Countering Extreme Factory Heat with 'Virtually Zero Cooling Costs'! Mayekawa Mfg. Co. Strengthens Proposals for 'ZERO-Cool'
Mayekawa Mfg. Co., a company manufacturing and selling various industrial machinery including industrial refrigerators with over 40% global market share, is strengthening its deployment of "ZERO-Cool." This solution simultaneously addresses extreme heat in factories, energy saving, and CO₂ emission reduction, leveraging heat pump technology to achieve virtually zero cooling costs by reusing exhaust heat.
📋 Article Processing Timeline
- 📰 Published: April 27, 2026 at 22:00
- 🔍 Collected: April 27, 2026 at 13:31
- 🤖 AI Analyzed: April 27, 2026 at 14:11 (39 min after Collected)
Mayekawa Mfg. Co., Ltd. (Head office: Koto-ku, Tokyo; Representative Director and President: Makoto Maekawa; hereinafter “the Company”), which manufactures and sells various industrial machinery, including industrial refrigerators boasting over 40% global market share (※1), and handles plant design and construction, will strengthen the deployment of its “ZERO-Cool” solution. This solution simultaneously addresses extreme heat in factories, energy saving, and CO₂ emission reduction.
Heatstroke prevention measures are now a “duty”
Due to recent record-breaking heatwaves, it is not uncommon for temperatures in manufacturing sites to exceed 40℃, leading to serious concerns such as “it's too hot to work.” To rectify these harsh working environments, the “Revised Industrial Safety and Health Regulations” will come into effect in June 2025. Measures for hot environments are now mandatory with penalties, meaning heatstroke prevention is no longer merely a goal to strive for, but a minimum duty that companies must fulfill.
On the other hand, measures like wearing air-conditioned clothing or installing spot coolers do not provide a fundamental solution. Furthermore, cooling an entire large factory incurred challenges such as significant equipment investment and running costs.
Therefore, the Company proposes “ZERO-Cool,” an innovative solution that simultaneously performs “cooling” and “hot water supply” by utilizing heat pump technology.
Features of “ZERO-Cool”
“ZERO-Cool” is a heat pump system that supplies cool air to factories while effectively utilizing the exhaust heat (waste heat) generated in the process as energy to produce hot water. The basic concept of this system is to aim for “virtually zero” electricity costs for cooling, depending on conditions, by allocating the fuel consumption savings from hot water boilers to the electricity costs of the heat pump.
System image of “ZERO-Cool”
This “heat reuse” provides the following three values to manufacturing sites:
1. Reduction of Running Costs
By reallocating fuel savings to electricity costs through energy management, the system contributes to compressing the overall running costs of the factory. Compared to conventional systems that combine cooling equipment and boilers, an approximate 55% (※2) cost reduction is expected.
2. Decarbonization Effect
By converting from fossil fuels to highly efficient heat pumps, energy is utilized efficiently. By performing cooling and hot water supply simultaneously with one unit, an approximate 61% (※2) reduction in CO₂ emissions is expected compared to conventional systems.
3. Consistent Improvement of On-site Environment
Even in vast manufacturing areas, it supplies powerful cool air over a wide range, much like a “large spot cooler.” It has been confirmed to lower indoor temperatures in installed manufacturing areas by up to 6.6℃ and remove approximately 27L of humidity per hour, providing a dehumidifying effect. On-site workers have also highly praised its comfort, with comments such as “the humidity went down, and skin stickiness disappeared” and “it's cooler, and work efficiency has improved.”
※1 According to our research (as of December 2024)
※2 Based on our trial conditions (production status, fuel unit price, CO₂ emission factor of a certain導入事例)
Future Outlook
Moving forward, the Company will actively promote the introduction of “ZERO-Cool” to customers nationwide facing heat countermeasures challenges, leveraging its network of 54 locations across the country. We will support the creation of comfortable environments for people working in manufacturing sites, and contribute to “sustainable factory creation” that simultaneously achieves energy cost reduction and environmental impact reduction.
[Related Links]
・ZERO-Cool Case Studies
・Air source heat pump unimoAW
Mayekawa Mfg. Co., Ltd.
