Rigid, Lightweight, Non-Isolating Support Frame

Overview
Breadboards
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Item #	PFM52501	PFM52502	PFM52503	PFM52504
Compatible Breadboard Dimensions^a	600 mm x 900 mm (2' x 3')	600 mm x 1200 mm (2' x 4')	750 mm x 900 mm (2.5' x 3')	750 mm x 1200 mm (2.5' x 4')
Compatible Under Shelf	PWA100	PWA110	PWA100	PWA110
Frame Height	727 mm (28.62")
Outer Frame Dimensions^b	590 mm x 890 mm (23.23" x 35.04")	590 mm x 1190 mm (23.23" x 46.85")	740 mm x 890 mm (29.13" x 35.04")	740 mm x 1190 mm (29.13" x 46.85")
Frame Mass (Weight)^c	52 kg (115 lbs)	57 kg (126 lbs)	56 kg (123 lbs)	61 kg (134 lbs)
Maximum Total Load^d	200 kg (441 lbs)
Frame Material	Steel

Complete Listing of Recommended Breadboards in the Breadboards Tab Above
Not Including Frame Bolt Heads or Leveling Feet
Not Including the Breadboard
Total Weight of Frame, Breadboard, and Everything on the Breadboard

Features

Support Frame with All-Steel Construction
Casters and Leveling Feet Included
Ships Fully Assembled
Compatible with Both Metric and Imperial Breadboards
Sorbothane Pads Provide Damping Between the Breadboard and Frame
Optional Under Shelf

The PFM series of support frames are designed to provide a lightweight, portable option for supporting optical breadboards. The all-steel construction and vibration-damping Sorbothane pads provide an excellent base for an optical breadboard (compatible breadboards are listed on the Breadboards tab above).

The frame comes with casters to facilitate relocation without needing to remove the optical breadboard and its contents. Once the frame is in the desired location, the four leveling feet can be lowered to level the table and lift it off the casters. These support frames are shipped fully assembled. An optional under shelf is also available.

Recommended Breadboards and Under Shelf for the PFM52501

Breadboard	Dimensions	Unpackaged Mass (Weight)^a	Tapped Holes	Compatible Under Shelf
MB2436	24" x 36" x 0.5"	18 kg (40 lbs)	1/4"-20 Taps on 1" Centers	PWA100
MB6090/M	600 mm x 900 mm x 12.5 mm	18 kg (40 lbs)	M6 Taps on 25 mm Centers
PBG2436F	24" x 36" x 0.98"	15.8 kg (34.8 lbs)	1/4"-20 Taps on 1" Centers
PBG12106	24" x 36" x 2.2"	16 kg (35 lbs)	1/4"-20 Taps on 1" Centers
PBG6090A	600 mm x 900 mm x 25 mm	15.3 kg (33.7 lbs)	M6 Taps on 25 mm Centers
PBG52506	600 mm x 900 mm x 55 mm	16 kg (35 lbs)	M6 Taps on 25 mm Centers

Recommended Breadboards and Under Shelf for the PFM52502

Breadboard	Dimensions	Unpackaged Mass (Weight)^a	Tapped Holes	Compatible Under Shelf
MB2448	24" x 48" x 0.5"	24 kg (53 lbs)	1/4"-20 Taps on 1" Centers	PWA110
MB60120/M	600 mm x 1200 mm x 12.5 mm	24 kg (53 lbs)	M6 Taps on 25 mm Centers
PBG2448F	24" x 48" x 0.98"	20.9 kg (46.1 lbs)	1/4"-20 Taps on 1" Centers
PBG11107	24" x 48" x 0.98"	20.5 kg (45 lbs)	1/4"-20 Taps on 1" Centers
PBG60120A	600 mm x 1200 mm x 25 mm	20.3 kg (44.8 kg)	M6 Taps on 25 mm Centers

Recommended Breadboards and Under Shelf for the PFM52503

Breadboard	Dimensions	Unpackaged Mass (Weight)^a	Tapped Holes	Compatible Under Shelf
PBG3036F	30" x 36" x 0.98"	19.6 kg (43.2 lbs)	1/4"-20 Taps on 1" Centers	PWA100
PBG11110	30" x 36" x 0.98"	16 kg (35 lbs)	1/4"-20 Taps on 1" Centers
PBG7590A	750 mm x 900 mm x 25 mm	19.0 kg (41.9 lbs)	M6 Taps on 25 mm Centers
PBG12110	30" x 36" x 2.2"	21 kg (44 lbs)	1/4"-20 Taps on 1" Centers
PBG52510	750 mm x 900 mm x 55 mm	20 kg (44 lbs)	M6 Taps on 25 mm Centers

