Thorlabs - Ø1.5" Post Clamps with Tapped Mounting Surface

The C1501 and C1525 Ø1.5" Post Mounting Clamps are an integral part of our Ø1.5" Post Assemblies, providing rigid, general purpose mounting surfaces. These mounting clamps can be used for fastening our wide array of Opto-Mechanical Mounts in much the same way breadboards are commonly used.

The clamping mechanism is directly compatible with our Ø1.5" P-Series Posts. Vertical positioning is achieved by sliding the rear clamping mechanism along the length of the Ø1.5" post. Once the desired vertical position is achieved the clamping mechanism is actuated with a 3/16" (5 mm) hex key or balldriver.

The C1501 offers a removable front plate that provides an array of 1/4"-20 (M6) and 8-32 (M4) tapped and counterbored holes. This removable mounting plate can be purchased separately as C1520 (C1520/M) below.

The C1525 offers a large mounting plate with a generous array of 1/4"-20 (M6) tapped mounting holes. Replacement mounting plates can be purchased separately as MB4A (MB1111A/M) below.

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Posted Comments:

Poster: koreancarsg

Posted Date: 2013-05-02 16:48:25.853

for C1501/M Manual Height Adjustment Achieved via a Screw, may i know is the securing screw made of what material? is it stainless steel? Am afraid it will corode after long period of time when it is too tighten in humid enviorment. Thank you

Poster: jlow

Posted Date: 2013-05-02 12:49:00.0

Response from Jeremy at Thorlabs: The screw material is stainless steel.

Poster: jlow

Posted Date: 2012-12-24 11:38:00.0

Response from Jeremy at Thorlabs: I'm assuming you are mainly looking for the tolerance of the bore that the post goes through. Worst case, there is there could be 0.019" clearance between the post and clamp prior to tightening. The nominal gap is 0.015" and the minimum gap is 0.014". When clamping the metal will close evenly so there should be minimal angular drift, but the tolerances of the plate could result in an angular difference of about 1.6mrad (calculated).

Poster: ben.mangum

Posted Date: 2012-12-13 14:27:17.21

Once tightened, how close to plumb can I expect the front face of the C1501 to be? How tight are the tolerances?

Poster: Thorlabs

Posted Date: 2010-07-07 08:42:05.0

Response from Javier at Thorlabs to mpartlow: thank you for your feedback. Although we have not tested the C1525 mounting post clamp for maximum load capacity, we are confident that it will be able to effectively support a heavy collimator or isolator, as the clamping force would allow for supporting several pounds.

Poster: mpartlow

Posted Date: 2010-06-29 16:00:09.0

Is there a recommended maximum weight load for the C1525 attached to a 1.5" post? I am considering using it to hold a heavy collimator/isolator.

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Ø1.5" Post Clamps with Tapped Mounting Surface