I'm having no luck researching this topic so my terms may be wrong or my entire premise faulty. I have found a related question that might be a corollary: "Can I kill a cyborg with magnetism?"
My setting is the distant future where sentient androids exist. They are electro-mechanical with no biological parts. I am writing under the assumption they would be susceptible to electromagnetic fields (EM weapons, superconductors, etc). Under intense magnetism their bodies will seize up, but in time they often recover because their skull and "bones" shield their nervous system.
My question is about an alternate design of android that would be passive to magnetic forces, or otherwise resistant to the harmful effects. They are designed to operate within shifting magnetic fields inside a superconducting machine. My idea is that they are built on a similar skeletal frame that shields their nervous system, but their outer bodies are not susceptible to magnetism. They still function, think, and ambulate under conditions that would paralyze the normal androids.
Can an android's body be "immune" to electromagnetic forces?
And to prevent a world-breaking technology, why wouldn't all androids be made with this kind of body? What are the limits and trade-offs that make traditional electromechanical bodies "better" and these specialized bodies only suitable under specific environments?