Jack Hammer

What is Jack Hammer

Definition of Jack Hammer in Construction

A jack hammer is a hammer that is used for demolition or removal of asphalt pavement, concrete slabs, or general hammering of rigid materials, to crack and disintegrate this material. Most jack hammers function off of an air compressor that supplies high pressure air through a hose into the jack hammer. The jack hammer consists of a piston within a cylinder that moves back and forth due to the constant air pressure supplied by the compressor. The cutting tip of the jack hammer moves back and forth on the head of the piston, which is being rapidly pushed out and then relieved by a valve and will then move back. This constant and repeated hammering effect will produce the powerful thrusts of the tip, and the breaking of the material being hammered against.