Top 10 vacuum oil filter Factory in China 2026

Introduction to Vacuum Oil Filter

A vacuum oil filter is a crucial piece of equipment used for purifying and regenerating various types of oils, such as transformer oil, turbine oil, hydraulic oil, and lubricating oil. It works based on the principle of vacuum dehydration and degassing, along with filtration to remove impurities, moisture, gases, and other contaminants from the oil. By improving the quality of the oil, vacuum oil filters can extend the service life of the oil and the equipment that uses the oil, enhance the performance and reliability of the equipment, and reduce maintenance costs and downtime.

Top 10 Vacuum Oil Filter Factories in China

1. Kunhong (Shandong) Vacuum Technology Co., Ltd

Kunhong (Shandong) Vacuum Technology Co., Ltd is a leading manufacturer in the field of vacuum technology, especially in the production of high - quality vacuum oil filters. The company is committed to providing advanced and reliable solutions for oil purification and treatment.

Features in Vacuum Oil Filter:

• High - precision Filtration: Kunhong's vacuum oil filters are equipped with multi - stage filtration systems. The initial coarse filtration can effectively remove large particles of impurities, while the subsequent fine filtration can remove even the smallest contaminants, ensuring that the oil reaches a very high level of purity.
• Efficient Dehydration and Degassing: Using advanced vacuum technology, the filters can quickly and thoroughly remove moisture and gases from the oil. The high - vacuum environment accelerates the evaporation of water and the release of gases, improving the dielectric properties and oxidation stability of the oil.
• Intelligent Control System: The products are integrated with an intelligent control system that can monitor and adjust various parameters such as temperature, vacuum degree, and flow rate in real - time. This ensures the stable operation of the equipment and reduces the need for manual intervention.

Advantages of the Company:

• Strong R & D Team: Kunhong has a professional R & D team composed of experienced engineers and technicians. They are constantly exploring new technologies and improving product performance to meet the changing needs of customers.
• High - quality Manufacturing Process: The company adheres to strict quality control standards throughout the manufacturing process. From raw material selection to final product assembly and testing, every step is carefully monitored to ensure the reliability and durability of the products.
• Excellent Customer Service: Kunhong provides comprehensive after - sales service, including installation guidance, training, and maintenance. Their customer service team is always ready to respond to customers' inquiries and solve problems in a timely manner.

Website: https://www.vacuumtechglobal.com/

2. Zhengzhou Sanhui Co., Ltd

Zhengzhou Sanhui Co., Ltd has been in the industry for many years and has established a solid reputation in the production of vacuum oil filters.

Features in Vacuum Oil Filter:

• Customizable Designs: The company understands that different customers have different requirements for oil purification. Therefore, they offer customizable vacuum oil filter solutions. Whether it is for a small - scale industrial application or a large - scale power plant, they can design and manufacture filters that meet specific needs.
• Energy - efficient Operation: Their vacuum oil filters are designed with energy - saving features. Advanced pumping systems and optimized circuit designs reduce power consumption while maintaining high - performance operation. This not only helps customers save on energy costs but also conforms to the trend of environmental protection.
• Robust Construction: The filters are built with high - quality materials, ensuring long - term reliability and stability. The housing is made of corrosion - resistant materials, which can withstand harsh working environments and prevent damage to the internal components.

Advantages of the Company:

• Rich Industry Experience: With decades of experience in the field, Zhengzhou Sanhui has accumulated a wealth of knowledge and expertise. They can accurately understand customers' problems and provide effective solutions based on past projects.
• Wide Range of Applications: The company's vacuum oil filters are widely used in various industries, including power generation, petrochemical, and manufacturing. Their products have been proven to be effective in different working conditions, which reflects the versatility and adaptability of their technology.
• Good Market Reputation: Zhengzhou Sanhui has won the trust of many customers with its high - quality products and reliable service. Positive word - of - mouth has helped the company expand its market share both in China and abroad.

