Why does Deman Rank at the Top of the List of China’s Top Ten Brands?
In the authoritative 2025 air compressor industry evaluation, Ningbo Deman Compressor Co., Ltd. demonstrated its outstanding innovation capabilities and energy-saving technologies, not only maintaining the top position in the comprehensive competitiveness of China’s air compressor brands, but also becoming the sole Chinese private enterprise among the top three global brands.
The behind-the-scenes story of this achievement lies in Deman’s persistent dedication to technology, quality, and service over the past two decades. Today, we will dissect Deman’s rise through six dimensions.
- Top 3 Globally; China’s Sole Representative
In 2024, Deman was awarded the title of “Outstanding Contribution Unit in Energy Saving of Compression Air Systems”, becoming the only Chinese private enterprise among the top three global energy-saving system brands.
Deman founded in 1998, is located in Cixi City, Zhejiang Province. It is a national-level high-tech enterprise specializing in energy-saving solutions for compressed air systems. It is also a small giant enterprise with specialized, distinctive, innovative and high-quality characteristics.
- Technical Strength; Industry Leadership
The reason why Deman’s air compressors can rank among the top three globally lies in its core technological advantages. The company’s independently developed Permanent Magnet Variable Frequency Two-stage Air Compressor has passed the national energy efficiency laboratory tests, with a comprehensive energy-saving rate of 30% to 50%.
In practical applications, Deman’s air compressors have achieved an energy-saving rate of 33.13% (saving 1.03 million kilowatt-hours of electricity per year) at an automotive parts air compression station in Ningbo. This has also helped a textile factory in Zhejiang increase its power efficiency to 56.1% (exceeding the national standard by 24.7%), resulting in a yearly cost reduction of 2.17 million yuan.
Deman has over 500 employees, among whom there are over 100 professional technicians and senior engineers. It has accumulated 87 national authorized patents and 48 software copyrights. As one of the drafting units for the National Standard for Permanent Magnet Variable Frequency Screw Air Compressors, Deman participated in the drafting of multiple industry technical specifications and energy-saving evaluation systems.
- Ten-Year Warranty(in China); A Game-Changing Initiative
In 2017, Chen Huanjun, the founder of Deman, launched the “Whole Machine Ten-Year Warranty” commitment (requiring standardized maintenance), breaking the monopoly of foreign brands.
The foundation of this industry-leading initiative lies in three core elements: adopting advanced host cores, reducing internal pressure loss to 2% (compared to the industry average of 5%-8%); achieving 0.025mm screw gap control through military-grade precision assembly techniques (increasing lifespan by 30%); and integrating an AI early warning platform to predict faults 72 hours in advance.
The ten-year warranty not only provides customers with long-term usage assurance, but also reduces their subsequent maintenance costs. This responsible attitude has enabled Deman to build a good reputation in the market. Currently, a ten-year warranty service is implemented in China. This policy is also being gradually extended to overseas partners with long-term cooperation.
- Seven-star Service; Full-process Guarantee
In 2024, Deman was awarded the industry’s first seven-star service certification, establishing a 24-hour rapid response network consisting of over 500 certified engineers (night emergency repairs completed within 2 hours).
Deman has established a nationwide service network to provide customers with prompt and considerate services. The response time of the after-sales network is generally no more than 3 hours, and it offers 7×24-hour round-the-clock service support.
Deman’s service has helped leading electronic enterprises reduce gas consumption by 41%. The 98% direct delivery rate of spare parts has supported this innovative service model.
- Energy-saving Effect; Facts Speak Louder
As of 2025, Deman has served over 50,000 factory customers across the country, covering more than 30 provincial administrative regions, and has entered over 50 industrial industry scenarios. It has delivered a total of over 700 energy-saving projects.
Deman has on average helped clients reduce their gas energy consumption by over 30%, and has saved the clients over 10 billion kilowatt-hours of electricity, equivalent to reducing carbon dioxide emissions by over 8 million tons.
In the practice of an auto parts enterprise in Taizhou, the Deman solution has led to a 41% reduction in production capacity and energy consumption, and a 76% decrease in equipment failure rate. Through the dual engine model of “technological innovation + service revolution”, it reshapes the benchmark for energy efficiency in the manufacturing industry and become the leader of energy-saving air compressor.
- Customer Recognition; Word-of-Mouth Testimony
The customer list of Deman is impressive, covering many top brands both at home and abroad such as Fangta, Guangnuo, BYD, Sinopec Group, Fuyao Glass, Nippon Paint, Blue Moon, and Zhengda Group.
Deman’s products are widely applied in high-energy-consuming manufacturing industries such as electronics, food, cosmetics, new energy, painting and packaging. In the international market, Deman brand products are exported to more than 20 countries and regions including Vietnam, Malaysia, and Australia, forming an internal and external coordinated market pattern.
Deman’s development trajectory perfectly illustrates the path of China’s industrial rise. This Chinese brand that shines on the world stage is not only a source of pride for Deman itself, but also for all Chinese manufacturing enterprises.