A generator is essential for welders to be able to rely on while they are working. A reliable machine that can deliver the power we require.

Imagine a situation where your generator is unable to handle heavy work but it keeps turning off or overloading every time you try increasing the power. 

Overloading is a problem that many generators have to deal with.

The Miller bobcat 250 is a reliable one, as it can take a lot of loads. Many consider it the best welding machine on the market. 

This miller bobcat 250 engine-driven welder review will give you all the information you need to make an informed decision.

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Miller Bobcat 250

Miller Bobcat 250 Price

CAD $8,814

Miller Bobcat 250 Weight

miller bobcat 250 weight is 501 lbs (227 kg)

Things To Consider Before Buying A Welding Generator

It’s your responsibility as a user to ensure that you get the best possible efficiency.

These are the things you should look out for before buying a welding generator.

It’s our responsibility to inform you about these pointers, so you can choose the right welding machine for you without reading a lot of reviews.

Let’s now point them out.

Who Is It For?

This is a professional tool that professional welders can use.

However, some non-professionals might purchase the product to use it as a generator at home. It’s not the best generator you could use to power your home appliances.

According to our moderation, it is only for professionals.

Fuel Capacity

Professional welding machines require a large fuel tank because they can run for long periods of time. 

Professional welders will work on large construction sites, so the machine will be used as much as possible.

You need to take into account the fuel type and the fuel capacity.

Welding generators work on gasoline and diesel. Diesel generators have been shown to last longer, but gasoline generators are more reliable and efficient.

You have to give up some life expectancy if you want to achieve efficiency. You must also sacrifice efficiency if you want to live a longer life.

Requirement Of Power

Different welding generators may have different power capacities. Some are designed for small jobs. Some are for heavy work.

Professional welders should be aware that you might have to do all kinds of work.

It’s safe to invest in a welding generator capable of handling heavy construction work.

Because it is powerful, it can do heavy and light work.


Manufacturer warranties should not exceed one year. Miller, for example, offers a minimum of three years warranty to ensure that there is no issue with the build.

Most electronic devices do not have the same build quality. Because they are electronic devices, there might be electrical defects in their build. The warranty is intended to protect you.


A welding machine should be easy to move. There are two types depending on mobility.

You don’t necessarily need a mobile device to work remotely from your shop or home.

You will need to transport the machine, particularly to construction sites. A small, powerful, portable device is necessary that can do the heavy lifting.

Presenting The Miller Bobcat 250

What more can you ask from Miller? Many users and reviewers consider the miller bobcat 250 to be the best welding generator on the market.

We have seen many international construction sites with at least one of these devices operating at the most critical welding points.

Performance Level

Because it is capable of handling the most difficult jobs with maximum efficiency, the bobcat 250 has been voted one of the top bobcats.

A welding generator’s performance is determined by the job it can perform and how long it has been in use. During its testing, the bobcat 250 was subject to many difficult jobs. 

Who Needs To Buy This Device

This occupation is not for everyone. A bobcat 250 is only for those who make this their primary profession.

This is why professionals shouldn’t buy it. You can also grab it if you feel you require maximum performance for even the smallest jobs.

Miller Bobcat 250 Specs

Welding process Stick (SMAW), MIG (GMAW), Flux-cored (FCAW), and DC TIG (GTAW)
Weldable materials Steel, stainless steel, and aluminum
Welding amperage range 40 – 250 amps
Rated output 250 amps at 25 volts, 100% duty cycle
Engine Kohler or Subaru gasoline engine (depending on the model)
Fuel type Gasoline
Fuel capacity 12 gallons (45.4 liters)
Engine horsepower 23 HP at 3,600 RPM
Generator power output 11,000 watts peak, 9,500 watts continuous
Dimensions 28.5″ (H) x 20″ (W) x 40.5″ (D)
Weight 501 lbs (227 kg)

