Mayekawa is a Japanese company that has been operating for nearly 100 years. They provide industrial refrigeration systems using natural refrigerants like ammonia. In China, Mayekawa has multiple branches and subsidiaries. They have experience installing ammonia refrigeration systems for food processing and cold storage facilities. Mayekawa sees opportunities to promote safer ammonia use in China by educating customers and using newer low-charge ammonia system designs.

2. Safe use of NH3 in China’s Cold Chain Industry
MAYEKAWA CHINA

3. Company introduction MAYEKAWA
• Established :1924
• Headquarter :14-15, Botan 3, Koto-ku, Tokyo Japan
• Annual Turnover : 200 Billions JPY
• Employees :Japan:2,500 / Overseas:1,500
• Business Range
Ø Industry refrigeration and gas compression system for chemical field
Ø Cooling processing equipment for Dairy, Seafood, Meat and Beverage etc.
Ø Refrigeration system for Cold-chain
Ø Heat pump and Ice bank system
Ø Other energy-save system

4. Company introduction MAYEKAWA CHINA
BEIJING
BRANCH
SHANGHAI
(HEADQUARTER)
QINGDAO
BRANCH
GUANGZHOU
BRANCH
DALIAN
BRANCH
MAYEKAWA CHINA INDUSTRIES LTD.,CO.
MAYEKAWA CHINA MFG. LTD.,CO.

5. CUSTOMER : CP QINHUANGDAO
TYPE : FOOD PROCESSING
SYSTEM : NH3 PUMP
Company’s projects with Natural Refrigerants in China
CUSTOMER : DALIAN ZHANGZIDAO
TYPE : SEAFOOD LOGISTICS
SYSTEM : NH3/CO2 PUMP

6. CUSTOMER : CP QINGDAO
TYPE : FOOD PROCESSING
SYSTEM : NH3 PUMP
Company’s projects with Natural Refrigerants in China
CUSTOMER : DALIAN TIANBAO
TYPE : SEAFOOD LOGISTICS
SYSTEM : NH3/CO2 PUMP

7. CUSTOMER : CP XIANGYANG
TYPE : FOOD PROCESSING
SYSTEM : NH3 PUMP
Company’s projects with Natural Refrigerants in China
CUSTOMER : QINGDAO ASKA
TYPE : FOOD PROCESSING
SYSTEM : NH3/CO2 PUMP

8. Company’s view on the current state of ammonia use in
China
uMany old plants use ammonia in dangerous running and
consider to change refrigerant from ammonia to Freon;
u Many limitation for the new plants use ammonia, such as the
total volume of Ammonia should be less than 40 tons,
Ammonia should not be used in case of the volume of the
fishery vessel’s cold storage is above 500m3 ;
uMore and more low charge NH3 system used, such as
NH3/CO2 system.

9. Company’s suggestions for promoting safe and proper
use of ammonia in China

10. Company’s suggestions for promoting safe and proper
use of ammonia in China
Machinery Room
Indirect (Brine) Cooling System
Compressor
Evaporator
Expansion Valve
Condenser
Ammonia Refrigerant
Relief Valve
Relief valve purge piping
NH3 HANDLE UNIT
Purge to AIR
After Neutralization
DUCT
Emergency Generator

11. Company’s suggestions for promoting safe and proper
use of ammonia in China
NH3 Handle Unit
SOPProtective Suit
NH3 Sensor
Vibration
Sensor
Relief Valve Purge Piping
Emergency Generator

12. Company’s current activities promoting safe and proper
use of ammonia in China
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13. Company’s current activities promoting safe and proper
use of ammonia in China
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14. Company’s current activities promoting safe and proper
use of ammonia in China
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15. Company’s current activities promoting safe and proper
use of ammonia in China
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16. Company’s current activities promoting safe and proper
use of ammonia in China
South
Polar