Piston seal Prädifa series MK, Ultrathan® | Product Series

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Diámetro exterior (mm)

Diámetro interior (mm)

Altura del elemento (mm)

Ancho de la ranura

Temperatura mínima de servicio (C)

Temperatura máxima de servicio (C)

Material de la junta

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Piston seal Prädifa series MK, Ultrathan® Piston seal Prädifa series MK, Ultrathan®

Piston seal Prädifa series MK, Ultrathan®

Puntos de venta

Piston seal for pneumatic cylinders, single-acting. U-cup design with integrated guiding function and cushioning buffers.

Especificaciones técnicas

  • Tipo de aplicación térmica: Low Temperature (< -35°C), Standard Moderate Temperature (-35 to 100°C)
  • Medio: Pneumatic
  • Opciones de material de polímero: Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)
  • Presión de trabajo máxima: 12 bar
  • Temperatura mínima de funcionamiento: -45 to -30 °C
  • Temperatura máxima de funcionamiento: 80 to 95 °C
  • Velocidad de corte máxima: 1 m/sec
  • Unidad de medida: Length: mm
  • Mecanismo de amortiguación: Yes
  • Rango de presión: Pneumatic Pressure (< 16 bar)

Descripción completa del producto

The MK piston seal made of wear-resistant Ultrathan® is a sealing element with an integrated guiding surface and cushioning buffers. This seal-guide element can be used both on pistons with or without a permanent magnet. When used in magnetic pistons, the seal-guide element encapsulates the permanent magnet. The front-end cushioning buffers serve to absorb shocks. For double-acting cylinder designs, the MK seal profile may also be used in a back-to-back arrangement.

• The asymmetrical retention groove ensures optimum positive connection between the sealing element and the piston.
• Cushioning buffers on the piston´s front faces with integrated ventilation ducts provide for mechanical cushioning of the cylinders.
• Multi-functional sealing element. The guiding area at the sealing element performs the guiding function in the cylinder. However, due to its geometry the sealing element is not suitable for absorption of high radial forces or long strokes.
• Multi-functional element: seal, guiding and cushioning element.
• Optimal front-side sealing effect due to favourable cushioning buffer geometry.
• Prevents metallic contact between the piston and cylinder. Ideal for light-metal and plastic cylinders (ridging).
• Long service life thanks to application-optimized compounds.
• Easier installation.
• Assembly on one-part piston is possible.
• Excellent media resistance in case of suitable compound selection.
• Low compression set.

Range of application:
For use in pneumatic cylinders.

Documentos relacionados

Literature and Reference Materials
Pneumatic Seals--PTD3351
Compound Data Sheet TPU P5010
Installation Guidelines for Piston Seals--PTD3351
Storage and Cleaning of Elastomer Seals--PTD3032
Ultrathan®--Piston seal / guiding element MK--PTD3351
Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Mixing the right ingredients: Material Development at Parker-Prädifa
Parker Final Exam in Physics / Sealing Systems Put to the Test
Documentación y materiales de referencia
Juntas Neumáticas--PTD3351
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Productos Diámetro exterior (mm) Diámetro interior (mm) Altura del elemento (mm) Ancho de la ranura Temperatura mínima de servicio (C) Temperatura máxima de servicio (C) Material de la junta
MK1206P5010 12 6 5.9 5.9 -30 80 P5010
MK1608P5010 16 8 5.9 5.9 -30 80 P5010
MK2010P5010 20 10 5.9 5.9 -30 80 P5010
MK2510P5010 25 10 6.15 6.150 -30 80 P5010
MK3225P5010 32 25 7.15 7.15 -30 80 P5010
MK4033P5010 40 33 7.65 7.650 -30 80 P5010
MK5043P5010 50 43 7.65 7.650 -30 80 P5010
MK6353P5010 63 53 9.9 9.9 -30 80 P5010
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