3. Nanjing Liansheng Electric Co., Ltd

Nanjing Liansheng Electric Co., Ltd is a well - known enterprise focusing on the production of electrical equipment, and its vacuum oil filters are highly regarded in the market.

Features in Vacuum Oil Filter:

• Advanced Oil Heating Technology: The vacuum oil filters of Nanjing Liansheng are equipped with advanced oil heating systems. These systems can heat the oil evenly and quickly, which is beneficial for the subsequent dehydration and degassing processes. The precise temperature control ensures that the oil quality is not affected by over - heating.
• Automatic Self - cleaning Function: To maintain the filtration efficiency, the filters are designed with an automatic self - cleaning function. This function can remove the accumulated impurities on the filter elements, reducing the frequency of manual cleaning and extending the service life of the filter elements.
• High - speed Circulation System: The high - speed circulation system in the filters can accelerate the purification process. It ensures that the oil passes through the filtration and purification units multiple times in a short period, improving the overall purification efficiency.

Advantages of the Company:

• Strong Technical Backup: The company has a close cooperation with many research institutions and universities. This allows them to keep up with the latest technological developments and apply new technologies to the production of vacuum oil filters.
• Stringent Quality Assurance: Nanjing Liansheng has a complete quality management system. All products undergo strict quality inspections before leaving the factory, ensuring that they meet national and international standards.
• Good After - sales Support: They provide 24/7 after - sales support to their customers. Whether it is a technical problem or a spare - part replacement, the company's service team can respond quickly and provide solutions.

4. Changzhou Hengrui Electric Co., Ltd

Changzhou Hengrui Electric Co., Ltd has been dedicated to the research, development, and production of vacuum oil filters for a long time.

Features in Vacuum Oil Filter:

• Compact and Space - saving Design: The company's vacuum oil filters are designed with a compact structure, which takes up less space in the workshop or installation site. This is especially beneficial for customers with limited space.
• Low Noise Operation: The filters are equipped with noise - reduction devices. During operation, the noise level is significantly reduced, creating a more comfortable working environment for the operators.
• High - performance Pumping System: The pumping system in the vacuum oil filters of Changzhou Hengrui is highly efficient. It can quickly create a high - vacuum environment, which is essential for the effective removal of moisture and gases from the oil.

Advantages of the Company:

• Focus on Innovation: Changzhou Hengrui invests a large amount of resources in research and development. They are constantly innovating and improving their products to meet the evolving market demands. New features and functions are continuously added to the vacuum oil filters.
• Skilled Workforce: The company has a group of skilled workers who are proficient in the production process. Their craftsmanship ensures the high quality and precision of the products.
• Competitive Pricing: Despite the high - quality products, Changzhou Hengrui offers competitive pricing. This makes their vacuum oil filters more accessible to a wider range of customers, especially small and medium - sized enterprises.

5. Wuhan Huatian Electric Power Automation Co., Ltd

Wuhan Huatian Electric Power Automation Co., Ltd is a professional manufacturer in the power automation field, and its vacuum oil filters are widely used in the power industry.

Features in Vacuum Oil Filter:

• Integration with Power Systems: The vacuum oil filters of Wuhan Huatian are designed to be easily integrated with power systems. They can communicate with other power equipment and control systems, enabling centralized management and monitoring.
• High - reliability in Power Applications: In the power industry, reliability is of utmost importance. The company's filters are designed to operate stably under high - voltage and high - temperature conditions, ensuring the continuous purification of transformer oil and other power - related oils.
• Remote Monitoring and Control: With the development of the Internet of Things (IoT) technology, Wuhan Huatian's vacuum oil filters support remote monitoring and control. Customers can monitor the operation status of the filters in real - time through a mobile app or a computer, and make adjustments if necessary.

Advantages of the Company:

• In - depth Understanding of the Power Industry: Having been in the power automation field for a long time, Wuhan Huatian has a deep understanding of the specific requirements and challenges in the power industry. This allows them to develop products that are highly suitable for power applications.
• Comprehensive Product Portfolio: In addition to vacuum oil filters, the company also offers a variety of other power - related products. This provides customers with a one - stop solution for their power system needs.
• Strong Brand Influence: Wuhan Huatian has a strong brand influence in the power industry. Their products are trusted by many power companies, which helps to expand their market share and enhance their competitiveness.

