Support for Heavy-Load / Floor SeismicIsolation

Seismic Isolation Module
Model TGS
To help ensure business continuity
when earthquakes strikeSeismic isolation for individual server computersor for the entire floor of your operations center:
optimal protection tailored to your needs.

The TGS offers access to a whole new level of earthquake readiness,further improving your prospects for seamless business continuity.
By combining the capabilities of a damping device and the superior performance of
THK's LM Guide—a key component with a proven record in the field of industrial
machinery, including semiconductor production equipment—the TGS can support
loads up to 3,000 kgf per square meter, providing protection for server computers,
precision instruments, Artworks, and other vital assets. It can also provide seismic
isolation for the entire floor of a server room or operations center.

1

Seismic Isolation Module_TGS

Seismic isolation is now available for the entire ﬂoor.

2

TGS module (partially disassembled)

Seismic Isolation Module Model TGS Features
Seismic isolation in a compact package
The TGS provides the support, recovery, and damping
functions required for effective seismic isolation, delivered in a compact module: 500mm (w) x 500mm (d) x100mm (h). Its lightweight die-cast aluminum frame
enables high-precision motion.

Handles heavy loads and pulling force
Thanks to the use of LM Guides, TGS modules not only
accommodate heavy loads but also resist floating whenpulling force is applied. Each module can bear an evenly
distributed load of up to 750 kgf, enabling this model toaccommodate evenly distributed heavy loads up to 3,000
kg f p e r s q u a re m e te r. ( W h e n d e a li n g wi th a m o reconcentrated load, please consult THK.)

1,000mm

1,000mm

Maximum load: 750kgf/m 2
1 Bearing module,
3 Linking modules
1,000mmSee page 5 for details
on these two types ofTGS modules.

Countless possible configurations
TGS modules can be configured to accommodate
loads of almost any shape or form. The smallest possible configuration, two modules on each side, measures
1,000mm x 1,000mm; an unlimited number of modules
can be connected.

3

1,000mm

Maximum load: 3000 kgf/m2
4 Bearing modulesEasy to install
The TGS arrives fully assembled and ready to set up.
The compact size and lightweight construction of themodules makes them easy to configure and install.

Seismic Isolation Module_TGS

Core technology:
The world-renowned LM Guide in industrial
devices.

Model TGS sample configuration (load weight: 750 kgf/m 2)

THK LM Guides, the Seismic Isolation Module's corecomponent, turn linear motion into rolling motion, reducing friction resistance and deftly deflecting earthquake tremors. Since its introduction in 1972, the LM
Guide has radically improved the capabilities of mechatronics devices and is now employed around the world
as the de facto standard for manufacturing equipment and machine tools.

LM Guides

Optimal seismic isolation

Resists twisting

Seismic response analysis, which takes into account factors such as setup location, load weight, and anticipatedseismic vibrations, makes it possible to deliver optimal
seismic isolation with the TGS.

The high rigidity of its well-connected surfaces, together
with the use of LM Guides in the moving elements, ensure
there will be virtually no twisting even when a moderatelyeccentric load is applied.

Seismic response analysis
and shaking test results㻖㻓

㻖㻓

(cm)
㻕㻓㻔㻓

㻔㻓

㻓㻓㻐㻖㻓

㻐㻕㻓

㻐㻔㻓

(cm)

㻕㻓㻓㻔㻓㻕㻓㻖㻓㻐㻖㻓㻐㻕㻓㻐㻔㻓㻓㻐㻔㻓㻐㻔㻓㻐㻕㻓㻐㻕㻓㻐㻖㻓

Seismic response analysis㻔㻓

㻕㻓㻖㻓

㻐㻖㻓

Shaking test
Unbalanced-load test

Seismic wave used: Taft 1952 (EW), generated at 4:52 a.m.,
July 21, 1952. Magnitude 7.7. Standardized wave, based on
50cm per sec.

Broad versatility
The dimensions of TGS modules match those of standard 500mm x 500mm floorpanels, making it easy to provide seismic isolation for flooring in server rooms,
operation centers, and other locations housing vital equipment. Their low 100
mm height makes them suitable for use older in buildings with lower ceilings.

Seismic Isolation Modules installed under flooring4

Seismic Isolation Module Model TGS
Technical Data
FrameStructure

Made of die-cast aluminum for light weightand precision motion.

PulleyThe module’s motion is transmitted
to the damper using a timing belt.

Disk damper
Seismic energy is damped by
viscous material incorporated
into the lower section of thepulley.

LM Guide
The incorporation of crossed LM Guides enables the module
to glide back and forth and side to side, deflecting earthquake
vibrations.

Tension spring
Returns the frame, which shifts in response to seismic
vibrations, to its original position.
THK's patented Model TGS Seismic
Isolation Module

Module Types
Bearing module● Supports the load.

Linking module● Connects bearing modules.

● Recovery and damping functions can be adjusted to suit locationand load weight.

Linking module

Module Sample configuration
Easy to connect. Surface
structure ensures high rigidity.

Bearing module5

Seismic Isolation Module_TGS

Dimensions
Bearing module

1009500
4×100＝400100482

50

215

215

1001005035

9950

482

3550

Linking module

500
4×100＝4009Type482

500
4×100＝400

4-M12 depth 15

482

500
4×100＝4004-M12 depth 15

215

215

Dimensions

4-M8 depth 10

4-M8 depth 10

4×5-9 cut

4×5-9 cut

35215

215
215

215

37100
37 26 3735500mm (w) × 500mm (d) × 100mm (h)500mm (w) × 500mm (d) × 37mm (h)Maximum
displacement±250mmーLoad weight

750 kgf per module, maximumーHorizontal

Orientation

approx. 19kg

Module weight

Large-scale shaking
table test

approx. 9kgHorizontal acceleration

833 cm/s → 150 cm/s (about one-sixth of input)

For the test the Great Hanshin Earthquake
seismic wave was replicated. Shaking wasreduced to about one-sixth of input.

