Optical Tops, Optical Tables, Breadboards & Supports
Technical Manufacturing Corporation TMC

March 11, 2010
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Optics HomePage:
Optical Tops, Optical Tables,
Breadboards & Supports
How to Select an Optical Top, Optical Table
20 Reasons for choosing TMC Optical Top, Optical Table
CleanTop® II Optical Tops & Optical Tables
Dry Damping
Options & Accessories
See Also:  Optical Tops,   Optical Tables
   Series 710 Optical Top,  Optical Table
   Series 730 Optical Top,  Optical Table
   Series 770 Optical Top,  Optical Table
   Series 780 Optical Top,  Optical Table
   Series 790 Optical Top,  Optical Table
  See Also: Supports
   4 Post System
   6 Post System
   Free Standing Posts
   Modular Posts
  See Also: Optical   Breadboards
   78 Series Breadboard
   77 Series Breadboard
   75 Series Breadboard
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78 SERIES
CleanTop® II Breadboards   

 2 and 4 in. thick (50, 100mm)

78 Series

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TMC’s 78 Series CleanTop® II Breadboards provide the ultimate in rigidity and damping for smaller tops. Available in both 2 and 4 inch thicknesses (50, 100 mm), these tops include the same patented CleanTop spill-proof hole technology and small cell, high-density steel honeycomb core as our largest tops.

These tops can be readily designed to meet custom requirements including custom mounting hole patterns, through-holes, special shapes and custom materials.

TMC’s 78 Series CleanTop® II Breadboards are recommended for virtually all demanding breadboard applications.

Features

Damping Level: Standard

For more information about Dry Damping, Click Here.
For information about Breadboard Levelers Click Here

How to Order




Standard Dry Damping

Size Chart - Basic Part Number

Surface Dimensions    
2"
Thick Tops
(50 mm)
4"
Thick Tops
(100 mm)
in.
      ft.       
m
  12 x 12   1 x 1   0.3 x 0.3   78-105 
 
  78-205  
  12 x 24   1 x 2   0.3 x 0.6   78-107 
 
  78-207  
  12 x 36   1 x 3   0.3 x 0.9   78-108  
  78-208  
  12 x 48   1 x 4   0.3 x 1.2   78-109  
  78-209  
  12 x 72   1 x 6   0.3 x 1.8   78-110 
 
  78-210  
  20 x 30      0.5 x 0.75   78-111  
  78-211  
  20 x 40      0.5 x 1.0   78-112 
 
  78-212  
  24 x 24   2 x 2   0.6 x 0.6   78-113  
  78-213  
  24 x 36   2 x 3   0.6 x 0.9   78-115 
 
  78-215  
  24 x 48   2 x 4   0.6 x 1.2   78-119  
  78-219 
 
  24 x 60   2 x 5   0.6 x 1.5   78-121  
  78-221 
 
  24 x 72   2 x 6   0.6 x 1.8   78-123  
  78-223  
  24 x 96   2 x 8   0.6 x 2.4   78-124  
  78-224  
  30 x 30      0.75 x 0.75   78-125  
  78-225  
  30 x 36      0.75 x 0.9   78-127  
  78-227 
 
  30 x 40      0.75 x 1.0   78-129  
  78-229  
  30 x 48      0.75 X 1.2   78-131  
  78-231  
  30 x 60      0.75 x 1.5   78-132  
  78-232  
  30 x 72      0.75 x 1.8   78-191  
  78-291  
  30 x 96      0.75 x 2.4   78-192  
  78-292  
  36 x 36   3 x 3   0.9 x 0.9   78-133  
  78-233  
  36 x 48   3 x 4    0.9 x 1.2   78-135  
  78-235  
  36 x 60   3 x 5   0.9 x 1.5   78-136  
  78-236  
  36 x 72   3 x 6   0.9 x 1.8   78-139  
  78-239 
 
  36 x 96   3 x 8   0.9 x 2.4   78-140  
  78-240 
 
  40 x 40      1.0 x 1.0   78-141 
 
  78-241 
 
  40 x 60      1.0 x 1.5   78-143 
 
  78-243  
  40 x 80      1.0 x 2.0   78-144  
  78-244  
  48 x 48   4 x 4   1.2 x 1.2   78-147 
  78-247  
  48 x 60   4 x 5   1.2 x 1.5   78-149  
  78-249  
  48 x 72   4 x 6   1.2 x 1.8   78-151  
  78-251  
  48 x 96   4 x 8   1.2 x 2.4   78-155  
  78-255
  
Weight Factor (WF) (approx.);
Area x WF = Total Weight
  0.135 lb/in.2
(0.01 kg/cm2)
0.195 lb/in.2
(0.014 kg/cm2)

 

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Suffix  Chart Hole-Patterns/Laser Ports

Suffix Hole Pattern-Threads Double
Density
Laser Port
00R  No holes no no
01R  1" centers - 1/4-20 no yes
02R  1" centers - 1/4-20 no no
11R  25 mm centers - M6 no yes
12R  25 mm centers - M6 no no
01DR  1" staggered centers-1/4 - 20 yes yes
02DR  1" staggered centers-1/4 - 20 yes no
11DR  25 mm staggered centers-M6 yes yes
12DR  25 mm staggered centers-M6 yes no

 

 

 

 

 

 

 

 

 

 




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 General Specifications
 
  Core: Steel honeycomb,     closed-cell, 0.010 in.
    (0.2mm) thick foil
  Core shear modulus:
    275,000 psi
    (19,300 kg/cm2)
 

Core cell size:
   
<0.5 in.2  (3 cm2)

  Core density: 13.3 lbs/ft3
    (230 kg/m3)
  Flatness: ± 0.005 in.    (0.13mm)
   Top skin: 430 series
    ferromagnetic stainless
steel
  Sidewalls: Damped, formed steel channel, vinyl covered
  Tapped holes: Backed by
    1 in. (25mm) long CleanTop ®II nylon cups
     
 
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