Lexium MDrive® Linear Actuator
LMD23 NEMA 23 Pulse/direction External Linear Actuator IP65
Compact integrated motor with RS-422/485 communications interface. Feedback options include open or closed loop with hMTechnology.
- Motor size: NEMA 23 (57 mm)
- Holding Torque range:
- Input voltage: +12 to +60 VDC
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Specifications
General Specifications
| General | ||
|---|---|---|
| Control type | -- | Pulse/direction input |
| Communications interface | -- | RS-422/485 |
| Communications features | -- | MCode OS |
| NEMA size | -- | 23 (57 mm) |
| Torque range | oz-in (N-cm) | |
| Operating temperature | [°C] heatsink | 85 |
| [°C] motor | 100 | |
| IP rating | -- | IP65 |
California Residents – Click here for Proposition 65 warning Actuator Performance
Mechanical
Dimensions are in inches (mm)
Dimensional Information
Screw Specifications
Screw Travel
| 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 |
Screw dimensions – inches (mm)
| Dimensional information | |
|---|---|
| in / mm | |
| A | 3.0 to 24.0 / 77.5 to 610.0 in 0.1 / 0.25 increments |
| B | 0.50 / 12.7 |
| C | 0.375 / 9.525 |
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)
End treatment options
| End treatments | ||
|---|---|---|
| None | — | |
| Smooth | Ø 0.2362″ ±0.001 Ø 6mm ±0.003 | |
| Threaded | Metric: M6 x 1.0mm thread to within 0.03″/ 0.76 mm of shoulder | UNC: 1/4-20 UNC-2A thread to within 0.05″/ 1.3 mm of shoulder |
Need a custom screw 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
Technical Resources
Tutorials, application notes and example programs
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Part Number Builder
Select from the available options to build a part number.
P/N:
Selected product details
| P/N | Description |
|---|---|
| LMD | Lexium MDrive with standard torque motor |
| P | Pulse direction input with RS-422/485 communications interface |
| 57 | NEMA 23 (57 mm) stepper motor |
| C | Sealed against water jets and dust (IP65) |
Product installation reference
Get detailed connectivity and critical specification information on a printable sheet.
Get detailed connectivity and critical specification information on a printable sheet.
Have questions about this product?
Contact a sales engineer to enquire about pricing, availability or application specific questions related to this product.
Contact a sales engineer to enquire about pricing, availability or application specific questions related to this product.
Do you have unique application requirements?
We provide customized motion solutions from gearboxes to software modifications. Contact us today about your application.
We provide customized motion solutions from gearboxes to software modifications. Contact us today about your application.
