HF titanium 45 with x45 machine torch problems

Just purchased the razor weld x45 machine torch for my HF machine and now I’m getting the error code F03 stating the shield cup is loose or there’s something missing. I’ve triple checked the tip to the best of my knowledge and can’t find acting wrong. Has anyone else installed this torch on their HF machine with success?

I’m sure @mechanic416 can answer for sure, but I don’t think the Razorweld machine uses a parts in place switch. If that’s the case, the torch probably doesn’t have the switch that the machine is looking for to tell it that the cap is installed.

It can be made to work by installing the pins for the switch and joining them with a wire to bypass the parts in place safety.

I like where your head’s at! Hopefully he can chime in with a definite and then I’ll proceed that direction. Thank you for the response!

As @ds690 has said the torch is not wired correctly. Contact the seller they should be able to help you with this.

Thank you guys for the previous info. it got me googling and i went down a rabbit hole.
i originally bought a harbor freight titanium 45 torch and it has worked really well. i noticed the weight of the torch cable hanging off the end of the handle would affect the final product so i wanted to upgrade to a machine torch. i did minimal googling and found the Razorweld X45 Machine Torch would mount up and i was lead to believe would work. (purchased from langmuir) it didn’t…
this is when i asked my first question about the error “F03” on my HF machine. (shield cup loose or missing)
i have learned the machine torch came with only two pins on the machine side connector, these pins are for the pilot arc. (they were inserted in pin location #1 & #9)
i learned the HF needed the pins in the #5 & #6 location so i moved the pins over.
Retried using the torch and i had the same problem so i dug deeper. took apart the machine torch and found it had wires for the “part in place” safety but they weren’t installed on either end of the torch. i jumped on Ebay and found the pins i would need, soldered everything together and reassembled. (new pins were installed into #8 & #9)
IT WORKED! no more F03 trouble code!
Until…
i loaded a program into it and hit the cut button. i heard the HF machine ramp up like it was going to start cutting, fan got louder… but nothing ever happened on the end of the torch. firecontrol then showed an error saying the torch didn’t fire and at this point i noticed there was a new error on the HF machine “F06” which states “electrode and nozzle stuck together”. I’ve spent the better part of 3 hours going through the torch tip, re-checking wires and ohms on each wire and I’m hoping someone will chime in with a good idea like last time. any pointers i can get I’ll be absolutely grateful. maybe even a quick idea of what each wire does and how my HF is getting this the info that the electrode and nozzle are stuck together.
Thank you in advance!

I’ll add photos of what I’ve done up to this point in case anyone else can use the info I’ve found out so far.


pins 5 and 6 are pilot arc, the 2 red wires. I am guessing you just made a jumper from pins 8 and 9 for the parts in place/safety. That is all that is needed for the torch to work as long as you have the plasma cutter wired correct for the trigger to the control box. Air pressure need to be set to 70psi for the machine torch to fire correctly.

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Once again you’ve helped me figure it out!
Turns out there’s an internal regulator that wasn’t set high enough for the torch I had installed.
Turned the regulator up a couple turns and she’s working.
So now I’m going to put it back to how it was to figure out how many PSI the factory settings are so when I use the handheld torch I’m not using too much air and then I’m going to add another regulator for my machine torch.
Thank you guys again for helping me.

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The hand torch will work fine at 70psi. A machine torch needs about 5 to 8psi more then a hand torch to fire because of the way it is made. Also the X45 machine torch has a 8mm air line the hand torch has a 6mm air line. Bigger air lines need more pressure as they have more volume/air to push.

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