Rod seal Prädifa series HL, Ultrathan® | Parker NA
687424
687424

Rod seal Prädifa series HL, Ultrathan®

Rod seal for hydraulic cylinders, single-acting. Friction-optimized U-cup design with cascading dynamic sealing edges.

Select attributes to refine your product search.
Description
    The HL Ultrathan® rod seal is a friction-optimized sealing solution for mobile and stationary hydraulics featuring a unique functional principle. The single-acting rod seal with interference fit on the outer diameter has pressure-activated, cascading sealing edges for clearly reduced static and dynamic friction in hydraulic cylinders and higher effectiveness of hydraulic systems.

    • Minimal break-away and dynamic friction and no stick-slip tendency ensures uniform motion even at low speeds.
    • No stick-slip tendency in case of low sliding speeds.
    • Low break-away and dynamic friction, even after prolonged standstill under high pressure.
    • Constantly low dynamic friction throughout the part's service life.
    • Insensitive to pressure peaks.
    • Improved lubrication due to pressure medium deposit in the dynamic contact area.
    • High extrusion resistance.
    • Excellent media resistance in case of suitable compound selection.
    • Suitable compounds available for special requirements of the chemical process industry.
    • Suitable compounds available for special requirements of the food processing industry.
    • Dimensions according to ISO 5597.
    • Short axial assembly length.
    • Installation in closed and undercut housings.
    • Low compression set.
    • Further dimensions of machined series with short lead times available.

    Range of application:
    Mainly for applications with increased requirements regarding friction and sliding behaviour in mobile and stationary hydraulics. The dimensions mainly conform to the requirements of ISO 5597 for housing and diameters respectively.
Description

Performance Characteristics

Thermal Application Type

High Temperature (< 205°C)
Standard Moderate Temperature (-35 to 100°C)
Low Temperature (< -35 C)

Media

Hydraulic

Polymer Material Options

Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)

Maximum Operating Pressure

250 bar

Minimum Operating Temperature

-45 to -35 °C

Maximum Operating Temperature

85 to 110 °C

Maximum Surface Speed

1 m/sec

Unit of Measure

Length: mm

Cushioning Mechanism

No

Pressure Rating

Medium Pressure (< 250 bar)

FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users having technical expertise. The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors. To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems...
Please configure part to display CAD

contact us