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MRA-RTU-1i Options

Enter your configuration options to submit a Request for a Quote or a CAD drawing:

Shaft Type

Drive Shaft Location

Normal Drive shaft diagram

Travels (in 25mm increments)

Please Give Me Options For:

Part Number As Configured


Gearbox: None
Motor Mount: None
T-Slot Sensor: None
Mounting Kit: None

About the Product


  • Reliable 7th axis motion for articulated robots.
  • Specific Designed RTU for Inverted Applications.
  • Cart designed for the exact make and model of robot used.
  • User defined Strokes.
  • Mounting flexibility in any orientation.
  • Extruded aluminum actuator body with T-slots for ease of mounting.
  • Easy to adjust belt tensioner.
  • One piece machined and stress proof shafted pulley.
  • Zero backlash belt to pulley design.
  • Corrosion resistant components.
  • Washdown Duty or Water- Resistant Options upon request.
  • Integrated cable management.
  • Suggested for use with the following Robots:
    • Yaskawa HC10, GP7, and GP8
    • Fanuc LR mate and CR series
    • Kuka KR3, R Agilus series
    • Universal Robot family


  • Each RTU can be supplied with the following items upon request, T-slot sensors, Gearboxes, or Motor mounting adaptors.
  • For Travel requirements over Standard values contact Macron Dynamics for assistance.


Motion Inverted
Max Speed - Horizontal[Vertical] - mm/sec 3000[3000]
Max Load - Horizontal[Vertical] - lbs 1000[1000]
Repeatability - mm +/- 0.025
Moment Load - in-lbs[Nm] 4400[497]
Positional Accuracy - mm/meter +/- 0.4
Acceleration Max - Gs 1
Recommended Belt Running Load - lbf[N] 437[1945]
Cart Guide Linear bearing with profile rail
System Weight - kg See Data Sheet
Motor Sizing Information
Weight of Cart - lbs[kgs] See Data Sheet
Weight of Belt - kgs based on travel selected See Data Sheet
Travel per Revolution - mm See Data Sheet
Pulley Pitch Diameter - mm See Data Sheet
Pulley Material / Width - mm See Data Sheet
Breakaway Torque - oz-in 30 to 32
Coefficient of Friction 0.1
Travels (25mm increment)
Standard Travels - min to max 150 to 5725

User Guides

MRA-RTU-1I Datasheet


Gearbox Installation graphic
Gearbox Install


User Guide Maintenance



Item # 397, Torque Wrench 25-250 lbs-in