25 mm Travel Translation Stages, Crossed-Roller Bearings

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The side-mounted micrometer can be swapped with the locking plate to create both left-and right-handed stages. See the Micrometer Conversion tab for more details.

• Side- or End-Mounted Metric Micrometer
• Mounting Surface has Twenty-Two 1/4"-20 (M6) Tapped Blind Holes, 0.30" (7.6 mm) Deep
• Create Multi-Axis Configurations Using Dovetail Locking Screw
  • Clamp Screw has a Maximum Torque of 15 in•lbs
• Directly Compatible with 50 mm Translation Stages Using 3" Wide Mating Dovetail

The XR25P(/M) and XR25C(/M) stages provide 25 mm of travel and feature a side- or end-mounted metric micrometer, respectively, which gives a 500 µm displacement for each revolution. Stages are available with side-mounted micrometers for situations where space is a premium, and end-mounted micrometers for ease of adjustment. The end of each micrometer incorporates a 5/64" (2 mm) hex allowing it to be actuated in space-constrained environments. The stages are lockable with a plate on the side of the stage that can be locked using a 5/64" (2.0 mm) hex key. The top plate of each stage is tapped with an array of 1/4"-20 (M6) tapped blind holes.

These stages can be easily stacked and secured to one another using the integrated 3" wide mating dovetails. The stages are secured by a single dovetail locking mechanism with a 3/16" (5 mm) hex key. Other multi-axis configurations are also possible as illustrated in the table below. Take care during assembly to ensure no collisions occur with the Z-axis stage during full downward extension. To purchase the necessary components, simply click on the product list and add the items to your cart.

Micrometer conversion kits are available below that can be used to convert a side- or end-mounted stage into an end- or side-mounted stage, respectively.

Sample Multi-Axis Configurationsa
		XY	XZb	YZb	XYZb	Zb
Click Images to Enlarge
Micrometer Options	All Side- Mounted	View Imperial Product List Item # Qty Description XR25P 2 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, 1/4"-20 Taps Add To CartExportForward c View Metric Product List Item # Qty Description XR25P/M 2 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, M6 Taps Add To CartExportForward c	View Imperial Product List Item # Qty Description XR25P 2 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, 1/4"-20 Taps XR25-XZ 1 XZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps Add To CartExportForward View Metric Product List Item # Qty Description XR25P/M 2 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, M6 Taps XR25-XZ/M 1 XZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps Add To CartExportForward	View Imperial Product List Item # Qty Description XR25P 2 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, 1/4"-20 Taps XR25-YZ 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps Add To CartExportForward View Metric Product List Item # Qty Description XR25P/M 2 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, M6 Taps XR25-YZ/M 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps Add To CartExportForward	View Imperial Product List Item # Qty Description XR25P 3 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, 1/4"-20 Taps XR25-YZ 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps Add To CartExportForward c View Metric Product List Item # Qty Description XR25P/M 3 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, M6 Taps XR25-YZ/M 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps Add To CartExportForward c	View Imperial Product List Item # Qty Description XR25P 1 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, 1/4"-20 Taps XR25-YZ 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps XR25-B1 1 Baseplate for XR25 and XR50 Series Stages, Imperial Slot Spacing Add To CartExportForward View Metric Product List Item # Qty Description XR25P/M 1 25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, M6 Taps XR25-YZ/M 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps XR25-B1/M 1 Baseplate for XR25 and XR50 Series Stages, Metric Slot Spacing Add To CartExportForward
	All End- Mounted	View Imperial Product List Item # Qty Description XR25C 2 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, 1/4"-20 Taps Add To CartExportForward View Metric Product List Item # Qty Description XR25C/M 2 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, M6 Taps Add To CartExportForward	View Imperial Product List Item # Qty Description XR25C 2 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, 1/4"-20 Taps XR25-XZ 1 XZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps Add To CartExportForward View Metric Product List Item # Qty Description XR25C/M 2 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, M6 Taps XR25-XZ/M 1 XZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps Add To CartExportForward	View Imperial Product List Item # Qty Description XR25C 2 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, 1/4"-20 Taps XR25-YZ 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps Add To CartExportForward View Metric Product List Item # Qty Description XR25C/M 2 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, M6 Taps XR25-YZ/M 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps Add To CartExportForward	View Imperial Product List Item # Qty Description XR25C 3 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, 1/4"-20 Taps XR25-YZ 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps Add To CartExportForward View Metric Product List Item # Qty Description XR25C/M 3 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, M6 Taps XR25-YZ/M 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps Add To CartExportForward	View Imperial Product List Item # Qty Description XR25C 1 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, 1/4"-20 Taps XR25-YZ 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, 1/4"-20 Taps XR25-B1 1 Baseplate for XR25 and XR50 Series Stages, Imperial Slot Spacing Add To CartExportForward View Metric Product List Item # Qty Description XR25C/M 1 25 mm Travel Linear Translation Stage, End-Mounted Micrometer, M6 Taps XR25-YZ/M 1 YZ Stage Assembly Kit for XR25 and XR50 Series Stages, M6 Taps XR25-B1/M 1 Baseplate for XR25 and XR50 Series Stages, Metric Slot Spacing Add To CartExportForward

