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150 mm Linear Translation Stage, Stepper Motor

  • Stackable in XY, XZ, and XYZ Configurations
  • Typical Calibrated On-Axis Accuracy of 2.0 µm
  • Horizontal Load Capacity of 20 kg (44 lbs)



Right-Angle Bracket

Application Idea

Three NRT150 Stages
in XYZ Configuration,
Using an NRT150P1
Right-Angle Adapter

Related Items

Please Wait
Key Specificationsa
Travel Range 150 mm (5.9")
Velocity (Max)b 30 mm/s
Minimum Achievable Incremental Movement 0.1 µm
On-Axis Accuracyc 2.0 µm (Typical)
5.0 µm (Max)
Bidirectional Repeatabilityd 1 µm
Backlashe <3 µm
Horizontal Load Capacity (Max) 20 kg (44 lbs)
Vertical Load Capacity (Max) 5 kg (11 lbs)
Actuator Type Stepper Motor
Cable Length 3.0 m (9.8 ft)
Recommended Controller APT™ Benchtop Stepper
Motor Controllers
  • Please see the Specs tab for a complete specifications list.
  • Measured Using Thorlabs Benchtop Stepper Motor Controllers
  • Using Included Calibration Files
  • The average of the repeatability when a set position is approached from both directions.
  • When a stage is moved to a position and then returned to its original position, some motion is lost due to the lead screw mechanism. This loss is known as backlash.


  • 150 mm Travel Range
  • Load Capacity
    • Horizontal: 20 kg (44 lbs)
    • Vertical: 5 kg (11 lbs)
  • Maximum Velocity of 30 mm/s
  • Bidirectional Repeatability of 1 µm
  • XY, XZ, and XYZ Configurable
  • 1/4"-20 (M6) Tapped Holes for Mounting Standard Optomechanics

Thorlabs' NRT150(/M) Linear Positioning Stage is optimized for applications requiring high load capacity and high resolution, such as measurement and inspection. It provides 150 mm of linear travel for loads as great as 20 kg (44 lbs) when mounted horizontally and 5 kg (11 lbs) when mounted vertically. Each stage features a typical on-axis accuracy of 2.0 µm (5.0 µm Max) when the included calibration files are used with the APT™ software. The lead screw, directly driven by a two-phase stepper motor with 409,600 microsteps per revolution, provides smooth translation with a theoretical positional resolution of less than 100 nm. Due to the stepper motor design, the platform position remains fixed when no power is supplied to the stage, unlike with DC servo motor translation stages.

The main platform is supported by four recirculating ball carrier bearings mounted to precisely aligned linear guide rails. The stepper motor, specifically designed for microstepping applications, allows smaller and smoother low-speed motion with significantly reduced vibrational noise than DC servo motors. The choice of a trapezoidal lead screw provides a number of benefits over the more common Acme-style thread, including improved durability, lower friction due to improved surface quality, and very little backdrive, eliminating the need for the braking mechanism required with ball screws.

Calibration Files
Each NRT150(/M) Linear Translation Stage is calibrated during manufacturing. Calibration enables the controller to correct for any mechanical errors present in the system. Mechanical components, such as the lead screw and linkages, can be machined only within a certain tolerance. These mechanical errors result in deviations of the actual position from the commanded position. However, the deviations are repeatable and can be compensated for using the APT software and included calibration files. These files are used by the APT software to convert the position entered by the user into the required mechanical motion. The calibration files can be downloaded by clicking on the red Docs icon () next to the item # below and entering your device's serial number under "Download Calibration Data."

The use of calibration files is optional. Without installing a calibration file, the on-axis accuracy of a stage will fall from 2.0 µm (typical) to 19.29 µm (typical). Calibration files do not affect the repeatability and resolution of the stages.

