R&D Center
This is the NSV R&D center, which leads technical
development in the noise, vibration, and shock fields.
New Product & Technology Development
New Product & Technology Development
New Product & Technology Development
New Product & Technology Development

Development of vibration isolation materials, facility vibration isolation equipment, silencers, water hammer cushions, execution of national research projects, complementation and improvement of products.

Anti-shock Products & New Technology Development
WIRE MOUNT
Shock Control
Product Introduction

As an isolator using elasticity and the damping effect of wire rope, this plays the role of a snubber that prevents vibration and a shock absorber that eases shock. Our company develops products that meet various needs by making mounts in various ways using such characteristics of wire rope. A useful mount that prevents vibration caused by exciting forces from being transmitted outside through a supporting part and reduces the dynamic displacement on equipment. Its softening characteristic, in which stiffness is reduced according to the increase of displacement, and the damping effect that occurs due to friction damping between wires are both excellent characteristics.

VWM type
VWR type
VWA type
VWS type
Anti-shock Product & New Technology Development
Isolator that can absorb shock as well as vibration at once
All materials are made of stainless steel for excellent corrosion resistance and rigidity
Surging does not occur due to the high damping function and the transmission rate of vibrations is minimized.
Stiffness can be changed according to design and handling methods.
Horizontal vibration is effectively controlled.
Excellent for blocking high-frequency cutoff effects of 100Hz and above
Excellent heat-resistance, ozone-proof, anti-corrosion, oil-resistance
Uses of Wire Mount
Equipment requiring vibration isolation for performance and dynamic stability
Equipment requiring shock-absorption
Precision equipment installed and moving inside a container
Precision equipment installed in submarines and ships
Air conditioning equipment installed on rooftop such as of cooling towers and freezers
Patent Registration
Registration No.: 10-1362924, 10-1362926, 10-1362927
Test
Test Result
Standardization
Model Dimensions, mm Max.
Dynamic
Travel, mm
Max.
Load, kgf
A B D C H Wire
VWM-04-100
VWM-04-200
VWM-04-300
125 110 6.5 45
55
65
35
45
55
4.0 13
16
30
90
60
50
VWM-05-100
VWM-05-200
VWM-05-300
125 110 6.5 45
55
65
35
45
55
5.0 13
16
30
200
140
90
VWM-06-100
VWM-06-200
VWM-06-300
150 134 6.5 60
70
80
50
60
70
6.0 15
25
35
240
170
110
VWM-08-100
VWM-08-200
VWM-08-300
190 170 8.5 80
100
120
70
90
110
8.0 25
45
65
270
200
160
VWM-10-100
VWM-10-200
VWM-10-300
250 230 8.5 110
130
150
90
110
130
10.0 50
60
75
300
240
150
VWM-12-100
VWM-12-200
VWM-12-300
250 230 8.5 130
150
170
110
130
150
12.0 55
70
95
600
550
400
VWM-16-100
VWM-16-200
VWM-16-300
320 280 Φ11.0 110
130
150
130
150
170
Φ22 55
70
95
1300
1000
800
VWM-22-100
VWM-22-200
VWM-22-300
420 380 Φ11.0 130
150
170
140
165
190
Φ22 50
70
90
1500
1300
1100
Vibration Isolation Products & New Technology Development
TOTAL DAMPER
Vibration Absorber
Lifetime

Damper is the general term that refers to things that eliminate vibration energy by converting it into liquid viscosity or material friction. Our company has developed an integrated total damper by combining a friction damper with excellent damping effect and a wire damper, complementing weaknesses and maximizing strengths. As a result of the dynamic characteristics, the damping effect and elasticity were doubled and anti-corrosion and durability were also improved as all materials were made of stainless steel. Also, it was designed for assembly to respond to various strokes and reaction forces.

