Case Study – Ningbo Andatong Vehicle Fittings Co.,Ltd.

Ningbo Andatong Vehicle Fittings Co.,Ltd., founded in 1989 and located in Yuyao, Zhejiang Province, is a limited liability company specializing in the manufacturing of auto parts, mechanical components, and hardware. The company provides OEM support to several domestic automobile manufacturers, with some products also exported to Europe, the U.S., Germany, and Japan. It has been recognized as a High-tech Enterprise, a Technology-based SME, and a Specialized and Innovative SME.

The company’s original air compressor setup was overly complex, and the compressed air system was poorly designed, leading to management difficulties and high electricity costs. As a result, they turned to us for a complete air system upgrade.

Customer Challenges Before the Upgrade:

1. The air compressor configuration is complex and difficult to manage

2. The pipeline design is unreasonable and has leakage points

3. Excessive moisture in the workshop

4. A lot of waste heat generated by the air compressors

①Electricity costs make up an excessive share of production costs, severely squeezing profit margins

②Environmentally unfriendly

 

Deman’s engineers worked together closely, conducting in-depth site surveys and investigations within the factory. They carefully tested various performance indicators of the compressed air station and precisely collected a large volume of operational data. Through simulation tests and repeated comparisons of all data points—leaving no detail overlooked—they went through multiple rounds of optimization and refinement, and ultimately finalized a scientifically sound and highly practical system upgrade solution.

Deman's Air System Comprises of:

1. Conducted a thorough survey, provided optimized compressed air solutions

2. Customized Deman energy-saving air compressors

3. 5DV PM VSD refrigerated air dryers

4. Aluminum alloy piping system

5. Heat recovery system to reduce energy loss and boost overall system efficiency

In just three months, the factory saw a significant improvement in overall efficiency, with the air compressor system achieving an impressive energy savings rate of 23.8%. The investment is expected to pay for itself within one year.

 

After Installation of Deman System:

√ The system runs stably, efficiently, and is easy to operate

√ Continuous supply of free hot air, heat, and hot water

√ No more moisture in the workshop

√ Annual heat recovery system savings≈245,000 RMB

√ Annual carbon reduction≈270 tons

√ Equivalent to planting 15,000 trees