2025 Best 10 long tooth Factory in China

Dec 10, 2025

Introduction to Long Tooth

Long tooth, in different industrial and technological contexts, can refer to a variety of products. In the field of mechanical engineering, long - tooth parts are often gears or cutting tools with long teeth. These components play a crucial role in power transmission, material cutting, and processing. They are widely used in industries such as automotive manufacturing, aerospace, and machinery production. The design and manufacturing quality of long - tooth products directly affect the performance, efficiency, and reliability of the entire equipment. High - quality long - tooth products require advanced manufacturing technologies, precise processing equipment, and strict quality control systems.


Top 10 Long Tooth Factories in China

1. Jiangxi Aili New Material Technology Co., Ltd

Jiangxi Aili New Material Technology Co., Ltd is a high - tech enterprise at the forefront of long - tooth product innovation. The company is committed to the research, development, production, and sales of new materials and high - precision long - tooth products.


  • Product Introduction: Their long - tooth products are mainly gears made from high - performance alloy materials. These gears are designed with long and precisely machined teeth to ensure smooth and efficient power transmission. They have excellent wear resistance, high strength, and can operate under high - load and high - speed conditions.
  • Technological Advantages: The company has introduced advanced production equipment from abroad, such as multi - axis machining centers and precision grinding machines. These machines can achieve micron - level machining accuracy, ensuring the high quality and consistency of long - tooth products. In addition, the company has a professional R & D team composed of senior engineers and material experts. They continuously explore new materials and manufacturing processes to improve the performance of long - tooth products.
  • Quality Control: Jiangxi Aili New Material Technology Co., Ltd has established a strict quality control system in accordance with international standards. From raw material procurement to finished product inspection, every link is strictly monitored. The company uses advanced testing equipment, such as coordinate measuring machines and hardness testers, to ensure that each long - tooth product meets the high - quality requirements.
  • Website: You can find more information about the company and its products on their official website: https://www.ailiget.com/


2. Shanghai Gear Works Co., Ltd

Shanghai Gear Works Co., Ltd has a long - standing history in the gear manufacturing industry. It was established several decades ago and has gradually developed into a large - scale enterprise with advanced production technology and a complete product line.


  • Product Range: The company produces a wide variety of long - tooth gears, including spur gears, helical gears, and bevel gears. These gears are used in different fields, such as automotive engines, industrial machinery, and wind power generation. For automotive applications, their long - tooth gears can provide stable power transmission, reduce noise, and improve fuel efficiency.
  • Manufacturing Process: Shanghai Gear Works Co., Ltd adheres to a strict manufacturing process. First, they select high - quality steel materials from well - known domestic and foreign suppliers. Then, through forging, machining, heat treatment, and surface treatment processes, the long - tooth gears are gradually formed. The forging process can improve the internal structure of the gear, enhancing its strength. Heat treatment can adjust the hardness and toughness of the gear, while surface treatment can improve its corrosion resistance.
  • Market Reputation: The company has a good reputation in the domestic and international markets. Its products are exported to many countries and regions, such as Europe, America, and Southeast Asia. The company has won many awards for its high - quality products and excellent after - sales service. It has established long - term cooperative relationships with many well - known enterprises, which also reflects the trust of customers in its products.


3. Tianjin Hengsheng Gear Co., Ltd

Tianjin Hengsheng Gear Co., Ltd focuses on the production of high - precision long - tooth gears for special applications. The company is located in Tianjin, a major industrial city in China, which provides it with convenient transportation and a complete industrial supporting system.


  • Specialized Products: The company's long - tooth gears are mainly used in high - precision equipment, such as medical instruments, optical instruments, and precision measuring equipment. These gears require extremely high precision and surface quality. Tianjin Hengsheng Gear Co., Ltd uses advanced grinding and polishing technologies to ensure that the tooth profile accuracy and surface roughness of the gears meet the strict requirements of these special industries.
  • Research and Development Capability: The company attaches great importance to research and development. It has established a R & D center in cooperation with several domestic universities and research institutions. Through continuous innovation, the company has developed a series of new - type long - tooth gears with high performance, such as low - friction and high - anti - fatigue gears. These new products have filled the domestic gap in some fields and have a strong competitive advantage in the international market.
  • Quality Management System: Tianjin Hengsheng Gear Co., Ltd has passed international quality management system certifications, such as ISO9001. The company's quality management system covers all aspects of production, from raw material inspection to product packaging and storage. By strictly implementing quality management, the company ensures the stability and reliability of its long - tooth products.


