Qingdao Ruichen Sealing Technology Co., Ltd.
Qingdao Ruichen Sealing Technology Co., Ltd.
Products

High Pressure Seals for Piston Holes

Ruichen Sealing is a capable manufacturer specializing in the R&D, mass production, and customized solution delivery of high-end industrial seals. With years of deep expertise in the high-pressure sealing sector, the company is a reliable domestic source for High Pressure Seals for Piston Holes. Equipped with comprehensive automated production lines and precision testing instruments, Ruichen maintains full in-house control over raw material selection, processing, and performance testing.

Production strictly adheres to ISO9001 quality standards; the company rejects inferior auxiliary materials and shoddy workmanship, ensuring consistent quality and stable performance across all products. With ample stock available, Ruichen supports bulk wholesale, non-standard size customization, and large-volume orders, enabling rapid response to sealing requirements for various industrial equipment and providing one-stop high-pressure sealing solutions to domestic and international clients.


The company’s core product lineup features a complete range of high-pressure seals for piston bores, including key models such as RC51, RC52, RC5354, RC5657, and RC5859, covering both standard and non-standard installation specifications. Designed specifically for applications involving piston bores—such as hydraulic cylinders and pneumatic cylinders—these seals are engineered to withstand demanding conditions, including high pressure, high-frequency reciprocating motion, and heavy-load impacts.

They utilize high-toughness polymer composite materials combined with a reinforced sealing structure, delivering exceptional pressure resistance, wear resistance, and aging resistance. The seals provide a tight, uniform seal that effectively prevents high-pressure media leakage and pressure loss. Additionally, they offer excellent resistance to temperature extremes, oil contamination, and corrosion; they resist deformation, wear, and aging during long-term operation, thereby significantly reducing equipment failure rates and extending the service life of hydraulic equipment.


As a recognized high-tech enterprise, Ruichen Sealing holds multiple patents for sealing structures and serves sectors such as construction machinery, mining equipment, metallurgical machinery, and general hydraulic equipment. Its entire range of high-pressure piston-bore seals undergoes rigorous testing—including high-pressure endurance, reciprocating wear resistance, and durability/aging tests—ensuring quality that meets the industry's highest standards.

Backed by consistent product quality and a comprehensive after-sales service system, the brand’s products serve as long-term components for major heavy industry enterprises and engineering equipment manufacturers; they are best-sellers domestically and are exported to numerous countries and regions worldwide. The manufacturer offers custom-engineered sealing solutions—tailored to specific operating conditions, installation dimensions, and pressure parameters—and ensures rapid response to requirements for model selection and bulk procurement, delivering safe, stable, and durable bore sealing solutions for a wide range of high-pressure hydraulic equipment.


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Reinforced Step Combined Seal for Rod

Reinforced Step Combined Seal for Rod

Designed for demanding sealing applications involving water pressure and ultra-high pressure, Ruichen Sealing has launched the RC58/RC59 Reinforced Step Combined Seal for Rod. This product features a combination of a reinforced modified PTFE sealing ring and a GB1235-standard O-ring, specifically engineered for unidirectional sealing in reciprocating hydraulic equipment. An optimized, thickened sealing ring design addresses the challenges of sealing low-viscosity media (such as water), while the reinforced structural design significantly enhances ultra-high-pressure resistance.
Bore Foot Type Combined Seal

Bore Foot Type Combined Seal

For high-pressure piston sealing solutions, choose the Ruichen RC53/RC54 Bore Foot Type Combined Seal! This PTFE combined seal is designed for use with GB1235 standard O-rings; its wedge-shaped foot profile balances contamination resistance, low friction, and exceptional pressure resistance, making it ideal for unidirectional reciprocating hydraulic and pneumatic sealing applications.
Right Angle Combined Seal for Piston

Right Angle Combined Seal for Piston

Ruichen Sealing supplies the RC51 and RC52 Right Angle Combined Seal for Piston. These seals feature a composite PTFE right-angle sealing ring paired with a GB1235-standard O-ring, designed to meet requirements for single-acting piston sealing in hydraulic and pneumatic reciprocating applications. Options for specification selection and bulk purchasing are available.
OK Type Combination Seal

OK Type Combination Seal

For high-efficiency, easy-to-install, bidirectional hydraulic seals, the top choice is Ruichen Sealing’s OK Type Combination Seal. This composite seal allows for rapid installation without the need for specialized tools. It features an automatic wear-compensation structure that maintains a stable seal, ensuring reliability even under harsh, high-pressure conditions. With outstanding extrusion resistance and compatibility with large extrusion gaps, it is ideal for sealing applications involving low-viscosity media—such as water—and is available in a full range of specifications from stock.
As a reliable High Pressure Seals for Piston Holes manufacturer and supplier in China, we have our factory. If you want to buy quality and durable products, please contact us.
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