Total Damper
Advantages of the Total Damper
Excellent damping effect in all frequency ranges
Constant damping effect regardless of the size of the vibration displacement
Structure that can change stroke and reaction force freely as required in design
Compact integrated structure
All materials are made of stainless steel for excellent corrosion resistance and durability.
Excellent heat-resistance, ozone-proof, anti-corrosion, and durability
Uses of Total Damper
Pipe with large thermal expansion deformation
Equipment with large dynamic displacement due to self-vibration
Securement of pipe soundness by controlling pipe dynamic displacement
Patent Registration
Registration No.: 10-1362938
Dynamic Property Test of Total Damper (VD10)
± 20mm excitation test result
Microvibration Isolation Product & New Technology Development
AIR SPRING MOUNT
Microvibration Control
Product Introduction

An air spring with excellent vibration insulation efficiency, usually used for controlling low vibration of 1㎛ or less and low frequency vibration less than 1㎛. The air spring is usually used in ultra precision equipment such as semiconductor equipment as its natural frequency is low and there is no surging. Our company is developing various kinds of air spring mounts using air elasticity in order to make the air spring used in various equipment. By damping equipment in various ways, it is promoting dynamic safety and quick stability of equipment without the installation of dampers. VAM Type is a closed air spring, which can be used easily without air line connection. It is suitable for damping precision equipment as it has a low natural frequency of 2.0 Hz or less. With its long stroke, VAB Type has been developed to be suitable for the vibration isolation of equipment with occasional heavy vibration. In particular, VZD type can have a more excellent effect than an active system as it can acquire a natural frequency of 1 Hz or less by applying the principle of negative stiffness.

VAD type
VAM type
VAB type
VZD type
Uses of Air Spring Mount
Precision semiconductor manufacturing equipment
Precision examination and measurement equipment such as 3D measurer or scanner
Vibration controller installed in FAB
Precision equipment that needs auto leveling
Equipment that requires blocking of surrounding vibrations
Patent Registration
Registration No.: 10-1362928, 10-1362930
Test
Test result
Standardization
Model Applied load, kgf Dimensions, mm
D1 D2 H L
VAD-120 300 120 120 160 170
VAD-180 800 150 180 220 220
VAD-240 1,500 220 240 300 290
VAD-300 3,000 270 300 300 350
VAD-380 5,000 350 380 300 430
VAD-500 10,000 460 500 300 550
VAD-680 20,000 640 680 300 730
Vibration isolation products and new technology development
OIL DAMPER MOUNT
Vibration Control
Product Information

This is an integrated mount that has an excellent effect on impact force and regular vibrations by combining only advantages of an oil-filled damper with those of springs and rubber. In the primary damping, impact vibration is dissipated into friction heat energy through oil and the primary regular damping of exciting force is reduced by rubber part and spring. The upper rubber part is manufactured with CR (neoperene) synthetic rubber, which has great oil and ozone resistance. As apical displacement of the spring occurs after product assembly, a low frequency of less than 5Hz can be maintained.

Uses of Oil Damper Mount
For high-efficiency vibration isolation of cooling tower
For vibration isolation of heavy and high-efficiency equipment (Semiconductor Production Line)
For vibration isolation of equipment with great impact vibration
For vibration isolation of equipment sensitive to ambient impact force and vibrations
Standardization
No. Product name Material Standard
1 Upper Cap CR&GC KS M 6617, KS D 4301
2 Middle Cap CR&GC KS M 6617, KS D 4301
3 Lower Housing SS40 KS D 3503
4 Coil Spring SUP9, HSW3 KS B 2402, KS B 2403
5 Non Skid Pad CR KS M 6617
6 Inner Damper GC KS D 4301
7 Damper Oil - FLUID OL
Model Rated Load, kgf Dimensions, mm
A B C D E Level Bolt
VDM-500 500 160 149 184 18 124 M12
VDM-1000 1,000 160 149 184 18 124 M12
VDM-1500 1,500 197 220 270 22 212 M20
VDM-2000 2,000 197 220 270 22 212 M20