Compact Roller Vibration Frequency: 3600 VPM vs 4000 VPM Compact Roller Vibration Frequency: 3600 VPM vs 4000 VPM 👤 By Equipment Experts 📅 Ultimate Compaction Guide You look at roller spec sheets. You see Compact Roller Vibration Frequency numbers. 3600 VPM. 4000 VPM. You wonder which one works better for...