IDU / ODU Piston Seal | Double-Acting Symmetrical Hydraulic Seal

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IDU / ODU Piston Seal | Double-Acting Symmetrical Hydraulic Seal

Symmetrical piston seals for double-acting cylinders. IDU and ODU profiles suitable for dynamic sealing in both directions. Made from high-performance TPU/NBR. Custom sizes available.

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I've been working with Hengoseal for over three years, and it's been a great experience throughout. Their product quality is consistently reliable, the pricing is reasonable, and they always deliver on time. Even when I have smaller orders, they’re very supportive — which I truly appreciate.

Product Details

The IDU and ODU Piston Seals are double-acting, symmetrical sealing elements designed for dynamic applications in hydraulic cylinders. These seals are ideal for pistons that require bidirectional sealing under high pressure and frequent stroke reversals.

Their lip geometry ensures equal sealing force on both sides of the piston, reducing wear and ensuring consistent performance. IDU/ODU profiles are especially suitable for compact groove designs and are compatible with most international cylinder standards.

🔧 Product Features

  • Symmetrical design for bidirectional sealing

  • Excellent wear and extrusion resistance

  • Stable under pressure up to 25 MPa

  • Long service life in medium to high-speed systems

  • Material options: TPU / NBR

  • Compatible with metric and inch-sized grooves

  • OEM branding and packaging available

📐 Technical Specifications

Parameter Value
Application Area Piston sealing
Working Pressure ≤ 25 MPa
Speed ≤ 1.0 m/s
Temperature Range -35°C to +100°C
Material TPU / NBR
Groove Type Closed / ISO groove
Size Range 20 mm – 300 mm (ID)

🛠 Typical Applications

  • Mobile hydraulics (cranes, forklifts)

  • Agricultural machinery

  • Industrial hydraulic cylinders

  • Marine deck cylinders

  • Injection molding piston systems

If you need a reliable double-acting seal for dynamic piston operation, the IDU / ODU seal set is a proven choice. We can match by drawing, sample, or OEM reference.

👉 Explore related content: Types of hydraulic cylinder seals

📧 Email: [email protected]
📱 WhatsApp: +86 17622979498

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