... of the impact of large, light weight, adjustable shock interval.How to work:Air Hammer internal - strong magnetic magnets, in the action ... solenoid valve power, the product inside the gas removed, the hammer with spring back to its original position. Air hammer impact force ... 415.1~109.016.5kgWarning: Pneumatic vibrators will do destructions to equipment, if the vibration force is over power, please ...