Grade: commercial Time: 60s Vibration: Tri-planar, mostly vertical, 30-50 times per second @One step increments possible @Pre-settings include 35, 40 ,45 and 50 Hz Vertical Displacement: High/Low settings Maximum load : 397 lbs / 180 kg Frequency Range: 30 - 50 Hz Frequency Adjust: 1 Hz increments Dimensions: 38in34in62in / 955mm870mm1580mm Machine Weight: 163 lbs/ 74kg or 150 lbs/ 68kg Power Supply: 220240 V, 50/60 Hz Motor Power: 2150W /350W 2AC Motor /1AC Motor