Compact Rotary/Linear Actuator Under 18mm, 1kg-cm Torque, DC Powered, Affordable Options

Hello everyone,


I am new to the forum, I require a rotary/linear actuator (whether it is bldc or servo or stepper or even a solenoid) which has at least 1 Kg-cm torque (generated for approximately 30% of duty cycle applies for solenoid), and the dimension of axis side less than 18mm ( including the shaft) and works on DC power source also should be reasonably priced. Incase no success in existing products, please help me build it at DIY level.
Thanks in advance

Hi  Varadendra-Do you need rotary or linear?  Those are two very different devices.  How fast does it need to operate? Do you need position feedback? What operating voltage do you need?Give me a bit more info and I'll try to help.- Rick

Varadendra one of your pics is of a LEDEX rotary solenoid - you can find details herehttps://www.testco-inc.com/ledex
Scroll down for rotary solenoids, click on the size links to get datasheets with dimensions.Being an American company, everything's in imperial, but by my calculations 1 kg-cm = 0.88 lb-in.  They have options going up to over 90 degree rotations.  If you want full 360 degree or continuous rotation you'd be better going for a stepper motor.  I have seen pancake -type steppers in printers, so they do exist in dimensions that would suit you.  A bit of googling is in order.

Yes, I was asking regarding Rotary solenoid only has it gives rotary actuation.And my requirement may seem peculiar but, thin form factor with high torque is what i require.

Rotary solenoids don't provide a lot of torque for their size.  You mention 18mm front-to-back.  How about the other two dimensions?  How quickly does it have to move?  A small DC motor with worm gear drive might be an option.Is THIS an option?  It's 18.5mm.

-Rick