Recommended Breadboards and Under Shelf for the PFM52504

Breadboard	Dimensions	Unpackaged Mass (Weight)^a	Tapped Holes	Compatible Under Shelf
PBG3048F	30" x 48" x 0.98"	26.0 kg (57.3 lbs)	1/4"-20 Taps on 1" Centers	PWA110
PBG75120A	1200 mm x 750 mm x 25 mm	25.2 kg (55.6 lbs)	M6 Taps on 25 mm Centers
PBG52511	1200 mm x 750 mm x 55 mm	26.5 kg (59 lbs)	M6 Taps on 25 mm Centers
PBG12111	30" x 48' x 2.2"	27 kg (60 lbs)	1/4"-20 Taps on 1" Centers

These weights are approximate and are subject to change. The information is only to be used as a guideline.

In addition to the breadboards listed in the tables above, Thorlabs carries a large supply a breadboards suitable for almost any application. Many of these breadboards can be supported by the PFM series frames; however it is important to remember that the maximum recommended load for these frames is 200 kg (441 lbs), which includes the mass (weight) of the frame, breadboard, and all of the items on the breadboard.

Posted Comments:

Domantas Berenis (posted 2020-05-26 05:13:57.423)

Hello, I am curious if sorbothane damping pads between tabletop and the frame are single use or reusable? At our laboratory few of these frames are used to hold wooden tabletops and now we have the need to exchange them to aluminum ones. So Is there a possibility to do that without harming the pads? Or if the pads will be harmed - is there a possibility to buy new ones?

DJayasuriya (posted 2020-05-26 10:50:33.0)

Thank you for your inquiry. Yes these are reusable. If the pads gets damaged while changing we would be able to supply spares.

DJayasuriya (posted 2020-05-26 10:50:33.0)

Thank you for your inquiry. Yes these are reusable. If the pads gets damaged while changing we would be able to supply spares.

Silvano.Uribe (posted 2015-08-26 12:40:11.6)

Is there any way to get one of these stands with a custom height? I have a board (PBG12106 - UltraLight Series II Breadboard, 36" x 24" x 2.2", 1/4"-20 Taps) that needs to be raised a maximum of 47" and is adjustible down anywhere between 1/4"-1/2".

rcapehorn (posted 2015-08-28 11:47:07.0)

Response from Rob at Thorlabs: Thank you for your interest in our breadboard frames. Unfortunately at this time we cannot offer customised versions of our PFM range. We can however offer customised versions of our upgraded ridged frame series, PFR, found here - http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=1871. The maximum height we can offer for this range is 1000mm. If you would be interested in a quotation for one of these custom frames, please contact our Technical Support team with your request - techsupport@thorlabs.com.

david.gherardi (posted 2014-11-26 11:21:43.727)

Is there any way to securely attach a breadboard (eg MB6090/M) to one of these frames (eg PFM52501)? The overview suggests that the breadboard only rests upon Sorobothan pads. Although I can see how this approach may be suitable in a 'controlled' lab environment, in more chaotic enivornments (eg a production line) it can be more important for everything to be firmly bolted together and secure.

cdaly (posted 2014-11-26 04:49:25.0)

Response from Chris at Thorlabs: No, there is no way to fix a breadboard to these frames as they are. They are only intended to have the board rest on top.

tor (posted 2011-01-10 14:13:38.0)

Response from Tor at Thorlabs to Matt: Thank you for your interest in our MB2424 and our PFM52502. Please note that the breadboard is designed to rest on the Sorbothane pads on the frame, so relative motion between the two breadboards must be considered in choosing these over the MB2448. The hole patterns for the breadboards can be viewed in the AutoCAD PDFs: http://www.thorlabs.com/Thorcat/6200/6279-E0W.pdf http://www.thorlabs.com/Thorcat/14000/14052-E0W.PDF The 1/4"-20 taps on 1" centers would have the same spacing in this configuration.

matt.giacalone (posted 2010-12-15 15:36:54.0)

I am buying (2) MB2424 to bolt up to a pfm52502 frame table. Im assuming (2) 2 x 2 plates will bolt up the same as a 4 x 2 plate? What is the bolt pattern dimensions of the table? Thank you, Matt