Miller Electric MC-80M owner manual Hitting Torch on a Hard Surface to

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CAUTION

T IP AND EL ECT RO DE WEAR BEYO ND

HITTING TORCH ON A HARD SURFACE to

RECO MMENDED VAL UES or OPERAT IO N

remove spatter can damage torch.

WITHOUT TIP OR ELECTRODE can damage

•

Do not clean torch by hitting it against a hard surface.

torch.

•

Hitting hard surfaces can damage torch parts and stop proper

•

Inspect cup, tip, and electrode before cutting or whenever cutting

 

operation.

•

speed has been significantly reduced (see Section 5-2).

 

 

HAVING PIL O T ARC TURN ON AND OF F

Do not operate torch without a tip or electrode in place.

 

 

REPEATEDLY, such as during the cutting of chain

 

 

INCORRECT PIERCING can damage torch.

fence, will shorten tip, electrode, and torch life.

•

When piercing (starting a cut away from metal edge) use a slight

•

Put a continuous piece of sheet metal under the fence to prevent

 

standoff distance and hold torch at about 10° angle to prevent

•

pilot arc from cycling on and off.

 

sparks from reflecting back at torch.

Avoid constant starting and restarting of the arc.

INCORRECT STANDOFF DISTANCE can damage torch.

•For cutting, always use approximately 1/8 in (3 mm) standoff distance between torch tip and workpiece.

Install &

Put On Personal

Check Torch

Check Gas/Air

Set

Turn On

Connect

Safety

Tip, Electrode,

Pressure

Controls

Cutter

Equipment

Equipment

And Shield Cup

 

 

 

 

Begin

 

 

 

 

 

Cutting

 

 

 

 

EXAMPLE Of Cutting Operation

 

If cutting arc is not started within 5 seconds of pilot arc, pilot

 

 

arc will go out. There is a 20-second reset time before the pilot

 

 

arc can be restarted.

 

 

 

 

 

 

 

 

 

 

Install standoff guide, place

Press trigger. After 2 seconds

After cutting arc starts, slowly

guide onto metal so that torch

of preflow, pilot arc starts.

start moving torch across metal.

tip lines up with edge of metal

 

 

and standoff distance is

 

 

approx. 1/8 in.

 

 

Adjust torch speed so

Pause briefly at end of

sparks go thru metal and

cut before releasing trigger.

out bottom of cut.

 

Postflow continues for approx. 20 to 30 seconds after releasing trigger; cutting arc can be instantly restarted during postflow by pressing trigger.

ST-800 967-A

OM-1592 Page 6

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Contents OWNER’S Manual From Miller to You Plasma ARC Cutting Safety Precautions Fumes and Gases can be hazardous to your health Plasma ARC can cause injuryFlying Sparks and HOT Metal can cause injury Cylinders can explode if damagedTable of Contents EMF InformationPage Safety Information SpecificationsCutting Torch Duty Cycle Definition 100% Duty Cycle At 80 AmperesInstallation Installing Hand-Held TorchElectric Shock can kill HOT Parts can cause severe burns Moving Parts can cause injuryInstalling Machine-Held Torch And Remote Trigger Pendant Operating the Torch Electric Shock can kill Cutting can cause fire or explosionFumes and Gases can be hazardous To your healthHitting Torch on a Hard Surface to TorchREPEATEDLY, such as during the cutting of chain Incorrect Standoff Distance can damage torchSequence Of Plasma Arc Gouging PAG Maintenance & Troubleshooting Routine MaintenanceMonths Each UseChecking/Replacing Cup, Tip, And Electrode Overtightening will strip threadsReco Mmended VAL UES or Operat IO N Troubleshooting Cutting TroubleParts List GougingTorch, MC-80 Machine Service SupportOwner’s Record Miller Electric Mfg. Co

MC-80M, MC-80 specifications

The Miller Electric MC-80 and MC-80M are advanced multi-process welding machines designed for versatility and efficiency in various welding applications. Recognized for their robust performance and state-of-the-art technology, these machines cater to the demands of professional welders across multiple industries, including fabrication, construction, and maintenance.

One of the standout features of the MC-80 and MC-80M is their ability to perform several welding processes, including MIG, TIG, Stick, and Flux-Cored welding. This multi-process capability allows users to tackle a wide range of welding tasks without needing multiple machines, which saves both time and money. The machine's adaptable nature makes it suitable for welding various materials, including mild steel, stainless steel, and aluminum.

The MC-80 series incorporates Miller's innovative Auto-Set technology. This feature automatically adjusts the machine's settings based on the user's selected material type and thickness, optimizing welding parameters for a perfect weld every time. This user-friendly technology significantly reduces the learning curve for less experienced welders while enhancing overall efficiency for seasoned professionals.

Power and performance are also key characteristics of the MC-80 and MC-80M. The machines are equipped with a powerful inverter design that provides clean, stable, and efficient arc characteristics. This inverter technology not only ensures consistent performance but also leads to energy efficiency, making these models environmentally friendly and cost-effective in the long run.

Portability is another essential aspect of the MC-80 series. Weighing considerably less than traditional transformer-based machines, these units are designed for easy transport. With the addition of an integrated handle and a lightweight design, welders can easily move the MC-80 or MC-80M around job sites, increasing productivity.

Furthermore, the versatile design of the MC-80M model includes a more advanced feature set, such as enhanced digital displays that offer real-time monitoring of welding parameters. This allows for improved control and precision during the welding process. Additionally, both models feature durable construction, ensuring reliable operation in demanding environments.

In summary, the Miller Electric MC-80 and MC-80M welding machines stand out due to their multi-process capabilities, innovative technology, energy efficiency, portability, and rugged design. These features make them ideal choices for both beginner and experienced welders looking to achieve high-quality results in a variety of welding applications.
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