Question about Hobart Airforce 250ci Plasma Cutter 12 Amps

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My hobart plasma cutter will arc but will not cut funny noise

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Posted on Jan 02, 2017

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SOURCE: need schematic for hobart airforce 250ci plasma

Found out the model was still under warranty.

Posted on Jan 29, 2010

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SOURCE: hobart 400 plasma cutter. when

Make sure you have a good ground. If ground is good, make sure you are holding the tip level to the work and right up close.

Posted on Sep 01, 2011

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1 Answer

Will not arc


Sounds like the voltage is not going to the tip. I would suggest taking this in for repair.

Dec 07, 2013 | Hobart Airforce 250ci Plasma Cutter 12...

1 Answer

Machine turns on, air compressor runs but will not strike an arc


sounds like the voltage is not getting to the tip. I would suggest taking this in for repair.

Dec 07, 2013 | Hobart Airforce 250ci Plasma Cutter 12...

1 Answer

Pilot arc is highely spreaded


change the cutting nozzle

Mar 23, 2012 | Hobart Welding Tools

1 Answer

Would you purchase the 400 hobart or go to 500 hobart plasma they seem to cut the same thickness on the metal chart..


It's all about duration. How much metal do you need to cut continuously. Although the 400 will cut a similar spec it won't hold out as long. So if it;s lots of short cuts the 400 is fine, if you need to cut thicker gauge for longer period go 500.

Aug 16, 2011 | Airforce HOBART AIRFORCE 400 PLASMA CUTTER...

1 Answer

Only cuts for 3 seconds, device still on


Possibly an internal short in the torch tip... the expendable components failing in the tip will cause the sensors in the machine to register a "no cut" or "free air arc" state and kill the power to the tip to prevent damage to the unit. Replace the tip components and double check the grounds connections.

Apr 03, 2010 | Hobart Airforce 250ci Light Weight Plasma...

2 Answers

Troubleshooting help


Hi,


I would recommend replacing the electrode, and maybe the tip, other that that it sounds like you aren't getting a good enough ground for it to start.

Aug 23, 2009 | Hobart 500474 Airforce 400 Plasma Cutter

1 Answer

Hobart 250 a keeps cutting off the flame


If you have a bad air supply then the moisture in the air will cause the torch to cut off and the cut quality depends also on air supply,speed,metal thickness and condition of your consumables,meaning your electrode and other related parts in the torch tip.Hope this helps

Jan 05, 2009 | Miller Hobart AirForce 250A Plasma Cutter ...

2 Answers

Plasma cutters Question


There are a few things about plasma cutting safety that are different from general welding safety tips This short list of plasma cutter safety tips is geared toward light duty plasma cutting using compressed air not large industrial units that use gas mixtures and water cutting tables. Electric Shock Can Kill - Operating a plasma cutter completes an electric circuit between the torch and the workpiece. The workpiece and anything touching the workpiece are part of the electrical circuit. - Never touch the torch body, workpiece or the water in a water table when the plasma system is operating. Voltages & Currents - Plasma cutter output voltages are much greater than welding voltages, usually 100-200 volts. Precautionary Measures - Do not pick up the workpiece, including the waste cutoff, while you cut. Leave the workpiece in place on the workbench with the work cable attached during the cutting process. - During plasma cutting operations do not move the work clamp. Wear insulated gloves and boots, and keep your body and clothing dry. - Do not stand, sit or lie on or otherwise touch any wet surface when using the plasma cutter system. - Insulate yourself from work and ground using dry insulating mats or covers big enough to prevent any physical contact with the work or ground. If you must work in or near a damp area, use extreme caution. Work Cable - Ensure metal-to-metal contact between work cable and workpiece or work table. - Work cable clamp should make contact with clean metal free of rust, dirt, painted surfaces, etc. - Do not attach work cable to the piece that will fall away when the cut is complete Plasma cutter Arc Rays Plasma cutter arc rays produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Protective Clothing - Guantlet gloves, safety shoes and hat. - Flame-retardant clothing to cover all exposed areas. - Cuffless trousers to prevent entry of sparks and slag. - Remove combustibles, such as a butane lighter or matches, from your pockets before cutting. Noise Levels of Plasma Arc Cutting - Plasma arc cutting systems can generate noise levels in excess of 120 dB during high-amperage cutting operations. - Ear protection should be used when operating or working near plasma arc cutting operations. Toxic Fumes & Gases Plasma arc cutting can produce toxic fumes and gases that deplete oxygen and cause serious injury. - Keep the cutting area well ventilated or use an approved air-supplied respirator. - Do not cut in locations near degreasing, cleaning or spraying operations. The vapors from certain chlorinated solvents decompose to form phosgene gas when exposed to ultraviolet radiation. Pacemakers & Hearing Aids - Pacemaker and hearing aid operation can be affected by magnetic fields from high currents. Pacemaker and hearing aid wearers should consult a doctor before going near any plasma arc cutting and gouging operations Overall Plasma Safety - The plasma arc cutting process can be very safe. - By paying attention to safety standards and correctly setting up and operating the system, plasma arc cutting poses no more a threat than most welding processes.

Aug 27, 2008 | Miller Spectrum 375 Cutmate Plasma Cutter...

1 Answer

Plasma cutters problem


Depending upon the design of the torch (e.g., orifice diameter), electrode design, gas type and velocities, and the current levels, several variations of the plasma process are achievable, including: * Plasma Arc Welding (PAW) * Plasma Arc Cutting (PAC) * Plasma Arc Gouging * Plasma Arc Surfacing * Plasma Arc Spraying

Aug 27, 2008 | Miller 903777012 SPECTRUM 2050 PLASMA...

1 Answer

Plasma cutters support


Plasma Arc cutting is an excellent choice for most cutting applications but it is particularly well suited for applications where speed and excellent cut quality are important. Because of the intense heat of the plasma arc – around 40,000° F compared to 5,700° F, with gases used with Oxy-Fuel torches – the cut is clean with little or no dross.

Aug 27, 2008 | Miller Spectrum 1000 Plasma Cutter...

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