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Dovetail Optical Rails


  • Dovetail Rails Designed for Our Snap-On Carriers
  • Stock Lengths from 3" to 24"
    (Metric Lengths: 75 - 600 mm)

RLA0300

RLA2400

RLA075/M

Metric Indicator
Next to Counterbore

Laser-Engraved Scale

Counterbored 1/4" (M6)
Slots and Holes

Related Items

RLA Dovetail Rail Accessories
Dovetail Rails Dovetail Rail Carriers Dovetail Rail Mounting
Rails Rail Carriers Mounting
Dovetail Rail 

Application
Click to Enlarge

RC1 and RC3 rail carriers and a DT12 miniature dovetail stage mounted on a dovetail rail.

Features

  • Dovetail Design Accommodates Our Snap-On Rail Carriers
  • Compact Profile: 0.38" x 0.75" (9.5 mm x 19.1 mm)
  • Stock Lengths Range from 3" to 24" (Metric Lengths: 75 - 600 mm)
  • Laser-Engraved Scale for Precise Construction
  • Ends 8-32 (M4) Tapped

Thorlabs' RLA Optical Rails are our smallest option for building stable, rigid mechanical assemblies. They consist of extruded lengths of aluminum with a dovetail mounting surface that accommodates our snap-on rail carriers. Objects are easily slid along this dovetail before being secured. These rails measure only 0.75" (19.1 mm) wide and are available from stock in lengths ranging from 3" - 24" (metric lengths: 75 - 600 mm).

These dovetail rails offer numerous 1/4" (M6) counterbored holes for mounting flexibility. The end of each rail is 8-32 (M4) tapped for vertical mounting. Rails 12" (300 mm) and longer offer mounting slots to provide additional mounting options. As shown in the image at the top of the page, the rails are laser engraved with graduations every 1.0 mm and labels every 10.0 mm for precise placement of optomechanical hardware.

Thorlabs' product family for RLA dovetail rails includes our snap-on carriers as well as mounting accessories. Together with spacer sets and table clamps that allow the rails to be mounted both horizontally and vertically, these tools provide a complete family of rigid, versatile buliding blocks suited for virtually any optomechanical setup.

Click the Support Documentation icon document icon or Part Number below to view the available support documentation
Part Number Product Description
RLA0300 Support Documentation RLA0300 : Dovetail Optical Rail, 3", Imperial
RLA0600 Support Documentation RLA0600 : Dovetail Optical Rail, 6", Imperial
RLA075/M Support Documentation RLA075/M : Dovetail Optical Rail, 75 mm, Metric
RLA1200 Support Documentation RLA1200 : Dovetail Optical Rail, 12", Imperial
RLA150/M Support Documentation RLA150/M : Dovetail Optical Rail, 150 mm, Metric
Part Number Product Description
RLA1800 Support Documentation RLA1800 : Dovetail Optical Rail, 18", Imperial
RLA2400 Support Documentation RLA2400 : Dovetail Optical Rail, 24", Imperial
RLA300/M Support Documentation RLA300/M : Dovetail Optical Rail, 300 mm, Metric
RLA450/M Support Documentation RLA450/M : Dovetail Optical Rail, 450 mm, Metric
RLA600/M Support Documentation RLA600/M : Dovetail Optical Rail, 600 mm, Metric

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Posted Comments:
Poster: jlow
Posted Date: 2014-04-17 10:43:59.0
Response from Jeremy at Thorlabs: We do not currently have a rail joiner for this. There are tapped holes on both ends of this and there's not really a good way to ensure good alignment when two rails tighten against each other. You can bolt one piece to the table and then adjust the position of the 2nd one until a rail carrier slides somewhat smoothly between the two. We can also offer the rails in longer lengths but without features like slots, holes, and anodization.
Poster: LNicoletti
Posted Date: 2014-04-14 18:29:36.723
Good morning, I have a question on product RLA600/M. is it possible to attach two of them in order to make a 1200mm length? thank you in advance Luisa Nicoletti
Poster: gyg2101
Posted Date: 2013-09-04 11:01:06.24
Hi, I would like to automate a system based on your dovetail rails. Is there any way to "motorize" the rail carriers? I would need a couple of inches of computer-controlled motion. guy
Poster: jlow
Posted Date: 2013-09-10 15:32:00.0
Response from Jeremy at Thorlabs: Unfortunately we do not have an easy way to motorized the dovetail optical rail carrier at this moment. You could possibly put a motorized stage on top of the rail, but that better on the 66mm rail than the RLA dovetail rails. I will get in contact with you directly to discuss about your application.
Poster: tcohen
Posted Date: 2012-02-22 17:15:00.0
Response from Tim at Thorlabs to Jiabin: Thank you for your interest in our dovetail optical rails. Unfortunately, we are currently unable to provide longer lengths than 600mm for this series. As an alternative, we are able to offer the XE25-CUSTRAIL/M up to 2000mm. We have contacted you with more information.
Poster: jiabin.tuo
Posted Date: 2012-02-20 11:54:52.0
I would like to buy a Dovetail Optical Rail for my test, I am wondering can I custom the length to 2000mm? Thank you for your time. Regards, Jiabin
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alignment rail   construction rail   dovetail rail   mounting rail   optical alignment rail   optical construction   optical rail   optical rails   optics rails   rail   slotted rail  

Dovetail Optical Rails

Dovetail Rail Cross Section
Click to Enlarge
A cross-sectional view of the dovetail rails.
  • Our Smallest Optical Rails for Compact Construction
  • 8-32 (M4 x 0.7) Tapped Holes on Both Ends
  • Compatible With Our Snap-On Rail Carriers
  • Engraved Scale for Precision Alignment of Optical Elements

Our Dovetail Optical Rails are designed for the construction of stable one-dimensional assemblies. Objects can be secured in place anywhere along the dovetail mounting surface. The rail ends are tapped with 8-32 (M4 x 0.7) holes for compatibility with standard optomechanics.

These rails are offered from stock in lengths ranging from 3" to 24" (75 mm to 600 mm). They have engraved graduations every 1.0 mm and labels every 10.0 mm. These rails can easily be clamped to an optical table or breadboard using our CL6 table clamps, and are extremely compact.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
RLA0300 Support Documentation
RLA0300 Dovetail Optical Rail, 3", Imperial
$27.00
Today
RLA0600 Support Documentation
RLA0600 Dovetail Optical Rail, 6", Imperial
$40.00
Today
RLA1200 Support Documentation
RLA1200 Dovetail Optical Rail, 12", Imperial
$71.00
Today
RLA1800 Support Documentation
RLA1800 Dovetail Optical Rail, 18", Imperial
$106.00
Today
RLA2400 Support Documentation
RLA2400 Dovetail Optical Rail, 24", Imperial
$140.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
RLA075/M Support Documentation
RLA075/M Dovetail Optical Rail, 75 mm, Metric
$27.00
Today
RLA150/M Support Documentation
RLA150/M Dovetail Optical Rail, 150 mm, Metric
$40.00
Today
RLA300/M Support Documentation
RLA300/M Dovetail Optical Rail, 300 mm, Metric
$71.00
Today
RLA450/M Support Documentation
RLA450/M Dovetail Optical Rail, 450 mm, Metric
$106.00
Today
RLA600/M Support Documentation
RLA600/M Dovetail Optical Rail, 600 mm, Metric
$140.00
Today
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