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Ø1.5" Post Holders


  • Holds Ø1.5" Pillar Posts
  • Pedestal Style or Post Holder Options
  • Compatible with 1/4"-20 or
    M6 Caphead Screws

Turn Your Ø1.5" Post into a
Pedestal Style Post

PB4

Studded Pedestal Base Adapter

PF175

Clamping Fork

LPH200

Rigid Stand Post Holder with Included Post Collar

Application Idea

LPH100 Ø1.5" Post Holder with Post and C1526 10 mm Cage Clamp Mount

MPA1

Rigid Stand Post Holder Adapter Plate for Mounting to Translation Stages

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LX Stage with Rigid Stage Adapter
Click to Enlarge

View Imperial Product List
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LX101Self-Contained 25 mm Translation Stage, 1/4"-20 Taps
LPH2001Rigid Stand Post Holder, L = 200 mm
MPA11Rigid Stand Adapter Plate, 1/4"-20 Taps
SH25S03811/4"-20 Stainless Steel Cap Screw, 3/8" Long, Pack of 25
W25S05011/4" Washer, M6 Compatible, Stainless Steel, Pack of 100
View Metric Product List
Item #QtyDescription
LX10/M1Self-Contained 25 mm Translation Stage, M6 Taps
LPH2001Rigid Stand Post Holder, L = 200 mm
MPA1/M1Rigid Stand Adapter Plate, M6 Taps
SH6MS101M6 x 1.0 Stainless Steel Cap Screw, 10 mm Long, Pack of 25
W25S05011/4" Washer, M6 Compatible, Stainless Steel, Pack of 100

The MPA1 Adapter Used to Mount a Post Holder onto a Translation Stage

Features

  • Post Holder or Pedistal Style Clamp for Ø1.5" Posts
  • Post Holder with Quick-Release and Height Collar
  • Pedestal Base Compatible with PF175 Clamping Fork
  • Adapter Plate for Mounting Rigid Stand Post Holders on Translation Stages

Thorlabs' Ø1.5" Post Holders and Pedestal Clamping Fork are ideal solutions for mounting our Ø1.5" posts to a breadboard or optical table. While our line of Ø1.5" posts covers a range of fixed heights, the post holders allow more height flexibility and mounting options. The sturdy 66 mm construction rail body and broad 3.00" (76.2 mm) × 3.52" (89.3 mm) base provide superb stability and solid mounting. Counterbored slots in the base allow the post holder to be directly mounted with 1/4"-20 (M6) caphead screws. A taller post holder should be used with a longer post holder in order to obtain the greatest stability.

Alternatively, the Pedestal Base Adapter allows the user to secure an Ø1.5" post through use of a clamping fork. It has a 1/4"-20 (M6) threaded stud that is designed to thread onto the bottom of our Ø1.5" posts. This adapter is compatible with our PF175 clamping fork, which creates three points of contact with the table for high stability.

We also offer a post holder adapter plate that allows users to mount a rigid stand post holder on translation stages that have four 1/4"-20 (M6) tapped holes with 1" spacing and a sufficient load capacity to support a post holder and additional components. Be sure to check a stage's specifications to determine compatibility. The combination of the adapter plate and a translation stage provides a manual solution for easily translating a post holder within a setup.


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Ø1.5" Post Holders

Rigid Stand Post Holder Mechanical Diagram
Click to Enlarge

Mechanical Drawing

Thorlabs' Ø1.5" Post Holders provide a rigid and stable mounting solution for our Ø1.5" posts. They are offered in four stand heights (see mechanical drawing to the right for additional details) to meet the specific requirements of any system. Each post holder features a quick-release handle that locks and unlocks a Ø1.5" post. The included post collar with an alignment pin can be used to maintain a post's height during its rotation. The alignment pin acts as a hard mechanical stop that lets you quickly return to a previously set angle. The base can be secured to a tabletop via four counterbored slots that accept 1/4"-20 (M6) cap screws. The base is also compatible with the MPA1(/M) adapter plate (sold below) that allows a post holder to be mounted on a translation stage.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
LPH100 Support Documentation
LPH100Rigid Stand Post Holder, L = 100 mm
$364.56
Today
LPH150 Support Documentation
LPH150Rigid Stand Post Holder, L = 150 mm
$379.27
Today
LPH200 Support Documentation
LPH200Rigid Stand Post Holder, L = 200 mm
$392.92
Today
LPH250 Support Documentation
LPH250Rigid Stand Post Holder, L = 250 mm
$407.63
Today

