing] 20 Ton Machine Screw Dimensions [Dimension Input Drawing] 25 Ton Machine Screw Dimensions [Dimension Input Drawing] 30 Ton Machine Screw Dimensions [Dimension Input Drawing] 50 Ton Machine Screw Dimensions [Dimension Input Drawing] 75 Ton Machine Screw Dimensions [Dimension Input Drawing] 100 Ton Machine Screw Dimensions [Dimension Input Drawing] 150 Ton Machine Screw Dimensions [Dimension Input Drawing] 250 Ton Machine Screw Dimensions