The software consists of function modules such as speed control, parameter input, data processing, result observation, record retrieval, chart display & print, data storageDiversified Testing Methods: Test of residuals height or deformation of spring under preset testing load. Test of testing load under preset height or deformation of springMultiple Points Data Auto-Collection: Avoid the impact of spring stress on the testing data; the total testing process is completely automatic.Over load protection and thus keep the load cell free of damagePowerful data-processing and statistic functions are able to plot stiffness curve, calculate spring segment stiffness, plot the normal distribution curve, and calculate the index of process capability