Inverted Rotating Ball Screw Actuators

High-Efficiency Lifting and Positioning for Demanding Applications

CH Bull offers dependable, high-performance Duff Norton inverted rotating ball screw actuators for load-lifting applications that require speed and efficiency. Available in a range of capacities and configurations, these actuators can be customized to meet your application requirements.

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Ball Screw Actuators

Inverted Rotating Ball Screw Actuator Details

Duff Norton inverted rotating ball screw actuators are available in capacities from 500 lbs. to 50 tons and provide fast, efficient lifting and positioning with reduced friction and lower power requirements.

Applications & Performance

  • Faster operation than machine screw actuators
  • Speeds up to six times faster than machine screw designs
  • Reduced friction for lower power use
  • Handles full load in tension or compression
  • Efficient load movement and force application

Operation & Configuration

  • Electric motor operation
  • Hydraulic motor operation
  • Pneumatic motor operation
  • Standard raises in 1-inch increments
  • Multiple units can be synchronized for simultaneous use on the same load

Customization Options

  • Lifting capacity
  • Motor type
  • Stroke length
  • Limit switches
  • Plain screw ends
  • Threaded screw ends
  • Clevis screw ends
  • Top plates

How to Choose the Right Actuator

1

Define Your Requirements

Start by understanding the basics of your application.

  • Total load
  • Travel length
  • Required speed
  • Operating environment
2

Choose the Right Actuator Type

Match the actuator to your application needs.

  • Ball screw: higher speed and efficiency
  • Machine screw: load holding and lower-speed use
3

Confirm Performance Requirements

Ensure the actuator can meet your system demands.

  • Torque requirements
  • Input RPM
4

Finalize the Configuration

Select the appropriate setup for your system.

  • Capacity
  • Speed
  • Duty cycle
  • Mounting configuration

Need more guidance? Use our step-by-step guide to choose the right actuator for your application.

View Selection Guide

Common Questions

A ball screw actuator is a good choice when your application requires higher speeds, frequent cycling and greater efficiency. The ball screw design reduces friction, allowing loads to move more efficiently with lower power requirements.

Ball screw actuators use recirculating bearings to reduce friction, providing higher efficiency and faster operation. Machine screw actuators have greater friction but are typically self-locking, making them well suited for load-holding applications.

Yes. Multiple Duff Norton ball screw actuators can be synchronized for simultaneous use on the same load.

Important considerations include the load, required travel and speed, operating environment, torque requirements and input RPM. The actuator configuration should also be matched to the requirements of your system.

Yes. Actuator input speed should never exceed 1,800 RPM, and the actuator’s static or dynamic load capacities and specified horsepower limits should never be exceeded. Final sizing and performance should be confirmed for the specific application.

Tools & Resources

Documents

Ball Screw Actuators Technical Data Sheet
Mechanical Actuator Selection Guide

Videos

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Get the Right Actuator for Your Application

CH Bull can help you select and configure the right Duff Norton inverted rotating ball screw actuator for your lifting and positioning requirements.

Request a Quote

Or call us directly 800-871-8440