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Vibration/Shock& Isolation Product
GT Serial Vibration/Shock Isolating Device
1. Product Features
        GT Serial vibration/shock isolating device are low-frequency vibration isolation systems that consist of a low- frequency vibration isolation structure with non-linear softened stiffness, a.k.a. compound damper. They can counteract the impact on machine and electronic device introduced by medium/low-frequency vibration and structural noise. Vibration attenuation rate can be as high as -30dB, and shock isolation rate can be 95% and above.
        3-dimensional anti-shock restriction structure prevents damage to the device caused by external heavy shock, thus system stability is increased.
        The product is made of high-strength, anti-corrosion materials, so that it comes with strong environmental adaptability.
        They can be used for vibration/shock isolation and structural noise reduction in all types of large/medium equipments and common platform system.
GTA Vibration/Shock Isolating Device
GTB Vibration/Shock Isolating Device
2. Structural Data
Model a1 a 2 a 3 b b 1 b 2 h 1 h2 d 1 d 2
GTA200 145 240 60 545 350 290 295 180 4-M20 8-M12
GTB300 260 240 60 350 200 266 156 4-M20 8-M12
GTB500 260 240 60 350 200 256 156 4-M20 8-M12
3. Technical Data
Model Load
(kg)		 Average Stiffness (N/mm) Peak Response Frequency
(±0.5Hz)		 Vibration Transmission Rate(≤) Absorbed Energy
(J)		 Peak Value Magnification
(≤)		 Weight (kg)
x y z x y z x y z x y z
GTA200 180-220 117 66 66 4.5 3.5 3.5 0.1 0.05 0.05 100 200 200 1.5 73
GTB300 250-300 154 86 86 5.9 4.4 4.4 0.2 0.1 0.1 200 300 300 2 45
GTB500 400-500 228 123 123 5.5 4 4 0.15 0.1 0.1 250 350 350 2 48

4. Model Selection & Installation Guide
1. Model of the product is chosen according to weight and type of the device.
2. In order to improve isolation effect when active vibration isolation is involved, natural disturbance frequency of the device itself should be clearly differentiated from peak response frequency of the vibration isolation system.
3. Vibration isolators should be evenly mounted under the base of the device in order to make sure that stiffness center of the supporting system matches mass center of the device, which helps to eliminate coupling of vibration.
4. Restriction structure should be adjusted carefully in three dimensions during installation so that space buffer in all dimensions can be evenly allocated.

5. Industrial Standard
GJB4000-2000   General Norms for Vessel  
SJ20593－96      The General Specifications For All-Metal Wire Cable Vibration Isolator 
GJB150-86        Environment Test Methods for Military Device
GJB 6412-2008  Specification For  Wire-Cable Vibration Isolator Of Ships
("GJB" means military standard. Equivalent foreign standards are MIL－STD－810(US),  MIL－S－901(US), BV0440/85(GER) and BV0430/85(GER).)