Transmission

Helium leak test

Leak test for gearboxes

Detected leakages from gearboxes using helium

The precise inspection of gearbox housings and mounted gearboxes for leaks is becoming increasingly important. While in the past cast aluminum housings were often tested using the differential pressure method, today’s test specifications require a more precise method. Helium is ideal here because it enables a dry and very precise test method.

Test object

From practice

Helium Leak Test – Transmission
Technical specifications
  • Helium Leak Test (HeLt) for hybrid gear boxes
  • Leakrate: 3,6 · 10−3 mbar · l/s
  • Test pressure: 300 mbar
  • Cycle time 140 seconds (25 pph)
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