Stage Combinations
If an XY configuration is desired, any combination of NRT150 and NRT100 Linear Positioning Stages (the latter features a 100 mm travel range) can be mounted directly atop one another by using 1/4"-20 (M6) cap screws together with the provided counterbored holes and slots. These counterbores are accessed through the Ø0.59" (Ø15.0 mm) clearance hole in the moving carriage. XZ and XYZ configurations are possible using our NRT150P1(/M) Vertical Mounting Bracket, which orients either an NRT100 or NRT150 in the vertical plane.

Controller Options
A Thorlabs benchtop stepper motor controller, available in one-, two-, or three-channel versions, is required to drive this 150 mm translation stage. These controllers are bundled with Thorlabs' apt™ software, which supplies out-of-the-box stage control from a PC and enables support for common programming interfaces like LabVIEW, LabWindows™, and ActiveX. This stage is also compatible with third-party controllers.

Item # NRT150(/M)
Travel Range 150 mm (5.9")
Bidirectional Repeatabilitya 1 µm
Backlashb <3 µm
Maximum Velocityc 30 mm/s
Velocity Stability ±0.1 mm/s
Maximum Accelerationc 30 mm/s2
Minimum Achievable Incremental Movementd 0.10 µm
Minimum Repeatable Incremental Movemente 2 µm
Calibrated Absolute On-Axis Accuracy 2.0 µm (Typical)
5.0 µm (Max)
Absolute On-Axis Accuracyf 19.29 µm
Maximum Percentage Accuracyg 0.09%
Home Location Accuracy ±0.6 µm
Pitch <0.008° (140 µrad)
Yaw <0.05° (873 µrad)
Load Capacity
Horizontal Load Capacity <12 kg (26 lbs) (Recommended)
20 kg (44 lbs) (Max)
Vertical Load Capacity <4 kg (9 lbs) (Recommended)
5 kg (11 lbs) (Max)
Weight 2.5 kg (5.5 lbs)
Dimensions 412.9 mm x 100.0 mm x 43.5 mm
(16.30" x 3.94" x 1.71")
  • The average of the repeatability when a set position is approached from both directions.
  • When a stage is moved to a position and then returned to its original position, some motion is lost due to the lead screw mechanism. This loss is known as backlash.
  • Measured Using Thorlabs Benchtop Stepper Motor Controllers.
  • The measured minimum incremental motion that the stage can achieve, also referred to as the minimum step size.
  • The minimum incremental motion that the stage can repeatedly achieve within its standard error.
  • Accuracy when calibration files are not used. Calibration files are measured at the factory and are available for download by clicking on the red Docs icon () below.
  • This is the maximum discrepancy between commanded position and absolute position expressed as a percentage of the commanded position.

Motor Pin Out

D-type Male

DB15 Male

1Limit Switch Ground9Not Connected
2O/P Positive (End) Limit Switch10Not Connected
3O/P Negative (Home) Limit Switch11Not Connected
4PH B -ve12Not Connected
5PH B +ve13Limit Switch +5 V
6PH A -ve14Not Connected
7PH A +ve15Ground/Earth
8Not Connected

The APT™ (Advanced Positioning Technology) family covers a wide range of motion controllers ranging from small, low-powered, single-channel drivers (such as the T-Cubes) to high-power, multi-channel, modular 19" rack nanopositioning systems (the APT Rack System).

All controllers in the APT family share a common software platform, the 'APT System Software', which is available on our APT software download page. A support package, containing a wealth of information on using and programming these Thorlabs products is also available.

By providing this common software platform, Thorlabs has ensured that users can easily mix and match any of the APT controllers in a single application, while only having to learn a single set of software tools. In this way, it is perfectly feasible to combine any of the controllers from the low-powered, single-axis to the high-powered, multi-axis systems and control all from a single, PC-based unified software interface.

The APT System Software allows two methods of usage: graphical user interface (GUI) utilities for direct interaction and control of the controllers 'out of the box', and a set of programming interfaces that allow custom-integrated positioning and alignment solutions to be easily programmed in the development language of choice.

