IUIY Cushion Seal – One-Piece Double-Acting Hydraulic Buffer Seal with Y-Ring and Integrated Backup Rings
One-piece IUIY cushion seal for high-pressure hydraulic cylinders. Double-acting buffer seal with Y-ring, integrated backup rings, and bleed-back function. PU, –40°C~110°C, ≤45 MPa.
IUIY Cushion Seal – A premium hydraulic buffer seal engineered for end-of-stroke cushioning in high-pressure, high-cycle double-acting cylinders. This one-piece cushioning seal integrates a Y-ring lip geometry with built-in anti-extrusion backup rings and a pressure-bleed/return feature that enables controlled fluid metering for smooth deceleration while maintaining positive sealing under cushioning pressures. The asymmetric sealing profile delivers reliable bidirectional performance during both cushioning and normal operation, while the impact-resistant polyurethane compound withstands repeated shock loads, pressure spikes, and extreme temperatures. The monobloc cartridge design simplifies installation, eliminates assembly errors, and reduces groove machining costs. This heavy-duty buffer seal is ideal for mobile hydraulics, construction equipment, mining machinery, and industrial cylinders requiring reliable end-stroke deceleration with compact packaging. Material: high-modulus impact-resistant polyurethane with integrated support elements. Temp: –40°C to +110°C. Pressure: up to 45 MPa. Speed: up to 3 m/s.
One-piece double-acting cushion seal with Y-ring geometry for hydraulic cylinder buffering
Integrated anti-extrusion backup rings prevent gap extrusion under pressure spikes
Pressure-bleed/return geometry enables controlled fluid metering for smooth deceleration
Impact-resistant polyurethane compound withstands shock loads and high-cycle operations
Asymmetric sealing profile delivers reliable bidirectional performance
Monobloc cartridge design simplifies installation and reduces assembly errors
High-pressure capability up to 45 MPa; wide temperature range –40°C to +110°C
Ideal for mobile hydraulics, construction, mining, and heavy industrial cylinders
IUIY Cushion Seal – One-piece double-acting hydraulic buffer seal with Y-ring geometry, integrated backup rings, and bleed-back function. Delivers controlled deceleration, impact resistance, and anti-extrusion protection in high-pressure cylinder applications. Impact-resistant PU, –40°C~110°C, ≤45 MPa, ≤3 m/s.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
