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Thomson Motorized Lead Screws

Motorized Lead Screws from Thomson combine a hybrid stepper motor and a precision lead screw together in one compact envelope. Patent-pending Taper-Lock technology allows quick decoupling and secure, properly aligned connections. Thomson Motorized Lead Screws come in two basic configurations – rotating screw (S) and rotating nut (N). Rotating screw assemblies actuate by having the motor rotate a lead screw and translate a load that is attached to the lead nut. Rotating nut assemblies actuate by rotating a nut within the motor body. Motion is achieved by constraining the motor and translating a load attached to the lead screw or constraining the lead screw and translating a load attached to the motor.

View Thomson's Motorized Lead Screw Webinar Recording >


Motorized Lead Screw Specifications (Metric Units):

Linear Travel /
Full Step (mm) 
Type / Screw Diameter (mm)
ML11 ML14 ML17 ML23
4 6 6 8 10
0.005 1.00  X X X
0.010 2.00   X X
0.015 3.00     X
0.020 4.00 X X
0.025 5.00   X
0.030 6.00 X X
0.040 8.00 X X  
0.050 10.0   X
0.060 12.0 X X X  
0.100 20.0   X X

Motorized Lead Screw Specifications (Inch Units):

Linear Travel /
Full Step (inch)
Type / Screw Diamter (Inch)
ML11 ML14 ML17 ML23
 0.188 0.250 0.250 0.313 0.375
0.00015625 0.0313   X  X    
0.00025000 0.0500  X        
0.00031250 0.0625    X  X    X
0.00041670 0.0833        X  
0.00050000 0.1000  X        X
0.00062500 0.1250    X  X    
0.00083300 0.1666        X  X
0.00100000 0.2000  X        
0.00125000 0.2500    X  X  X  X
0.00200000 0.4000  X        
0.00250000 0.5000    X  X  X  X
0.00375000 0.7500    X  X    
0.00500000 1.0000        X  X

Motorized Lead Screw Highlights

  • Increased Torque Density
  • Improved Efficiency
  • Rotating Screw or Rotating Nut
  • Custom Sizes/Leads Available
  • Taper Lock Advantage
  • Reduced Noise
  • Inch or Metric Versions

Application Examples

  • Medical Devices
  • X-Y Stages
  • 3D Printing
  • HVAC Control Valves
  • Pipetting Devices
  • CNC Machines
  • Fluid/Syringe Pumps



CAD Models

  • Configurable 2D/3D Partstream Models
  • Configurable 2D/3D Solidcomponents Models
  • Configurable 2D/3D PartServer Models
  • Static 2D/3D Model file downloads

NOTE: Please use Internet Explorer 11, Edge, Firefox, or Google Chrome with Edrawings Viewer

Partstream Interactive Viewer Instructions:
1) Select a product from the table below and Configure your model to the right of the viewer that appears.
2) Click the Create button at the bottom of the configurator and wait for model to load (may take a few minutes).
3) Click the Download tab and login to your account if requested (or register as a first-time user).
4) Select a format, wait for the file to be created (may take a few minutes), and click the Download button.

Lead Screws (Motorized) 2D/3D Interactive Models
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