Compact Stepper Motor Actuators
A lead screw that converts rotational motion to linear motion sits inside the motor body for a compact footprint. Add a driver and controller to these actuators to repeatedly position loads with speed and precision. Moving in small, equal steps, these actuators are good for jobs requiring fine motion control, such as positioning electrical components on a circuit board. Their load stays in position even when a counteracting force is applied, so you don’t need encoders, sensors, or other position feedback devices.
All have bipolar hybrid stepper motors, which deliver greater torque, precision, and efficiency than other types of stepper motors. The splined shaft keeps the rod from rotating as it extends and retracts.
Travel distance per full step determines the control you have over the actuator's positioning. The smaller the measurement, the finer positioning control you have, but the more steps it will take to go the same distance.
Dynamic load capacity is the maximum load an actuator can move. If you increase the speed, the dynamic load capacity decreases. Click on a part number and select "Product Detail" to view the load-speed chart and confirm the actuator will work for your application.
For technical drawings and 3-D models, click on a part number.
Dynamic Load Capacity, lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel Distance per Full Step | Stroke Lg. | Pull | Push | Max. Speed, in./sec. | Max. Current per Phase, A | Full Step Increment | Polarity | No. of Wire Leads | Extension Rod Type | Retracted Lg. | Each | |
NEMA 17 | ||||||||||||
| 0.00015625" | 2" | 50 | 50 | 0.4 | 1.5 | 1.8° | Bipolar | 4 | Nonrotating | 6" | 0000000 | 0000000 |
| 0.000625" | 2" | 50 | 50 | 1.25 | 1.5 | 1.8° | Bipolar | 4 | Nonrotating | 6" | 0000000 | 000000 |
| 0.000625" | 2" | 75 | 75 | 1 | 2.6 | 1.8° | Bipolar | 4 | Nonrotating | 6 3/8" | 0000000 | 000000 |
| 0.00125" | 2" | 60 | 60 | 2.25 | 2.6 | 1.8° | Bipolar | 4 | Nonrotating | 6 3/8" | 0000000 | 000000 |
NEMA 23 | ||||||||||||
| 0.000125" | 2" | 200 | 200 | 0.25 | 2 | 1.8° | Bipolar | 4 | Nonrotating | 6 3/4" | 0000000 | 000000 |
| 0.0003125" | 2" | 200 | 200 | 0.06 | 2 | 1.8° | Bipolar | 4 | Nonrotating | 6 3/4" | 0000000 | 000000 |
Miniature Electric Actuators with Automated Controls
Smaller than any other actuator in our offering, these actuators’ short stroke length makes them good for automating fine, precise adjustments. They’re often used for aligning, pressing, and diverting. They come with an all-in-one motion control system to set the speed, timing, and position with buttons—no programming is required.
Rod-style actuators have threads on the front of the rod.
Slide table-style actuators give you setup flexibility, since you can mount equipment on top or in front. Mount on top to reduce the space you need to move a full stroke length.
For technical drawings and 3-D models, click on a part number.
Lg. | Dynamic Load Capacity, lbs. | Extension Rod | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke | Retracted | Voltage | Full Load Current, A | Horizontal | Vertical | Max. Speed, in./sec. | Repeatability, mm | Extension Rod Type | End Type | Dia. | Thread Size | Thread Pitch, mm | Environmental Rating | Each | |
Rod Actuator Style | |||||||||||||||
| 1" | 5 7/8" | 24V DC | 2.2 | 4 | 3 | 7.87 | ±0.05 | Nonrotating | Threaded | 0.55" | M5 | 0.8 | IP40 | 0000000 | 0000000 |
| 2" | 6 1/2" | 24V DC | 0.9 | 2 | 1 | 5.91 | ±0.05 | Nonrotating | Threaded | 0.47" | M4 | 0.7 | IP40 | 0000000 | 000000 |
| 2" | 6 7/8" | 24V DC | 2.2 | 4 | 3 | 7.87 | ±0.05 | Nonrotating | Threaded | 0.55" | M5 | 0.8 | IP40 | 0000000 | 000000 |
Slide Table Actuator Style | |||||||||||||||
| 1" | 5 1/2" | 24V DC | 0.9 | 2 | 1 | 5.91 | ±0.05 | Nonrotating | Unthreaded | 0.47" | __ | __ | IP40 | 0000000 | 000000 |
| 1" | 6" | 24V DC | 2.2 | 4 | 3 | 7.87 | ±0.05 | Nonrotating | Unthreaded | 0.55" | __ | __ | IP40 | 0000000 | 000000 |
| 2" | 6 5/8" | 24V DC | 0.9 | 2 | 1 | 5.91 | ±0.05 | Nonrotating | Unthreaded | 0.47" | __ | __ | IP40 | 0000000 | 000000 |
Electric Actuators
Move loads with consistent, repeatable push-pull motion. These actuators hold their loads in position even if power fails. Some actuators have a brake that prevents loads from shifting even slightly, so they’re best for vertical and high-vibration applications.
To protect the motor from overload when the extension rod is at the end of the stroke, all actuators have either a limit switch or clutch. Fixed limit switches cannot be moved to adjust the length of the stroke.
Actuators with automatic overload protection prevent damage to the motor from overheating. They have a switch that shuts off the motor if it’s too warm or if it exceeds the maximum duty cycle. The switch automatically resets once the motor is cool enough to operate.
All actuators have a clevis hole on each end for mounting. Secure both ends of actuators with rotating extension rods to fixed surfaces, so the rod extends and retracts instead of rotates. Twist the extension rod until the clevis holes line up with your mounting bracket.
Maximum speed is how fast the actuator will move under no-load conditions. If you increase the load, the actuator speed will decrease. Use a speed-load chart to confirm which actuator will work for your application. Click on a part number and select “Product Detail” to view the chart for an actuator.
Actuators | Replacement Connectors | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke Lg. | Voltage | Full Load Current | Max. Speed, in./sec. | Overload Protection Type | Extension Rod Type | Environmental Rating | Retracted Lg. | Each | Each | ||
25 lbs. Dynamic Pull/Push Load | |||||||||||
With Fixed Limit Switches | |||||||||||
| 2" | 12V DC | 3.8A | 3 | Automatic | Rotating | IP66 | 7" | 0000000 | 0000000 | 0000000 | 00000 |
| 2" | 24V DC | 1.6A | 3 | Automatic | Rotating | IP66 | 7" | 0000000 | 000000 | 0000000 | 0000 |