Seismic Isolation for Servers and Devices

Seismic Isolation Table Model TSD
Business continuity measure for when earthquakes strike

Deflect earthquake tremorsand carry on with business.

Deflect earthquake tremorsand carry on with business.

Superior stability andhigh load capacity

A table that stays on

Stable movement is achieved by having balls roll throughgrooves in the rail. This structure can support loads
approximately 13 times higher than mechanisms utilizing
contact with a flat surface.

The table is kept in place by LM Guide units that canwithstand pulling loads, so it will not come off.

Load

Ball Contact Structure
LM block

Loadx13
LoadBall(steel bearing)
LM rail

LoadFourgroove
structure

Flat surface(point contact)

Round groove(surface contact)
LM Guide

Example cross-sectional
structure of an LM GuideFeaturing the LM Guide Prized for Its Success in Industrial Machinery,
THK's Seismic Isolation Table Easily Deflects Earthquake Tremors.
THK's seismic isolation table is a type of rolling seismic isolation system that combines perpendicular LM
Guide units, which achieve smooth linear motion. By deflecting earthquake tremors with its smooth,
360° movement, this product provides superior seismic isolation and maintains a consistent position
relative to the floor even during intense or prolonged tremors.
Earthquakes last around 30 seconds along plate boundaries, and even local earthquakes continue foraround 10 seconds. Torsion would be applied to the table if the loaded object’ s center of gravity were notcompletely aligned with the center of the seismic isolation table, but LM Guide units are used in the drive
portion to prevent this from happening.
By deflecting tremors when the worst happens, seismic isolation systems allow you to continue running
your business. That’s why it's important to choose an earthquake-proofing system that will always
demonstrate a stable seismic isolation effect.

The LM Guide is a core component of the system.

Perpendicular LM Guide units provide smooth movementin every direction for a range of 360°. This product also
handles drawing force and twisting, protecting the loaded
items from earthquakes with stable, smooth motion.

Stable seismic isolation with no tilting or twisting
The system moves smoothly and demonstrates stable seismic isolation performance even if the loaded weight changes orobjects are placed off-center.
Before an earthquake

Even with an eccentric load...

During an earthquake...it slides smoothly.

No wobbling or turning!

Deflect tremors with THK technology
Special Features of the Seismic Isolation Table Model TSD
Flexible Options to Suit the Application
ModelStroke

Mounted load

Damping function

TSD-1000/1200±200 mm

300 kg to 1200 kg

Available as an option

TSD-1200L±250 mm

400 kg to 1200 kg

Standard equipment• Modules can be connected and added to carry increasingly heavy loads.
• The pitch between modules can be changed depending on the number and size of loaded objects.

NarrowWide

Two-module
conﬁguration

Example diﬀerence in pitch
between modules
Three-module conﬁguration

Six-module conﬁguration(connecting and adding modules)

This easy-to-install earthquake protection is also easy to add onto later.

Easy Home Return with Built-In Restoring Function
Position-restoring springs are built into all four corners, enabling the system to move back to home position
through the restoring force of the springs.

Position-restoring spring3

Simple Construction and Restoration• The low height of the device makes it easy to secure clearance between the loaded object and the ceiling.
• The space between the modules can be used to provide underﬂoor wiring and air intake/exhaust for loaded devices.
Protective V-shaped cable slots are provided so you can use the cable supports for wiring and keep cables from breaking.

Cable supports

Space between modules
Protective V-shaped cable slot

In motion

Height: 90 mm (TSD-1200L is 115 mm)

Safe and Secure
The system can be installed simply by placing it on the ﬂoor, with no need for securing.
However, it can be secured to the ﬂoor if needed, and loaded objects can also be fastened.

Simply set in place to install

Upper table screw holes(for securing wires, etc.)

Lower table fastening holes

Environmentally Friendly
RoHS Compliance
The steel plate coating has a baked ﬁnish, and there are no components with electrolytic zinc plating.
The position-restoring springs have anti-whisker plating.

4Installation Examples
Server Computers
The Seismic Isolation Table Model TSD has been extremely successful as an earthquake-proofing measure for server racks.

Data Centers

Cable and Wiring Installation
The space between the modules canbe used to provide underfloor wiring forservers.

Six-module configuration (front) and five-module configuration (right)
Four-module configuration

Seven-module configuration

Five-module configuration

Modules are structured for connection, so they can be added or built onto existing units without
having to remove any wiring.

5

Examples of Loaded Object Fastening

Rack Adjuster Wire-Fastening Specifications
Loaded racks can be secured with wires that areprovided as standard.

Upper Steel Plate and Fastener Specifications (Special Option)
Fasteners and stabilizers can also be used for fastening.

6Installation Examples
Medical Devices
The Seismic Isolation Table Model TSD has been highly effective at earthquake-proofing devices in medical and researchfacilities that provide emergency and life-saving services during earthquakes.
Clinical diagnostic analyzer
Dialyzer (six-module configuration)

Medicine shelf

Tabletop microscope

Precision Equipment
Earthquake-proofing is an important factor in maintaining supply chains. The Seismic Isolation Table Model TSD
demonstrates results as an earthquake-proofing measure that is easy to install.

