The APA 20/30 and APA 20/40 are the smallest Ammann Add-On Compactors and work with mini excavators in the range of 3 tons to 5 tons, often in gardening and landscaping applications.

The APA 20/40 can be mounted in a few minutes and does not require fully hydraulic quick coupling devices.

The APA 20/40 is equipped with a two-shaft directional exciter featuring a high frequency and low amplitude, which helps protect both the excavator and surrounding buildings.