Cummins Onan generators undergo intense testing for noise and vibration

Testing a Cummins Onan RV generator in the state-of the-art testing facility.

Cummins Onan generators are known worldwide for low-noise, low-vibration units. These qualities are the result of extensive noise, vibration and product testing.

Cummins Onan uses the world’s largest sound cell, a 13,000-square-foot hemi-anechoic chamber equipped with specially soundproofed walls that prevent sound reflection. Eliminating all sound reflection (echo) allows more accurate measurement of the sound quality and decibel level from the test source.

Cummins Onan carries out supplementary testing of its generators, including:

  • Extensive structural tests for more robust brackets
  • Resonance/fatigue tests to ensure long term structural integrity
  • Impact tests on packaging so generators arrive intact—even in harsh shipping conditions
  • Rough seas and harsh road condition simulation tests guarantee long product life

The result of this effective testing is a high quality and reliable generator that is known globally for low noise and minimal vibration.

  1. Tom Quinn says

    Hi- I have the Cummins Onan QD 3200.I was asked at one National Park campground to turn it off. I just bought a sound meter. Our generator at approx 1/2 load showed about 78 dB. This generator was installed in a Winnebago View. According to the spec it should be at 68 dB or less. Need to get some help to quiet this unit down!

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