Miller Bobcat 250 Review


  • Multitasking
  • Both AC and DC capability
  • Constant voltage and constant current
  • Heavy-duty tasks
  • Easy maintenance
  • Reverse airflow
  • Noise-free
  • Accu-rated power
  • Digital meter and easy control panel
  • 3 years of warranty
  • Various models
  • Fuel efficiency
  • Great power deliverance


  • A bit heavier than average gasoline generators

Miller Bobcat 250 Review

The Miller Bobcat 250 is a popular engine-driven welder that is well-known for its reliability, durability, and performance. It is a great choice for various applications, including welding, plasma cutting, and powering tools. The Bobcat 250 is powered by a 25-horsepower Kohler engine and is rated for 225 amps AC and 250 amps DC.

Additionally, it has a 12,000-watt generator, making it a versatile machine for a range of tasks. One of the most significant advantages of the Bobcat 250 is its ease of use and maintenance. It comes with a user-friendly control panel, and all service points are easily accessible.

For more details check out the YouTube video

Used Miller Bobcat 250

A “Miller Bobcat 250” is a type of welding machine that is commonly used for various welding applications. It is manufactured by Miller Electric, a well-known company that specializes in welding equipment.

A used Miller Bobcat 250 refers to a previously owned or second-hand welding machine of this model. It may be available for purchase from a private seller or a welding equipment dealer. When considering purchasing a used Miller Bobcat 250, it’s important to carefully evaluate its condition, including checking for any signs of wear and tear, verifying its functionality, and confirming that it meets your specific welding needs.

Some factors to consider when buying a used Miller Bobcat 250 include its age, hours of usage, maintenance history, and any modifications or upgrades that may have been made.

Before making a purchase, it’s recommended to test the used Miller Bobcat 250 if possible or request a demonstration to ensure that it is in good working condition. Additionally, consider the reputation of the seller and their return policy, if applicable.

By carefully evaluating the condition and functionality of a used Miller Bobcat 250, you can make an informed decision and potentially save money compared to buying a new welding machine.

Wrapping Up

Every welder has to deal with the problem of doing different jobs and keeping their machine cool.

The miller bobcat 250 gives you control over both.

We have found out from the miller Bobcat 250 review that it can do 7 types and 7 types of welding work that would require 7 machines.

It also features reverse generator airflow technology, which allows you to keep your device cool while keeping it quiet.

There you have it. Buy the best when you spend money on something.

Miller Bobcat 250 FAQ

How many hours will a Miller Bobcat 250 last?

In a constant load of 4000 Watts of generator power, the Bobcat could operate for around fourteen hours (gas) in operation.

Is the Miller Bobcat 250 gas or diesel?

Miller Bobcat 250 is a diesel

How much does a Miller Bobcat 250 weigh?

Miller Bobcat 250 weight is 560 lb (254 kg)

What engine is in a Miller Bobcat 250?

Miller Bobcat 250 has a Kohler CH730

Is Miller Bobcat 250 AC or DC?

This generator for welding has the ability to work with both power sources that can be used for DC or AC weld outputs, ensuring top-quality welds on all types of metals. DC is smooth and simple to use and smooth, while AC Stick is there for the event that an Arc blow happens.

How much oil does a Miller Bobcat 250 take?

If you need to change the oil in your motor, fill the right amount: don’t over or underfill. For instance, the Kohler Command motor found on the Miller Legend, Bobcat, and Trailblazer generators for welders needs 1.6 quarters of motor oil, if fully drained, and 10.71 Fl. Oz. to change between “L” to “F” on the dipstick

Does a Miller Bobcat 250 have an alternator?

The bobcat is an arc alternator that is single-phase. Generators feature three phases of arcs. They are the Miller Trailblazer 302 and 275 both have three-phase alternators

How many decibels is a Miller Bobcat 250?

Perhaps you can also request the quietest model within the specified price/output range. I checked the sites on the internet and Miller says 73.5 decibels in the 225 as well as 72.5 in 250 Bobcats. Lincoln 10,000 Plus has 100.7 Db when rated output is used.