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JUKI MO644D Portable Serger I Trusted Reviews and Specs of 2023

If you are a beginner or professional, the JUKI MO644D portable serger fits the needs of every level. Sewing on a serger is a challenging task previously that can require proper training.

With the development of technology, new sewing machines are coming with advanced features. That’s why sewing has become much more accessible on these latest serger machines.

Do you want to polish your sewing passion? You have fantastic ideas to craft something new, but how to implement them professionally? It would help if you had a perfect tool. May a serger be able to fulfill your requirements?  Let’s check why JUKI MO644D portable serger is known as an ideal tool for high-quality sewing and serging.
Juki MO644D is one of the most successful overlock sewing machines in the name of JUKI. If you are a beginner or professional, you can efficiently operate this portable serger.

10 Important Features of JUKI MO644D Portable Serger in 2023

JUKI is a well-known name for decades in the field of sewing machines. So should the JUKI MO644D be the wisest choice for personal use or small home business? We put it to the test in this JUKI MO 644D review.

1- Superfast

This proud product of JUKI comes with a super-fast speed of 1500 stitches per minute. It’s smooth stitching with fast speed makes it a professional’s choice.

2- Adjustable presser foot

This machine provides you an adjustable presser foot. The pressure on presser feet increases when we try to sew sticky or heavy material. Turn the screw clockwise; this is for heavy waste materials such as denim tweed or stiff linen.

To decrease the pressure of the presser foot turns the screw counterclockwise for lightweight fabrics such as the georgette lawn or triple.

3- Sturdy heavy knife

This fantastic product of JUKI is coming with knife adjustment. An adjustable knob with three positions that can set according to fabric type. Before adjusting the knife position, ensure that the power button is off.

4- Lightweight

Juki MO644D is a versatile serger machine in a compact design. that’s why you can easily install it in a small space and transport it from one place to another. Its weight is only 18.4 pounds.

5- Easy stitch adjustment

Furthermore, stitch length may vary according to fabric type and thickness in this serger machine. An adjustable knob is available in this machine with a range from 1 to 4; for regular overlock stitching, set the stitch length 2 to 3.

6- Adjustable differential feed

Another excellent feature of this serger provides you a knob to adjust differential feed according to fabric type. Elastic fabrics like blends and latex are challenging to stitch in average condition. It would help if you had an adjustable differential feed to handle such kinds of materials.

7- Color-coded thread guide

An overlock sewing machine is used multi loops of thread at once. For beginners, setting up the thread is a little bit tricky, but in this machine, JUKI provides you a color-coded guide plate to easily set up the thread.

Color-coded thread guidance makes it easy to understand the thread path and adjust the stitch length and feed.

8- Easy tension adjustment

The best feature of this machine that makes it easy to use for beginners. To adjust the thread tension, bring the thread onto the thread guide and dial to lay the line correctly between the tension disks for the thread lightly with both hands. Two different knobs are available to adjust the upper and lower thread tension.

10- Loop stand

This amazing overlock sewing machine can install four loops at once at a loop stand. These loops can install in different positions according to requirements. Antivibration cones and loop caps provide for smooth performance.

Video Guide for JUKI MO644D Portable Serger

JUKI MO-654DE/MO-644D: Preparing, Threading, and Adjustments


  • Foot controller
  • 4 Thread Nets
  • 4 Spool caps
  • Tweezers
  • Cleaning brush
  • Needle threader
  • Looper threader
  • Extra needles
  • Oiler
  • Needle inserter
  • User’s manual
  • Screwdriver
  • Vinyl dust cover
  • Accessories bag
  • Power cord
Lightweight and durable
Versatile stitching options
Adjustable presser foot
Easy to operate for beginners
Easy tension adjustment
Entirely with super fast speed
Lack of free arm feature
No onboard accessories storage

Common FAQs about JUKI MO 644D

Will this serger sew denim?

It depends upon the thickness. You can usually sew up to 12 oz canvas without any difficulty. So, the raw denim and jeans fabrics can sew easily.

However, it would help if you replaced the needle according to denim and other multiple-layer heavy fabrics. JUKI MO644D is a relatively quiet and smooth serger for light denim and jeans.

Would this serger be able to hand double-layer fleece?

Yes, of course, this is an excellent machine in the market for domestic and small home businesses. You can easily sew a multilayer of fleece on this fantastic sewing machine.

What kind of needles does this use?

JUKI MO644D comes with extra needles. Initially, you don’t need to buy different needles, but when you require you to use Schemetz #80, 80/12, and other universal brands come with 9, 10, 11, 12, 14.

What kind of fabric can sew on JUKI MO 644D?

  • Synthetic fabrics like blends, rayon, and polyester
  • Heavy or multilayer fabrics like denim and jeans
  • Natural fiber like cotton, linen, wool
  • Delicate textiles like velvet, silk, satin

Safety instructions:

Because, Your safety is our profit before, so starting the JUKI MO 644D, keep in mind the following instructions to save your machine and yourself.

  • Unplug the power cord before cleaning, oiling, or replacing any part.
  • Keep your eyes on the needle when the machine is running.
  • Keep away your hands and clothes from all moving parts.
  • Before using set it first correctly, like raise the support rod, engage the positioning stopper, put thread guide support, insert the thread guide into the support rod’s tip, and adequately fix it on the spool’s holder.
  • Always use a specific best oil for the sewing machine to minimize wear and tear.

Instruction Manual:

To download the complete user manual of JUKI MO644D, click here:

Bottom Line:

We hope this article covered everything about the sewing machine that a user may require. It will clarify all doubts and help to choose the best product. Here we mentioned all the essential factors and questions that might come to your mind.
No doubt, in this price range, JUKI MO644D portable serger is one of the best brands to purchase for domestic needs as well as commercial purposes. This machine is an excellent serger for all of your stitching requirements. I hope this article helps make a decision.