Case Study - Sunny Precision (Electric Vehicle Parts Industry)

Ningbo Sunny Precision Industry Co., Ltd., located in Yuyao, Zhejiang Province, was established in 2002 and is part of Sunny Group, which founded in 1984 and recognized as China’s largest integrated optoelectronic enterprise.

Sunny Precision specializes in the design, development, and manufacturing of automotive functional components.

Compressed air serves as the primary power source in Sunny Precision’s production processes, widely used in mold machining, precision injection molding, assembly, and painting. With the deepening partnership with Deman and the technological upgrades of its new facility, Sunny Precision has set higher standards for the compressed air system in their new factory.

 

Customer Challenges Before the Upgrade:

1.High energy consumption

2.Loud noise

3.Compromised air quality with high moisture and oil content

4.Slow after-sales service response

To address the pain points of the compressed air system in the old factory, we focused on the following key aspects during the customized design process based on the customer's specific needs.

Deman's Air System Comprises of:

 

1. Deman Energy-saving Ultra-high Efficiency Air Compressors

① Withstands high pressure and high temp

② Strong operational stability

③ Long service life

 

2. 5DV Intelligent PM VSD Refrigerated Air Dryer with Heat Recovery System

① Excellent water removal capability with stable PDP

② Maximizes efficiency utilization

 

3.Large-diameter Low-pressure Drop Filters with Zero-air-consumption Drainage System

① Optimized configuration design

② Minimized energy consumption

 

4."Deman Cloud" intelligent control system

① Real-time monitoring

② Promptly identify issues and optimize system operation

 

Through a series of energy-saving devices and pipeline optimizations, Deman built Zhejiang’s first "Class 1 Energy Efficiency Compressed Air Station" in the electric vehicle parts industry for Sunny Precision.

The station delivers outstanding energy-saving results, significantly reducing the overall cost of compressed air in production, while contributing to the achievement of China’s dual carbon goals.

 

After Installation of Deman System:

√ Power transmission efficiency reaches 61.7%, exceeding the Class 1 energy efficiency standard by 12.18%

√ Annual electricity savings＞510,000 kWh

√ Annual carbon reduction＞483 tons

√ Equivalent to planting 120,000 trees

☆ Zhejiang’s first "Class 1 Energy Efficiency Compressed Air Station" in the electric vehicle parts industry.