A range of video tutorials are available to help explain our APT system software. These tutorials provide an overview of the software and the APT Config utility. Additionally, a tutorial video is available to explain how to select simulator mode within the software, which allows the user to experiment with the software without a controller connected. Please select the APT Tutorials tab above to view these videos, which are also available on the software cd included with the controllers.


APT Version 3.21.4

Includes a GUI for control of Thorlabs' APT™ system controllers, as well as a wealth of support information in the form of handbooks, help files, tutorial videos, and FAQs.

Also Available:

  • Communications Protocol
Software Download
APT GUI Screen

Posted Comments:
pearsonmr  (posted 2018-01-24 13:01:53.227)
Hi, We already have an installed NRT150/M stage, and we are planning to wire it to a 3rd party controller. Can you tell me what the normal state of the active limit switches are when powered by the 5V? Normally open or normally closed? Thanks, Matthew
bwood  (posted 2018-02-05 05:25:32.0)
Response from Ben at Thorlabs: Thank you for your feedback. The limit switches are in a open collector and have a pull up on the stage. When the limit switch is activated the output pulls down to ground. When the limit switch is not activated the limit switch output is at 5volts. Looking at a BSC201 with this stage connected the limit switches are set to ‘switch makes’ so you can argue they are normally open and go closed on active
wenzel.jakob  (posted 2017-12-11 23:43:24.29)
How could a rigid stand (MP100) be mounted to this stage? I assume this will require some kind of intermediate adapter, as the counterbores of the MP100 have a 3x2" layout, while the NRT150 has a 2x2" moving surface)
AManickavasagam  (posted 2017-12-15 10:11:13.0)
Response from Arunthathi at Thorlabs: Thank you for your query.Unfortunately, the NRT150/M's plate is not large enough to mount MP100. However, you could use the LTS150/M which also is a stepper motor based stage and will have similar performance as the NRT150/M.
user  (posted 2016-11-22 20:57:48.5)
Bad quality and stops working often.
bhallewell  (posted 2016-11-25 08:47:42.0)
Response from Ben at Thorlabs: I'm sorry to hear of the bad experience you've had with this product. Please could you contact your local Tech Support office so that we can get in touch with you to troubleshoot the problems you're facing with the stage & provide you with a solution?
asnl2  (posted 2014-06-16 11:39:02.003)
Hi, We have recently purchased a LTS150/M. However, I have some problems installing the calibration file. When I enter the APT Config the stage does not show up under the Stage Tab and rather than the 'stepper' dropdown selection box as described in the manual I have a 'motor' drop down box. When I try to assign a calibration file (motor set to none) I get the error message "Stage type selected is not compatible with selected driver. Please select stage type not prefixed by LTS or HTS LTS". I would greatly appreciate any help. Best, Anna
bhallewell  (posted 2014-06-18 07:55:15.0)
Response from Ben at Thorlabs: Thank you for your feedback. I will contact you directly to troubleshoot this process with you.
jaboonfamily1  (posted 2013-10-15 16:20:40.303)
Hi, I am interested in the NRT 150 but I'm not sure I read the specs correctly. The displacement error once calibrated is "Calibrated Absolute On-axis Accuracy" and is around 2 microns right ? Isn't that weird that the minimum displacement is 0,1 micron then ? As for the velocity, "Velocity Stability ±0.1 mm/sec" means 0,1 mm/s is the slowest reliable velocity I can set ? Thank you.
msoulby  (posted 2013-10-17 12:25:00.0)
Response from Mike at Thorlabs: I will try to clarify what the specifications mean. Minimum incremental motion: This is the actual minimum incremental motion that a stage can make, otherwise known as the minimum step size. This is calculated based on the minimum step size of a motor and the gearing in the stage. Typically the theoretical step size is smaller than actual achievable step size as there are several other factors such as friction, load, external forces, vibrations, type of controller and inertia. This has nothing to do with how accurate the stage is only what the smallest repeatable step size we can achieve is. On axis accuracy: This is the absolute accuracy of the commanded position. It is defined as the maximum discrepancy between command position and absolute position over the full travel of the stage and should not be confused with repeatability. For example if a stage is specified with an on axis accuracy of 2µm then a command to travel to 10mm will result in an absolute position of within 2um of 10mm. This value will tell you the maximum possible inaccuracy at any point in your travel. However, sometimes a more useful specification can be maximum percentage accuracy as the discrepancy between command position and absolute position generally increases linearly with the amount of travel. This gives rise to an on axis accuracy which is generally much less than the accuracy at the beginning of the travel of the stage. The percentage accuracy can give you a good idea of what to typically expect along the stages travel. The velocity stability was measured when the stage is moving at the maximum velocity and we will clarify this on the website, therefore this means that the maximum velocity is 30.0mm/s +/-0.1mm/s. the lowest velocity that can be entered for these stepper motors is around 40um/s which is limited by the controller code and software. You should also note that as these stages use a two phase stepper motor then low velocities could result in a jumpy, unstable velocity as the motor rotates and switches between each motor phase. For a more stable velocity you would need to use a 5 phase stepper motor, which thorlabs does not currently offer, or one of our direct drive linear stages such as the Thorlabs DDS220.
