in Plastic granulation
Nanjing Kelongwell Chemical Machinery Co., Ltd., established in 2018, is a professional manufacturer of plastic polymer blending and modification equipment that integrates research and development, design, production, sales, and service. It is deeply rooted in the field of plastic extrusion equipment and is committed to providing high-performance and customized plastic extrusion complete solutions for global customers, creating a national extrusion equipment brand that can replace imports.


About our company
The company is located in Nanjing, Jiangsu, with a standardized production plant area of over 11,000 square meters and a registered capital of 11 million yuan. It has modern CNC machining centers, complete testing laboratories, and standardized production lines. The annual production capacity can reach 500 sets of complete extrusion production lines, with stable spot supply and customized fast delivery capabilities. Since its establishment, we have always been driven by technological innovation and have continuously invested a large amount of resources in the research and development of mixing technology, screw configuration technology, intelligent control systems, and supporting auxiliary equipment. In core application areas such as modified plastics, biodegradable plastics, and blended plastics, we have formed a mature and stable process technology system and equipment solutions.
Technology and Services
Involved Fields
Our core products include a full range of equipment such as co rotating parallel twin-screw extruders, triple screw extruders, twin rotor continuous mixers, multi-stage modified extrusion granulation production lines, etc., which can widely adapt to the blending modification and granulation molding needs of various materials such as PLA, PBAT, PP, PE, PC, etc. The equipment, with its excellent temperature control accuracy, efficient shear dispersion effect, strong conveying efficiency, and excellent self-cleaning ability, can fully meet the production needs of customers in multiple scenarios such as new material research and development, large-scale production, and recycling. The uniformity, mechanical properties, and thermal stability of finished product particles all meet high industry standards.
Technical Strength
At the technical research and development level, the company has established a research and design team led by doctors and masters, with core members having more than twenty years of industry experience. Based on the material characteristics, production capacity requirements, and working environment of customers, the company can provide customized services throughout the entire process from whole plant planning, scheme customization, equipment selection, installation and commissioning to personnel training. We have established a rigorous full process quality control system, selecting internationally renowned brands for our core components. From raw material entry audits, precision machining of parts, to machine testing of the entire machine, every link is subject to strict quality control standards to ensure the stability and reliability of every factory equipment.
Service Level
Adhering to the business philosophy of "integrity-based, craftsmanship based, and service-oriented", we have provided customized extrusion production line solutions for more than 1000 customers worldwide. Our products not only cover provinces and cities across the country, but also export to more than 50 countries and regions around the world, such as Japan, Indonesia, Singapore, Australia, and Dubai. At the same time, we have set up localized service offices in industrial clusters such as Shantou and Dongguan, and established a 7 × 24-hour rapid response service system to provide customers with full lifecycle technical support and operation and maintenance guarantee.
Development History
2025
Recognized as a high-tech enterprise, our brand influence ranks among the top tier in the domestic extrusion equipment industry. Our core product performance continues to be optimized, achieving new breakthroughs in energy saving and mass production stability, fully meeting the needs of various scenarios such as new material research and development, large-scale production, recycling, and regeneration.

2024
Core technologies have undergone continuous iteration, resulting in comprehensive upgrades in equipment temperature control accuracy, conveying efficiency, and self-cleaning capabilities. The company has obtained multiple industry qualifications and intellectual property rights. Overseas markets have been rapidly expanded, with products exported to over 50 countries and regions worldwide.

2023
Focusing on the biodegradable plastic sector, we have completed the technological iteration of dedicated extrusion production lines for biodegradable materials such as PLA and PBAT, ensuring that equipment performance meets high industry standards.

2022
Allocate additional special research and development funds, commence the research and development of internal mixing technology and dedicated equipment for biodegradable materials, and tackle the core challenges of temperature control and dispersion in the processing of degradable materials; refine the full-process quality control standards, achieve standardized production of core components, and steadily enhance production capacity and delivery capabilities.

2021
The core product has successfully adapted to the processing needs of modified plastics and general-purpose plastics. We have established a complete production, quality control, and pre-sales and after-sales service system, achieving an initial layout in the domestic market. We have delivered the first batch of complete production lines and completed the market entry during the startup phase.


why choose us
We provide a one-stop service for the entire process from whole plant planning, customized solutions, equipment selection, installation and commissioning to personnel training.
Whether it's customized models for new material research and development, complete production lines for large-scale production, or optimization solutions for upgrading and renovating old lines, we can rely on our deep accumulation of process technology to tailor more adaptable, higher production efficiency, and lower operating costs exclusive solutions for customers, truly solving the core pain points of the entire production process for customers.
