Base Guide

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Vibration isolators and laboratory benches

The area of the mounting plate

Mounting plates for the optical vibration isolator and the laboratory bench for optical experiments include flat benches (aluminum honeycomb), ordinary steel plates, cast iron plates, and aluminum plates. (Notes that the mounting plate varies depending on product type.) A variety of mounting plates of different sizes are available as standard products to satisfy almost any need. In addition, products other than the standard products can also be prepared according to customer specifications.

Kind	Flat bench (aluminum honeycomb)	Ordinary steel plate	Cast iron plate	Aluminum plate
Shape
Minimum	800 x 600	480 x 400	500 x 500	500 x 500
Maximum	6,000 x 2,000	1,000 x 700	2,400 x 1,000	2,000 x 1,000

Flat benches

The flat bench (aluminum honeycomb core) used as an optical vibration isolator or as a laboratory bench for optical experiments is a light-weight bench superior in stiffness, employing a magnetic stainless steel plate as the top surface and an ordinary steel plate as the bottom surface, which are connected entirely with an epoxy adhesive.

The top surface of the flat bench is uncoated. In addition, bases with a graded scale or special tapped hole and other modified benches are also available upon request.

Tapped hole structure of flat bench

A flat bench (aluminum honeycomb) used as an optical vibration isolator or as a laboratory bench for optical experiments normally has tapped holes. Flat benches are custom-made, depending on specifications for hole location and matrices such as (M6 XY 25 mm matrix), M4, M5, M6, and inch sizes are also available.

Table of the number of tapped holes on the top surface of the flat bench
Flat bench size (mm)	Distance between tapped holes XY on flat bench (whole area)			Flat bench size (mm)	Distance between tapped holes XY on flat bench (whole area)
	100mm	50mm	25mm		100mm	50mm	25mm
800 x 600	48	165	713	2,400 x 1,500	360	1,363	5,605
1,000 x 700	70	247	1,053	2,600 x 1,200	312	1,173	4,841
1,200 x 900	108	391	1,645	2,600 x 1,500	390	1,479	6,077
1,500 x 1,000	150	551	2,301	2,600 x 2,000	520	1,989	8,137
1,500 x 1,200	180	667	2,773	2,800 x 1,200	336	1,265	5,217
1,800 x 900	162	595	2,485	2,800 x 1,500	420	1,595	6,549
1,800 x 1,200	216	805	3,337	2,800 x 2,000	560	2,145	8,769
2,000 x 1,000	200	741	3,081	3,000 x 1,200	360	1,357	5,593
2,000 x 1,200	240	897	3,713	3,000 x 1,500	450	1,711	7,021
2,000 x 1,500	300	1,131	4,661	3,000 x 2,000	600	2,301	9,401
2,000 x 2,000	400	1,521	6,241	4,000 x 1,500	600	2,291	9,381
2,200 x 1,000	220	817	3,393	4,000 x 2,000	800	3,081	12,561
2,200 x 1,200	264	989	4,089	5,000 x 1,500	750	2,871	11,741
2,200 x 1,500	330	1,247	5,133	5,000 x 2,000	1,000	3,861	15,721
2,300 x 1,500	345	1,305	5,369	6,000 x 1,500	900	3,451	14,101
2,400 x 1,200	288	1,081	4,465	6,000 x 2,000	1,200	4,641	18,881

Kind of tap	M4	M5	M6	M8 (narrower)	M10 (narrower)	M12 (narrower)
Screw pitch (mm)	0.7	0.8	1.0	1.25 < 1.0 >	1.5 < 1.25 >	1.75 < 1.5 >

Trestle table

The trestle table used for the optical vibration isolator and the laboratory bench for optical experiments has legs and connecting pipes firmly connected by welding. Both legs and connecting pipes are made thicker to increase table stiffness.

Vibration absorption depends not only on the "precision air spring" used in the optical vibration isolator but also on the structure and the stiffness of the trestle table. The main purpose of the rectangular pipes connecting the legs is rather to prevent "distortion" of the trestle table, than to prevent collapse. Use of thinner rectangular pipes or a thin plate may decrease the primary resonance frequency of trestle table, making it vibrate sympathetically with the vibration frequency transmitted from the floor, dramatically impairing overall vibration absorption. Leveling bolts are one of the most important parts for supporting the weight of the flat bench and the devices thereon. The diameter (and the stiffness) of the bolts, which connect the trestle table to the floor, has a significant influence on the overall performance of the optical vibration isolator and laboratory bench for optical experiments. Trestle tables other than standard products are also available.

Carry-in cost

The optical vibration isolators and the laboratory benches for optical experiments are heavy-weight products, demanding a carry-in cost separately. In addition, vehicle, manpower, tools, and other equipment suitable for the site will be required during the carry in.

Vibration isolators and laboratory benches
Optical vibration isolators
Post systems
List of optical bench series products

SIGMA KOKI CO.,LTD.
Tokyo Head office
5F, SIGMA KOKI Tokyo Head office 1-19-9, Midori, Sumida-ku, Tokyo, 130-0021, JAPAN
TEL.+81-3-5638-8228 FAX.+81-3-5638-6550 international@sigma-koki.com
Osaka Branch
4-9-28 Nishi-Nakajima, Yodogawa-ku, Osaka 532-0011, JAPAN
TEL.+81-6-6307-4835 FAX.+81-6-6307-4834
Kyushu Sales Office
3-17 Hie-machi, Hakata-ku, Fukuoka 812-0014, JAPAN
TEL. +81-92-481-4300 FAX. +81-92-481-4310

Base Guide

Vibration isolators and laboratory benches

Table of the number of tapped holes on the top surface of the flat bench

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