• Photos show a mix of side- and end-mounted micrometers, however, the product lists include stages with all side-mounted or all end-mounted micrometer options. Please note that all configurations except for XY require assembly kits; these kits are included in every applicable product list.
• Take care during assembly to ensure no collisions occur with the Z-axis stage during full downward extension.
• Available as a pre-assembled kit below.

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The XR25P-K2 Stage is preassembled in an
XYZ configuration.

• Preassembled XR25P Stages in XY or XYZ Configurations
• Side-Mounted Micrometers for Compactness
• Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs

Thorlabs offers XR25P(/M) stages preassembled in XY and XYZ configurations. The XR25P-K1(/M) XY Stage consists of two XR25P(/M) stages preassembled in an XY configuration. The XR25P-K2(/M) XYZ Stage consists of three XR25P(/M) stages preassembled in an XYZ configuration using an XR25-XZ(/M) Assembly Kit. The XR25P-K2 eliminates the need to buy and manually assemble the multi-axis stage assembly kits, which are sold below.

Each XR25P(/M) stage features side-mounted metric micrometers for 25 mm of travel at 500 µm translation per revolution. The XR25P offers 1/4"-20 tapped mounting holes, while the XR25P/M offers M6-tapped mounting holes. The micrometer can be moved to the opposite side of the stage by swapping the micrometer mounting blocks with the steel locking plate. For more information, please see the Micrometer Conversion tab above. Micrometer conversion kits are available below that can be used to convert an end- or side-mounted stage into a side- or end-mounted stage, respectively.

Click to Assemble
XZ Configuration Constructed Using
the XR25-XZ Assembly Kit

Click to Assemble
YZ Stage Assembly Constructed Using
the XR25-YZ Assembly Kit

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XYZ Configuration Constructed Using
the XR25-XZ Assembly Kit

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Z-Axis Stage Constructed Using
the XR25-XZ Assembly Kit and
the XR25-B1 Baseplate (Sold Below)

• Kits Consist of Angle Bracket and Z-Axis Mounting Plate
• Supports X, Z, XZ, YZ, or XYZ Configurations
• Compatible with 3" Wide Mating Dovetail Stages
• Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs

Thorlabs offers two assembly kits used to mount two XR25 or XR50 series stages perpendicular to each other. The XR25-XZ(/M) Assembly Kit contains a mounting plate and an angle bracket that mounts the surface of the Z-axis platform in-line to the direction of travel (XZ configuration). The XR25-YZ(/M) Assembly Kit contains a mounting plate and an angle bracket that mounts the surface of the Z-axis platform perpendicular to the direction of travel (YZ configuration). Take care during assembly to ensure no collisions occur with the Z-axis stage during full downward extension.

Both configurations require purchasing two XR25 and/or XR50 series stages in any combination as well as either assembly kit. The female dovetail on one arm of the angle bracket attaches to the male dovetail on the tapped platform of the X- or Y-axis stage, and then the male dovetail of the tapped platform of the Z-axis stage is mated to the other arm of the angle bracket. The tapped mounting plate provided with the XR25-XZ and the XR25-YZ is mounted to the Z-axis stage by attaching the male dovetail of the plate to the female dovetail on the stage, as shown in the image to the right. Mating the Z-axis stage this way ensures that the micrometer is countering forces from both gravity and the internal spring.

