Plasma Cutting Quick Tip #2 - High Frequency Start vs. Blowback Start - Which one to buy!?

This video is meant to shed a little more light on the differences between High frequency and blowback start on plasma cutter models. Two of these models from Weldpro are the CUT40NH blowback start model and the CUT40HSV High Frequency start model. It is important to know some of the pros and cons so you can make an educated decision when purchasing a plasma cutter for your home or shop. Check out our selection of plasma cutter options always at the best price here:

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[coyote_hunter]

Well, this video didn't give me any information as to which I should buy. They did cuts and said they used it on a bunch of different material but which one is best for what?

[TheBreaded]

Usually high frequency doesn't interfere with CNC electronics? That is absolutely the case for a lot of people and most plasma table builders won't support a plasma cutter that isn't a blowback start.

[jimstrongone]

quick and easy way to get knowledge out there. 👍

[abouabraheem]

Thank for explain
For beginner user best hf or not🌹

[TimmyzZs]

Ok, I was jus about to order the weld pro AC/DC tig.
And the 50a Cutter, but daymmm that’s kinda steep.


I might look at the prime weld AC/DC tig and their Cut 50 or cut 60.


I wanted my tig to match my plasma and be a loyal customer with a matching set. Hahah

[stevemilchuck]

Wow I was really happy to have this link come up but left with almost no additional information. Why would I want one more over the other. Do different metal or alloy types respond differently? Why was one technology generated over the other? Only to solve the CNC use? Is there a cost difference going with one technology over the other? In the video it says neither technology requires touching the surface, if that's the case how does the spring get depressed in the blowback to initiate arc?

[ullasesturiramesh]

have you used Low frequency plasma cutter? Any difference in quality compared to high frequency?

[TimmyzZs]

Ok I have a question?...
I have read online from Esab. They actually have a plasma cutter that has a cutting gas, along with a Shielding gas. And they have pictures of like argon shielding with compressed air cut, or HHO cutting with argon or c02 shielding.
Or a argon/helium mix.

And you get different cut finishes along with faster deeper cuts on thicker material.

I wanna know, can any plasma cutter run a dual gas plasma torch, with an auxiliary shielding line attached or custom choice of cutting and shielding gas?

[sipthewater]

What happens when someone grounds the work piece with a wire to the torch cup? They claim that you can 'mimic' the auto pilot arc start feature in machines that have that feature built into them. Will doing a pilot arc conversion hurt the plasma machine?

[abumahmud]

Hello, I have a Miller 2050 plasma. I want to change the torch to a p_80 type. Can you help me? Thank you.I bought a p-80 torch and installed it instead of the milling torch (iCE-55c) and it did not work. It did not cut or give any spark. I tried a lot but did not achieve any results.

[AnasSuhaimi]

Everyone on the internet building CNC Plasma cutter is complaining about the electrical noise HF machines generate.

[ariflangic]

Hello, I have a plasma with hf, is it possible to replace the burner with a pilot arc on my plasma, I was making a cnc machine, so the hf is causing me problems

[ulsi]

Is there a difference in cut quality between the both?

[danyblanchard]

How do I know if my pilot arc is high frequency or backfiring?

[qfdforme]

I do not see the advantage of a blowback start. Why?

[roberthosking]

If there is essentially no difference then why make two types? It is my understanding that blowback start machines produce FAR less electromagnetic interference than HF start machines and are recommended for environments where there are sensitive electronics (CNC control boards and computers for example). Please elaborate further. I'm about to replace my CNC cutter with a blowback start due to the endless challenge of trying to avoid EMI.

[siaapetualang]

Low frequency, blowback start, and Non HF ita same?

[mikeschuler]

The should just use a laser to ionize the path to the work to start the plasma arch . No interference