Running a jumping jack rammer or a plate compactor all day can lead to a serious medical condition known as Hand-Arm Vibration Syndrome (HAVS), or "white finger." This is why modern industrial compaction equipment is designed with sophisticated vibration isolation. The engine and handle are decoupled from the base plate using heavy-duty rubber shock mounts (elastomeric isolators). In my testing, a machine with a well-designed Vibration-Dampened Handle can reduce the vibration transmitted to the operator's hands by over 40%. This allows for longer "trigger time" and reduces worker fatigue. When looking at a machine, don't just look at the engine horsepower; look at the m/s² (meters per second squared) vibration rating. A safer machine is a more productive machine.
