Compact Quick Connect Platforms for 2" Rails and Stages


  • Contains Array of Tapped Holes, Counterbored Holes, and Slots
  • Quickly Build Subassemblies for XRN Components
  • Provides Coarse Translation Along Rail or Stage

XRN25-RC1

XRN25-RC2

XRN25-RC3

XRN25-RP1

XRN-R1

Application Idea

Rail carriers can quickly attach post assemblies to dovetailed components.

Related Items


Please Wait

Features

  • Inner Dovetail Compatible with 2" Dovetail Accessories
  • Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs
  • Mount Subassemblies to XRN Components Without Access to Ends
  • Slides Along Outer Male Dovetail Prior to Lockdown
  • Variety of Form Factors Available
    • Rail Carriers: Removable Plates with Additional Mounting Options
    • Rail Plate: Deck Height Matches XR25 and XR50 Series Stages
    • Rotation Adapter: Coarse Rotation Between Components

Thorlabs XRN Platforms are designed to mount components to our XRN Series 2" dovetails stages and rails. Once attached, these platforms enable optomechanical components to slide to any position along the length of a rail, or to attach to any other component with an XRN dovetail. The surfaces of these platforms are machined from cast tool and jig aluminum for minimal internal stress and improved stability. Their dovetail clamp screw makes them easy to place into any existing rail system without requiring access to the rail ends. These platforms are provided in three varieties: rail carriers, rail plates, and a rotation adapter.

Rail carriers feature a mating female dovetail on the bottom of the plate and a combination of mounting taps, counterbores, or slots on their exterior faces. The XRN25-RP1(/M) rail plate provides many of the same benefits as our rail carriers–a mating female dovetail on the bottom of the plate and mounting taps on the top–with a larger mounting surface and a deck height shared with all XRN linear and rotation stages. The XRN-R1(/M) rotation adapter is made up of a specialized rail carrier and a rotating platform that together share the deck height of the XRN stages and rail plate. The XRN-R1(/M) provides coarse rotational adjustment of its top plate. This top plate can be removed to reveal a Ø1/2" bore and flexure clamp, which can be purchased separately as the XRN-RB(/M).

Additional functionality is provided by a complete line of accessories that include multi-axis assembly kits, rail carriers, a rotation adapter, rails, and micrometer conversion kits. An adapter plate is also available for mounting these compact 25 mm stages with an integrated 2" dovetail onto 25 mm and 50 mm translation stages with a 3" dovetail. For more information about a specific accessory, please click on the link in the table below.

XRN Compact Quick Connect Linear Stages
XRN Stages XRN Platforms
25 mm Travel Linear Stages Rotation Stage Z-Axis Assembly Kits Mounting Platforms
Rail Positioner
Mounting Adapters Positioners Base Plate 2" Dovetail Rails Micrometer Conversion Kits

Posted Comments:
No Comments Posted

Rail Carriers

Compact 25 mm Translation Stage
Click to Enlarge

View of XRN25-RC3 Showing Steel Ball and Clamping Arm
Compact 25 mm Translation Stage
Click to Enlarge

An XRN25-RC3 carrier being used to affix and retain the position of an XRN25-RC2 rail carrier mounted on an XRN25C stage.
  • Each Provides Additional Coarse Translation and Mounting Features
  • XRN25-RC1 and XRN25-RC2 Include Integrated Steel Pads for use with the XRN25-RC3 Hard Stop
  • XRN25-RC3 Carrier Includes Integrated Steel Balls for Use as a Hard Stop
  • Female Dovetail For Quick Installation on Stage's Top Plate
  • Included Dovetail Clamp Screw has Maximum Torque of 15 in•lbs

Thorlabs offers three rail carriers that are directly compatible with our XRN series stages. Each rail carrier provides coarse translation in addition to the fine translation supplied by the stage's micrometer, as well as expanding the stages' threading options for optomechanical assemblies. A female dovetail allows each rail carrier to slide onto an XRN25 series stage and connect to the stage's male dovetail. The position of the carrier can then be locked into place using a clamping arm (3/16" [5 mm] hex) located on one end of the carrier. This simple procedure allows the user to seamlessly swap and install different carriers on an XRN25 stage in a matter of seconds.

