Our largest Ammann compaction plates, the APH 5030, 6530 & 100-20 are all fitted with the unique Triple-Shaft Exciter system. Which has been designed to improve the maneuverability and climbing ability of these plates in a revolutionary way.
Effectively the triple shaft system allows the plates to be flexible and can be used in higher clay and cohesive soils, even with lots of moisture.
When working in cohesive material the unfavorable tilting action of plates, fitted with conventional double shaft exciter systems, and the lack of powerful climbing ability provided poor compaction results.
This is done without the usual suction effect, which can leave plates at a standstill.
The ease in handling and maneuvering of the plate is particularly helpful when the use of low frequency/high amplitude is required.
Arguments for Ammann Plates with Triple-Shaft Exciter system: