Plunger rings play a critical role in the efficient operation of various mechanical systems, particularly in hydraulic and pneumatic applications.

Plunger Rings Design

Manufacturers produce them using advanced materials and precision techniques to meet the demanding requirements of modern industries.
Material Selection
Manufacturers select high-performance materials like ASL42 stainless steel or tool steel for them to ensure strength, wear resistance, and durability in demanding environments. Some also use copper for specific applications.
Dimensional Accuracy
Precision is paramount in the design of rings. Engineers use advanced CAD software to create detailed models that meet exact specifications. They ensure tight tolerances to achieve a perfect fit within the assembly, minimizing leakage and maximizing efficiency.
Surface Treatment
Manufacturers heat-treat some plunger rings to achieve a hardness of 45-52 Rc, making them tough and wear-resistant. They also offer customizable surface treatments such as gas nitriding, HVOF thermal spray coating, and PVD TIN & CRn coatings.
Plunger Rings Manufacturing Process
Forging and Rolling
Manufacturers use proprietary forging processes or rolled bars to produce high-strength, high-integrity plunger rings.
Precision Machining
They precision grind the rings to very fine tolerances, ensuring accuracy and consistency.
Customization
Manufacturers configure plunger ring parameters according to specific requirements, such as size, material, and joint configuration.
Quality Control
They implement rigorous quality control measures throughout the manufacturing process to meet industry standards like IATF16949.
Advantages
Extended Lifespan
High-quality materials and advanced manufacturing processes extend the lifespan of rings, reducing the need for frequent replacements.
Improved Performance
The design and material of them enhance their performance in various applications, such as providing consistent compression load on sleeves and ensuring smooth, consistent material flow.
Customizability
Manufacturers can tailor rings to meet specific needs, making them suitable for different machinery and applications.
Haichen Plunger Rings supplier
Haichen is a well-known manufacturer of cold chamber, hot chamber die casting machines and components, including die casting plunger rings. Our plunger rings can meet the high demands of the die casting industry, ensuring precision, durability, and efficiency in the injection process.

These rings are designed to provide effective sealing and smooth operation in high-pressure environments. Below are some of the key features of Haichen plunger rings:
High-Quality Materials
Haichen plunger rings are typically made from durable materials such as PTFE (Polytetrafluoroethylene), PEEK (Polyether Ether Ketone), or other high-performance polymers. These materials offer excellent resistance to wear, corrosion, and chemicals, ensuring long-lasting performance.
Excellent Sealing Performance
The rings can provide a tight seal, preventing leakage of fluids in hydraulic systems. This ensures efficient operation and minimizes downtime due to maintenance.
High Pressure and Temperature Resistance
These rings are designed to withstand high-pressure conditions and extreme temperatures, making them suitable for demanding industrial environments.
High Pressure and Temperature Resistance
These rings can withstand high-pressure conditions and extreme temperatures, making them suitable for demanding industrial environments.
Haichen plunger rings are known for their durability, reliability, and high performance in demanding industrial applications. Their ability to withstand high pressure, temperature, and chemical exposure, combined with their low friction and wear resistance, makes them a preferred choice for sealing solutions in hydraulic systems and pumps.