Home > All Products > MDrive Intelligent Motors > MDrive Linear Actuators > MLM1 NEMA 23 External Linear Step/direction input IP20

MDrive® Plus
MLM1 NEMA 23 External Linear Step/direction input IP20
MDrive Plus NEMA size 23 (57 mm) integrated stepper motor linear actuator. This is a Step/direction input with SPI interface for parameterization.
- Holding torque range oz-in (N-cm): 90 …283 (64 … 200)
- I/O connector options: Flying Leads, Pluggable, Wire Crimp
- Com connector: IDC, None
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General | ||
---|---|---|
Control Type | — | Step/direction input |
Control Method | — | |
P1 Connector Options | Power & I/O | Flying Leads, Pluggable, Wire Crimp |
P2 Connector Options | Comm | IDC, None |
Communications Interface | — | SPI |
NEMA Size | NEMA (mm) | 23 (57) |
Holding Torque Range | oz-in (N-cm) | 90 …283 (64 … 200) |
Operating Temperature | [°C] heatsink | 85 |
[°C] motor | 100 | |
IP rating | — | IP20 |

Electrical | ||
---|---|---|
Input Voltage | VDC | 12 … 75 |
Power Supply Current Requirement | [A] | 2.0/3.5* |
Inputs | ||
---|---|---|
Voltage | [+ VDC] | |
Current | [mA] Max |
Motion | ||
---|---|---|
Digital Filter Range | [nS … μS] | 50 … 12.9 |
[MHz … kHz] | 10 … 38.8 | |
Step Frequency | [MHz] Max | 5 |
Microstep Resolutions | [Steps/Rev] | 200 … 51200 |
Clock Types | Step/Direction, Step Up/Step Down, Quadrature |
Force-Speed Performance
Test conditions: maximum force/load is based on a static load. This will vary with a dynamic load.



Motor Specifications
Spec | Notes | Value |
---|---|---|
Holding torque | oz-in | 90 |
N-cm | 64 | |
Maximum screw misalignment | ° | ±1 |
General purpose nut | ||
Maximum thrust | lbs | 60 |
kg | 27 | |
Maximum repeatability | in | 0.005 |
(mm) | (0.127) | |
Anti-backlash nut | ||
Maximum thrust | lbs | 25 |
kg | 11 | |
Maximum repeatability | in | 0.0005 |
mm | 0.0127 | |
Motor | ||
Rotor inertia | oz-in-sec2 | 0.0025 |
kg-cm2 | 0.18 | |
Weight (without screw) | oz | 22.0 |
g | 625.0 |
Mechanical dimensions
Screw travel specifications
Travel per revolution | ||
---|---|---|
Screw | inches | mm |
Screw G | 0.375 | 9.525 |
Screw A | 0.20 | 5.08 |
Screw B | 0.167 | 4.233 |
Screw D | 0.0833 | 2.116 |
Travel per full step | ||
Screw | inches | mm |
Screw G | 0.001875 | 0.0476 |
Screw A | 0.001 | 0.0254 |
Screw B | 0.000835 | 0.0212 |
Screw D | 0.0004165 | 0.0106 |
Nut specifications
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General purpose nut
For applications not requiring backlash and wear compensation. Round flange shape.
Max Thrust: 60 lbs (25 kg)
Anti-backlash nut
For applications requiring backlash-free operation for high accuracy and low drag torque. Triangle flange shape.
Factory-preloaded: The anti-backlash nut ships pre-loaded from the factory. Should you need to remove it please read the assembly instructions.
Max Thrust: 25 lbs (11 kg)
[/wpv-conditional]
End treatment options
Need a custom leadscrew solution?
SEM offers numerous customization options for your lead screw. Contact us to learn more!
Leadscrew maintenance statement
While under optimal conditions lubrication interval is expected to occur approximately once every 1000 hours of service. Actual life will depend on application and environment. Based upon this, frequent inspections must be performed and a maintenance interval determined based on actual conditions.
Recommended lubricant: Dupont Krytox GPL 206
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