TMC Optical Tables: Tops, Breadboards & Supports

Optical Tables: Tops,
Breadboards & Supports

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770 SERIES
CleanTop^® II Optical Top

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Specifications

Core:

Steel honeycomb,closed-cell, 0.010 in. thick foil

Core shear modulus:

275,000 psi

Core cell size:

< 0.5 in. ²

Core Density:

13.3 lbs/ft³ (230 kg/m³)

Flatness:

± 0.005 in. (0.13 mm)

Top Skin:

430 series ferromagnetic stainless steel, 1/8 in. thick (3 mm)

Sidewalls:

Damped, formed steel channel, vinyl covered

Tapped holes:

Backed by 1 in. (25 mm) long CleanTop^® II nylon cups

See Also:
Optical Tops
	Series 710
	Series 780
	Series 790
Supports
	4 Post System
	6 Post System
	Free Standing Posts
	Modular Posts

The TMC 770 Series Optical Top is an economical alternative to our industry standard 780 Series CleanTop^® II Optical Tops. We offer our 770 Series CleanTop^® II with 1/8" (3 mm) top and bottom skins. The reduced skin thickness degrades the overall structural rigidity. In addition, a 1/8" skin allows only 2 1/2 threads for a 1/4-20 screw, less the counter-sink.

However, the 770 Series is the ideal configuration for less demanding applications for which low cost is the primary consideration.

Features:

Patented CleanTop^® II individual nylon cups under
each tapped hole are airtight.
1/8 in. (3mm) top and bottom skins
Two dry damping levels available:
- Standard Dry Damping
- Nominal Dry Damping

For more information about Dry Damping, Click Here.

How to Order:

Choose the size and thickness of the top that you need from either the Standard Damping Chart or Nominal Damping chart below.
You will need to specify the available 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 Damping level you require. You will be taken to a new page containing pricing information.
NOTE: The 770 Series Optical Tops cannot be purchased online. You will be given pricing as well as purchasing and shipping information.
You can then return to shopping, check out, or contact TMC for more information.

Size Chart - Standard Damping

Surface Dimensions			8" Thick Tops (200 mm)	12" Thick Tops (300 mm)
in.	ft.	m	8" Thick Tops (200 mm)	12" Thick Tops (300 mm)
30 x 60 standard dry damping		0.75 X 1.5 standard dry damping	773-432 Get Price	773-632 Get Price
30 x 72 standard dry damping		0.75 X 1.8 standard dry damping	773-491 Get Price	773-691 Get Price
30 x 96 standard dry damping		0.75 X 2.4 standard dry damping	773-492 Get Price	773-692 Get Price
30 x 120 standard dry damping		0.75 X 3.0 standard dry damping	773-493 Get Price	773-693 Get Price
36 x 60 standard dry damping	3 x 5 standard dry damping	0.9 X 1.5 standard dry damping	773-436 Get Price	773-636 Get Price
36 x 72 standard dry damping	3 x 6 standard dry damping	0.9 X 1.8 standard dry damping	773-439 Get Price	773-639 Get Price
36 x 96 standard dry damping	3 x 8 standard dry damping	0.9 X 2.4 standard dry damping	773-440 Get Price	773-640 Get Price
36 x 120 standard dry damping	3 x 10 standard dry damping	0.9 X 5.0 standard dry damping	773-494 Get Price	773-694 Get Price
40 x 60 standard dry damping		1.0 X 1.5 standard dry damping	773-443 Get Price	773-643 Get Price
40 x 80 standard dry damping		1.0 X 2.0 standard dry damping	773-444 Get Price	773-644 Get Price
40 x 120 standard dry damping		1.0 X 3.0 standard dry damping	773-445 Get Price	773-645 Get Price
48 x 48 standard dry damping	4 x 4 standard dry damping	1.2 X 1.2 standard dry damping	773-447 Get Price	773-647 Get Price
48 x 60 standard dry damping	4 x 5 standard dry damping	1.2 X 1.5 standard dry damping	773-449 Get Price	773-649 Get Price
48 x 72 standard dry damping	4 x 6 standard dry damping	1.2 X 1.8 standard dry damping	773-451 Get Price	773-651 Get Price
48 x 96 standard dry damping	4 x 8 standard dry damping	1.2 X 2.4 standard dry damping	773-455 Get Price	773-655 Get Price
48 x 120 standard dry damping	4 x 10 standard dry damping	1.2 X 3.0 standard dry damping	773-459 Get Price	773-659 Get Price
Weight Factor (WF) (approx.); Area x WF = Total Weight			0.190 lb/in.² (0.013 kg/cm²	0.230 lb/in.² (0.016 kg/cm²

Note: you must specify the required hole patterns and laser ports. Click here for the Suffix Chart Hole-Patterns/Laser Ports

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Size Chart - Nominal Damping

Surface Dimensions			8" Thick Tops (200 mm)	12" Thick Tops (300 mm)
in.	ft.	m	8" Thick Tops (200 mm)	12" Thick Tops (300 mm)
30 x 60 nominal dry damping		0.75 X 1.5 nominal dry damping	771-432 Get Price	771-632 Get Price
30 x 72 nominal dry damping		0.75 X 1.8 nominal dry damping	771-491 Get Price	771-691 Get Price
30 x 96 nominal dry damping		0.75 X 2.4 nominal dry damping	771-492 Get Price	771-692 Get Price
30 x 120 nominal dry damping		0.75 X 3.0 nominal dry damping	771-493 Get Price	771-693 Get Price
36 x 60 nominal dry damping	3 x 5 nominal dry damping	0.9 X 1.5 nominal dry damping	771-436 Get Price	771-636 Get Price
36 x 72 nominal dry damping	3 x 6 nominal dry damping	0.9 X 1.8 nominal dry damping	771-439 Get Price	771-639 Get Price
36 x 96 nominal dry damping	3 x 8 nominal dry damping	0.9 X 2.4 nominal dry damping	771-440 Get Price	771-640 Get Price
36 x 120 nominal dry damping	3 x 10 nominal dry damping	0.9 X 5.0 nominal dry damping	771-494 Get Price	771-694 Get Price
40 x 60 nominal dry damping		1.0 X 1.5 nominal dry damping	771-443 Get Price	771-643 Get Price
40 x 80 nominal dry damping		1.0 X 2.0 nominal dry damping	771-444 Get Price	771-644 Get Price
40 x 120 nominal dry damping		1.0 X 3.0 nominal dry damping	771-445 Get Price	771-645 Get Price
48 x 48 nominal dry damping	4 x 4 nominal dry damping	1.2 X 1.2 nominal dry damping	771-447 Get Price	771-647 Get Price
48 x 60 nominal dry damping	4 x 5 nominal dry damping	1.2 X 1.5 nominal dry damping	771-449 Get Price	771-649 Get Price
48 x 72 nominal dry damping	4 x 6 nominal dry damping	1.2 X 1.8 nominal dry damping	771-451 Get Price	771-651 Get Price
48 x 96 nominal dry damping	4 x 8 nominal dry damping	1.2 X 2.4 nominal dry damping	771-455 Get Price	771-655 Get Price
48 x 120 nominal dry damping	4 x 10 nominal dry damping	1.2 X 3.0 nominal dry damping	771-459 Get Price	771-659 Get Price
Weight Factor (WF) (approx.); Area x WF = Total Weight			0.190 lb/in.² (0.013 kg/cm²	0.230 lb/in.² (0.016 kg/cm²

Note: you must specify the required hole patterns and laser ports.

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