공압 시스템에서 공기 누출, 효율성 저하 또는 손상된 구성품에 직면해 있습니까? 당신만 그런 것이 아닙니다. 올바른 선택 공압 실린더 씰 can make or break your operation’s reliability and lifespan.
Pneumatic cylinder seals prevent air leakage and contamination by sealing gaps between pistons, rods, and end caps. Their proper function ensures efficient pressure retention, smooth motion, and longer equipment lifespan.
Understanding each type of pneumatic seal and how it functions can save your system from premature wear. Let's dive into what matters most when choosing the right seal.
What types of pneumatic seals are used in cylinders?
Confused by terms like piston seals, rod seals, or wipers? You're not alone. Many struggle to pick the right type for their application.
Pneumatic cylinders use piston seals, rod seals, dust wiper seals, and buffer seals. Each plays a specific role in sealing air, reducing friction, and protecting system components.
What does each pneumatic seal type do?
| 씰 유형 | 기능 | 일반 재료 | 제품 링크 |
|---|---|---|---|
| 피스톤 씰 | 피스톤 헤드의 내부 압력을 밀봉합니다. | NBR / FKM / TPU | 공압 실린더 씰 |
| 로드 씰 | 움직이는 막대 주위에 공기를 밀봉합니다. | NBR / FKM / TPU | 로드 씰 |
| 더스트 와이퍼 씰 | 먼지 침투 방지 | TPU/NBR | 더스트 와이퍼 씰 |
| Cushion Seals | 운동에너지를 흡수하다 | TPU / 고무 블렌드 | 버퍼 씰 및 쿠션 링 |
How do pneumatic piston seals maintain motion and pressure?
Ever wonder what keeps air inside a moving pneumatic cylinder? It’s all about the piston seal.
Pneumatic piston seals trap compressed air between the piston and cylinder wall. This force moves the load. A leak here ruins actuation.
What happens inside a pneumatic cylinder?
In a bottling plant I visited, inefficient seals caused pressure loss in air-operated presses. After installing high-grade 공압 피스톤 씰, efficiency improved by 23% and downtime dropped.
Step-by-Step Process:
- Compressed air enters the cylinder.
- Piston seal traps air ahead of the piston.
- Air pressure pushes piston forward.
- Seal blocks reverse airflow.
- Air exhausts post-stroke.
How do I select the right pneumatic cylinder seal?
Choosing a seal isn’t just about diameter—it’s about durability.
To pick correctly, match operating pressure, stroke type (rotary or linear), environment (dust, heat), and air composition. Then choose seal materials: NBR (economical), FKM (high heat), TPU (abrasion-resistant).
What should I consider when choosing a seal?
| Application Factor | Recommended Seal Type |
|---|---|
| High temp zones | FKM or PTFE-based seals |
| 긴 수명 | TPU with low-friction profiles |
| Dusty setups | 더스트 와이퍼 씰 필수적인 |
| Heavy loads | Cushion Seals to absorb energy |
| Precise motion | Tight-tolerance O-rings, often custom fit |
What’s the difference between pneumatic and hydraulic seals?
Hydraulic and pneumatic seals might look similar—but their performance profiles differ.
Pneumatic seals handle high-speed, low-pressure air. Hydraulic seals work under slow, high-pressure oil flow. Using one in place of the other causes leaks, wear, or failure.
Pneumatic vs Hydraulic Comparison
| 재산 | 공압 씰 | 유압 씰 |
|---|---|---|
| 압력 범위 | Up to 10 bar | Up to 400 bar |
| Working Fluid | Compressed air | Hydraulic oils |
| Material Type | NBR, FKM, TPU | 폴리우레탄, PTFE, NBR |
| Primary Concern | Friction, speed, contamination | Pressure retention, durability |
| 비용 | 낮추다 | 더 높은 |
결론
Pneumatic cylinder seals are your first line of defense against air leaks. Knowing each seal's role and material improves system reliability, reduces cost, and boosts productivity.
Need help picking the right pneumatic seal?
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