Over 40 years of established expertise. Over 4500 furnaces, integrated heat treatment systems and solutions delivered so far, worldwide. A distinguished Commercial Heat Treater, with the most stringent quality certifications, an exhaustive process capability range and customer approvals from some of the world's most quality conscious organizations. By managing and maintaining a state of art heat treatment facility with processes ranging from Hardening to Nitriding, Solutionizing to Vacuum Annealing & Brazing, we as users ourselves build furnaces and integrated heat treatment systems that are built-to-last in construction, easy to maintain and are result-oriented in performance. At Therelek, we make sure the equipment we supply and our heat treatment facility are fine-tuned to the individual needs of our customers, and operate with maximum ease and minimum maintenance as only an experienced furnace manufacturer can ensure.