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MDrive® Plus

MLM1 NEMA 14 Non-captive Linear Step/direction input IP20

MDrive Plus NEMA size 14 (36 mm) integrated stepper motor linear actuator. This is a Step/direction input with SPI interface for parameterization.

  • Holding torque range oz-in (N-cm): 18…36 (13 … 25)
  • I/O connector options: Wire Crimp
  • Com connector: IDC, Wire Crimp

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Specifications


General
Control Type Step/direction input
Control Method
P1 Connector Options Power & I/O Wire Crimp
P2 Connector Options Comm IDC, Wire Crimp
Communications Interface SPI
NEMA Size NEMA (mm) 14 (36)
Holding Torque Range oz-in (N-cm) 18…36 (13 … 25)
Operating Temperature [°C] heatsink 85
[°C] motor 100
IP rating IP20
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Electrical
Input Voltage VDC 12 … 48
Power Supply Current Requirement [A] 1.0

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




Motor & Mechanical

Force-Speed Performance

Test conditions: maximum force/load is based on a static load. This will vary with a dynamic load.

12 VDC
24 VDC
48 VDC

Motor Specifications

Spec Notes Value
Holding torque oz-in 18
N-cm 13
Maximum screw misalignment ° ±1
Maximum thrust lbs 50
kg 22
Maximum repeatability in 0.005
mm 0.127
Motor
Rotor inertia oz-in-sec2 0.0003
kg-cm2 0.021
Weight (motor+driver) oz 8.0
g 230.0

Mechanical dimensions

Screw Specifications

Screw travel specifications

Travel per revolution
Screw inches mm
Screw A 0.25 6.35
Screw B 0.125 3.175
Screw C 0.063 1.588
Travel per full step
Screw inches mm
Screw A 0.00125 0.0317
Screw B 0.00063 0.0158
Screw C 0.00031 0.0079

Nut specifications

The nut is located internal to the motor.

Max Thrust: 50 lbs (22kg)

End treatment options

End treatments
None
Smooth Ø 0.1967″ ±0.001
Ø 5 mm ±0.003
Threaded  Metric: M4 x 0.7mm
thread to within 0.03″/
0.76 mm of shoulder
UNC: #8-32 UNC-2A thread
to within 0.03″/
0.76 mm of shoulder

Need a custom leadscrew solution?

Custom screw ends

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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