Optical measuring instrument

7

Optical measuring instrument(four-module configuration)

Art Museums
The greatest threat to important cultural assets and works of art with historical value is the risk of toppling or breaking from anearthquake. The Seismic Isolation Table Model TSD works the moment you install it on the floor and provides major
protection.

National treasures (from left): wooden statues of Fudo Myo-o and two youths, wooden statueof Amida Nyorai, and wooden statue of Bishamonten (sculpted by Unkei), Ganjoju-in Temple(Izunokuni, Shizuoka Prefecture)

The Warrior of Capestrano
National Archaeological Museum of Abruzzo,Italy

Statues of Amida Nyorai and Two Flanking Attendants, Kannami Buddha Statues Museum(Tagata District, Shizuoka Prefecture)

Xerox Alto

Jomon Goddess

Yakushi Nyorai Seated Statue
Kannami Buddha Statues Museum(Tagata District, Shizuoka Prefecture)8

Structure

Upper table

Connector bars
Lower table

Position-restoring spring

LM Guide
Protective V-shaped cable slots

Example Configurations

TSD

TSD

Access panel

TSD

Access panel

Access panel
Base frame

Free-standing

9Mounting base frame

Multiple connected tables

Demonstration Test Data
Full-scale testing of the Seismic Isolation Table Model TSD was conducted with multiple patterns of earthquake motion.
・The following is example test data. (Input waveform: Acceleration of upper part of vibration table, Response waveform:
Acceleration of TSD upper surface)TSD-1200 Sample of Great Hanshin-Awaji Earthquake (wave measured at Kobe Marine Meteorological Observatory)
Loaded device: One server rack (W 650 × D 1100 × H 2080, 800 kg)
10

East–West Direction

North–South Direction
10

Input waveform
Response waveform2420-2-4-66420-2-4-6-8-8-10

Input waveform
Response waveform

8Acceleration (m/s )62Acceleration (m/s )80510152025Time (s)303540-1045

051015202530

3540

45

Time (s)TSD-1200L Great East Japan Earthquake (Tsukidate wave)
Loaded device: Two server racks (W 700 × D 1050 × H 2000, 500 kg)
30

East–West Direction

30

Input waveform
Response waveform
2100

100-10-10-20-20-30

Input waveform
Response waveform

20

Acceleration (m/s )2Acceleration (m/s )20North–South Direction

0100200300400-300Time (s)100200300400Time (s)Model Number Coding
Modules can be added or connected to the Seismic Isolation Table Model TSD in accordance with the loadeddevice. In addition, the pitch between modules can be adjusted between 0 mm to 400 mm (in 50 mm pitch intervals).

Model Number Coding

TSD -1200L- M6
Model No.

No. of modules* M6 indicates a six-module configuration.
* No symbol is used for a two-module configuration.

Pitch between modules
Module10

Dimensions* and Specifications*Dimensional diagrams show a two-module configuration

Connectable model
TSD-1000

TSD-1200

800 to 1200

800 to 1200
0 to 400

4002×8-M80 to 400★

4005701190

380200200

Main unitdimensions(Unit: mm)

1000200110

★

400

200

2×8-M8400110

Model

100

90

90100

Module size

400（W）×1000（D）×90（H）

4 0 0（W）× 1 1 9 0（D）× 9 0（H）

Table mass

90 k g/ 2 mod ule s

110 kg/2 modules

Seismic isolation effectAcceleration of 0.2 G or less in response to input acceleration of 0.8 GDirection

Horizontal (X/Y direction)

Maximum displacement±200 mmLoad

3 0 0 k g t o 1 2 0 0 k g / 2 m o du l e sTrigger

S el e c t a bl e ( c h o o s e f ro m Tr i g g e r-A, B, o r C )Fastening

N o n e ( c a n be a n c h o re d)★ Pitch between modules can be adjusted between 0 mm to 400 mm (in 50 mm pitch intervals).
Standard pitch is 200 mm for TSD-1000 and 400 mm for TSD-1200/1200L.

Seismic Isolation Table Fastening Methods
The Seismic Isolation Table Model TSD can be fastened to a base frame or supporting surface.
Use the mounting holes on the lower table to secure the unit with bolts. (4 locations per module)
TSD-1000/1200

２×４− 15

11TSD-1200L

２×４− 15

Product Photo

Connectable model400

400★

3502281190

350

2×8-M8800 to 1200
0 to 400131

TSD-1200L

125

115

Upper connector bar (30×30)

Lower connector bar (25×25)
40 0（W）×1190（D）×115（H）
120 k g/ 2 mod ule s
Acceleration of 0.3 G or less in response to input acceleration of 1 G
Hor izonta l ( X/ Y d ire c tion)± 250 m m
40 0 k g to 1200 k g/ 2 mod ule s
Trigger- C b uilt in (8 p e r 2 mod ule s )A nc hor s (re c omme nd e d )Installation Area and Stroke
The Seismic Isolation Table Model TSD deflects tremors in a horizontal direction by allowing the table to move within
the maximum displacement range. Therefore, you must leave an empty space equal to or greater than the maximum

R200

displacement in all four directions when installing the system. Reference the diagram below when securing the area.

