Metallurgical Excellence in Heat Treatment

Fluidized bed and pit-type furnaces for batch sizes up to 1000 kg. Controlled nitrogen diffusion for outstanding wear resistance and fatigue strength.

At Apex Engineering, we provide Induction Hardening using advanced Vertical and Horizontal Scanning Systems with a hardening capacity of up to 1500 mm. Our PLC-controlled induction systems deliver precise, consistent, and repeatable hardening for shafts, gears, pins, rollers, and other critical engineering components.

Our Austempering process is carried out using a Rotary Retort Furnace for small components (40–50 kg batch capacity) and a GCF Pit Type Furnace for larger components, including ADI castings, with a capacity of up to 1000 kg. The resulting bainitic microstructure provides excellent toughness, ductility, and dimensional stability.

We offer Carbo-Nitriding using a Rotary Furnace with a batch capacity of 25–40 kg. The process combines carbon and nitrogen diffusion to produce a hard, wear-resistant surface with a case depth up to 0.3 mm, making it ideal for precision low-carbon steel components.

At Apex Engineering, we offer the QPQ (Quench–Polish–Quench) process, also known as the SALT BATH Nitrocarburizing + Polishing + Post Oxidation process. QPQ is a premium duplex surface treatment designed to significantly improve wear resistance, corrosion resistance, fatigue strength, and sliding performance while producing an attractive black finish.

We offer Liquid Nitriding using a salt bath process with a batch capacity of up to 150 kg to achieve a uniform case depth of up to 0.3 mm. This fast and efficient treatment enhances surface hardness, wear resistance, and anti-galling properties, making it ideal for precision engineering components.

Hardening & Tempering – Rotary Furnace , Gas Nitriding – Pit Type