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In factories experiencing high temperatures due to abnormal weather, a fundamental soundproofing solution that balances compliance, manufacturing efficiency, and cost measures is necessary. Thus, a specialized soundproofing service for "air compressors" has been established. For factories, manufacturers, and printing companies wondering where to seek help, please feel free to utilize our service. 【Service Overview】 ■ Target Buildings: Factories using air compressors ■ Delivery Time: Approximately 2 to 3 days ■ Target Areas: Entire Kanto, Tokai, and Kinki regions *Additional travel costs will apply for areas outside of the above. *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

At Sun-O Corporation, we have been involved in the design and construction of various soundproofing projects, including well-known skyscrapers, famous hotels, factories, hospitals, and commercial facilities. "We can identify hidden issues just by looking at the blueprints" and "We quickly propose realistic soundproofing measures" — a group of soundproofing professionals. In this special feature page, our representative, Okuzawa, will introduce the "Key Points for Smart Soundproofing Measures." We invite you to read it. [Contents (Partial)] ■ What are Smart Soundproofing Measures? ■ Problems Caused by Manufacturer-led Soundproofing Projects ■ Excellent Soundproofing Measures are Determined 80% by Noise Measurement ■ Accurate Analysis Results and High Proposal Ability for Soundproofing Measures ■ 180,000 Past Noise Calculations *For detailed information, please refer to the related links. *Please see our construction examples in the PDF materials.

• Noise Inspection

We received a request for noise control measures for the air conditioning equipment in the warehouse office located in the Tokyo metropolitan area, and we have addressed it. It seems that many logistics facilities, including warehouses, are transitioning to operations that run from early morning to late at night, or even 24 hours a day, leading to an increase in the operation of air conditioning units during early morning and late night hours. To prevent any disruption to machine maintenance, we installed a door at the front. The soundproofing effect is a reduction of 15dB. 【Overview】 ■ Construction Date: October 2018 ■ Purpose: Soundproofing of cooling towers for power transmission and transformation equipment ■ Objective: Reduction of noise generated during equipment operation ■ Soundproofing Effect: 15dB reduction ■ Region: Metropolitan area *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

We would like to introduce a case of noise control measures for high-voltage transformer facilities at a plastic parts manufacturing factory located in Gifu Prefecture. High-voltage transformer facilities used in factories generate a certain level of "hum" and "vibration." Although it is not as loud as the noise from engines or generators, consideration for nearby residents during late-night hours is necessary, which is why we received this request. As a countermeasure, we installed a soundproof wall measuring approximately 13 meters in width and 3 meters in height to prevent sound from leaking outside. This achieved a soundproofing effect of 7 dB. 【Overview】 ■ Construction Date: January 2019 ■ Purpose: Soundproofing for a plastic parts factory ■ Soundproofing Effect: 7 dB reduction ■ Location: Gifu Prefecture *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

Here is an example of noise reduction measures taken for solar power generation power conditioners. More companies are shifting a portion of their power consumption to solar energy, and a common concern is the high-frequency noise generated by power conditioners. While it is not particularly loud, many people find it unpleasant. We received a request from such a company and took action. By securely guarding the soundproof wall with sound insulation sheets, sound-absorbing materials, and iron plates, we expect a noise reduction effect of about 10dB. 【Overview】 ■ Construction Date: March 2019 ■ Purpose: Noise reduction measures for solar power generation power conditioners ■ Aim: Soundproofing against high-frequency noise generated by machinery ■ Noise Reduction Effect: Approximately 10dB ■ Region: Tohoku region *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

We would like to introduce a case study of a "Precision Machinery Enclosure" designed to eliminate air vibrations caused by external sounds to the utmost extent when precision machinery is in operation. Since it is tailored to meet the specific needs of our customers, manufacturing is carried out after thorough discussions, design, prototyping, and testing from the development stage. The request from the user of the enclosure we are introducing this time was to reduce the sound in the 125Hz range by 20%. After multiple tests and trial and error, we provided a confident product from Sun-O. [Overview] ■ Construction Date: August 2019 ■ Purpose: Soundproofing for precision machinery ■ Soundproofing Effect: In this case, a 20dB reduction in the 125Hz range ■ Estimate: To be discussed *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

We received a request from a certain school for soundproofing measures for the operating noise of an air-cooled heat pump chiller, and we responded accordingly. We installed a soundproof wall in a U-shape around the target equipment to reduce its operating noise, with dimensions of approximately 7.5m x 5.5m x 3.6mH. The soundproof wall is made of durable Galvalume steel, making it suitable for outdoor use. Additionally, the soundproofing effect varies greatly depending on where the wall is installed, so we conduct noise measurements in advance and provide an optimal soundproofing plan. 【Overview】 ■ Construction Date: October 2019 ■ Purpose: Attenuation of noise from the air-cooled heat pump chiller ■ Performance/Request: -10dB attenuation effect ■ Location: Tokyo *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

Our company, with 30 years of experience, accurately understands your business type and measures everything from air conditioning equipment, exhaust ducts, drainage noise, and boiler noise to everyday sounds. We achieve high-precision measurements with a high-level noise measurement system. We can instantly capture vast and precise data, enabling various analyses. We also propose soundproofing measures that balance effectiveness and cost, so please feel free to consult us. 【Features】 ■ Over 12,000 successful noise measurements ■ Implementation as soon as the next day ■ Careful reporting of measurement results on-site ■ Well-versed in noise-related laws and regulations ■ Proposals for suitable soundproofing plans based on noise measurements *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

Our company specializes in soundproofing work for a wide range of projects, including trendy skyscrapers, factories and research facilities of major manufacturers, as well as famous hotels, educational institutions, public facilities, and residential complexes. With a vast database and years of experience, we verify suitable soundproofing construction within soundproofing technology. We actively adopt new soundproofing technologies such as sound absorption, sound insulation, reflection, and vibration prevention, and we propose plans that achieve high effectiveness and low costs through the combination of technologies. 【Features】 ■ Over 6,000 cumulative achievements ■ Thorough noise measurement and noise calculation ■ Proposal of soundproofing construction plans based on a vast measurement database ■ Adoption of new soundproofing technologies ■ High effectiveness and low costs achieved through the combination of technologies *For more details, please refer to the PDF materials or feel free to contact us.

• Noise Inspection

Our company designs silencers that can accommodate various applications and usage conditions, leveraging years of experience and developed technology. We employ a unique technology that achieves sound reduction through a delicate balance of sound reflection, sound absorption, sound insulation, and vibration damping. We address customer challenges such as, "I need a compact custom design because the space is limited," and "I want a high-performance soundproofing device at the lowest possible cost." 【Features】 ■ Allows air to pass while eliminating sound ■ Achieves energy savings ■ Reduces sound through a balance of reflection and absorption, enabling miniaturization ■ Highly flexible design tailored to installation locations ■ Shortened delivery times *For more details, please refer to the PDF document or feel free to contact us.

• Noise Inspection

We recommend soundproofing work using our "Sun-O Original Soundproof Wall" for those troubled by noise. We conduct noise measurements in advance and verify the structure of the noise source. We will present an appropriate soundproofing plan. Additionally, the soundproof walls we use are made of Galvalume steel, which, due to its high durability, is suitable not only for outdoor exposure to wind and rain but also for harsh environments. 【Benefits / Performance】 ■ Easy to install ■ Can be installed both outdoors and indoors ■ Highly durable, suitable for use in harsh environments ■ Relatively low cost ■ Typical soundproof walls reduce noise from 80 decibels to 65 decibels *For more details, please download the PDF or feel free to contact us.

• Noise Inspection