Steam Oxide Film Treatment｜Enhances anti-rust and corrosion resistance

In industrial machinery and equipment, surface oxidation and corrosion are key causes of deterioration that reduce both durability and visual quality. Steam Oxide Film Treatment is an environmentally friendly surface modification process developed to solve these issues. By oxidizing steel surfaces i ...

Carburizing Process｜Surface Hardening for Heavy-Load Parts

In the machinery and automotive industries, components subjected to high torque or impact loads such as gears and shafts often face severe surface wear. Enhancing surface hardness without compromising the core toughness is key to extending the component’s service life. The Carburizing Process is wid ...

Shot Peening Process｜Surface Reinforcement to Prevent Cracking in Heavy-Load Machine Parts

In the machinery and automotive industries, metal fatigue is a primary cause of premature cracking and failure in high-stress components such as gears, shafts, and powertrain parts. The Shot Peening process is a mechanical surface treatment that enhances fatigue strength by creating a compressive re ...

Gas Soft Nitriding Process｜Enhanced Wear Resistance with Nitride Layer for Various Machine Components

In mechanical and automotive manufacturing, maintaining surface hardness and dimensional accuracy is crucial. The Gas Soft Nitriding process offers an optimal solution for improving surface wear resistance without causing thermal distortion or cracking. This low-temperature, gas-controlled treatment ...

Carbonitriding Process｜Surface Hardening for Low-Carbon Steel

For low-carbon steels requiring enhanced surface hardness and resistance to wear, the Carbonitriding process (Carburizing–Nitriding) is one of the most effective heat treatment solutions. By simultaneously introducing carbon (C) and nitrogen (N) into the steel surface, this process creates a hard ye ...

TKM Series Heat Treatment Furnace｜30% CO₂ Reduction & Carburizing-Compatible for High-Efficiency Processing

The TKM Series by DOWA Thermotech is a high-efficiency heat treatment furnace supporting carburizing and other thermal processes, with over 30% CO₂ reduction ideal for mass production of automotive and industrial components in sustainable manufacturing. Developed in-house, the TKM Series combines ga ...

Z-TKM Series Vacuum Carburizing Furnace｜Up to 97% CO₂ Reduction for Sustainable Heat Treatment

DOWA Thermotech’s Z-TKM Series is a next-generation vacuum carburizing furnace delivering up to 97% CO₂ reduction and compatibility with green energy sources a breakthrough solution for eco-conscious, high-precision heat treatment. Built to match the performance and cost-effectiveness of conventiona ...

V-TKM Series Vacuum Furnace｜CO₂ Reduction & High-Efficiency Heat Treatment Co-Developed with Toyota

The V-TKM Series, co-developed by DOWA Thermotech and Toyota, is a next-generation inline heat treatment furnace that delivers up to 97% CO₂ reduction, supports small-lot flexible production, and reduces processing time by two-thirds ideal for smart, sustainable manufacturing. Based on Toyota’s “Jus ...

S-TKM Series Continuous Furnace｜3× Productivity & Space-Saving Heat Treatment for Mass Production

The S-TKM Series by DOWA Thermotech is a continuous heat treatment furnace that delivers up to 3× higher productivity than batch furnaces while reducing CO₂ emissions and saving factory floor space. It’s ideal for mass processing of automotive, industrial, and aerospace components. Equipped with a r ...

Hybrid Continuous Gas Carburizing Furnace｜30% CO₂ Reduction & 10% Faster Processing for Automotive Parts

DOWA Thermotech’s Hybrid Continuous Gas Carburizing Furnace combines tray pusher and roller hearth systems to deliver both 30% CO₂ reduction and 10% faster processing, supporting efficient, environmentally responsible heat treatment for mass production. This next-gen furnace integrates high-performa ...