HELP: Micro Linear actuators

Posted by cha-f on November 27, 2008, 5:25 am

I was searching the web in vain for a very small linear actuator (with
a stroke about 20mm and a few Newtons force) without much success. The
smallest I found were
Firgelli PQ-12(http://www.firgelli.com/pdf/PQ12_datasheet.pdf ) and
LS-12(http://www.firgelli.com/pdf/L12_datasheet.pdf )
Their LS-6 is still in development. Can somebody please help me
finding a smaller linear actuator?

Thank you!

Posted by Si Ballenger on November 27, 2008, 10:33 am

On Thu, 27 Nov 2008 02:25:09 -0800 (PST), cha-f

>I was searching the web in vain for a very small linear actuator (with
>a stroke about 20mm and a few Newtons force) without much success. The
>smallest I found were
>Firgelli PQ-12(http://www.firgelli.com/pdf/PQ12_datasheet.pdf ) and
>LS-12(http://www.firgelli.com/pdf/L12_datasheet.pdf )
>Their LS-6 is still in development. Can somebody please help me
>finding a smaller linear actuator?
>Thank you!

You might check below:

http://www.lado-tech.net/products.php?cat=7

Posted by John Nagle on November 27, 2008, 2:42 pm

cha-f wrote:

> I was searching the web in vain for a very small linear actuator (with
> a stroke about 20mm and a few Newtons force) without much success. The
> smallest I found were
> Firgelli PQ-12(http://www.firgelli.com/pdf/PQ12_datasheet.pdf ) and
> LS-12(http://www.firgelli.com/pdf/L12_datasheet.pdf )
> Their LS-6 is still in development. Can somebody please help me
> finding a smaller linear actuator?
>
> Thank you!

2cm stroke isn't "very small". There are some actuators for auto-focus
cameras much smaller than that.

Take a look at these devices:

http://airmidimicros.com/MIServos.htm

Those may be too small for you. Here's something a bit bigger:

http://www.firgelliauto.com/default.php?cPath=110

Do you need position control, or are limit switches enough?

John Nagle

Posted by D Herring on November 28, 2008, 12:29 am

cha-f wrote:

> I was searching the web in vain for a very small linear actuator (with
> a stroke about 20mm and a few Newtons force) without much success. The
> smallest I found were
> Firgelli PQ-12(http://www.firgelli.com/pdf/PQ12_datasheet.pdf ) and
> LS-12(http://www.firgelli.com/pdf/L12_datasheet.pdf )
> Their LS-6 is still in development. Can somebody please help me
> finding a smaller linear actuator?

Something else to look at:
http://www.nanoactuators.com/nano-actuator.htm
N-310 NEXACT® PiezoWalk® linear drives feature travel ranges of 20 mm
and push/pull force capacities to 10 N in a compact package of only 25
x 25 x 12 mm.

- Daniel

Posted by John Nagle on December 1, 2008, 12:00 pm

D Herring wrote:

> Something else to look at:
> http://www.nanoactuators.com/nano-actuator.htm
> N-310 NEXACT® PiezoWalk® linear drives feature travel ranges of 20 mm
> and push/pull force capacities to 10 N in a compact package of only 25 x
> 25 x 12 mm.

Those things are great, but they're very expensive. Those are used for
precision alignment of optical components, operations in wafer fabs, and
other applications where you need sub-nanometer precision.

John Nagle

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