The tapped mounting plate included in each assembly kit contains the same 1/4"-20 (M6) tapped hole pattern as the top plate of the stages. Additionally, it offers two rear-located #8 (M4) counterbores for mounting optomechanical components with tapped 8-32 (M4) mounting holes directly to the mounting surface. Note that the component must be mounted with the 8-32 (M4) cap screw before the mounting plate is secured to the stage.

Z-Axis Stage Configuration
For situations where only a Z-axis translation stage is needed, either the XR25-XZ or the XR25-YZ angle bracket can be secured directly to the XR25-B1(/M) baseplate (sold below), as shown in the figure to the right.

X-Axis Stage Configuration
In addition to a Z-axis stage configuration, the XR25-XZ can be used for situations where the X-axis translation stage needs to be mounted vertically. The X-axis stage needs to be secured to the XR25-XZ angle bracket, and the angle bracket secured directly to the XR25-B1 baseplate (sold below).

XYZ Configurations
In order to construct an XYZ configuration, first construct an XY stage as pictured in the sample configuration table above. Then, the XR25-YZ assembly kit can be used to add the Z-axis. An XYZ configuration can also be constructed using the XR25-XZ assembly kit, which functions the same as an XYZ configuration constructed using the XR25-YZ, with only the X-axis and Y-axis stages switched. An XYZ configuration using the XR25-XZ assembly kit is shown to the right.

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An XR25-RC1 being used to mount a scientific camera on a 3-axis stage.

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An XR25-RC3 carrier being used to affix and retain the position of an XR25-RC1 rail carrier mounted on an XR50P stage.

• Each Provides Additional Coarse Translation and Mounting Features
• XR25-RC1 and XR25-RC2 Include Integrated Steel Pads for use with the XR25-RC3 Hard Stop
• XR25-RC3 Includes Integrated Steel Balls for use as a Hard Stop
• Compatible with 3" Wide Mating Dovetail Stages
• Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs

Thorlabs offers three rail carriers that are directly compatible with our XR25 and XR50 series stages, providing 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 XR25 or XR50 stage and connect to the stage's male dovetail. The position of the carrier can then be locked into place using a clamping mechanism [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 a stage in a matter of seconds.

Item #	XR25-RC1	XR25-RC2	XR25-RC3
Click Image to Enlarge
Mounting Features	1/4" (M6) Counterbores (x8) 1/4"-20 (M6) Taps (x9) 8-32 (M4) Taps (x7)	#8 (M4) Counterbores (x8) 8-32 (M4) Taps (x16)	1/4" (M6) Counterbored Slot (1x) 8-32 (M4) Taps (2x)
Additional Features	Steel Contact Pads for Use with XR25-RC3 Carrier		Hardened Steel Balls for Use as Hard Stop

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Two XR25P Stages rotated at an arbitrary angle using the XR25-R1 Rotation Adapter.

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The XR25-RB used as a rail carrier for a PH2 Post Holder.

View Imperial Product List

Item #	Qty	Description
KS1	1	Ø1" Precision Kinematic Mirror Mount, 3 Adjusters
TR2	1	Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 2"
PH2	1	Ø1/2" Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 2"
XR25-RB	1	XR25-R Series Rotation Adapter Base Plate, 1" Bore
XR25P	1	25 mm Travel Linear Translation Stage, Side-Mounted Micrometer, 1/4"-20 Taps
Add To CartExportForward

View Metric Product List

Item #	Qty	Description
KS1	1	Ø1" Precision Kinematic Mirror Mount, 3 Adjusters
TR50/M	1	Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 50 mm
PH50/M	1	Ø12.7 mm Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L=50 mm
XR25-RB/M	1	XR25-R Series Rotatin Adapter Base Plate Metric, 25.0 mm Bore
XR25C/M	1	25 mm Travel Linear Translation Stage, End-Mounted Micrometer, M6 Taps
Add To CartExportForward

