Abstract: The raw material in used tire carcasses is reclaimed by cutting the tire into quarter segments and freezing the segments with liquid nitrogen in a controlled environment freezing chamber. Rotary air locks pass material to and from the chamber. Steel and fiber materials are removed in a stripping chamber where the frozen rubber both broken into smaller chunks. A robot arm with magnets and hooked fingers removes the fiber and steel. The rubber chunks are then pressed through dies to reduce the size to a uniform rubber crumb. The press consists of multiple pointed fingers in registration with multiple sized holes in a screen type die. The rubber crumb is removed with a suction device and dried using heat from a closed loop nitrogen cycle on the way to collection containers.