Method of dismantling air conditioner

A method for disassembling an air conditioner including a heat exchanger, comprising the process of:

• separating the heat exchanger from the air conditioner by cutting both ends of the heat exchanger;
• wherein the process of separating the heat exchanger uses a cutting device comprising at least a first rotating unit and a second rotating unit, each of these rotating units comprising:
• a rotor with a principal plane,
• a spindle provided in a normal direction to the principal plane, and
• at least one impacting body mounted on the spindle rotatably,
• wherein the impacting body is mounted so that a predetermined fitting gap is provided between the impacting body and the spindle and a part of a periphery of the impacting body can be positioned beyond a periphery of the rotor, and
• the separating process allows the impacting body of the first rotating unit and the impacting body of the second rotating unit to impact on the air conditioner sequentially while rotating the rotating units in a plane parallel to the principal plane of the rotor at a high speed and holding the first and second rotating units so that a circular path of a tip of the impacting body of the first rotating unit and a circular path of a tip of the impacting body of the second rotating unit during the rotation substantially are on the same plane, makes a cutting depth by the impacting body of the second rotating unit larger than that by the impacting body of the first rotating unit, and allows the impacting body of at least one of the rotating units to impact on the heat exchanger at least at a critical impact velocity, thereby cutting/processing the heat exchanger in a direction substantially parallel to the principal plane of the rotor.