I have forwarded a copy of your post to our reps in the UK.....we have more than one! They will be contacting you, although if you send me your direct contact info it will help...as they likely are not involved in this forum. Please send it direct to email@example.com
Here is a link to the Hypertherm website info on consumables for every Hypertherm plasma torch. The Max100 is listed under discontinued systems as it has been out of production for a few years...however there are thousands of them operating around the world...and parts and consumables will be supported for many years.
There are 40 Amp shielded consumables for your torch....you will see them in this consumables listing on the web link. There are both shielded and unshielded consumables....the shielded consumables produce far superior consumable life..as the nozzle is protected from pierce spatter, and also is protected form the occasional contact with the plate when cutting thin materials that may warp during the cutting.
I would only suggest using non shielded consumables if you were cutting very thin materials, and also assuming that you have a good quality torch height control that can pierce at 1.5 times the cut height, then index down to the suggested cut height....without making any contact with the plate. Under these ideal conditions the non shielded parts will work adequately....
In regards to the two separate shield caps:Both perform exactly the same on your torch with unshielded consumables, the one with the separate deflector can also be used with the shielded consumables....by unscrewing the deflector and screwing on the shield.
In my opinion, the shielded consumables are far superior. They outsell the non shielded parts at about a 20:1 rate. We continue to produce the non shielded parts as there are some customers with special applications that like to use them!
Please forward your direct contact info....and I will ensure that someone from your region contacts you directly!
Best regards, Jim Colt Hypertherm