Get a Quote
CN
ABOUT DONGYAABOUT DONGYA

WE HAVE 30+ YEARS
OF EXPERIENCE IN THIS FIELD

In 2002, Fujian Dongya Machinery Co., Ltd. was the first piston ring manufacturer in China to pass the ISO/TS16949 quality management system certification, in 2018, it passed the IATF16949 quality management system certification, in 2015, it passed the ISO14001 environmental management system certification.


In 2018, it passed the ISO45001 Occupational Health and Safety Management system certification.

ADVANTAGES

Participation in 80% of the new product development and improvement of mainstream OEM factories.

Fully equipped R&D laboratory
Development of specialized materials for piston rings
DLC, PVD, DTC, PCR, and Nitride coatings
PRODUCTS CENTERPRODUCTS CENTER 

            

            

                
            

        

    






    

        

            

                
                    CUSTOMIZATION 
                     AND PROCESS
                    CUSTOMIZATION
                    AND PROCESS
                
                                

                    

                        Cylinder diameter: 16.5mm-150mm
                    

                        Coatings: DLC, DTC, PVD, PCR, Nitriding
                    

                        Material: Steel and cast iron
                    
                

            

                        

                

                        01
                        
                        Engine parameters determination and design
                    

                        02
                        
                        Scheme design
                    
            

        

                 

        

                03
                
                Delivery plan development
            

                04
                
                Drawing design
            

                05
                
                Prototype production and bench testing
            

                06
                
                Mass production & delivery
            
        

    







    

        

            R&D CAPABILITIES
            

                

                

                

                    
                                        
    
                   
                      
  • 
                            
    
                                
    Participation in 80% of the new product development and improvement of mainstream OEM factories.
    R&D laboratories equipped with comprehensive testing devices. AVL-Excite PR, specialized CAE simulation design.
    Over 50 patents, contribution on national and industry technical standard revisions
    Established coatings including DLC, PVD, DTC, PCR, and Nitriding.
                                
    
                        
  • 
                            
    
                                
    Participation in 80% of the new product development and improvement of mainstream OEM factories.
    R&D laboratories equipped with comprehensive testing devices. AVL-Excite PR, specialized CAE simulation design.
    Over 50 patents, contribution on national and industry technical standard revisions
    Established coatings including DLC, PVD, DTC, PCR, and Nitriding.
                                
    
                        
    •  
                    
                    

                

            

        

    






    

        NEWS CENTERNEWS CENTER
    

    

    

            The performance differences and application scenarios of piston rings made of different materials (ductile iron VS steel) meet to the diverse needs of consumers.
            

                Sep. 12, 2025
                The performance differences and application scenarios of piston rings made of different materials (ductile iron VS steel) meet to the diverse needs of consumers.
                

                    
                

            

        

            The Importance of Correct Piston Ring Installation in 2-Stroke Engines
            

                Sep. 08, 2025
                The Importance of Correct Piston Ring Installation in 2-Stroke Engines
                

                    
                

            

        

            General-Purpose Engine Piston Rings Gain Momentum Across Multi-Industry Applications
            

                Sep. 08, 2025
                General-Purpose Engine Piston Rings Gain Momentum Across Multi-Industry Applications
                

                    
                

            

        

            Why GY6 Piston Rings Are in High Demand Across Southeast Asia
            

                Sep. 04, 2025
                Why GY6 Piston Rings Are in High Demand Across Southeast Asia
                

                    
                

            

        

            Forging Excellence: How Dongya Piston Rings Power the World's Best Engines
            

                Aug. 30, 2025
                Forging Excellence: How Dongya Piston Rings Power the World's Best Engines
                

                    
                

            

        

            Piston Rings and Carbon Neutrality: The Hidden Role of Tribology in Emission Reduction
            

                Aug. 22, 2025
                Piston Rings and Carbon Neutrality: The Hidden Role of Tribology in Emission Reduction
                

                    
                

            

        

            Types of Piston Rings
            

                Aug. 21, 2025
                Types of Piston Rings
                

                    
                

            

        

            The Complete Guide to Piston Rings: Function, Types, Materials, and Maintenance Tips
            

                Aug. 21, 2025
                The Complete Guide to Piston Rings: Function, Types, Materials, and Maintenance Tips
                

                    
                

            

        

            The Development Trends of Piston Rings: Adapting to a Changing World
            

                Aug. 13, 2025
                The Development Trends of Piston Rings: Adapting to a Changing World
                

                    Piston rings, the unsung heroes of internal combustion engines, are on the cusp of significant transformation. These small yet crucial components are set to evolve in several key ways to meet the demands of modern engines and a more environmentally conscious world.
                

            

        

            The Future of Chrome Plating: Are We Ready for Lighter, Greener Alternatives?
            

                Aug. 05, 2025
                The Future of Chrome Plating: Are We Ready for Lighter, Greener Alternatives?
                

                    
                

            

        
     
      
        
    










    

        
Powered by strong technical development and continuous innovation ability, DY PISTON RING ranks among the leading brands.

    

    

        
Subscribe for latest newsletter