About HTS

About HTS
(Heat Treatment Services)

Heat Treatment Services (HTS) is a globally operating heat treatment service platform delivering advanced vacuum heat treatment solutions using state‑of‑the‑art ALD technologies. Operating multiple service centers across Europe, North America, and Asia, HTS provides industrial‑scale heat treatment services to customers who require premium quality, repeatability, and minimal distortion without investing in in‑house facilities.

HTS facilities are equipped with ALD’s proven vacuum furnace systems, including ModulTherm® and DualTherm® technologies, enabling processes such as Low-Pressure Carburizing (LPC), High Pressure Gas Quenching (HPGQ), vacuum hardening, annealing, tempering, nitriding, brazing, and cryogenic treatment. These capabilities support both high‑volume production and technically demanding applications across automotive, aerospace, mechanical engineering, tooling, and other industrial sectors.

With locations in Germany, the United States, Mexico, and China, HTS combines local service support with global process consistency and engineering expertise. Each site operates to high quality standards and is designed for recurring production processes, ensuring reliable performance, dimensional control, and optimized metallurgical results for customers worldwide.

As part of ALD’s global service offering, HTS bridges advanced furnace technology and contract heat treatment services, delivering proven solutions for customers seeking precision, scalability, and operational efficiency.