Item # XRN25-RC1(/M) XRN25-RC2(/M) XRN25-RC3(/M)
Click Image to Enlarge XRN25 Stage Rail Carrier XRN25 Stage Rail Carrier XRN25 Stage Rail Carrier
Mounting Features #8 (M4) Counterbores (x6)
8-32 (M4 x 0.7) Taps (x7)
1/4" (M6) Counterbore (x1)
1/4" (M6) Counterbored Slot (x1)
8-32 (M4 x 0.7) Taps (x8)
1/4" (M6) Counterbored Slot (x1)
8-32 (M4 x 0.7) Taps (x4)
Additional Features Steel Contact Pad on Two Sides for Use with XRN25-RC3 Carrier Steel Ball on Two Sides for Use as Hard Stop
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
XRN25-RC1 Support Documentation
XRN25-RC1Rail Carrier for Stages with 2" Dovetails, 8-32 Taps and #8 Counterbores
$61.53
Today
XRN25-RC2 Support Documentation
XRN25-RC2Rail Carrier for Stages with 2" Dovetails, 8-32 Taps and 1/4" Counterbores
$58.35
Today
XRN25-RC3 Support Documentation
XRN25-RC3Fixed Stop Rail Carrier for Stages with 2" Dovetails, 8-32 Taps and 1/4" Counterbored Slot
$55.17
Today
+1 Qty Docs Part Number - Metric Price Available
XRN25-RC1/M Support Documentation
XRN25-RC1/MRail Carrier for Stages with 2" Dovetails, M4 x 0.7 Taps and M4 Counterbores
$61.53
Today
XRN25-RC2/M Support Documentation
XRN25-RC2/MRail Carrier for Stages with 2" Dovetails, M4 x 0.7 Taps and M6 Counterbores
$58.35
Today
XRN25-RC3/M Support Documentation
XRN25-RC3/MFixed Stop Rail Carrier for Stages with 2" Dovetails, M4 x 0.7 Taps and M6 Counterbored Slot
$55.17
Today

Rail Plates


Click to Enlarge
Height and Width of XRN25-RP1(/M) Matches XRN Series Stages
  • Same Height and Width Dimensions as XRN Series Stages
  • Fourteen 1/4"-20 (M6 x 1.0) Holes for Mounting, 0.30" (7.6 mm) Deep
  • Compatible with 2" Mating Dovetail
  • Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs

The XRN25-RP1(/M) rail plate enables components to be mounted at the same deck height as the XRN series stages. The matching deck heights allow for transitioning between rail plates and stages without adjusting the Z-axis of the mounted components. The top of the XRN25-RP1(/M) features fourteen 1/4"-20 (M6 x 1.0) tapped blind holes that are 0.30" (7.6 mm) deep. This rail plate's included dovetail clamp screw secures the plate to a 2" dovetail rail and has a maximum torque of 15 in•lbs. Additionally, the 1/4"-20 (M6 x 1.0) counterbore slots located on the sides of the plates allow direct mounting to an optical table or breadboard.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
XRN25-RP1 Support Documentation
XRN25-RP1Rail Plate for 2" Dovetail Rails, 1/4"-20 Taps
$80.00
Today
+1 Qty Docs Part Number - Metric Price Available
XRN25-RP1/M Support Documentation
XRN25-RP1/MRail Plate for 2" Dovetail Rails, M6 x 1.0 Taps
$80.00
Lead Time

Rotation Adapters

XRN-RB Adapter
Click to Enlarge
View Imperial Product List
Item #QtyDescription
XRN25C1Compact 25 mm Travel Linear Translation Stage, End Micrometer, 1/4"-20 Taps
XRN-RB1Rotation Adapter Base Plate for Stages with 2" Dovetails, 1/2" Bore, Imperial
TR31Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 3"
PCM1Post Clamp Mount for Ø1/2" (12.7 mm) Posts (Base Adapter Sold Separately)
PCMP1Flat Base Adapter for PCM(/M) Mount, 1/4"-20 Threaded Stud
PS9111N-BK7 Right-Angle Prism, Uncoated, L = 25 mm
View Metric Product List
Item #QtyDescription
XRN25C/M1Compact 25 mm Travel Linear Translation Stage, End Micrometer, M6 x 1.0 Taps
XRN-RB/M1Rotation Adapter Base Plate for Stages with 2" Dovetails, 12.7 mm Bore, Metric
TR75/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 75 mm
PCM/M1Post Clamp Mount for Ø1/2" (12.7 mm) Posts (Base Adapter Sold Separately)
PCMP/M1Flat Base Adapter for PCM(/M) Mount, M6 Threaded Stud
PS9111N-BK7 Right-Angle Prism, Uncoated, L = 25 mm
The XRN-RB used as a rail carrier for a Ø1/2" Post.
XRN-R1 Rotation AdapterClick to Enlarge
Two XRN25C Stages rotated at an arbitrary angle using the XRN-R1 Rotation Adapter.
XRN-R1 Screws
Click for Details
Side Located Locking Screws for Clamping Adapter (left) and Locking Rotation (right)
  • 360° Coarse Rotation Adjustment
  • Top Plate with 1/4"-20 (M6 x 1.0) and 8-32 (M4 x 0.7) Tapped Holes
  • Base Plate with Ø1/2" Bore and Flexure Clamp
  • Purchase Complete Adapter or Separate Base Plate
  • Compatible with 2" Mating Dovetail Stages
  • Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs

