Quote Originally Posted by magicniner View Post
I'll take your avoidance of a direct question as a "No" and confirmation that glass will still be cracked by impacts which merely dent polycarb.
Whilst polycarbonate does not crack like glass, having polycarbonate only windows does not meet the Health & Safety BS EN ISO standards as polycarbonate is quickly chemically degraded by machine working fluids (MWFs) (you may have some very old ‘white’ panels?). Polycarbonate, is however, the best material to provide the protection so the layer of glass is there to protect the polycarbonate from the MWFs. Polycarbonate is also easily scratched by swarf so the glass helps with that too.

The ejection of part/s always presents a risk of cracking to glass yet, dependent on glass thickness, this can be mitigated against. For example, 8mm glass is less likely to crack than 4mm and we use 4,5,6,8 and even 10mm facing glass.

I hope this provides some clarity. If you need further assistance, I am happy to respond here or via my email above.