Stepper Motorized Cylinder
The stepper motor cylinder is one of the best options from China. If you are looking for a linear cylinder for prototyping other than the high price Servo Motor Linear Actuator or Cylinder, this is the choice.
NEMA17 or NEMA23 stepper motor
Power supply: 9-36V DC
Cylinder diameter: 20mm
Max push force: 300N (200mm/s)
10mm-500mm working length available
Mounting dimension: 187-100 + L (working length)/256-100 + L (working length)