SPGA Piston Seal – O-Ring Energized Bidirectional Seal with Integrated Guide Ring for Heavy-Duty Hydraulic Cylinders.
SPGA O-ring energized bidirectional piston seal with integrated guide ring for heavy-duty hydraulic cylinders. Seals, supports, and guides. PU + NBR + polymer, –35°C~115°C, ≤45 MPa.
SPGA Piston Seal – A premium O-ring energized bidirectional piston seal engineered for heavy-duty double-acting cylinders requiring sealing, guidance, and anti-extrusion protection in a single integrated design. This hydraulic piston seal features an O-ring actuator that provides uniform radial loading to the sealing element, ensuring consistent performance across varying pressures and temperatures. The integrated wear-resistant guide ring provides radial support, absorbs side loads, and reduces metal-to-metal contact for extended cylinder life. The O-ring compensates for wear, thermal expansion, and pressure cycling, while the asymmetric sealing profile delivers reliable bidirectional sealing with minimal leakage. The integrated design simplifies assembly and reduces component count, making this heavy-duty piston seal ideal for construction equipment, mining machinery, and high-cycle industrial applications. Material: high-grade polyurethane seal with NBR/FKM O-ring and reinforced polymer guide ring. Temp: –35°C to +115°C. Pressure: up to 45 MPa. Speed: up to 3.5 m/s.
O-ring energized bidirectional piston seal with integrated guide ring for heavy-duty applications
Integrated guide ring provides radial support, absorbs side loads, and reduces metal-to-metal contact
O-ring actuator provides uniform sealing force and compensates for wear and thermal expansion
Asymmetric sealing profile delivers reliable bidirectional performance with minimal leakage
All-in-one design simplifies assembly and reduces component count
High-pressure capability up to 45 MPa; speed up to 3.5 m/s
Ideal for construction equipment, mining machinery, high-cycle industrial applications, and heavy-duty hydraulic cylinders
SPGA Piston Seal – O-ring energized bidirectional piston seal with integrated guide ring for heavy-duty hydraulic cylinders. Delivers sealing, support, and guidance in one integrated design. PU seal + NBR/FKM O-ring + polymer guide, –35°C~115°C, ≤45 MPa, ≤3.5 m/s.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