4. Chongqing Gearbox Co., Ltd

Chongqing Gearbox Co., Ltd is a large - scale enterprise specializing in the production of gearboxes and long - tooth gears. It has a large production base and advanced production equipment.


  • Product Application: The long - tooth gears produced by the company are mainly used in its gearbox products. These gearboxes are widely used in heavy - duty machinery, such as mining equipment, construction machinery, and port machinery. The long - tooth gears in the gearboxes need to withstand high torque and heavy loads, so the company uses high - strength alloy steel and advanced heat treatment processes to ensure their performance.
  • Production Scale and Efficiency: With its large - scale production base, the company can achieve mass production of long - tooth gears and gearboxes. The company has introduced an advanced production line, which can improve production efficiency and reduce production costs. At the same time, the company also pays attention to the improvement of production flexibility, which can quickly respond to different customer needs.
  • After - sales Service: Chongqing Gearbox Co., Ltd provides comprehensive after - sales service. It has a professional after - sales service team, which can provide on - site installation, debugging, and maintenance services for customers. The company also provides long - term technical support and spare parts supply, ensuring the normal operation of customers' equipment.


5. Dalian Huarui Heavy Industry Group Co., Ltd

Dalian Huarui Heavy Industry Group Co., Ltd is a well - known heavy - industry enterprise in China. It has a strong R & D and production capacity in the field of long - tooth products.


  • Large - Scale Long - Tooth Products: The company is capable of producing large - scale long - tooth gears and gear racks. These products are mainly used in large - scale metallurgical equipment, such as blast furnaces and rolling mills. The large - scale long - tooth products produced by the company have high strength, large load - carrying capacity, and long service life.
  • Technological Innovation: Dalian Huarui Heavy Industry Group Co., Ltd continuously promotes technological innovation in the production of long - tooth products. It has developed a series of advanced manufacturing technologies, such as large - scale gear forging technology and precision machining technology for large - diameter gears. These technologies have improved the quality and performance of the company's long - tooth products.
  • International Cooperation: The company actively carries out international cooperation. It has established cooperative relationships with many well - known international enterprises, introducing advanced foreign technologies and management experience. Through international cooperation, the company has improved its international competitiveness and expanded its international market share.


6. Nanjing High - Speed & Accurate Gear Group Co., Ltd

Nanjing High - Speed & Accurate Gear Group Co., Ltd is a leading enterprise in the field of high - speed and high - precision long - tooth gears in China.


  • High - Speed Applications: The company's long - tooth gears are widely used in high - speed equipment, such as high - speed trains and aircraft engines. For high - speed trains, the long - tooth gears need to ensure stable power transmission at high speeds, and at the same time, they need to have good shock - resistance and noise - reduction performance. The company has developed special materials and manufacturing processes to meet these requirements.
  • Quality Assurance: The company has a strict quality assurance system. It uses advanced testing equipment and quality control methods to ensure the quality of its long - tooth products. The company's products have passed many international and domestic quality certifications, which have laid a solid foundation for the company to enter the international market.
  • Industry Influence: Nanjing High - Speed & Accurate Gear Group Co., Ltd has a high influence in the domestic and international gear industry. It participates in the formulation of many industry standards, which reflects its leading position in technology and quality in the industry.


7. Hangzhou Advance Gearbox Group Co., Ltd

Hangzhou Advance Gearbox Group Co., Ltd is a professional gearbox and long - tooth gear manufacturer. It has a long - term development strategy and a strong brand image.


