ALD DualTherm he dual chamber vacuum furnace type ALD DualTherm® offers high flexibility and is mainly used in the production of single parts and small batches in the automobile and aviation industry as well as in the in the tool industry. Primary applications are: Neutral hardening up to 1,200 °C, Low pressure carburization up to 1,050 °C, Low pressure carbonitriding, Annealing under partial pressure up to 1,250 °C, Vacuum brazing.