bdada  (posted 2011-07-29 11:13:00.0)
Response from Buki at Thorlabs: I am sorry to hear about the issue you are having with the NRT150 motorized stage. We have contacted you to find out which controller you are using and to troubleshoot this matter further.
vladimirlee  (posted 2011-07-29 00:01:25.0)
Our NRT150 keeps showing that it reaches forward hardware limit no matter where it is. How to fix that?
jjurado  (posted 2011-07-06 15:43:00.0)
Response from Javier at Thorlabs to fg2251: Thank you very much for contacting us. We are currently developing an optical delay line kit which will be released later this month. This kit includes a 220 mm direct travel stage (DDS220, link below), a DC Servo controller, control software and extended programming through ActiveX controls, and all opto-mechanics including the periscope assembly. The minimum incremental motion is 0.1 um for your 100 fs delays. The pitch gives you the angular runout. For the DDS220 stage, 0.01 degree pitch will give you at least a 30um displacement. DDS220 and BBD101: We will contact you directly for further support.
fg2251  (posted 2011-07-05 21:04:25.0)
I am interested to the 150mm linear stage NRT150 My application is to build a delay line in a fs pump probe experiment. My pulse duration is 100fs so I need a minimum motion on the order of 15micron I need to delay the pump beam that after the delay line will be focused on spot of 50-500micron, so the angular as well linear deviation from straight line motion is critical for me. I want some information: Absolute on axis accuracy is 20micron. Is it referred to a motion of 150mm? How much the cost will be with the calibration? What about the linear and angular runout? Is it the pitch and Yaw? Do you have other suggestion for my application? Can you provide the stepper controller with labview software for integration on my setup (lock in amplifier, DAC..)? Let me know Felice
jjessop  (posted 2009-11-30 11:00:12.0)
A response from Jonathan to cjc16: Im afraid we wont be able to offer this. You could try doing this work youself, but the hall effect switchs are set to give the correct position.
cjc16  (posted 2009-11-16 13:17:41.0)
I have purchased an NRT150 and I am in the process of wiring it to be compatible with our drive system. I found that you are using proximity switches that require 5v power but we typically use NC mechanical switches with our hardware. Do you have an option to retrofit mechanical switches in place of the proximity switches?
klee  (posted 2009-09-14 17:18:57.0)
A response from Ken at Thorlabs to jbotha: The bearing can take 18.7Nm moment in x (longitudinal, direction of travel) and 18.7Nm in y. There are two, so the shift of where the moment is actually pulling is quite complicated but it should be fine as you wont get a 90/10 split in how the load is distributed. Becuase of the unusal angle of the force on the lead screw you might have to reduce velocities but it should be fine.
jbotha  (posted 2009-09-03 04:26:00.0)
Hi, Very much interested in you NRT150-product. I do have the following question which will determine whether or not this product is suitable for our application which I could not find among your specifications listed: What is the maximum permissible moment allowed on the sliding table of the NRT150? The application we want to bolt on to the sliding table has an offset center of gravity which will exert a maximum of 20 Nm around the longitudinal axis and 10 Nm around the transverse axis. Thank you in advance for your assistance! Kind regards, Jan Botha
Tyler  (posted 2008-06-13 08:22:24.0)
A response from Tyler at Thorlabs to Ian: In an effort to keep our drawings uncluttered enough to be readable we only display a limited number of dimensions. If the dimension you are looking for is not displayed you can contact an applications engineer at Thorlabs or load the ParaSolid, eDrawing, or Step file and measure the dimension using the softwares measurement tool. eDrawings is a free web browser download that can be used to view the ParaSolid and eDrawing files. I will have an applications engineer contact you to avoid confusion and make sure that you are getting the dimension that you have requested. Thank you for your interest in our translation stage.
ian.mills2  (posted 2008-06-11 10:18:54.0)
Is the carriage shown 75mm from the central position on the drawing? There are no dimensions from the carriage to the end of the stage. It would be helpful to know where the limits are.
cjohns  (posted 2007-09-17 12:28:39.0)
I see that there is a picture of the NST150 above, yet the part comes up in the search as superseeded.

