Spiral mixers are machines used in the food industry to mix dough and other ingredients. These mixers are equipped with a large, rotating spiral-shaped arm that is used to mix the dough. The arm is typically made of stainless steel and is powered by an electric motor. The speed of the arm can be adjusted to accommodate different types of doughs. The machine also includes a hopper to pour in the ingredients and a bowl to contain the dough while it is mixed. The bowl can be tilted to facilitate the removal of the mixed dough.