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GP Series Compact Automation Wipers
The GP series wiper rings (GPA and GPK models) are axially compact wiper seals designed specifically for pneumatic applications and high-frequency light industrial automation. Made from high-tech polyurethane or special elastomers, they ensure optimal removal of fine dust, moisture, and light contaminants from the rod, reducing friction and preventing stick-slip effects.
| Profile / Type | Geometric and Functional Description |
|---|---|
| GPA Standard Type | Compact wiper profile with an asymmetrical single lip for elastic installation in a semi-open groove. Ensures minimal axial space and maximum smoothness. |
| GPK Anti-pressure Type | Advanced design featuring a dynamic rear relief groove. This variant completely eliminates the risk of accidental wiper blowout caused by parasitic air back-pressures inside the cylinder. |
| Material / Compound | Peripheral Speed | Temperature | Max Pressure |
|---|---|---|---|
| PU Polyurethane Techno-polymer 90 ShA | Up to 2.0 m/s | -35 / +100 °C | Standard atm. pressure |
| NBR Nitrile Rubber 75 ShA | Up to 1.5 m/s | -30 / +110 °C | Standard atm. pressure |
| FKM Fluoroelastomer / Viton | Up to 3.5 m/s | -20 / +200 °C | Standard atm. pressure |
Compact Design
The reduced axial envelope allows for a drastic reduction in the overall size of the pneumatic cylinder head.
Optimized Wiper Lip
The sharp geometric profile of the lip maintains constant contact on the rod while minimizing frictional drag.
Pressure Relief (GPK)
The special groove instantly vents accumulated trapped air, preventing extrusion from the groove.
| Standard GP Type (PU) | Maximum wear and tear resistance. Provides excellent durability in heavy-duty high-speed automation systems. |
| Premium GP Type (FKM) | Specifically engineered for high-temperature environments or aggressive chemical applications with synthetic fluids. |
Manufactured in full compliance with international housing tolerances and dimensional specifications of ISO 6195 Type A / DIN 3760.
| Manufacturer | GPA Standard Type | GPK Anti-pressure Type |
|---|---|---|
| Net Seals | GPA / P9 Wiper Series | GPK Wiper Series |
| Freudenberg (Simrit) | Profile P9 / PRW1 | Profile PU6 |
| Parker Prädifa | Profile A1 | Profile A2 |
| Dichtomatik | Profile WRAM | Profile WRAM-P |
| Kastas Sealing Tech. | Profile K09 | Profile K12 |