Qingdao Ruichen Sealing is a specialized manufacturer dedicated to the R&D, production, and technical service of hydraulic sealing components, serving as a primary source and factory for high-quality high-pressure piston rod seals. We support bulk wholesale and customized production, maintain ample stock, offer free samples, and welcome orders and partnership inquiries from global customers.
Our high-pressure piston rod seals cover a comprehensive range of models, including RC01/02, RC03/04, RC06/07, RC08/09, RC1060, RC13, and RC14, suitable for various hydraulic reciprocating sealing applications.
Utilizing a composite structure of proprietary modified engineering plastics and high-performance elastomers, these seals offer key advantages such as low friction, smooth operation, stick-slip-free performance, and an exceptionally long service life.
Capable of withstanding dynamic pressures up to 720 MPa, they are compatible with low-viscosity, corrosive media (such as water) and excel in demanding high-pressure and ultra-high-pressure operating conditions.
Our products are widely used in sectors ranging from military to civil equipment, including plunger pumps, hydraulic nuts, isostatic presses, homogenizers, construction machinery, forging equipment, petrochemicals, and aerospace. Featuring easy installation and a compact design, they effectively reduce equipment leakage failures and maintenance costs.
Ruichen Sealing possesses robust technical capabilities and comprehensive certifications, including ISO 9001 quality system accreditation. We are recognized as a National High-Tech Enterprise, a provincial-level "Specialized, Refined, Differential, and Innovative" (SRDI) SME, and a technology-based SME. We hold over forty national patents and participate in the drafting of industry standards.
Thanks to superior product quality, our high-pressure piston rod seals are long-term suppliers to industry leaders and state-owned enterprises such as CITIC Heavy Industries and Qingdao DoubleStar; our products are distributed nationwide and exported globally.
We operate a professional sealing performance testing laboratory and utilize over ten automated CNC machining units and more than 800 sets of production molds. This infrastructure enables independent R&D and multi-dimensional testing (pressure, temperature, and durability), ensuring strict quality control. Leveraging technical expertise derived from university-industry-research collaborations, we have accumulated extensive practical experience in extreme sealing applications involving high, ultra-high, and hydraulic pressures. We maintain full control over the entire value chain, from raw material modification and precision machining to finished product testing, enabling us to provide highly compatible and reliable high-pressure piston rod sealing solutions for a wide range of industrial equipment.