The XRN-R1(/M) Rotation Adapter allows users to mount any two 2" (50.8 mm) dovetail components together on a rotational axis perpendicular to their mounting surfaces. This allows a full 360° range of coarse rotation. The removable top plate features five 1/4"-20 (M6) and four 8-32 (M4) tapped holes in addition to the 2" male dovetails on all edges. Rotation is achieved by loosening the right-most locking screw on the base plate (also sold separately as the XRN-RB) using a 3/16" (5.0 mm) hex key. The adapter is clamped in place to a 2" dovetail with the left-most locking screw using a 3/16" (5.0 mm) hex key. These screws can be seen in the image above.

If the XRN-R1 is used to mount a stage vertically, that stage should not be rotated where the spring tension is working against gravity. Rotation in this configuration should be limited to 180°. In addition, note that the XRN-R1 is a two-piece solution where the top plate is not permanently retained in the base, and therefore care should be taken when loosening the rotation locking screw in a vertical orientation.

The XRN-RB(/M) Adapter Base Plate can be purchased separately. This flexure clamp allows the rotation adapter base plate to double as a rail carrier for components with a 1/2" (12.7 mm) diameter, as seen in the image above and to the right. Additionally, with the use of the AD12BA, components with a 12 mm diameter, such as our Ø12 mm optical posts, can also be used. 

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
XRN-R1 Support Documentation
XRN-R1Rotation Adapter for Stages with 2" Dovetails, 1/4"-20 and 8-32 Taps
$122.00
Today
XRN-RB Support Documentation
XRN-RBRotation Adapter Base Plate for Stages with 2" Dovetails, 1/2" Bore, Imperial
$70.02
Today
+1 Qty Docs Part Number - Metric Price Available
XRN-R1/M Support Documentation
XRN-R1/MRotation Adapter for Stages with 2" Dovetails, M6 x 1.0 and M4 x 0.7 Taps
$122.00
Today
XRN-RB/M Support Documentation
XRN-RB/MRotation Adapter Base Plate for Stages with 2" Dovetails, 12.7 mm Bore, Metric
$70.02
Today

Mounting Adapters

  • XRN-A1 Adapter Enables Perpendicular Mounting of 2" Dovetail Components onto 3" Dovetail Components
  • XRN-A2 Adapter Enables Parallel Mounting of 2" Dovetail Components onto 3" Dovetail Components
  • Adapters Add 0.275" (7.0 mm) to the Overall Stacked Height of Components

These adapters enable mounting of quick-connect, crossed-roller bearing stages or accessories with a female 2" dovetail to components with a male 3" dovetail, as illustrated in the photos below. The XRN-A1 adapter enables perpendicular mounting while the XRN-A2 enables parallel mounting. The mounting configuration in the second photo below allows translation along a rail to be parallel to the direction of translation of a mounted stage.

To assemble, first loosen the dovetail locking screw on the end of the top stage or accessory. Position the adapter on the bottom stage or rail, as illustrated in the photos below, then align the top component on the adapter. Lastly, tighten the dovetail locking screw (maximum torque: 15 in•lbs) on the end of the top component until the entire assembly is secure. Please note that the deep-set screws in the sides of the adapter are not user adjustable.

XRN25P Stage and XR25DR Baseplate
Click for Details

Compact XRN25P Stage Mounted onto
XR25DR Rail Using XRN-A2 Adapter
XR25 and XRN25 Stages
Click for Details

Compact XRN25C Stage Mounted onto XR25P Stage Using XRN-A1 Adapter
Mounting Adapter Compatibility
Item # Orientation Top Component Bottom Component
XRN-A1 Perpendicular XRN25 Series
XRNR1 Stages
XR25 Series
XR50 Stages
XRR1 Stages
XRN-A2 Parallel
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
XRN-A1 Support Documentation
XRN-A1Perpendicular Mounting Adapter with Male 2" Dovetail and Female 3" Dovetail
$53.05
Today
XRN-A2 Support Documentation
XRN-A2Parallel Mounting Adapter with Male 2" Dovetail and Female 3" Dovetail
$105.00
Today