Three different design parameters of magnetic fluid seal are optimized for the maximum pressure differential capacity of the seal. The program finite element method magnetics (FEMM) based on finite element method is used to find the magnetic flux inside the gap for all the combinations of the design parameters. The data are analyzed using the MINITAB statistical analysis software. The multivariable regression analysis technique is used to find the percentage effect of different parameters and also the optimized dimensions. The effect of magnetic fluid volume on maximum pressure differential capacity of a seal is observed, and the optimized volume is found. The results provide enough data to design and fabricate the seal. This seal can be used in positive as well as negative pressure applications. For example, as vacuum rotary shaft seal in low-pressure chemical vapor deposition machines, pressure seal for stirrer shaft in chemical process chambers to seal toxic gases. This seal can also be used as an exclusion seal, such as a bearing protection seals in robotic arms used in manufacturing plants.

磁性流体密封件的三个不同设计参数已针对密封件的最大压差容量进行了优化。基于有限元法的程序有限元法磁学（FEMM）用于查找所有设计参数组合的间隙内的磁通量。使用MINITAB统计分析软件分析数据。多变量回归分析技术用于查找不同参数的百分比效应以及最佳尺寸。观察到磁性流体体积对密封件最大压差容量的影响，并找到了最佳体积。结果提供了足够的数据来设计和制造密封件。该密封件可用于正压和负压应用。例如，作为低压化学气相沉积机中的真空旋转轴密封，化学处理室中搅拌轴的压力密封可密封有毒气体。该密封件也可以用作排他性密封件，例如制造工厂中使用的机械臂中的轴承保护密封件。