20mm PM Stepper Linear Actuator

The size 20mm is our smallest PM Stepper Linear Actuator.

External, Non-Captive and Kaptive versions are available.

Various screw end machining and length customization is optional.

20mm PM Stepper Linear Actuators images

Motor Characteristics

In a mobile environment, you can move left and right to see the contents (tables).

20mm Frame
Polarity Bi-Polar
Linear Actuator Type External, Non-captive, Kaptive
Step Angle 7.5° 15°
Winding 5V 12V 5V 12V
Phase Current 370mA 160mA 370mA 160mA
Phase Resistance 13.5Ω 74.5Ω 13.5Ω 76Ω
Phase Inductance 6.5mH 36mH 4mH 25mH
Power Consumption 3.4W
Rotor Inertia 1.05gcm2
Insulation Class B
Insulation Resistance 100MΩ
Mass 35g
Bearing Ball Bearing

Available Lead Screw and Travel per Step

In a mobile environment, you can move left and right to see the contents (tables).

Step Angle Screw lead Travel per step Screw lead code
mm inch mm inch
7.5° 0.6096 0.024 0.0127 0.0005 AA
1.2192 0.048 0.0254 0.0010 B
2.4384 0.096 0.0508 0.0020 J
15° 0.6096 0.024 0.0254 0.0010 AA
1.2192 0.048 0.0508 0.0020 B
2.4384 0.096 0.1016 0.0040 J

Dimensional Drawings

external actuator images
external actuator demension
non-captive PM Stepper Linear Actuator
non-captive PM Stepper Linear Actuator
kaptive actuator images
kaptive PM Stepper Linear Actuator
Stoke X (mm) Front extension A Total extension B Body length C (Max)
14 13.5±0.25 40.5 30.5
18 17.5±0.25 48.5 34.5
25 24.5±0.25 62.5 41.5
31 30.5±0.25 74.5 47.5

Speed Thrust Curves

speed thrust curves image
speed thrust curves image


Screw End Machining
opt screw end machining
Teflon Coating

If customer's applications require greaseless screw and nut combination, DINGS' offers teflon coated lead screw of stepper linear actuator.

Teflon coated lead screw stepper linear actuator enables it's longer life cycle and better thrust force generation against conventional SUS lead screw.

Teflon coating can be applied in the whole range of lead screw options in DINGS' and all types of PM linear actuators such as External, Non-Captive and Kaptive.

teflon coat