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 and 8-32 Tapped Holes
• Base Plate Provides Ø1" Flexure Clamp
• Purchase Complete Adapter or Separate Base Plate
• Compatible with 3" Wide Mating Dovetail Stages
• Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs

The XR25-R1(/M) Rotation Adapter allows users to mount any two 3" 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 thirteen 1/4"-20 (M6) and twelve 8-32 (M4) tapped holes in addition to the 3" wide male dovetails on all edges. Rotation is achieved by loosening the right-most locking screw on the baseplate (also sold separately as the XR25-RB) using a 3/16"(5 mm) hex key. The adapter is clamped in place to a 3" dovetail with the left-most locking screw using a 3/16" (5 mm) hex key. These screws can be seen in the image above. 

If the XR25-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 XR25-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 XR25-RB(/M) Adapter Base Plate can be purchased separately. Utilizing its flexure clamp for 1" (25.0 mm) outer diameter components, like our Ø1" Optical Posts or our Ø1/2" Post Holders, allows the rotation adapter base plate to double as a rail carrier, as seen in the image to above. Here, the coarse height of the KS1 mirror mount can be adjusted with the PH2 post holder, while the coarse rotation can be independently adjusted in the rail carrier. This base plate also includes three 8-32 mounting holes on the face opposite the adjustment screws and integrated steel pads on its sides for use with the XR25-RC3 hard stop.

• Allows for Coarse Rotational or Translational Alignment of Stages with Table Hole Matrix
• Orthogonal Male Dovetails for Two Stage Mounting Orientations
• Compatible with 3" Wide Mating Dovetail Stages

The XR25-B1(/M) Baseplate provides an additional table mounting option for our XR25 and XR50 series translation stages. The baseplate features two orthogonal male dovetails that allow for two mounting orientations of an XR25 or XR50 series stage. A center Ø1/4" (M6) counterbored hole and two radial counterbored slots allow for coarse angular adjustment with respect to the table's 1/4"-20 (M6) hole matrix. For situations where the stage is oriented with the table's hole matrix, two 2.2" (55.9 mm) long 1/4" (M6) counterbored slots on the edge of the baseplate allow for coarse translation adjustment along the hole matrix before the base is secured to the table.

Z-Axis Stage Configuration
For situations where only a Z-axis translation stage is needed, either the XR25-XZ or the XR25-YZ angle bracket (sold above) can be secured directly to the baseplate.

X-Axis Stage Configuration
In addition to a Z-axis stage configuration, the XR25-XZ angle bracket (sold above) can be used for situations where the X-axis translation stage needs to be mounted vertically. The XR25-XZ angle bracket can be secured directly to the XR25-B1(/M) baseplate.

Click for Details
The radial slots and counterbored center hole allow the base plate to be rotated with respect to the table's hole matrix. The two slots and orthogonal mounting dovetails provide 360° adjustment.

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The orthogonal dovetails on the top of the XR25-B1 allow the stage to be mounted in two orientations.

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When mounted on the extended baseplate, the stage's translation axis is perpendicular to the adjustment axis of the baseplate.

• Allows for Coarse Adjustment Perpendicular to Stage Translation Axis
• 150 mm, 250 mm, and 500 mm Lengths Available
• Counterbored Mounting Slots Compatible with Imperial and Metric Breadboards
• Outer Dovetail Compatible with 3" Wide Mating Dovetail Stages
• Additional Dovetail Compatible with 34 mm Rail Accessories

These Extended Baseplates provide a convenient way to mount our XR25 and XR50 series translation stages on a breadboard or optical table. Both baseplates feature an outer male dovetail for mounting the translation stage, as shown in the image to the right, and an inner 34 mm male dovetail for mounting other clamps and platforms.

A mounted component can be translated across the entire length of the baseplate. The XR25DR2, XR25DR, and the XR25DR3 come in lengths of 150 mm, 250 mm, and 500 mm, respectively. For these stages, travel along the rail would be in the direction orthogonal to the stage's translation axis. The graduated scale engraved along one edge of each baseplate makes it easy to repeat adjustments between multiple locations on the baseplate; the XR25-RC3 rail carriers sold above can be used to mark a specific location on the baseplate before moving the stage.

