The guide arm is a load-bearing structural component within the automotive suspension system, responsible for directional guidance and force transmission — functions that place stringent demands on both dimensional precision and material mechanical performance throughout manufacturing. This complete equipment series is systematically built around the full process path from raw material forming through to final heat treatment strengthening. The rolling production line and rolling heating furnace operate in close coordination, with precise thermal control supporting the rolling forming process to ensure cross-sectional dimensional accuracy and uniform internal microstructure across the profile. The guide arm ear curling machine performs precision forming of the eye ends at both extremities of the arm body, maintaining the geometric accuracy and coaxiality of assembly bore positions critical to suspension kinematics. The guide arm ear heating furnace provides a stable, controllable localized thermal environment specifically for the ear curling operation, effectively reducing forming resistance while improving eye forming quality and surface integrity. The guide arm heat treatment production line serves as the concluding stage of the full process chain, applying rigorously controlled quenching and tempering sequences to impart target hardness and comprehensive mechanical properties — ensuring the fatigue life and reliability of the finished guide arm under complex, multi-directional service loads. The five equipment categories connect organically to form a complete guide arm manufacturing solution spanning hot roll forming, precision end processing, and heat treatment strengthening.