Question about Industrial PCs

Hey Guys,

For a bit of context, most of my IT experience is I am a system support tech for a credit union with 6 years in the industry so far. I have been given a task by my stepfather to find a PC that will be able to run his industrial equipment in his shop, while being able to be withstand the temperature and dust conditions of his shop. so far I have recommended her build an office within it or a divider with a filter to try and keep the dust away from the pc. However, While looking for solutions I have discovered something I never encountered before. Industrial PCs or IPCs. Everything I have been reading about them seem to be what he's actually looking for, fanless heat tolerant PCs with a serial connection to run his CNC Routers. However, I wanted to hear some stories of people who have actually worked with these things. How well do they actually run in those enviroments? what is it like to troubleshoot them? Any Quirks that I should be aware of? Any issues with drivers or the like? any recommendations for which specific model?

If more information is required please let me know. also thank you in advance for any advice.