TMC Technical Manufacturing Corporation

Optical Tops,
Breadboards & Supports

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78 SERIES
CleanTop^® II Breadboards

2 and 4 in. thick (50, 100mm)

78 Series

Click here for a larger image.

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

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

CleanTop II spill-proof hole design
3/16 in. (5 mm) skins
One level of fixed structural damping
2 in. (50 mm) or 4 in.(100 mm) total panel thickness

Damping Level: Standard

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

How to Order

Choose the size and thickness of the top that you need from the chart below.
You must specify the Hole Pattern / Threads and /or Laser Ports. Click here to see the Hole Pattern / Laser Port Suffix Chart.
Click on the Get Price Link for the specific size and thickness breadboard that you require.
You will be taken to a new page containing pricing information. NOTE: The 78 Series Breadboards cannot be purchased online at this time. You will be given pricing as well as purchasing and shipping information.
You can then contact TMC for more information to complete your purchase.

See Also:
Breadboards
	Series 77
	Series 75
	Accessories

Standard Dry Damping

Size Chart - Basic Part Number

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

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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