Pit-Type Nitriding Furnace

For wear-resistant components like extrusion screws, engine valves, and precision gears that require extreme surface hardness with minimal dimensional distortion, gas nitriding is the ideal solution. Our Pit-Type Nitriding Furnace utilizes gaseous ammonia at controlled temperatures to diffuse nitrogen into the surface of alloy steels, creating a hard, corrosion-resistant nitrided layer. Because nitriding operates at a lower temperature compared to carburizing, it avoids the rapid quenching phase, which is a major benefit that virtually eliminates the risk of component warping or dimensional changes during thermal treatment.

Over our 24 years of manufacturing industrial furnaces, we have refined the atmosphere circulation system of the Pit-Type Nitriding Furnace to ensure absolute uniformity of ammonia gas distribution. This furnace features a high-performance, heat-resistant convection fan installed in the lid, which continuously circulates the gas through the load, achieving highly consistent nitriding results across all parts in the batch. Our engineering designs, trusted by precision manufacturers like Midea and BYD, incorporate automated ammonia dissociation control, giving you precise influence over the white layer thickness and the overall nitrided depth. We build our equipment to be robust and highly controllable, helping you deliver superior wear-resistant products to your clients.