  • Marine Applications: The company's long - tooth gears are widely used in marine gearboxes. Marine gearboxes need to work in harsh environments, such as high humidity, high salt, and high - temperature. The long - tooth gears in marine gearboxes need to have excellent corrosion resistance and high strength. The company uses special anti - corrosion materials and surface treatment technologies to ensure the performance of its long - tooth gears in marine applications.
  • Product Upgrading: Hangzhou Advance Gearbox Group Co., Ltd continuously promotes product upgrading. It invests a large amount of funds in research and development every year to improve the performance and quality of its long - tooth products. The company has developed a new generation of marine gearboxes with high efficiency, low noise, and environmental protection, which have been well - received by the market.
  • Marketing Network: The company has established a wide - range marketing network at home and abroad. It has sales offices and agents in many regions, which can provide customers with convenient pre - sales and after - sales services.


8. Wuxi Huadong Heavy Machinery Co., Ltd

Wuxi Huadong Heavy Machinery Co., Ltd is mainly engaged in the production of heavy - machinery parts, including long - tooth gears. The company has advanced production equipment and a professional technical team.


  • Heavy - Duty Long - Tooth Gears: The long - tooth gears produced by the company are mainly used in heavy - duty cranes and other large - scale hoisting equipment. These gears need to withstand large loads and high impact forces. The company uses high - strength alloy steel and advanced heat treatment processes to ensure the strength and toughness of the gears.
  • Production Flexibility: Wuxi Huadong Heavy Machinery Co., Ltd has a high degree of production flexibility. It can customize long - tooth gears according to different customer requirements, including gear size, tooth profile, and material. The company can also adjust its production plan in a timely manner according to market demand, ensuring fast delivery.
  • Cost - Effectiveness: The company pays attention to cost - control. Through efficient production management and optimized supply chain management, the company can provide customers with high - quality long - tooth gears at a relatively low cost. This cost - effectiveness has made the company's products more competitive in the market.


9. Shandong Xinhua Pharmaceutical Co., Ltd (Gear - related Division)

Although Shandong Xinhua Pharmaceutical Co., Ltd is mainly known for the pharmaceutical industry, its gear - related division also has certain strength in the production of long - tooth gears.


  • Precision Long - Tooth Gears for Special Machines: The division produces precision long - tooth gears for special pharmaceutical machines. These gears need to meet strict hygiene and precision requirements. The company uses special stainless - steel materials and advanced machining processes to ensure the cleanliness and precision of the gears.
  • Cross - industry Technology Integration: The division integrates pharmaceutical - related technologies into the production of long - tooth gears. For example, it uses special surface treatment technologies to prevent the gears from being corroded by pharmaceutical chemicals. This cross - industry technology integration has given the company's long - tooth products unique advantages in the pharmaceutical machinery market.
  • Quality and Safety Standards: The division adheres to strict quality and safety standards in line with the pharmaceutical industry. It has a complete quality control system from raw material selection to finished product inspection, ensuring the safety and reliability of its long - tooth products.


10. Guangzhou Mechanical Engineering Research Institute Co., Ltd

Guangzhou Mechanical Engineering Research Institute Co., Ltd is a research - based enterprise with strong R & D and innovation capabilities in the field of long - tooth products.


  • New - Technology Long - Tooth Products: The institute is committed to the research and development of new - technology long - tooth products. It has developed a series of long - tooth gears with intelligent features, such as self - lubricating and self - monitoring functions. These new products can improve the reliability and maintenance convenience of equipment.
  • Industry - University - Research Cooperation: The institute actively cooperates with universities and research institutions. Through industry - university - research cooperation, it can introduce the latest scientific research results into the production of long - tooth products. This cooperation has promoted the technological progress of the institute and improved the performance of its long - tooth products.
  • Technical Services: In addition to product production, the institute also provides technical services. It can provide customers with technical consultation, product design, and process optimization services for long - tooth products, helping customers to improve their equipment performance.


Conclusion

The above 10 long - tooth factories in China represent the advanced level of the long - tooth product manufacturing industry in China. Each factory has its own unique advantages in terms of product quality, technological innovation, production scale, and market influence. Some factories focus on high - precision products for special applications, while others are good at large - scale mass production of long - tooth products for heavy - duty industries. With the continuous development of China's economy and the improvement of technological level, these factories will continue to play an important role in the global long - tooth product market. They will not only meet the growing domestic market demand but also expand their international market share through continuous innovation and improvement of product quality. At the same time, the competition among these factories will also promote the overall development and progress of the long - tooth product manufacturing industry in China.