6. Shanghai Yousheng Electrical Equipment Co., Ltd

Shanghai Yousheng Electrical Equipment Co., Ltd is a leading enterprise in the production of electrical equipment, including vacuum oil filters.

Features in Vacuum Oil Filter:

• High - end Filtration Materials: The company uses high - end filtration materials in its vacuum oil filters. These materials have high filtration efficiency and good chemical stability, ensuring the long - term performance of the filters.
• Modular Design: The modular design of the filters makes them easy to install, maintain, and upgrade. Customers can add or remove modules according to their specific needs, which provides flexibility in the use of the equipment.
• High - pressure Resistance: The vacuum oil filters of Shanghai Yousheng are designed to withstand high - pressure conditions. This is important for applications in high - pressure hydraulic systems and other industrial processes where high - pressure oil needs to be purified.

Advantages of the Company:

• Location Advantage: Being located in Shanghai, a major economic and technological center in China, the company has easy access to advanced technologies, talents, and market information. This helps them to stay at the forefront of the industry.
• International Vision: Shanghai Yousheng has an international vision and is actively involved in international cooperation and trade. Their products are exported to many countries and regions, which reflects the high quality and competitiveness of their products in the global market.
• Strong Marketing and Sales Network: The company has established a wide - spread marketing and sales network both in China and abroad. This allows them to quickly respond to customer needs and provide timely services.

7. Guangzhou Tongchang Electric Equipment Co., Ltd

Guangzhou Tongchang Electric Equipment Co., Ltd has been making significant contributions in the field of vacuum oil filter production.

Features in Vacuum Oil Filter:

• Environmental - friendly Design: The company is committed to environmental protection. Their vacuum oil filters are designed to minimize waste generation and energy consumption. For example, the oil recycling system in the filters can reuse the filtered oil to the greatest extent, reducing the environmental impact.
• User - friendly Interface: The filters are equipped with a user - friendly interface. Operators can easily operate the equipment, monitor the operation status, and adjust the parameters through a simple touch - screen or control panel.
• High - efficiency Separation Technology: The advanced separation technology used in the filters can effectively separate different components in the oil, such as water, gases, and impurities. This ensures the high - quality purification of the oil.

Advantages of the Company:

• Local Market Penetration: Based in Guangzhou, a major industrial city in southern China, the company has a deep understanding of the local market. It can quickly respond to the needs of local customers and provide customized solutions.
• Cost - effective Solutions: Guangzhou Tongchang offers cost - effective vacuum oil filter solutions. They optimize the production process and material selection to reduce costs without sacrificing product quality, which is very attractive to price - sensitive customers.
• Good Technical Support: The company provides comprehensive technical support to its customers. Their technical team can provide on - site installation guidance, training, and troubleshooting services to ensure the normal operation of the equipment.

8. Xi'an Tianli Electrical Equipment Co., Ltd

Xi'an Tianli Electrical Equipment Co., Ltd is a well - established enterprise in the electrical equipment manufacturing industry, and its vacuum oil filters are known for their high quality.

Features in Vacuum Oil Filter:

• High - temperature Resistance: The vacuum oil filters of Xi'an Tianli are designed to operate at high temperatures. This is suitable for applications in high - temperature industrial environments, such as steel mills and foundries, where the oil needs to be purified under high - temperature conditions.
• Multi - function Integration: The filters integrate multiple functions, such as filtration, dehydration, degassing, and oil regeneration. This all - in - one design simplifies the oil purification process and reduces the need for multiple pieces of equipment.
• Long - term Stability: The company focuses on the long - term stability of the products. Through strict quality control and reliable component selection, the vacuum oil filters can operate stably for a long time, reducing the frequency of maintenance and replacement.

