Choosing the wrong seal can lead to air leaks and costly downtime.
A piston seal holds air pressure inside the cylinder; a rod seal prevents leaks along the rod. Both are critical but serve different purposes.
Here's how to select the right seal for your pneumatic application.
What’s the Main Difference Between a Piston Seal and a Rod Seal?
They operate in different areas of the cylinder.
Segel piston are installed in the bore to manage chamber pressure.
Segel batang are placed at the cylinder head to stop air leakage along the moving rod.
They work together to maintain system efficiency. See the full breakdown in our pneumatic cylinder seal guide.
What Are the Key Functional Differences?
| Fitur | Segel Piston | Segel Batang |
|---|---|---|
| Lokasi | Bagian dalam lubang silinder | Cylinder head |
| Fungsi | Seals pressure between chambers | Prevents external air leakage |
| Movement | Static or dynamic | Always dynamic |
| Failure symptoms | Blow-by, reduced stroke | Visible air leak, reduced pressure |
Consider adding segel penghapus debu for added protection in dirty environments.
Which Materials Are Best for Each Seal?
Bahan Terbaik untuk Segel Piston
| Bahan | Benefits | Kasus Penggunaan |
|---|---|---|
| Bahasa Inggris | Flexible and low cost | General air cylinders |
| TPU | Tahan aus | Automation systems |
| PTFE | Gesekan rendah | Silinder kecepatan tinggi |
| FKM | Heat and chemical resistance | Industrial cylinders |
More info: Piston Seal Types & Materials
Bahan Terbaik untuk Segel Batang
| Bahan | Benefits | Kasus Penggunaan |
|---|---|---|
| Bahasa Inggris | Budget-friendly | Low-speed cylinders |
| TPU | Long service life | Heavy-duty cycles |
| FKM | Lingkungan ekstrim | Chemical or high-temp use |
Explore options: Pembuat O-Ring Kustom
When Should You Use a Piston Seal vs. a Rod Seal?
Use a piston seal for internal chamber sealing.
Use a rod seal to seal around the moving piston rod.
In most cylinders, you’ll use both. For comparison: Piston vs Rod Seal
How to Prevent Common Seal Failures?
- Menggunakan PTFE atau TPU for high-speed or friction-prone systems
- Replace seals every 6–12 months
- Menggunakan segel penyangga to absorb pressure spikes
Di mana Membeli Segel Piston & Batang Berkualitas Tinggi?
Kami menyediakan:
- Rod seals, piston seals, buffer & wiper seals
- Bahan: NBR, TPU, FKM, PTFE
- OEM specs and custom orders
📩 Surel: [email protected]
WhatsApp: +86 17622979498
Kesimpulan
Rod seals stop leaks along the rod; piston seals maintain pressure in the chamber. Use both for reliable pneumatic performance.
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