Funny. I've just asked Tormach if they have UL (for US market), CSA (for Canada) or CE (for EU). The guy who replied may not be very knowledgeable about safety approvals but he told me they don't have any of these. Given that they sell directly to customers in the N American markets and sort of directly to customers elsewhere, he's either misinformed or they are flying very close to the wind there.
My suspicion is that for electrical safety they may be relying on the components within their products already having approvals so that their system then doesn't require approval at the system level. Again, I'm not convinced that is the authorised approach although doubtless those components are reasonably well designed so you may argue they are following best practice.
I don't have a Tormach myself although I'd love one. I'd also be perfectly happy to own one even without safety approvals. But the approvals situation seems rather surprising. I guessed that they use Leadshine PSUs as they appear to use Leadshine stepper drives, so I looked closely at the Leadshine PSUs I recently bought from the US-based distributor. Interestingly, they are completely devoid of approvals marking too. I'd be interested to know if anyone has a PCNC mill and is able to find any UL/CSA/CE markings on the system or the main components within (PSU and VFD).
I've taken many electrical products through the various global approvals processes, often at great effort. Hopefully Tormach will find their way through this business and continue to produce exciting feature-rich products – I wish them well.
Murray