When you think about a serger, you seldom think that it will look more like a conventional sewing machine. That’s exactly what we observed when we reviewed the Pfaff Coverlock 3.0 machine.

The only real give away is the five spindle spool bed mounted on the back of the machine.

The Pfaff Coverlock 3.0 is a sleek, efficient serger that is capable of rendering 23 overlock stitches at a rate of about 1,100 stitches per minute.

At A Glance

Like all other coverlock machines, the Coverlock model 3.0 looks like a cross between a sewing machine and a serger.

Pfaff Coverlock 3.0, a sleek and efficient serger

Pfaff Coverlock 3.0, a sleek and efficient serger

It has five color coded tension dials on the front, five cone thread spindles on the back and the capability to work with up to three needles.

Five color coded tension dials

Five color coded tension dials

The Pfaff Coverlock version 3.0 also has a free arm as well as a removable 18 inch Plexiglas worktable and extra space on the right side of the needle that make it possible to work with oversized or small intricate projects with the greatest of ease.

A removable 18 inch Plexiglas worktable

A removable 18 inch Plexiglas worktable


One of the most popular features on the Coverlock 3.0 is the Plexiglas extension table that mounts on the free arm to give the sewer an additional 18 inches of workspace.

With the extension table in place, it is possible to work on large projects with less concern about fabric slipping off of the work table and onto the floor.

The extra large sewing space on the Coverlock 3.0 is a dream come true. Large sewing projects like coats, purses, bags and quilting are easier with this machine.

When coupled with the extension table, the workspace is doubled, allowing the home sewer to get a lot more done with speed and ease.

The five thread safety stitch is possibly the most durable stitch option available on any machine. It is strong and tear resistant under the most extreme pressure.

The five thread option gives users a lot of choices that are not available with four thread sergers.

With the five thread cover stitch, it is possible for the home sewer to expand their repertoire of utility and decorative stitches.

The 23 available stitches make it possible for user to do everything from basting to hemming in just one step.

Ability to use up to five threads

Ability to use up to five threads

With just a little bit of imagination, it is possible to create some truly eye-catching fashions by using contrast rayon thread to add accents to sportswear or casual clothes… or to easily produce exceptional borders and trims for quilts.

The ability to use up to five threads gives the user a choice of using any one of 23 stitches to trim, overcast, and stitch sewing projects in a fraction of the time.

The innovative German engineering of the Pfaff Coverlock 3.0 makes it easy for the user to change between overlock and coverstitch options without changing presser feet or the needle plate. Stitch options include:

  • Two thread overlock stitch – used to create narrow or wide flatlock stitches and rolled edges
  • Three thread overlock stitch – this option is used to produce narrow or wide seams. It is also used to add decorative touches.
  • Four thread overlock stitch– this reinforced overlock stitch is ideal for straight sewing as well adding decorative trims and for finishing seams and edges.
  • Five thread overlock stitch – this option is a combination of two different stitches to produce a sturdy seam that will withstand extreme wear and tear.
  • Chainstitch – use this option when you are basting or when you would normally use a traditional open pressed seam.
  • Coverstitch – this is an excellent option for working with elastic, finishing knitwear and sewing hems.

The built in carrying handle makes it possible to move the machine without tangling the threads or having to remove them.

Built in carrying handle

Built in carrying handle

Other features include a built in rolled edge option which makes it possible to sew rolled hems with two or three threads without changing the needle plate or presser foot.

The automatic tension adjustment allows the user to identify the thread and stitch without worry.

The tension release feature releases threads, allowing them to pull through easily when the presser foot is in the raised position.

The differential feed adjusts to ensure that each seam is perfect. A color coded threading chart stamped into the front cover makes threading less complicated.

The adjustable speed feature makes it possible to slow down or speed up as needed. The adjustable stitch length and cut width options combine to make working with different fabric weights and methods a breeze.

The availability of extra clearance under the presser foot makes it possible for users to work with multiple layers of thick fabric.

One of the most import features, even if not the most recognizable is the safety lockout feature which disables the machine when the front cover is open, avoiding the remote possibility of an injury while threading.

The movable upper cutter can be taken out to make it possible for using special techniques. The built in thread cutter is conveniently located to make cutting threads fast, safe and easy.

Working with the Pfaff Coverlock 3.0

Depending upon the sewing project, people who use this machine have the option of using two, three, four or five threads and one, two or three needles.

The step by step interactive DVD color coupled with the coded thread guide inside the looper cover make threading the Pfaff Coverlock 3.0 as simple as can be.

Coded thread guide inside the looper cover

Coded thread guide inside the looper cover

Regardless of the number of thread spools or the type of stitch desired, the DVD clearly shows all of the steps necessary to not only thread the machine, but to make all of the necessary adjustments and settings to the machine itself.

The DVD is produced in such a way that it’s almost like having an expert there to hold your hands and literally guide your every single move.