Advantages of the Company:

• Rich Cultural and Technological Heritage: Located in Xi'an, a city with a long history and rich cultural and technological heritage, the company can draw on the local resources and innovation atmosphere. This helps to promote the development and improvement of its products.
• Strong R & D Investment: Xi'an Tianli invests a large amount of capital in research and development. They are constantly exploring new materials and technologies to improve the performance and quality of their vacuum oil filters.
• Good Customer Relationship: The company attaches great importance to customer relationships. They maintain close communication with customers, listen to their feedback, and continuously improve their products and services based on customer needs.

9. Shenyang Huaxin Electric Co., Ltd

Shenyang Huaxin Electric Co., Ltd has been actively involved in the production of vacuum oil filters for many years.

Features in Vacuum Oil Filter:

• High - flow Capacity: The company's vacuum oil filters are designed with a high - flow capacity. This is suitable for large - scale industrial applications where a large amount of oil needs to be purified in a short period.
• Anti - corrosion Treatment: The filters undergo anti - corrosion treatment on the surface. This protects the equipment from corrosion in harsh working environments, such as in chemical plants and offshore oil platforms.
• Easy Maintenance: The design of the filters takes into account the convenience of maintenance. The filter elements can be easily replaced, and the internal components are accessible for inspection and repair.

Advantages of the Company:

• Industrial Base Advantage: Shenyang is an important industrial base in China. The company can take advantage of the local industrial resources, such as raw materials and manufacturing facilities, to ensure the stable production and high quality of its products.
• Experienced Management Team: Shenyang Huaxin has an experienced management team that can effectively organize production, R & D, and sales. Their management skills contribute to the overall development and success of the company.
• Stable Supply Chain: The company has established a stable supply chain for raw materials and components. This ensures the timely production and delivery of products, reducing the waiting time for customers.

10. Chengdu Hongxing Electric Co., Ltd

Chengdu Hongxing Electric Co., Ltd is a rising star in the vacuum oil filter manufacturing industry.

Features in Vacuum Oil Filter:

• Novel Design Concept: The company adopts a novel design concept in its vacuum oil filters. The appearance of the filters is more modern and aesthetically pleasing, and the internal structure is more optimized for better performance.
• High - precision Sensors: The filters are equipped with high - precision sensors that can accurately monitor various parameters such as oil temperature, pressure, and impurity content. This real - time monitoring helps to ensure the safe and efficient operation of the equipment.
• Compatibility with Different Oil Types: Chengdu Hongxing's vacuum oil filters can be used to purify different types of oils, including transformer oil, turbine oil, and hydraulic oil. This versatility makes them suitable for a wide range of applications.

Advantages of the Company:

• Innovation - driven Development: The company is committed to innovation - driven development. They encourage employees to come up with new ideas and solutions, and continuously invest in research and development to improve product performance.
• Good Talent Recruitment and Training: Located in Chengdu, a city with a rich talent pool, the company can recruit high - quality talents. They also provide regular training to employees to improve their skills and knowledge, which is beneficial for the long - term development of the company.
• Growing Market Share: With its high - quality products and innovative marketing strategies, Chengdu Hongxing has been continuously expanding its market share. It is gradually becoming a well - known brand in the vacuum oil filter industry.

Conclusion

The above - mentioned top 10 vacuum oil filter factories in China in 2026 represent the high - end level of the domestic vacuum oil filter manufacturing industry. Each company has its own unique features and advantages in terms of product technology, design, and market competitiveness. From the well - established enterprises like Zhengzhou Sanhui and Nanjing Liansheng to the rising stars like Chengdu Hongxing, they all play important roles in meeting the diverse needs of different industries for oil purification.

With the continuous development of industry, the demand for high - quality vacuum oil filters is expected to increase. These factories will continue to invest in research and development, improve product performance, and expand their market share. At the same time, they will also face challenges such as intense market competition and the need to comply with more stringent environmental regulations. However, with their strong technical strength, innovative spirit, and excellent service, they are well - positioned to overcome these challenges and contribute to the development of the vacuum oil filter industry in China and even in the world.