HT250 Gray Cast Iron Transmission Housing - Lost Foam and Resin Sand Casting Heavy Duty Gearbox Case

Specializing in the production of HT250 gray cast iron transmission housings, using advanced lost foam casting and resin sand casting processes to provide high strength, high precision transmission case castings for automotive, construction machinery, industrial equipment and other industries. The lost foam casting process has advantages of high dimensional accuracy, clear casting contour, and unlimited structural complexity; resin sand casting has characteristics of good casting surface quality and high dimensional stability. Our products use high-quality HT250 gray cast iron material, with tensile strength ≥250MPa, hardness HB170-241, with excellent wear resistance, damping capacity and good machinability,able to meet the usage requirements of transmission systems under high-speed and heavy-load working conditions. Casting dimensional accuracy reaches CT7-CT8 grade, providing reliable guarantee for subsequent precision assembly.