The body is placed in a card board "coffin" or a regular coffin. It is then placed into an oven that burns at about 4500 degrees for many hours. the ashes are then collected and placed into a plastic container and returned to a family member/funeral home
The body is first loaded onto the conveyor or a tilt mechanism to deliver the casket in the incinerator. After the conveyor is ready, it lowers the body and the burning of the body begins until it is fully into ashes. After the process is complete, the bone fragments are sorted out to get rid of larger metallic debris. Read more on http://www.ehow.com/how-does_4987592_how-cremation-done.html.