The baseplates feature 1" long 1/4" (M6) counterbored mounting slots and a central 1/4" (M6) counterbored mounting hole that allow the rail to be used with both imperial and metric breadboard hole patterns. Standard cap screws can be used with this baseplate without interrupting the translation of mounted components.

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The XR25N Tranlsation Stage Positioner and XR25N1 Return Translation Stage Positioner can provide fine alignment of translation stages mounted on an extended dovetail baseplate.

• Clamps Directly to 3" Wide Mating Dovetails
• Included Dovetail Clamp Screw has a Maximum Torque of 15 in•lbs
• Fine Positioning of Stages and Carriers Along an Extended Dovetail Baseplate
• XR25N Positioner:
  
  • 1/4"-80 Adjuster Screw Provides 0.013" (320 µm) of Translation per Revolution
  • Translation Range of 1.49" (37.8 mm)
• XR25N1 Return Positioner:
  • Spring Loaded Plunger with Travel Range of 0.29" (7.2 mm)
  • Use with XR25N Positioner for Bidirectional Adjustment

The XR25N Translation Stage Positioner and XR25N1 Translation Stage Return Positioner are designed to aid in fine alignment of stages or carriers mounted on an extended dovetail baseplate. Each includes a 3" wide mating dovetail and two 8-32 (M4) mounting holes. A side-located 5/64" (2.0 mm) clamping screw locks to the extended baseplate, providing quick and convenient placement along the rail.

The XR25N incorporates an F25SS200 1/4"-80 adjuster screw to provide smaller, smoother movement than coarse translation by hand. The screw allows for 1.49" (37.8 mm) of travel before the interior of the bushing is exposed; longer adjuster screws can be installed if desired.

The XR25N1 translation stage return positioner is comprised of a spring-loaded plunger integrated into a 3" mating dovetail clamp. The plunger can travel a maximum range of 0.29" (7.2 mm), and the compression spring tension can also be adjusted with a 5/32" (4.0 mm) hex driver. When used in conjunction, the XR25N positioner and XR25N1 return positioner provide precision alignment along the axis of the extended rail baseplate. When a carrier or stage is placed between the translation stage positioners, actuating the adjustment screw pushes it toward the XR25N1 return positioner, compressing the spring loaded plunger. Retracting the adjustment screw on the XR25N positioner causes the spring-loaded plunger on the XR25N1 return positioner to expand, which keeps the carrier or stage in contact with the actuating screw of the XR25N positioner.

To use, place the positioners along the rail so that both positioners are in contact with the stage or carrier, and secure the XR25N and XR25N1 positioners with a 3/16" hex driver. Loosen the clamp holding the stage or carriage to the rail, then turn the adjuster screw with a 5/64" (2.0 mm) balldriver to push the platform until the desired amount of translation is achieved.

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Compact XRN25C Stage Mounted onto XR25P Stage Using XRN-A1 Adapter Plate

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Mount an XRN25 Series Stage (Top) on an XR25 or XR50 Series Stage (Bottom)

• Mount a Compact XRN25 Series Stage onto an XR25 or XR50 Series Stage or Baseplate

The XRN-A1 Stage Adapter enables users to mount the female 2" dovetail of our compact XRN25 Series Stages and accessories to the male 3" dovetail of our larger XR25 and XR50 Series Stages and accessories.

To assemble, first loosen the dovetail locking screw on the end of the XRN25 stage. Position the XRN-A1 Adapter on the XR25 or XR50 stage, as illustrated in the photo to the right, then align the compact XRN25 stage on the adapter plate. Lastly, tighten the dovetail locking screw on the end of the XRN25 stage until the entire assembly is secure. Please note that the deep-set screws in the sides of the adapter plate are not user adjustable.

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XR25-C2 Converts a Side-Mounted Micrometer Stage to an End-Mounted Micrometer Stage

• Compatible with XR25 and XR50 Series Stages
• Kits to Switch Between Side- and End-Mounted Micrometer Designs
  • XR25-C1: End-Mounted to Side-Mounted
  • XR25-C2: Side-Mounted to End-Mounted

The XR25-C1 and XR25-C2 are conversion kits that allow the micrometer head to be removed and refitted on the side or end of the stage, respectively. More details on the conversion process can be found on the Micrometer Conversion tab above.