Processing and Testing

Processing and Testing of Pressure Compensation Seals

A Pressure Compensation Seal (PCS) is a functional part for which individually developed processing and testing systems are necessary. We offer different system solutions for small series up to fully automated processing plants and accompany you throughout the entire product development process.

General Processing Instructions

PCS surfaces must be protected from mechanical stress during the application and testing processes.

The airflow and water entry point tests provide the necessary information on functionality, thus ensuring error-free operation. 

We master the challenges of the different mounting systems for Pressure Compensation Seals with our individual solutions.

  • Self-adhesive Pressure Compensation Seals (PCS) require processing systems whose pressure stamps allow individual settings for time and force.
  • Ultrasonic weldable Pressure Compensation Seals (PCS) require application-specific sonotrodes and individual setting parameters.
Customer Acceptance of the Processing System

Our Quality Promise

  • Application and customer-oriented solution approaches
  • Functional tests (processing and testing) with original customer components and Schreiner PCS solutions
  • FAT (Factory Acceptance Test) or SAT (Site Acceptance Test)
  • Support for database connections 
  • CE (Conformité Européenne) / Declaration of incorporation of all devices 
  • Ensuring worldwide spare parts availability by using high-quality system components from brand manufacturers
  • Remote connection for system analysis
  • Worldwide on-site service
self-adhesive pressure compensation elements

Systems for Self-Adhesive Pressure Compensation Seals

Versatile processing solutions adapted to customer applications in combination with pressure compensation solutions from Schreiner Group.

  • Manual
  • Semiautomatic processing cell (customized)
  • Processing module for fully automatic process integration
System for application of self-adhesive pressure compensation seals
System for dispensing self-adhesive pressure equalization seals
ultrasonic-welded pressure compensation elements

Systems for Ultrasonic Weldable Pressure Compensation Seals

Ultrasonic welding flexibility for pre-cut and continuous Pressure Compensation Seals.

  • Manual processing cell
  • Processing module for fully automatic process integration
System for ultrasonic weldable pressure compensation elements
System for ultrasonic weldable pressure compensation elements
Airflow testing membranes

Test Station for Airflow Testing

Airflow is considered a measure of the gas permeability of a membrane. It indicates how great the protection of an enclosure is against compressive loads.

  • Manual test unit
  • Integrated test unit (individual process sequence)
Apply the airflow tester on top of the component hole.
The value indicated on the display of the airflow meter shows if the PCS functions correctly.
Water entry point testing for membranes

Test Station for Water Entry Point Testing

The water entry point is a gauge of the water retention capacity of a PCS. It indicates how high the protection of a membrane is against water ingress in an enclosure.

  • Manual Test Unit
Fill the vent hole with test water (water + 0.5% red, water-soluble ink such as oil-free Pelikan stamp ink).
Press the tube with the silicone rubber end against the component hole. Perform the water tightness test using compressed air. The compressed air will press the water against the PCS. Use a digital pressure gauge to set the required pressure level.

Optional System Extensions

Centring Unit
Increasing the positioning accuracy of the PCS on a component

Surface Pretreatment with Plasma
Activation and treatment of the component surface 

Rotary Indexing Table
Reduction of the cycle time of the processing

Presence Check
Ensuring PCS processing (compensating for empty spaces and avoiding multiple product placement)

NOK/OK Parts Marking
Marking of good/bad parts

Software Connection
MES (Manufacturing Execution System) and BUS (Binary Unit System) connection

PCS Centring Unit
Centring Unit
PCS Surface Pretreatment with Plasma
Surface Pretreatment with Plasma
Rotary Indexing Table
Rotary Indexing Table
PCS Presence Check
Presence Check
PCS Parts Marking
NOK/OK Parts Marking
Software Connection
Software Connection
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When applying, the sensitive membrane structure of the aeration elements requires special care.
▶  Processing of Pressure Compensation Seals Application of sensitive membranes

The Most Important Properties of Membranes

A membrane enables air exchange in enclosures and protects the electronics from liquid media and dirt. Learn more about the key functionalities and features of our aeration solutions.

Learn more

Air exchange membrane
Product Solution

Pressure Compensation Seals for the Technical Industry

Pressure Compensation Seals enable pressure compensation in enclosures with their air-permeable membrane with oleophobic properties.

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Product Solution

Pressure Compensation Seals for the Automotive Industry

We offer Pressure Compensation Seals for numerous automotive applications: from sensors to electric motors to vehicle lighting.

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If you have any questions, please contact us.