Introduction
Nanjing Ruiya Extrusion System Limited (南京瑞亚挤出机械制造有限公司), also known in English as Nanjing Ruiya Extrusion Systems Limited, is a Chinese manufacturer of twin-screw extrusion systems and related compounding equipment, based in Nanjing, Jiangsu Province. The company is part of the CPM Group and is described in company materials as one of China’s established producers of twin-screw extruders, with products used across plastics processing and allied compounding applications.
Founded in 1993 and acquired by CPM in 2007, Nanjing Ruiya has developed into a supplier of extrusion machinery, mixing systems, spare parts, and technical support services. Company descriptions also state that it operates as one of the larger extrusion machinery production and installation bases in Asia, reflecting its long-standing role in the regional plastics equipment sector.
The company’s core business centers on co-rotating twin-screw extruders and associated system integration for plastic processing, with emphasis on process control, mixing performance, devolatilization, and throughput optimization. Its product families are presented as serving different operating requirements, including TSE, RXT, and CX series machines, which are positioned by the company around quality, high speed, high torque, and high output configurations.
History and development
Nanjing Ruiya traces its origins to 1993, when it was established as a specialist extrusion machinery manufacturer in Nanjing.
A major milestone came in 2007, when the company was acquired by the U.S.-based CPM Group, bringing it into a broader international machinery portfolio focused on extrusion and process equipment.
In subsequent years, the company expanded its technical positioning around complete extrusion systems and application support. Company materials describe continuous innovation in equipment technology and engineering, as well as after-sales technical support, as key elements of its market development.
Business operations and corporate profile
The company is headquartered in Nanjing, Jiangsu, with its factory and contact address listed in the Jiangning Development Zone.
Its public-facing materials and exhibitor listings identify it as a supplier of:
- Twin-screw extruders
- Mixing and compounding systems
- Auxiliary equipment
- Complete production lines
- Technical and after-sales support
Exhibitor data from ChinaPlas also classifies the company within the plastics and rubber supply chain and highlights recognition as a “Specialized, Refined, Distinctive, and Innovative” enterprise in China’s industrial policy framework.
Products and technologies
Nanjing Ruiya’s product portfolio is centered on co-rotating twin-screw extrusion technology, which is widely used in compounding because it combines conveying, mixing, melting, and reactive processing in a continuous system.
The company identifies several machine families:
- TSE series: described as a traditional product line and positioned as a long-established benchmark in its category.
- RXT series: described as a high-speed, high-torque, high-output series.
- CX series: described as a high-torque series for demanding processing conditions.
Its application materials indicate use in processes such as:
- TPU and TPV compounding
- MAH grafting
- Peroxide crosslinking
- Multi-stage extrusion setups with vacuum devolatilization to remove solvents or reaction by-products
This suggests that the company’s equipment is designed not only for ordinary blending but also for more technical reactive extrusion tasks where residence time, mixing intensity, and volatile removal are critical.
Applications and end markets
The company’s systems are used in multiple plastics-processing and adjacent sectors. Based on its application and product descriptions, its end markets include:
- Plastics compounding
- Color masterbatch and pigment processing
- Powder coatings
- Engineering and specialty elastomers
- Reactive polymer modification
- Food-related extrusion applications, according to CPM group materials
The company’s trade and shipment records indicate international customer activity, with import-tracking sources showing shipments linked to buyers in India, Vietnam, the United States, and other markets.
Global presence and market position
Nanjing Ruiya is positioned as a Chinese manufacturer with international ownership and export activity. Company and third-party sources describe it as part of CPM’s global extrusion network, alongside sister operations in the United States and Germany.
Its market position appears to be strongest in twin-screw extrusion systems rather than in broader plastics machinery. Company materials emphasize a complete product range, technical support capabilities, and a long operating history as indicators of competitive strength in compounding machinery.
Trade-data sources show export activity and recurring shipments, supporting the view that the company serves customers beyond mainland China.
Sustainability and environmental initiatives
Publicly available company materials provided here do not present a detailed sustainability report or quantified emissions targets. The most relevant environmental aspect visible in the product information is the use of vacuum devolatilization and multi-stage extrusion arrangements, which can help remove solvents or reaction by-products during processing.
From an industry perspective, twin-screw extrusion systems can support material efficiency through compounding, recycling-compatible formulations, and integration of fillers or additives, but specific sustainability claims for Nanjing Ruiya should be treated cautiously unless supported by formal disclosures.
Leadership and ownership
The company is reported to be a wholly owned subsidiary of the CPM Group.
Third-party business profiles identify the company as privately held and acquired in 2007, while some listings also indicate an employee base of roughly 250. These figures are not confirmed in company disclosures and should therefore be regarded as indicative rather than definitive.
Innovations and future outlook
Nanjing Ruiya’s technical direction appears to be centered on higher-performance extrusion platforms, system integration, and process support. The company’s emphasis on high-torque, high-speed, and high-output configurations suggests alignment with current plastics-industry demand for greater throughput, improved dispersion, and broader process flexibility.
Its future prospects are likely tied to several sector trends:
- Demand for specialty compounding
- Expansion of engineering plastics and elastomer modification
- Greater interest in process efficiency
- Continued integration of automation and devolatilization in extrusion systems
Because the company operates within CPM’s international machinery network, its long-term positioning will likely depend on both domestic Chinese demand and export competitiveness in compounding and extrusion equipment.
Summary
Nanjing Ruiya is a long-established Chinese twin-screw extruder manufacturer with roots in 1993 and corporate ownership under CPM since 2007. Its main strengths lie in extrusion system design, compounding applications, and technical support, with products serving plastics, coatings, elastomers, and related processing sectors.
References
- •
CPS+ eMarketplace. (n.d.). NANJING RUIYA EXTRUSION SYSTEM LIMITEDNANJING RUIYA EXTRUSION SYSTEM LIMITED. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1005177Link