Ø1.5" Post Pedestal Base Adapter and Clamping Fork

BE1 INcludes a Hex Key for Mounting
Click to Enlarge

The PF175 Secures a Ø1.5" Post to an Optical Table with a PB4 Base.
P2 with PB4
Ø1.5" Post Shown with PB4 Base

Each PB4 (PB4/M) Pedestal Base Adapter has a threaded 1/4"-20 (M6) stud that is designed to thread onto the bottom of our P-Series Posts. For instance, the image to the right shows a P2 post with a PB4 Base. The PB4 adapter allows our PF175 clamping fork to be used to position the post assembly conveniently on your optical bench. This clamping fork creates three points of contact with the table for high stability.

Please note that significant overtightening of clamping forks can deform the surface of an optical table, which can cause misalignment of components and decrease stability of the clamping fork.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PB4 Support Documentation
PB4Studded Pedestal Base Adapter, 1/4"-20 Thread
$13.34
Today
+1 Qty Docs Part Number - Universal Price Available
PF175 Support Documentation
PF175Clamping Fork for Ø1.5" Pedestal Post or Post Pedestal Base Adapter, Universal
$18.81
Today
+1 Qty Docs Part Number - Metric Price Available
PB4/M Support Documentation
PB4/MStudded Pedestal Base Adapter, M6 x 1.0 Thread
$13.34
Today

Post Holder Adapter Plate

LX Stage with Rigid Stage Adapter
Click to Enlarge

View Imperial Product List
Item #QtyDescription
XRN25P-K11Preassembled Compact XY 25 mm Translation Stage, Side Micrometers, 1/4"-20 Taps
LPH1501Rigid Stand Post Holder, L = 150 mm
MPA11Rigid Stand Adapter Plate, 1/4"-20 Taps
SH25S03811/4"-20 Stainless Steel Cap Screw, 3/8" Long, Pack of 25
W25S05011/4" Washer, M6 Compatible, Stainless Steel, Pack of 100
View Metric Product List
Item #QtyDescription
XRN25P-K1/M1Preassembled Compact XY 25 mm Translation Stage, Side Micrometers, M6 Taps
LPH1501Rigid Stand Post Holder, L = 150 mm
MPA1/M1Rigid Stand Adapter Plate, M6 Taps
SH6MS101M6 x 1.0 Stainless Steel Cap Screw, 10 mm Long, Pack of 25
W25S05011/4" Washer, M6 Compatible, Stainless Steel, Pack of 100

The MPA1 Adapter Used to Mount a Rigid Stand Post Holder onto a Translation Stage
  • Mount a Rigid Stand Post Holder onto a Translation Stage
  • Matches the Compact Footprint of Post Holder
  • Four 1/4" Counterbored Holes for Mounting to a Translation Stage
  • Four 1/4"-20 (M6) Tapped Holes for Mounting a Post Holder

The MPA1(/M) Rigid Stand Post Holder Adapter Plate allows users to mount a post holder onto a translation stage that has four 1/4"-20 (M6) tapped holes with 1" spacing and a sufficient load capacity to support a post holder and additional components. Be sure to check a stage's specifications to determine compatibility. The combination of the adapter plate and a translation stage provides a manual solution for easily translating a post holder within a setup.

To assemble, attach the adapter plate onto the translation stage via the four 1/4" (M6) counterbored holes that accept 1/4"-20 (M6) cap screws. Then mount the rigid stand onto the adapter plate using the four 1/4"-20 (M6) tapped holes; see the image to the right.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
MPA1 Support Documentation
MPA1NEW!Customer Inspired! Rigid Stand Adapter Plate, 1/4"-20 Taps
$32.00
Today
+1 Qty Docs Part Number - Metric Price Available
MPA1/M Support Documentation
MPA1/MNEW!Rigid Stand Adapter Plate, M6 Taps
$32.00
5-8 Days
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