Metal oil scraper rings are essential components in reciprocating compressor systems, engineered to control lubrication and prevent oil carryover. Installed near the crankcase side, they scrape excess oil from the piston rod during reciprocating motion, ensuring that lubricant does not enter the compression chamber or leak outside the system.
Their robust metal construction makes them ideal for high-pressure and heavy-duty environments where long-term stability is required. Compared with non-metallic alternatives, metal oil scraper rings provide better structural strength and consistent performance under load.
Features
- High-strength metal construction for demanding applications
- Precision-machined scraping edge for efficient oil removal
- Stainless steel garter spring ensures stable radial force
- Excellent wear resistance and dimensional stability
- Designed with grooves and drain holes for effective oil discharge
Material Options
- Brass Oil Scraper Rings – corrosion-resistant and easy to machine
- Bronze Oil Scraper Rings – superior wear resistance and load capacity
- Cast Iron Oil Scraper Rings – durable and cost-effective
All materials are carefully selected to ensure optimal balance between hardness, flexibility, and durability under continuous operation.
Working Principle
Metal oil scraper rings operate through controlled friction and radial pressure. The garter spring applies continuous tension, ensuring close contact between the ring and piston rod. As the rod reciprocates, the scraping edge removes excess oil, which is discharged through grooves or drain holes, maintaining a clean and efficient system.
Applications
- Reciprocating air compressors
- CNG compressors
- Oil & gas industry
- Petrochemical and chemical processing plants
- High-pressure gas compression systems
QZSEALS has over 15 years of experience in manufacturing sealing components and replacement compressor parts in China. We specialize in customized solutions for reciprocating compressors, including oil scraper rings, piston rings, rider rings, rod packing, valves, and other critical compressor spares.
Our engineering team is involved from concept design to final production, ensuring every component meets OEM specifications and performs reliably under demanding conditions. With strong expertise in material selection and precision machining, we deliver durable, high-performance metal oil scraper rings tailored to your specific applications.
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