Miniature Linear Actuator, 28 mm travel, RS-232 plus manual control

T-LA28A

Part Number Controller Power Supply Accessories Leadtime Price (USD)
T-LA28A-KT01 Built-In North America, 15 V, 0.4 A Included 3-5 Days $920.00
T-LA28A-KT03 Built-In International, 15 V, 1.2 A Included 3-5 Days $920.00
T-LA28A-KT04 Built-In North America, 15 V, 2.6 Included 3-5 Days $950.00
T-LA28A Built-In Not Included Not Included 3-5 Days $890.00
Miniature Linear Actuator, 28 mm travel, RS-232 plus manual control

Miniature Linear Actuator, 28 mm travel, RS-232 plus manual control

Specification (click for definition) Value Alternate Unit
Microstep Size (Default Resolution) 0.09921875 µm
Integrated Controller Yes
Travel Range 28 mm 1.102 "
Accuracy +/- 12 µm +/- 0.000472 "
Repeatability < 1 µm < 0.000039 "
Backlash < 6 µm < 0.000236 "
Maximum Speed 4 mm/s 0.157 "/s
Minimum Speed .0009302 mm/s 0.00004 "/s
Speed Resolution .0009302 mm/s 0.00004 "/s
Encoder Type None
Peak Thrust 25 N 5.6 lb
Maximum Continuous Thrust 15 N 3.4 lb
Maximum Current Draw 300
Power Supply 12-16 VDC
Power Plug 2.1 mm center positive
Motor Temperature Rise 75 degrees C
Linear Motion Per Motor Rev 0.3048 mm 0.012 "
Motor Steps Per Rev 48
Motor Type Stepper (2 phase)
Inductance 55 mH
Default Resolution 1/64 of a step
Data Cable Connection Minidin 6
Mechanical Drive System Precision leadscrew
Limit or Home Sensing Magnetic home sensor
Manual Control Yes
Axes of Motion 1
LED Indicators Yes
Mounting Interface 3/8-32 nut or 3/8" shank
Vacuum Compatible No
Operating Temperature Range 0 to 50 degrees C
RoHS Compliant Yes
CE Compliant Yes
Weight 0.14 kg

Specification Charts and Notes

  1. When powering multiple units from an unregulated power supply such as our PS12V, the voltage and thus the available thrust will be reduced. To achieve the thrust specified above, each unit should have its own power supply.
  2. The suffix "S" designates a short unit. Manual control and LED indicators have been sacrificed on these units in favour of reduced length. All other specifications are identical to the standard unit.
  3. T-LA actuators don't require hold current to maintain their position.
  4. Thrust is a function of speed. The values given are typical maximums. See performance curves below for more details.
  5. The T-LA is more delicate and has a limited lifetime compared to the T-NA08. See the image below for a lifetime vs thrust comparison.
Motorized Actuator Thrust vs. Speed curve Motorized Acutator Load vs. Lifetime curve

Note that the failure mode of T-LA devices is grease contamination by wear particles which effectively clog the lead nut, although the leadscrew and leadnut remain in healthy condition. Extending the leadscrew, cleaning it, and regreasing it with a silicon based grease effectively solves the problem; however, this may not be feasible in all applications. For more detailed information please consult the Instruction Manual and/or the Technical Notes.


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