Vacuum and Leak Detection in the Automotive and Transport Industry

Leak detection and end‑of‑line leak testing

Ensuring the safety and reliability of automotive components is essential, as failure leads to safety risks, recalls, and loss of trust. This applies especially to critical systems like batteries, fuel tanks, and HVAC units. Leak detection methods require maintaining optimal pressure in the system to ensure accurate results. Leak detection and end‑of‑line testing technologies from Pfeiffer deliver highly accurate tightness verification, with optional automation, for final-stage quality control.

Leak detectors from Pfeiffer – whether stand-alone or integrable leak test modules – use tracer gas, air-based testing, or other methods to quickly and efficiently find even the smallest leaks, enabling high throughput and reduced manufacturing costs at assembly lines. Efficient and fast testing methods help reduce cycle times and production costs. The choice and order of testing methods depend on regulations, part geometry, and required leak rates, making correct method selection essential for compliance. During testing, changes in system performance or pressure can help find leaks, ensuring every vehicle component leaving production meets stringent industry standards.

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Coating

Coatings in automotive and transport applications must deliver uniform layer quality, high throughput and reliable uptime – whether for protective layers on engine parts, optical coatings on sensors and displays, or advanced thin films in lightweight components. Challenges include energy reduction goals, irregular coating results from poor vacuum performance or leaks, upgrading legacy lines to modern equipment, and strict environmental controls for sensitive processes.

Pfeiffer provides turbomolecular vacuum pumps, vacuum booster and measurement solutions that ensure clean, stable vacuum conditions for PVD and CVD applications. With low risk of contamination, reduced power consumption and long maintenance intervals, our technologies enable cost-efficient, reproducible coatings across automotive and mobility manufacturing.

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