Polished Graphite Rings

SIKAIDA Polished Graphite Rings utilize advanced hot-pressing and precision polishing technology to ensure uniform density and excellent surface quality. As a professional graphite product supplier, we strictly control quality throughout the entire process, from material selection to finished product testing, ensuring that every product meets high industry standards.

Polished Graphite Rings are made from high-purity graphite with a carbon content of ≥99.5%. Specifications, dimensions, and shapes can be customized to meet precise customer needs. The surface is free of scratches, pits, and impurities, offering excellent sealing performance, smooth fit, and outstanding chemical stability and corrosion resistance, allowing for long-term stable operation in harsh environments such as high temperature and high pressure.

Product Specifications

Core Features and Advantages

1. Excellent Surface Finish: Precision polishing process controls surface roughness to Ra 0.4-0.8μm, eliminating scratches and impurities, reducing the coefficient of friction, and extending service life.

2. Precision Fit: ±0.05mm dimensional accuracy ensures perfect sealing of mating components, effectively preventing leakage and guaranteeing stable system operation.

3. Excellent Sealing Performance: Graphite has self-lubricating properties, achieving reliable sealing without the need for sealants, suitable for demanding applications.

4. High Material Purity: Carbon content ≥99.5%, chemically stable, conductive, and high-temperature resistant, suitable for harsh working conditions.

5. High Mechanical Strength: Dense hot-pressed structure, not easily broken, and shape stable under high pressure and high temperature.

6. Wide Temperature Range Adaptability: Operates normally from -200°C to +450°C, with strong resistance to thermal shock.

7. Good Electrical Conductivity: Conductivity ≥100 S/m, suitable for electrical applications such as electric heating and conductive contacts.

8. Strong Chemical Stability: Resistant to acids, alkalis, and organic solvents, with no performance degradation over long-term use.

Technical Capabilities

1. Material Processing Capabilities: We possess strong material processing capabilities, able to select suitable graphite materials according to application requirements. Our factory is equipped with advanced equipment and a professional team to ensure reasonable and reliable material selection.

2. Surface Treatment and Tolerance Control: We offer various processes including precision mechanical polishing and chemical polishing, achieving a surface accuracy of Ra 0.4μm; we strictly control tolerances, with a maximum dimensional accuracy of ±0.02mm and concentricity ≤0.03mm.

3. Quality Assurance: We strictly adhere to the ISO9001:2015 quality management system and have passed international certifications such as SGS, RoHS, and REACH. We accept reverse engineering of various technical documents and physical samples, including STP, DXF, and PDF.

Application Areas

SIKAIDA Polished Graphite Rings, with their superior performance, are widely used in: power (high-voltage switches, etc.), electronics (semiconductor equipment, etc.), chemical industry (pump and valve seals, etc.), metallurgy (high-temperature equipment components), vacuum technology, new energy, glass manufacturing, and medical equipment, providing reliable support for stable equipment operation.

Frequently Asked Questions

Q1: What are the main materials of Polished Graphite Rings?

A1: We use high-purity graphite materials with a carbon content ≥99.5%, ensuring excellent conductivity, high-temperature resistance, and chemical stability.

Q2: Can you provide customized polished graphite rings?

A2: Yes, we fully support customized production. Based on customer-provided drawings, samples, or specific requirements, we can produce polished graphite rings of different specifications, precision, and performance requirements.

Q3: What level of surface finish can Polished Graphite Rings achieve?

A3: Our precision polishing process can control the surface roughness between Ra 0.4-0.8μm, resulting in a smooth, flawless surface that ensures a perfect seal with mating parts.

Q4: What is the operating temperature range of your polished graphite rings?

A4: Our products can operate normally within a temperature range of -200°C to +450°C, exhibiting excellent thermal shock resistance and suitable for various extreme temperature applications.

Q5: How do you ensure product consistency and quality stability?

A5: We strictly adhere to the ISO9001:2015 quality management system. From raw material procurement to the production process and final testing, every step has strict quality control standards to ensure consistency between product batches.

Q6: What is the delivery cycle?

A6: The sample delivery cycle is 4-7 weeks. The mass production delivery cycle depends on the order quantity, generally 8-12 weeks. The specific delivery cycle can be agreed upon upon order confirmation.

Q7: Do you provide technical support and services?

A7: Yes, we provide comprehensive technical support services, including product selection advice, application technical support, after-sales service, etc., to ensure that customers can use our products correctly and efficiently.