GPTA Wiper Seal/PT1 Seal consists of a wear-resistant ring with both a sealing edge and a dust lip, supported by two O-rings that act as preloading elements. It provides excellent sealing performance, dust protection, and durability for hydraulic and pneumatic cylinder applications.
Technical Data
Speed: ≤15m/s
Temperature: -30℃~+200℃ (Depending on the material of O ring)
Medium: hydraulic oil, water.
Applications: GPTA wiper seal/PT1 seal is suitable for use in agricultural machinery, hydraulic presses, injection molding machines, hydraulic control systems, forklifts, cranes, rolling mills, and material handling equipment.
Materials
| Slide ring | Elastomer | |
| Standard | PTFE filled bronze | NBR black |
| Special (on request) | PU red | FKM brown |
Features
Double-lip dust seal design improves overall sealing performance.
- Low friction and minimal stick-slip behavior.
- Excellent adjustment and positioning capability during operation.
- Customizable materials available for short-stroke and high-frequency applications.
- High reliability, capable of withstanding full working pressure for short durations.
Installation Profile
Specification Table (mm)
| Name | d | D | h |
| GPTA | 20 | 27.6 | 4.2 |
| GPTA | 25 | 32.6 | 4.2 |
| GPTA | 28 | 35.6 | 4.2 |
| GPTA | 30 | 37.6 | 4.2 |
| GPTA | 32 | 39.6 | 4.2 |
| GPTA | 35 | 42.6 | 4.2 |
| GPTA | 36 | 43.6 | 4.2 |
| GPTA | 40 | 48.8 | 6.3 |
| GPTA | 42 | 50.8 | 6.3 |
| GPTA | 45 | 53.8 | 6.3 |
| GPTA | 50 | 58.8 | 6.3 |
| GPTA | 55 | 63.8 | 6.3 |
| GPTA | 56 | 64.8 | 6.3 |
| GPTA | 60 | 68.8 | 6.3 |
| GPTA | 63 | 71.8 | 6.3 |
| GPTA | 65 | 73.8 | 6.3 |
| GPTA | 70 | 82.2 | 8.1 |
| GPTA | 75 | 87.2 | 8.1 |
| GPTA | 80 | 92.2 | 8.1 |
| GPTA | 85 | 97.2 | 8.1 |
| GPTA | 90 | 102.2 | 8.1 |
| GPTA | 100 | 112.2 | 8.1 |
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