TOZEN Model PTM-AP is a series of unhoused spring vibration isolators consists of high deflection, laterally stable steel springs assembled with a leveling device at the top and non-skid acoustical pad at the bottom. It employs moulded rubber upper and lower holding cup with build in levelling feature and a mounting plate base to allow for bolting the isolators to the structure. Model PTM-AMS are multiple spring isolator for heavy loading applications.