CUSTOM ROTARY ACTUATORS

Custom Rotary Actuators

With over 40 years of experience in the rotary actuator field, Eckart GmbH provides outstanding production quality provided by experienced specialists. Over the decades Eckart GmbH rotary actuator components have gained a firm foothold in automation and drive technology applications.

Through the constant developments made by Eckart GmbH engineers, and the use of high-quality materials, Eckart GmbH rotary actuator components provide durability and dependability. With a Eckart GmbH rotary actuator, you can profit from our experience.

Eckart GmbH is the leader in manufacturing Helical Spline Rotary Actuators. More than 70% of these actuators are custom-designed to meet specific customer needs. Tell us about your project and we will present you with a customized optimum solution.

Customizations Built to Your Requirements

1. Drive shaft and bottom configurations

Select from a diverse range of drive shaft options including smooth, rectangular, geared, and more. Additionally, choose from a large selection of bottom configurations.

2. Mounting options

Mounting options include foot or flange with fixing grooves, flattened surfaces, or configurations per DIN ISO 5211.

3. Operating pressure above 250 bar (3,625 psi)

For high force applications, you can configure an actuator rated for operating pressures above 250 bar (3,625 psi).

4. Change of rotation direction

While anti-clockwise rotation is standard, actuators can be specially configured clockwise.

5. Angle adjustment over the entire rotary range

If you need greater extension past the standard ±5º of adjustment, you can equip the actuator with a long-range end stop.

6. Custom and intermediate angles

Standard rotations include 90º, 180º, 270º, and 360º. Intermediate angles can be achieved by adding a spacer within a standard model’s housing. A 100º actuator, for example, would use a 180º housing. Angles above 360º can also be achieved by making the helical gears longer.

Custom actuator bodies are available for large quantity orders.

7. Position monitoring and feedback

Any position encoders, proximity switch, and sensors for better control, safety, and diagnostics, perfect for automation and testing applications where exact positioning is essential.

8. Additional bearing support

If the actuator is used for supporting loads, additional radial bearing can be added.

9. Direct connection of valves

Valves can be directly mounted to the top of the actuator to provide better control.

10. Modify end cushioning

The cushioning curve is highly customizable to the application and can be fine tined by utilizing up to 10 individual orifices plus throttling valves. (Not available for E3, optional other models).

11. Add second drive pivot

A second drive pivot can be added to the base of the actuator. This is useful in tipping applications where the load needs dual support.

12. Drive shaft and base configurations

Further customizations can include but are not limited to special paints, colors, lake and saltwater resistance, as well as materials options, servo valve mounting plates, port configurations, and various certifications such as ATEX, DNV, ABS, etc.

For the full range of customizations, download the Eckart brochure.

Helical Spline Hydraulic Rotary Actuators:

Our rotary actuators are the helical spline design. This means, a piston and a helix, or sliding spline, work together to convert the linear motion of the piston into rotational motion. Composed of two moving parts and some form of housing, the sliding helical splined gear concept within the actuator is used in many applications where a rotary movement is required. Helical Spline Actuators function when the piston is axially displaced using hydraulic pressure causing simultaneous rotation of the piston. Standard amounts of rotation are 90°, 180°, and 360°; but are available generally up to 720° or more. Additional rotation is created by making the spline gears longer while maintaining the same diameter. The primary benefit to this type of product compared to alternative designs such as linkages using hydraulic cylinders (linear actuators) is its compact design.

Eckart is a supplier and rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.