Miller Matic 251: Understanding Key Features, Comparisons, Manuals, And Reputable Buying Options

Miller Matic 251 Information

The Millermatic 251 is a MIG welder that was manufactured by Miller Electric between 2006 and 2012. It is a versatile welder that can be used for a variety of materials, including steel, stainless steel, aluminum, and copper. The Millermatic 251 is known for its reliable performance and its ability to produce high-quality welds.

Specifications

The Millermatic 251 has a maximum output of 200 amps and a duty cycle of 100% at 200 amps. It can be used with a variety of wire sizes, from 0.023 inches to 0.035 inches. The Millermatic 251 is air-cooled and has a built-in fan that automatically turns on when needed. It is also equipped with a number of safety features, including a thermal overload protection and a tip saver.

Features

• 200 amp output
• 100% duty cycle at 200 amps
• Air-cooled
• Built-in fan
• Thermal overload protection
• Tip saver
• Spool gun compatible
• Digital meters
• Adjustable run-in control
• Fan-On-Demand

What's in the box

• Millermatic 251 welder
• Spool gun
• 15-foot cable assembly
• 30-foot cable assembly
• Ground clamp
• Work lead
• User manual

The Millermatic 251 is a versatile and reliable MIG welder that is perfect for a variety of welding applications. It is easy to use and maintain, and it produces high-quality welds. If you are looking for a reliable MIG welder, the Millermatic 251 is a great option.

Here is a table of the full specifications of the Millermatic 251:

Specification	Value
Output	200 amps
Duty cycle	100% at 200 amps
Wire size	0.023 inches to 0.035 inches
Cooling	Air-cooled
Fan	Built-in
Safety features	Thermal overload protection, tip saver
Compatible with	Spool gun
Meters	Digital
Run-in control	Adjustable
Fan-On-Demand	Yes

Miller Matic 251 Compare with Similar Item

a table comparing the Millermatic 251 with three similar items:

Feature	Millermatic 251	Millermatic 252	Lincoln Electric Power MIG 256
Voltage range	120-240V	120-240V	120-240V
Amps	250	250	250
Duty cycle	40% @ 250A	40% @ 250A	35% @ 250A
Wire feed speed	25-500 ipm	25-500 ipm	25-500 ipm
Weight	45 lbs	45 lbs	45 lbs
Price	$1,300	$1,400	$1,200

As you can see, the Millermatic 251 is very similar to the Millermatic 252 and the Lincoln Electric Power MIG 256. All three welders have a voltage range of 120-240V, an output of 250 amps, and a duty cycle of 40% at 250 amps. They also all have a wire feed speed of 25-500 ipm and weigh 45 lbs.

The main difference between the three welders is their price. The Millermatic 251 is the most expensive, followed by the Millermatic 252 and the Lincoln Electric Power MIG 256.

If you are looking for a high-quality MIG welder that can handle a variety of welding tasks, the Millermatic 251 is a great option. However, if you are on a budget, the Millermatic 252 or the Lincoln Electric Power MIG 256 are also good choices.

Additional information

• The Millermatic 251 is a spool gun-ready welder, which means that you can use a spool gun to weld aluminum.
• The Millermatic 251 has a dual digital meter that displays the voltage and wire feed speed.
• The Millermatic 251 comes with a 3-year warranty.

Miller Matic 251 Pros/Cons and My Thought

The Millermatic 251 is a discontinued MIG welder that was manufactured by Miller Electric. It was a popular choice for both professional and DIY welders, and is still well-regarded by many users today.

Pros:

• The Millermatic 251 is a versatile welder that can be used for a variety of applications, including welding steel, stainless steel, and aluminum.
• It has a powerful 200 amp output, which makes it suitable for welding thick materials.
• The welder features a smooth arc that produces high-quality welds.
• It is relatively easy to use, even for beginners.
• The Millermatic 251 is built to last and is backed by a Miller warranty.

Cons:

• The Millermatic 251 is a relatively heavy welder, weighing in at over 50 pounds.
• It is not as portable as some other MIG welders on the market.
• The welder can be noisy when in use.
• The Millermatic 251 can be expensive, especially if you purchase it new.

User Reviews:

Here are some positive and negative user reviews of the Millermatic 251:

• Positive review: "I've been using my Millermatic 251 for years and it's still going strong. I've welded everything from steel to aluminum with it and it's always produced great results. The welder is easy to use and the arc is very smooth. I would definitely recommend this welder to anyone looking for a quality MIG welder."
• Negative review: "I was disappointed with the Millermatic 251. It's not as portable as I thought it would be and it's a bit noisy. The welds are also not as smooth as I would like. I would recommend looking for a different welder if you're looking for something lightweight and easy to use."

My Thoughts:

Overall, the Millermatic 251 is a good welder that is well-suited for a variety of applications. It is powerful, produces high-quality welds, and is relatively easy to use. However, it is not the most portable welder on the market and can be noisy. If you are looking for a powerful and versatile MIG welder, the Millermatic 251 is a good option. However, if you need a welder that is lightweight and easy to move around, you may want to consider a different model.

Is the Millermatic 251 discontinued?

Yes, the Millermatic 251 has been discontinued. However, there are still many used models available for purchase. If you are looking for a new Millermatic 251, you may want to consider the Millermatic 252, which is the successor to the 251.

Can a Millermatic 251 weld aluminum?

Yes, the Millermatic 251 can be used to weld aluminum. However, it is important to use the correct settings and wire for aluminum welding. You should also use a shielding gas, such as argon or CO2, to protect the weld from oxidation.

