Linear Actuator

Hello I’m looking for a miniature linear actuator that can extend and contract at an exact rate. I need this to be dead on perfect. I need it to do 440 full movements a second. It doesn’t have to carry a load at all all it has to do it move out and back a percise number of times. The force can be a very low. Any suggestions?

What do you think the max speed of a Linear Actuator is? What about a coil over? I need it to be small. Im trying to counter balance frequencies specifically lower frequencies in my recording studio. Specifically lower frequencies so I was thinking 440Hz would be the max. I can also use lower octaves. How fast can a solenoid go? I’m sorry, I’m an audio engineer not very good with mechanical.

Cool thank you. I’ll look at your products for 4 bar mechanism.

Hi musicman,

Welcome to the RobotShop Forum. 440 strokes in one second is too fact for a linear actuator, so you will need a different technology. It may even be too fast for a solenoid, so you may want to consider a DC motor connected to a 4-bar mechanism to produce linear motion. You can use a DC geared motor to lower the speed.

Hope this helps,

Switching a motor back and forth 440 times each second is not possible; at least with any of the products we have, which is why you need to consider a different approach. A linear actuator moves about 27mm a second, which is a far cry from what you need. You may be able to get the right type of solenoid to move at around the frequency you need, but we think a motor and 4-bar mechanism is still your best choice.

Sincerely,

A 4-bar mechanism is not actually a “product” but rather something you will need to make. Look at the Crank-rocker design, which translates rotational motion into linear motion (you need to add another link to the end).

Sincerely,