4 eccentric shafts make this compactor uniquely maneuverable

By Larry StewartOctober 17, 2022

With an operating height of just 27.6 inches, Ammann’s eAPX 68/95 3D vibratory plate compactor fits supported trench applications. Photo: Ammann

Amman rethought remote-controlled vibratory plate compactors in designing the new battery-powered eAPX 68/95 3D prototype.

Four eccentric-weighted shafts configured in an X shape, driven by four electric motors, combine with a curved base plate to provide the compactor with unique maneuverability to move in an arc, a circle or turn on the spot. The eccentrics generate 1,370 pounds (620 kg) of compaction force.

The eAPX 68/95’s appearance – with an operating height of just 27.6 inches (700 mm) – sets the machine apart. That height and the machine’s ability to move in all directions aims to make it a great fit for trench compaction, including trenches with support systems and cross braces.

Photo: Ammann

A remote-control console dictates the compactor’s movements. At a safe distance, and with the best possible overview, the operator has everything under control. The user can steer the eAPX 68/95 into the hard-to-reach spots where compaction is needed.

The plate can run continuously for approximately 80 minutes before recharging is needed. Recharging only takes about 30 minutes. The eAPX 68/95 utilizes lithium iron phosphate (LFP) batteries to maximize safety. Ammann says the batteries and their management system “are particularly robust against high temperatures, overcharging, and mechanical damage.”

The machine requires little maintenance as it has no hydraulics, operating fluids or gears.

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