22TestMaximum acceleration (cm/s2)

1,000

Earthquake

Measuring point

Great Hanshin Earthquake,Jan. 17, 1995, as recordedat the JMA Kobe

Top of shaking tableTGS surface

Max. acceleration (cm/s2)
North-south

Up-down

Test

833
150

400
393

Analysis

126-Horizontal acceleration

7505002500-126-250-150

Acceleration atop shaking table
Response acceleration atop TGS
Time-history response analysis-500-750-1,000-833

05

1015Time (seconds)

202530

Testing agency: Urban & Housing Technology ResearchInstitute, Urban Renaissance Agency.

6

Seismic isolation for the entire floor
Scenarios for seismically isolated floors

7Seismic Isolation Module_TGS

Sample installation

Fixed floor

Seismically isolated floor

Buffer zone
Buffer zone

Seismically isolated floor

Buffer zone

Mortar used to balance themodule on an uneven surface
20 100 180

Fixed floor

Wiring space

500

500

500
2,550500

Fixed anchor

Fixed floor

500

Buffer zone

8

Seismic isolation just where it's needed

Seismically isolated server computers at fire department headquarters

9 pairs of TGS modules

Steel plate mounted on steel frame (optional)

TGS modules

Complete setup
ServerSeismicallyisolated table
for server racks

Fixed floor

20 100125

Fixed floor

350
500
Opening for wiring

9500

500

500

500

500

500

500

500

350

Mortar used to balance themodule on an uneven surface

Seismic Isolation Module_TGS

Seismically isolated semiconductor manufacturing equipment
Linking module

2,050

Bearing module

1,550

TGS module configuration

Semiconductor manufacturing device
Weight: 2 tons
TGS modules

TGS: 12-module configuration (3 x 4)

10Seismic Isolation Module Model TGS
Safety precautions

Warranty

Use of Seismic Isolation Modules• Please read the instruction manual carefully before using the SeismicIsolation Module.
• Do not dismantle or attempt to modify the Seismic Isolation Module.
Any such action could cause the product to malfunction.
• Seismic Isolation Modules are designed for indoor use only.
Setup• To prevent the possibility of injury during an earthquake, make surethere are no objects within the product's range of motion (themaximum displacement stated in the catalog) and that all personnel
stay clear as well.
• To ensure proper performance, make sure the load is within the weight
range stated in the catalog. Do not load the product with any object
that has a high center of gravity or that would topple if pushed.
• For proper seismic isolation, the product must be placed on a level,even surface; placement on a slanted or uneven surface could cause
misalignment, undue strain or irregular movement. When dealing withslanted or uneven surfaces, please obtain professional assistance orconsult your local distributor.
In the event of an earthquake• If a seismic tremor occurs, move away from Seismic Isolation Modules
immediately to prevent any possibility of injury through accidental
contact with a moving module.
• If an earthquake of intensity-level 6 or greater (on the Japanese scale)occurs, review the post-setup checklist in the instruction manual following
the earthquake and follow the directions provided.

(1) This product is designed to attenuate horizontal seismic
smic motion; it is not inon. This product will retended to be effective against vertical seismic motion.
t, but there is no guaranduce the effect of tremors on an object loaded onto it,tee that the object will not move or topple.
oduct is designed to ab(2) In the event of seismic motion stronger than this productpper, exerting an impact
sorb, the modules can be expected to strike the stopper,
on any object atop the modules.
Warranty period
The warranty period is one year from the date of delivery.
Scope of warranty
ic Isolation Module. It does
This warranty covers repairs to or replacement of a Seismicerruption of business activinot cover accidental damage, loss of business profits, interruption
se of this product or due toties, loss or alteration of data, or the like, arising from the use
the product being out of service.
Disclaimer
tion arising from any of theTHK is not liable for any Seismic Isolation Module malfunction
following:nt or disaster.
• Tsunami, lightning, flooding, fire, or another such accidente.
• Damage to or collapse of a building due to an earthquake.
• Damage caused by the actions of a third party, intentional orr unintentional misuse of thermal conditions.
product by the customer, or use of the product under abnormal
ange stated in the product• Loading of an object that is not within the load weight range
specifications.
• Seismic input exceeding the product capacity stated in the specifications or inputcifications.
exceeding the maximum displacement stated in the specifications.
• Damage to an object located within range of maximum displacement or caused by
the presence of an object that obstructs the product's movement.
• Loading of an object that does not conform to the stated
ted restrictions concerning
loads.
• Placement or setup of a Seismic Isolation Module other than in conformity with theinstructions for correct placement and setup set forth in the instruction manual.

• LM Guide, Ball Retainer, and are registered trademarks of THK CO., LTD.
• Discrepancies may exist between photographic representations of products and the products themselves.
duct.
• Modifications may be made, without prior notice, to a product's appearance and specifications; please consult THK before using the product.
ors or omissions.
• Great care has been taken in the preparation of this brochure. Nevertheless, THK is not liable for damages arising from typographical errors
ation to the export of• THK observes a policy of full compliance with the Foreign Exchange and Foreign Trade Act and other relevant laws and regulations in relation
THK products and technology and to export-related sales activities. Please consult THK in advance concerning the export of individualproducts.

All rights reserved.

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