StrokeRegular stroke

200 mm（250 mm）
Trigger-C stroke

Reduced stroke

ModuleStroke

190 mm（250 mm）

Stroke200 mm（250 mm）

StrokeParentheses indicate
TSD-1200 dimensions.

Notes about TSD-1000/1200:
When using Trigger-C, the stroke in the R direction only will be reduced to ±190 mm.
When using Trigger-A, the trigger has a protruding part, so please secure a 235 mm space.

12

Standard Options
Seismic Isolation Table Model TSD Triggers
Triggers are optional components that hold the seismic isolation table in place when no earthquakes arehappening. Two main types are available: an external attachment type (Trigger-A or Trigger-B) and a built-in typewith a damping effect (Trigger-C).
* The standard TSD-1200L comes with Trigger-C. (Trigger-A or B cannot be selected.)
Recommended
External attachment type

Name
Trigger-A

Built-in type
Trigger-B

Trigger-C
Sliding material

Specifications
Earthquake-detecting lockrelease function

Single-use

Features

Lock automatically releases
when an earthquake is detected

Single-use resin trigger

Operatingconditions

Minimum number used is 2.
After activation,
can be manually reset repeatedly.

Minimum number used is 4.
Must be replaced once activated.

Minimum number used is 2.
(No action required after an earthquake.)

Holding force

Approx. 50 N/1 trigger

Approx. 75 N/1 trigger

Approx. 100 N/1 trigger

Built-in sliding function
Built-in sliding mechanism acts as a trigger
when idle (holds the system in place)and provides a damping effectwhen activatedNote 1: Each type of trigger can be retrofit onto existing Seismic Isolation Model TSD units. Contact us for details.
Note 2: The number of triggers used varies depending on the number of modules and mounted load. Contact us for details.

Special Options (Build-to-Order)

Upper Steel Plates, Base Frames, and MoreA steel plate can be added to suit the application and specifications of the loaded object.
Fasteners for loaded objects and underfloor base frames are also available for manufacture. Contact us for details.
Upper Steel Plate Example

Full surface type

Cutout type (one side)

Base Frame Example

Base frame

13

With seismic isolation tables installed

Components and Accessories②③①①④⑥⑦⑤⑧⑨②① Module (with fasteners and mounting bolts)② Connector bars

③ Rubber sheets* Please use bolts to fasten the modules and connector bars
together during installation.

⑤ Hex wrenches④ User manual⑥ Floor-marking tape
⑦ Cable supports and mounting bolts⑧ Wire-fastening bolts⑨ Wires (with sleeves)

Related Products

Seismic Isolation Module Model TGS
The Seismic Isolation Module Model TGS can bearranged in any configuration. It can support heavyloads, covering an entire floor or one specific area.
(Load capacity: 3000 kg/1 m2 max.)

THK's Seismic Isolation Table Model VIT
for Display Cases
This thin product only needs to be set in place
to function, no fastening required. Four sizes
are available to match standard display casedimensions. It can be used for a variety of otherapplications, too.
Sizes range from 600×600 to 1200×1200.

NEW14

Seismic Isolation Table Model TSD
Precautions on Use● This product is designed to attenuate horizontal seismic motion; it is not intended to be effective against verticalseismic motion. This table will reduce the effect of tremors on an object loaded onto it, but there is no guaranteethat the object will not move or topple.
● In the event of seismic motion stronger than this product is designed to absorb, the module can be expected tostrike the stopper, exerting an impact on any object atop the module.
● Injuries may occur if people enter or objects are placed within the seismic isolation table’ s range of motion (themaximum displacement given in the catalog) and the seismic isolation table activates during an earthquake.
● Please read the instruction manual carefully before using the Seismic Isolation Table.
● "LM Guide" and "Caged Ball" are registered trademarks of THK CO., LTD.
● Discrepancies may exist between photographic representations of products and the products themselves.
● Modifications may be made, without prior notice, to a product's appearance and specifications; please consult THK before using
the product.
● Great care has been taken in the preparation of this brochure. Nevertheless, THK is not liable for damages arising fromtypographical errors or omissions.
● THK observes a policy of full compliance with the Foreign Exchange and Foreign Trade Act and other relevant laws andregulations in relation to the export of THK products and technology and to export-related sales activities. Please consult THK inadvance concerning the export of individual products.
All rights reserved

Contact us with technical inquiries about seismic isolation+81-3-5730-3866 ACE Division
See our seismic isolation website for more details.

www.menshin.biz/?q=eng

2-12-10 Shibaura, Minato-ku, Tokyo 108-8506, Japan
CATALOG No.A-10-11E ©THK CO., LTD. 202401