The Juki MO644D Portable Serger is a high-quality machine that is bursting with features to help you complete even the most insanely demanding projects at home, sound like a dream? Well, that is no longer the case with the Juki MO644D Portable Serger. With a great price and even better functionality, this machine is perfect for all your light weight sewing needs and is sure to be a machine you’ll be proud of, no matter what your sewing skill level.

Although Juki is perhaps better known today for industrial machines as opposed to home sewing machines, the company’s foundation was built on home appliances. However, the Juki MO644D manages to mix the best of both worlds: a portable home serger with an industrial flavor. The company began in 1938 and began manufacturing sewing machines for the home market in 1945. Eight years later, it expanded into the industrial sewing machine market. Today, their machines are known for their durability, ease of use and industrial sensitivity.


As you have probably already discovered, the Juki MO644D is a portable home serger. It weighs 18.4 pounds and sews with two needles and two, three, and four threads. Pretty standard, true, but there are a few places where this model exceeds expectations. Sergers are generally fast. This is because they are made for sewing straight seams and little else. Slower models can give you slightly more than 1000 stitches per minute, although the average is around 1300. However, the Juki MO644D has a maximum sewing speed of 1500 stitches per minute, which is great for sewing one seam at a time.



The presser foot holds the fabric on the feeders during sewing. On most machines, the presser foot applies standard pressure to the fabric. You can also raise the presser foot only so high. But with the Juki MO-644D, you can adjust the presser foot pressure and raise the presser foot extra high to accommodate thicker and layered fabrics. The tension knobs that give Juki machines their distinctive look work the same way as other tension machines: with discs. But the Juki buttons work more like the tension button on many sewing machines, and some users may find that eases the learning curve.


Juki MO644D Portable Serger sews with two needles and two to eight threads, depending on your model. The most commonly used over lock stitches require three- and four-thread stitches, and almost all home sergers provide them. However, if you want to make a delicate decorative hem, especially on ultra-light fabrics, you will need to sew with two threads. Some models, especially at this price point, only offer three and four thread sewing, but the Juki MO-644D has two, three and four thread options.

This is another feature that sets the Juki MO-644D apart from the competition. The average sewing speed is 1300 stitches per minute. Some models don’t even meet it. However, the Juki MO-644D sews at a speed of 1500 stitches per minute, which will make your seams work quickly.

A rolled hem is an elegant way to finish the edge of a fabric. You can often find it on scarves and other lightweight items. Creating a rolled hem requires two things: removing or turning off the cutting edge and moving the stitch finger. With some serger models, you will need to do this by hand, often with a screwdriver or hex key. But machines like the Juki MO-664D, which have a built-in roll hem, can make these adjustments with just the flick of a switch. It is very comfortable.

It’s complicated, it has to be done in a certain order, and it can come back at the worst possible time. The bottom loop thread in particular can be difficult as the thread guides are sometimes difficult to access. The Juki MO-644D has a lower looper switch that moves the lower looper to a position where it is easy to thread. And that is a blessing.

Some sergers use special serger needles. However, other models, such as the Juki MO-664D, use standard sewing machine needles. This can save you frustration and a trip to the sewing store if you break a needle in the middle of a project.


You might think that an industrial-influenced machine like the Juki MO644D Portable Serger would intimidate serger novices, but that couldn’t be further from the truth. It’s true that a serger is a complex, specialized piece of equipment, but there’s no reason why someone with the ambition to learn can’t learn on this model. And it even has some useful features that we will discuss later.

In addition to its simple design, the Juki MO-644D is also lightweight and portable enough to handle hours. Experienced serger users will also appreciate the higher speed of this model and other professional options.

The cut width and stitch length controls are awkwardly located inside the left cover on the base of the machine. The machine is also designed for light and medium fabrics only. So if you’re hoping to handle heavy duty work, this lightweight machine may not be the best choice.

Still, there are some great deals on this machine right now. It was first released in 2008, and although it is not obsolete, newer and more expensive models are available. So, depending on your dealer, you can choose this one for the price of a lower sewing machine. And that’s saying something because Juki doesn’t make cheap gear.


The main reason for buying a Juki MO644D Portable Serger is that you intend to take it somewhere. For this, you want something that’s small, lightweight, and hopefully comes with some sort of protective case. Solid construction is a must. Even if your machine never leaves the sewing room, these are all features that will serve you well.

In general, a serger is smaller than a regular sewing machine. It goes up to the neck. Common sewing involves different fabrics of different sizes and shapes. You can sew the edges together to create a seam. You can also do decorative stitching in the middle of a piece of fabric. Quilting and embroidery, in particular, require a lot of space to the right of the needle.

The serger stitches the edges and nothing else. Creates strong, stretchy gathered seams when trimming seam edges. Alternatively, a serger can do decorative stitching, but only on the edges. So you don’t need much space to the right of the rightmost needle. When it comes to weight, however, it can vary considerably from model to model. Some sergers are as heavy as some sewing machines – around 20 pounds. A few very thin models can weigh as little as 8-10 pounds, although this is far from the norm.

If you’re looking for a portable one, grip is also important. Many sergers have them, but they vary. Some are quite robust (like the built-in Juki MO-664D handle), while others may seem like an afterthought. Every time you move the machine, you run the risk of it falling, bumping or getting scratched. Features like a durable frame and rugged case can help protect the portable machine during shipping and storage.

Many cabinets have sturdy internal metal frames. However, carrying cases are few and far between, although they can be purchased separately. Things like buttons, thread separators that don’t tighten, and other elements that stick out can catch or break during shipping, resulting in costly repairs.


The Juki MO-644D Portable Serger comes with a 2-3-4 thread system and a wide variety of stitch options, including 3- and 4-thread bound stitch, 3-thread narrow over locks, 3-thread rolled hem, 3-thread flat lock , 2-thread tuck and 2-thread rolled hem to name a few. Smooth operation, 2/3/4 thread winder and automatic hem roll function are just some of the excellent features that this Juki MO644D portable threader is equipped with; add to that a jam-proof fabric feed process and a 30% increase in your productivity just by switching to the MO644D from any other standard light sewing machine and we have a winner. The machine also has other options such as blind stitching, hemming, cording, gusset, curved pearl foot and adding rubber.


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