150 mm Linear Translation Stage, Stepper Motor

Thorlabs' NRT150(/M) stage provides 150 mm of travel with an integrated stepper motor. Optomechanics can be directly mounted to the moving platform using eight 1/4"-20 (M6) tapped holes, which are spaced 1.0" (25.0 mm) apart.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
NRT150 Support Documentation
NRT150150 mm Motorized Linear Translation Stage, Stepper Motor, 1/4"-20 Taps
+1 Qty Docs Part Number - Metric Price Available
NRT150/M Support Documentation
NRT150/M150 mm Motorized Linear Translation Stage, Stepper Motor, M6 Taps
Lead Time

Right-Angle Bracket for NRT Translation Stages

Click to Enlarge

XYZ assembly constructed using the NRT150P1 Right-Angle Bracket and three NRT150 translation stages.

Click to Enlarge

NRT150 Stage Mounted Vertically Directly to Breadboard
  • For Constructing XZ and XYZ Stage Assemblies
  • Attaches Directly to an Optical Table for Applications Requiring One Axis of Vertical Translation

The NRT150P1(/M) is an anodized aluminum right-angle bracket that orients an NRT150(/M) or NRT100(/M) translation stage in the vertical axis. This allows for the construction of XZ and XYZ translation stage arrangements (XYZ option shown to the right). Alternatively, the NRT150P1 can be directly attached to an optical table for applications that require one axis of vertical translation (shown to the right).

The base of the NRT150P1(/M) contains six counterbored holes for 1/4"-20 (M6) cap screws, while its side has two 1/4"-20 (M6) tapped holes. The two side taps are designed to accept the vertically mounted stage.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
NRT150P1 Support Documentation
NRT150P1Right-Angle Bracket for NRT Translation Stages, 1/4"-20 Taps
+1 Qty Docs Part Number - Metric Price Available
NRT150P1/M Support Documentation
NRT150P1/MRight-Angle Bracket for NRT Translation Stages, M6 Taps

Replacement Cables

  • Replacement Motor Drive Cables
  • Available Lengths: 1 m (3.3') and 3 m (9.9')

These motor cables are sold as replacements in case of loss or damage to the PAA613 Motor Drive Cable that is included with our NRT Series Translation Stages. They are also compatible with our stepper motor actuators. The male end connects to the controller and the female end connects to the motor.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PAA612 Support Documentation
PAA612APT Stepper Motor Cable, DA15 Male to DE15 Female, 1 m
PAA613 Support Documentation
PAA613APT Stepper Motor Cable, DA15 Male to DE15 Female, 3 m
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