Rod and Track (rodless) actuators ultimately perform the same function - they move loads back and forth. Depending on your application however, there can be significant advantages to either rod or track actuators in your design.
Rod Actuators
Rod actuators are more common than track actuators. In fact, 90% of our product lineup are rod actuators. Simply put, any actuator functions by extending a rod out of the device to drive motion is a rod actuator.
These are ideal for applications where the load you are pushing is either very lightweight, or not primarily supported by the actuator. Rod actuators are intolerant of side loads by design. Because of this, it's important that when using this type of device, your load is either supported by a guide device such as a linear slide rail or by some other means.
Rodless
A rodless or track actuator does not have a rod that extends from the device to push or pull the load. Rather, it has a carriage or block to mount the load to, and it carries the load along the length of the actuator. Electric rod actuators can be driven via lead screw or belt. All of our track actuators are screw driven.
There are a couple of main advantages to using a track actuator. First, they take up less space overall. For example, if you use a rod actuator, the unit has to be long enough when retracted to fit the rod inside the device. Add to that the length of the rod when it extends from the device. On larger actuators that adds up to significant length. Track actuators carry the load along the length of the device and thus can be used in applications where less space is available.
The second main advantage of using rodless actuators is that the actuator itself is capable of supporting the load. This not only saves you space in your design, but also saves you the cost of a slide rail.
What's right for you?
Do you know what type of actuator is ideal for your application? If you need a hand selecting a device that will work for your application, give our sales team a call. Linear motion is all we do and our sales professionals can help you pick the device that's going to work well with your design.
Common Questions About Actuators
What are the main advantages of using a rod actuator?
Rod actuators are ideal for applications where the load you are pushing is either very lightweight or not primarily supported by the actuator. They require a guide device to support the load to avoid side loading.
Why should I use a rodless (track) actuator?
Rodless actuators take up less space and can support the load themselves, saving space and the cost of a slide rail. They are ideal for applications with limited space and where the actuator needs to support the load.
Are electric rod actuators better than hydraulic or pneumatic ones?
Electric rod actuators are generally simpler and less expensive than hydraulic or pneumatic actuators. They offer smooth linear motion without the need for complex motor controllers or additional equipment to convert rotary motion to linear.
Explore Actuonix Linear Actuators Today
We hope this article has helped you better understand the differences between rod and track actuators. To find out more about our actuators and explore our full range of products, visit our actuators by model page. As a leading manufacturer and innovator in the micro motion marketplace, Actuonix services companies big and small in a number of industries including aerospace, medical, robotics, and more. Get in touch with us today to submit an order or to submit an inquiry.