Vibration isolation for equipment installed in office building ceilings – JSH series

JSH and JS installation can eliminate complaints about vibration from ceiling equipment. Furthermore, they are low cost and can resolve causes of concern after installation.

Features of the JSH series

• JSH installation significantly reduces the vibrations on desks in offices which could not be solved with conventional rubber vibration-isolating materials, promising a comfortable environment.
• Frequency of vibration which can be felt physically is 16Hz at its peak, which is reduced by 16.0 (dB). The annoyance of vibration on desks can be solved to the point which the vibration becomes unnoticeable after replacing the JSH (spring).。

Comparison of JSH and rubber vibration-isolating material/p>

The graph below shows the measurement results before/after the rubber vibration-isolating materials were replaced with JSH in response to complaints which were voiced immediately after completion (moving in) at an office in central Tokyo.

• Vibration acceleration level（dB）
• Frequency（Hz）

Example of vibration-isolating material installation

※Applications：Ceiling-embedded type air-conditioner, total heat exchanger, duct, fan coil unit, compact fan, small-diameter piping, etc.

• Horizontal piping
• Duct
• Air blowers

• Natural frequency = approx. 4Hz
• Natural frequency = approx. 3Hz
• Natural frequency = approx. 3Hz
• Natural frequency = approx. 4Hz