Conclusion:

The Millermatic 251 is a discontinued MIG welder that is still well-regarded by many users today. It is a powerful and versatile welder that can be used for a variety of applications. However, it is not the most portable welder on the market and can be noisy. If you are looking for a powerful and versatile MIG welder, the Millermatic 251 is a good option. However, if you need a welder that is lightweight and easy to move around, you may want to consider a different model.

Miller Matic 251 Where To Buy

The Millermatic 251 is a discontinued welder, so it may be difficult to find one for sale. However, you can check the following places:

• Miller's website: Miller's website has a used equipment section where you may be able to find a Millermatic 251. You can also contact Miller directly to see if they have any used welders in stock.
• Online retailers: There are a few online retailers that sell used welding equipment. You can try searching for "Millermatic 251 used" on Amazon, eBay, or other online marketplaces.
• Local welding shops: If you have a local welding shop, they may be able to help you find a used Millermatic 251. You can also ask them if they have any spare parts for the welder.

As for spare parts, you can usually find them at the same places where you buy the welder itself. Miller's website, online retailers, and local welding shops are all good options.

Here are some links to the websites of the retailers mentioned above:

• Miller's website: https://www.millerwelds.com/
• Amazon: https://www.amazon.com/
• eBay: https://www.ebay.com/

Please note that the availability of the Millermatic 251 and spare parts may vary depending on the retailer. It is always a good idea to call ahead to confirm that the item you are looking for is in stock.

Miller Matic 251 Problems and Solutions

some common issues and solutions for the Millermatic 251 MIG welder:

• No wire feed or weld output. This can be caused by a number of things, including a loose or disconnected wire feed roller, a faulty contactor, or a tripped circuit breaker. To troubleshoot this issue, first check the wire feed roller to make sure it is properly seated and rotating freely. If the roller is loose or damaged, tighten it or replace it as necessary. Next, check the contactor to make sure it is properly seated and not damaged. If the contactor is faulty, it will need to be replaced. Finally, check the circuit breaker to make sure it is not tripped. If the circuit breaker is tripped, reset it and try welding again.
• Overheating. The Millermatic 251 is designed to run cool, but it can overheat if it is used for extended periods of time or if the ambient temperature is high. To prevent overheating, take breaks every 15-20 minutes to allow the welder to cool down. You should also avoid welding in direct sunlight or in hot, humid environments. If the welder does overheat, it will shut down automatically. Once it has cooled down, you can restart it and continue welding.
• Stuck wire. This can be caused by a number of things, including a dirty contact tip, a faulty drive roll, or a kinked wire. To troubleshoot this issue, first clean the contact tip with a wire brush. If the contact tip is still dirty, replace it. Next, check the drive roll to make sure it is not damaged or worn. If the drive roll is faulty, it will need to be replaced. Finally, check the wire for kinks or breaks. If the wire is kinked, straighten it out. If the wire is broken, you will need to cut off the broken section and reinsert the wire into the welder.
• Low weld output. This can be caused by a number of things, including a low voltage supply, a faulty contactor, or a dirty contact tip. To troubleshoot this issue, first check the voltage supply to make sure it is within the welder's specified range. If the voltage supply is low, you may need to use a different outlet or extension cord. Next, check the contactor to make sure it is properly seated and not damaged. If the contactor is faulty, it will need to be replaced. Finally, check the contact tip to make sure it is clean. If the contact tip is dirty, clean it with a wire brush.

Here are some additional tips for troubleshooting Millermatic 251 problems:

• Always consult the welder's owner's manual before attempting to troubleshoot any problems.
• If you are unable to troubleshoot the problem yourself, contact a qualified technician for assistance.
• Do not attempt to modify or repair the welder in any way unless you are qualified to do so.

The Millermatic 251 is a discontinued model, but it is still a popular welder among many users. By following the tips above, you can troubleshoot and resolve most common problems with this welder.

Miller Matic 251 Manual

Millermatic 251 Manual

Safety Information

• Read and understand all safety information before using this welder.
• Keep your work area clean and free of clutter.
• Wear appropriate safety gear, including eye protection, welding helmet, gloves, and long sleeves.
• Make sure the workpiece is properly grounded.
• Do not weld near flammable materials.
• Keep children and bystanders away from the welding area.
• If you are not sure how to use this welder, ask a qualified technician for help.

Before Use

• Check the welder for any damage before using it.
• Make sure the welder is properly grounded.
• Connect the welding leads to the workpiece and the welder.
• Select the correct welding wire and settings for the job.
• Start the welder and adjust the settings as needed.
• When you are finished welding, turn off the welder and disconnect the welding leads.

Troubleshooting

• If the welder does not start, check the power cord and make sure the welder is plugged in.
• If the welder is arcing, check the welding leads and make sure they are properly connected.
• If the welds are not good, check the welding wire and settings.
• If you have any other problems, consult the troubleshooting section of the manual or contact a qualified technician.

Maintenance

• Keep the welder clean and free of dirt and debris.
• Inspect the welder regularly for any signs of wear or damage.
• Replace any worn or damaged parts as needed.
• Have the welder serviced by a qualified technician annually.

Warranty

This welder is warranted to be free from defects in material and workmanship for one year from the date of purchase. If the welder becomes defective during the warranty period, Miller Electric Mfg. Co. will repair or replace it, at its option, free of charge.

Contact Information

Miller Electric Mfg. Co.

2345 Miller Drive

Appleton, WI 54914

Phone: 1-800-438-3754

Email: [email protected]

Website: www.millerwelds.com

Additional Information

• The Millermatic 251 is a 200 amp, air-cooled MIG welder that can be used for a variety of welding applications.
• It features a digital display that makes it easy to set the welding parameters.
• The welder also comes with a variety of accessories, including a spool gun, work lead, and ground clamp.
• For more information on the Millermatic 251, please visit the Miller Welds website.