We are an industrial machinery manufacturer headquartered in Koto-ku, Tokyo. We engage in integrated operations from manufacturing and sales of industrial refrigerators, heat pumps, and food processing machinery, to plant design, construction, and after-sales service. More than 100 years have passed since Kisaku Mayekawa founded the company on May 15, 1924. We are a global company with bases worldwide, excelling in cooling technology.
・Location: 3-14-15 Botan, Koto-ku, Tokyo 135-8482
・Founded: May 15, 1924
・Capital: 1 billion yen
・Representative: Makoto Maekawa, Representative Director and President
・URL: https://www.mayekawa.co.jp
Keywords:
Heatstroke prevention measures are now a “duty”
Due to recent record-breaking heatwaves, it is not uncommon for temperatures in manufacturing sites to exceed 40℃, leading to serious concerns such as “it's too hot to work.” To rectify these harsh working environments, the “Revised Industrial Safety and Health Regulations” will come into effect in June 2025. Measures for hot environments are now mandatory with penalties, meaning heatstroke prevention is no longer merely a goal to strive for, but a minimum duty that companies must fulfill.
On the other hand, measures like wearing air-conditioned clothing or installing spot coolers do not provide a fundamental solution. Furthermore, cooling an entire large factory incurred challenges such as significant equipment investment and running costs.
Therefore, the Company proposes “ZERO-Cool,” an innovative solution that simultaneously performs “cooling” and “hot water supply” by utilizing heat pump technology.
Features of “ZERO-Cool”
“ZERO-Cool” is a heat pump system that supplies cool air to factories while effectively utilizing the exhaust heat (waste heat) generated in the process as energy to produce hot water. The basic concept of this system is to aim for “virtually zero” electricity costs for cooling, depending on conditions, by allocating the fuel consumption savings from hot water boilers to the electricity costs of the heat pump.
System image of “ZERO-Cool”
This “heat reuse” provides the following three values to manufacturing sites:
1. Reduction of Running Costs
By reallocating fuel savings to electricity costs through energy management, the system contributes to compressing the overall running costs of the factory. Compared to conventional systems that combine cooling equipment and boilers, an approximate 55% (※2) cost reduction is expected.
2. Decarbonization Effect
By converting from fossil fuels to highly efficient heat pumps, energy is utilized efficiently. By performing cooling and hot water supply simultaneously with one unit, an approximate 61% (※2) reduction in CO₂ emissions is expected compared to conventional systems.
3. Consistent Improvement of On-site Environment
Even in vast manufacturing areas, it supplies powerful cool air over a wide range, much like a “large spot cooler.” It has been confirmed to lower indoor temperatures in installed manufacturing areas by up to 6.6℃ and remove approximately 27L of humidity per hour, providing a dehumidifying effect. On-site workers have also highly praised its comfort, with comments such as “the humidity went down, and skin stickiness disappeared” and “it's cooler, and work efficiency has improved.”
※1 According to our research (as of December 2024)
※2 Based on our trial conditions (production status, fuel unit price, CO₂ emission factor of a certain導入事例)
Future Outlook
Moving forward, the Company will actively promote the introduction of “ZERO-Cool” to customers nationwide facing heat countermeasures challenges, leveraging its network of 54 locations across the country. We will support the creation of comfortable environments for people working in manufacturing sites, and contribute to “sustainable factory creation” that simultaneously achieves energy cost reduction and environmental impact reduction.
[Related Links]
・ZERO-Cool Case Studies
・Air source heat pump unimoAW
Mayekawa Mfg. Co., Ltd.
We are an industrial machinery manufacturer headquartered in Koto-ku, Tokyo. We engage in integrated operations from manufacturing and sales of industrial refrigerators, heat pumps, and food processing machinery, to plant design, construction, and after-sales service. More than 100 years have passed since Kisaku Mayekawa founded the company on May 15, 1924. We are a global company with bases worldwide, excelling in cooling technology.
・Location: 3-14-15 Botan, Koto-ku, Tokyo 135-8482
・Founded: May 15, 1924
・Capital: 1 billion yen
・Representative: Makoto Maekawa, Representative Director and President
・URL: https://www.mayekawa.co.jp
Keywords: