The RENNER SCALDING AND DE-HAIRING MACHINES are developed for a capacity of up to 240 pigs per hour. Dependent on the weights of the pigs, 1 or 2 carcasses are processed in the robust RENNER SCALDING AND DE-HAIRING MACHINE. The RENNER PADDLE WHEEL TANK, which is equipped with an intensive water circulation process and a precise temperature control provides for a perfect result. RENNER PADDLE WHEEL TANKS are heated with steam. Heat exchangers are optionally available as well as electric heating systems for smaller capacities. As an option, the de-hairing machines by RENNER can be equipped with a singeing device working with liquefied petroleum gas or natural gas. The last remaining bristles are removed by singeing in the machine. Optionally, a conveyor system can be installed below the de-hairing roller to evacuate the bristles.