Buyers must prioritize the nominal pressure (tonnage), typically ranging from 80T to 400T, depending on the maximum tire size to be serviced. Ensure the machine features a high-strength C-frame or four-column structure to prevent deformation under heavy loads. Key components should include hard chrome-plated piston rods for wear resistance and integrated hydraulic manifolds to minimize leakage risks. Additionally, verify the stroke length and daylight (opening height) to ensure compatibility with your largest tire and rim assemblies.