MDA Precision TN4
TN4 DimensionsMDA Precision TN4 Trunnion mounted on V8 1MDA Precision TN4 CNC Trunnion Table 1MDA Precision TN4 Trunnion Table mounted on TN5-V8-TC8

TN4 Trunnion Table


  • Zero backlash
  • Maintenance Free Harmonic Reducers
  • Crossroller Bearings
  • Aluminum and Stainless Steel Construction
  • Sealed Rotary Axes
  • Integrated Homing Switches

Model # Description Price Qty
TN4S CNC Trunnion with Brushless Servo Motors
  • Brushless Servo Motors
  • High Quality Harmonic Reducers
  • Homing Switches
  • Aluminum and Stainless Steel Construction
  • 120mm Flange


Fourth and Fifth Axis Trunnion Table


The TN4 Trunnion Table is a very compact yet rigid device offering rapid, zero backlash rotary motion using maintenance free Harmonic Reducers and Crossroller bearings. It is engineered and built here in California with all aluminum and stainless steel construction. This 2-Axis Trunnion is primary designed for machining applications and can be purchased as part of a complete 5 axis mill or as a retrofit to one of our existing 3 axis cnc mills. Both rotary axes are sealed to allow for operation with liquid coolant. Homing Switches are integrated into each axis to provide a repeatable reference point.

This trunnion table can also be used for non-machining applications such as dispensing and 2-Axis rotary positioning for sensor calibration. Call use today to discuss your custom application!

Click here to view TN4 DIMENSIONS

Please Click on the Specifications Tab for more info


If you would like to discuss your 5-Axis CNC Mill application with us please give us a call and we will be happy to help you determine which of our Small 5-axis CNC Mill is best for you.

If you have any questions please call us at (408) 847-7796 or EMAIL US.

TN4 Trunnion Table Specifications

  • Runout Max
  • Backlash
  • Max Speed 4th axis
  • Max Speed 5th axis
  • Accuracy 4th axis
  • Accuracy 5th axis
  • Repeatability 4th axis
  • Repeatability 5th axis
  • Resolution
  • Duty Cycle Full/Low Speed
  • Motor Type
  • Homing
  • Limits
  • Travel
  • B axis Output Flange Diameter
  • 0.0005 in [0.013mm]
  • Zero Backlash
  • 15 RPM
  • 15 RPM
  • ± 1 arc-min
  • ± 1 arc-min
  • 20 arc-sec
  • 20 arc-sec
  • 0.002°
  • 50% / 100%
  • Brushless Servo
  • A axis, B axis
  • +A, -A
  • A axis:+120° to -105°, B axis: ±infinity
  • 4.72in, [120mm]

Click here to view TN4 DIMENSIONS