When procuring a creep testing machine, you must prioritize load accuracy and stability. Ensure the machine offers a load measurement accuracy of ±0.5% or better of the indicated value. For high-temperature applications, the furnace temperature uniformity is critical; look for systems that maintain ±1°C up to 1000°C. Additionally, the displacement resolution should be at least 0.001mm to capture minute deformations over long durations. Verify if the system uses electronic servo-motor control for constant load maintenance or lever-arm weights for traditional static testing.