The four thread option is ideal for sewing, hemming, trimming and edging. Therefore, for this review, we decided to use four threads and two needles.

This option is also used most frequently by home sewers who have sergers in their sewing rooms.

Sewing on the Pfaff Coverlock 3.0 is smooth, quiet and fast. There is virtually no vibration whatsoever.

Sewing is smooth, quiet and fast

Sewing is smooth, quiet and fast

The large foot pedal is comfortable to use and requires just a little bit of pressure to engage the needle and complete a row of perfect stitches, regardless of whether we are using an overlock stitch or a coverstitch.

The enormous workspace is a delight. Very few machines offer this much clearance.

The extra space is ideal for working with large projects like coats, hand bags, drapes, quilts and even wall hangings.

The adjustable two speed control is conveniently located on the foot control and very easy to use.

This customizable feature makes it possible for the home sewer to have even greater control while maneuvering the most intricate jobs when high speed sewing and serging is not practical.

The differential feed and the ability to adjust the pressure on the presser foot makes working with all fabric weights and thicknesses easy.

Seams do not pucker or stretch, even when working with very delicate or light weight fabric or multiple layers of thick, heavy weight material.

If, however, you want to create a unique decorative look, for instance, to create decorative flower appliqués, you can reverse the differential feed setting to produce an awesome visual effect.


  • Natural fibers/cotton-linen-wool
  • Fine fabrics/silk-satin-taffeta/velvet
  • Knits
  • Synthetic fabrics/blends-rayon-polyester
  • Upholstery
  • Leather/suede
  • Fur
  • Reptile skin
  • Canvas/Twill
  • Plastic/Rubber
  • Extra thick fabrics or multiple layers


Accessories that are included with the Pfaff Coverlock 3.0 include:

  • An interactive DVD detailing threading instructions for all 23 stitch options

    An interactive DVD detailing threading instructions

    An interactive DVD detailing threading instructions

  • The plexiglass work table extension mentioned above
  • Five spools of white Mettler thread
  • Five mesh thread covers
  • Five spool caps
  • Seam gage
  • Oil dispenser
  • Screwdrivers
  • Vinyl dust cover
  • Owner’s manual
  • Lint brush
  • Extra needles
  • A catch bag to hold the trimmings as they fall from the machine

    Pfaff Coverlock 3.0 accessories box

    Pfaff Coverlock 3.0 accessories box

Although the Coverlock 3.0 comes with a universal snap on presser foot that can be used with all of the standard stitches that come with the machine, a selection of optional presser feet are available from the manufacturer.

Pfaff Coverlock 3.0 accessories

Pfaff Coverlock 3.0 accessories


After each useMonthly*Once Each Year**As Needed
Clean loopers and feed dogs
Wipe head with soft dry cloth
Wipe head with soft damp cloth
Service by sewing machine repair professional

* more often if the machine is used for extended periods of time or if used frequently

**more often if the machine is used heavily or if it is not operating properly

Tying Off The Loose Ends

The Pfaff Coverlock 3.0 is an excellent choice for the home sewer regardless of skill level.

The detailed threading instructions make it the perfect selection for the new sewer as well as the lifelong home sewer who has never used a serger before.

Although there is a slight learning curve for those who are accustomed to mechanical sergers, the Coverlock model 3.0 is a practical and user-friendly machine that is extremley reliable.

It is easy to set up and use – due largely to the thorough instructions provided on the DVD.

Anyone who purchases this machine… even the veteran serger… should take the time to watch this DVD and go through each and every one of the instructional steps.

The seasoned person who has been using a different serger at home for a long time may think it a waste of time and energy, but will soon come to recognize that skipping these instructions will result in hours of self instruction that could have been spent producing an array of fabulous new clothes, accessories and home décor accents for themselves, family members and friends.

A recent survey of people who use the Pfaff Coverlock 3.0 on a regular basis reveals that at a suggested retail price of about $1,000, this particular electronic serger is a very good value for the money.

The users who participated in this survey gave this machine high marks all around, rating it above average in performance, reliability, user-friendliness and value.

Comments and observations reveal that the Coverlock 3.0 is an excellent choice when it comes to size, portability, stitch options, safety, ease of operation, the user-friendly manual and instructional DVD, and available accessories.*

Taking the Pfaff Coverlock 3.0 to your local sewing machine service and repair professional for servicing every time it needs to be cleaned may be a turn off to veteran home sewers, but it is a minor inconvenience.

All you have to do is take a few moments to consider the many functions this machine can perform that simply cannot be replicated on older mechanical machines.

The inconvenience of a little bit of downtime is well worth the many benefits you reap in the long run. Besides, there is no better way to protect your investment than to make sure you give your machine the very best care possible.

Pfaff Coverlock 3.0 Review
Link To Official Website
Skill Level:
Needs lots of help – able to sew a straight seam but unfamiliar with most sewing techniques; needs assistance and instruction on basic sewing techniques.
Competent – can make different clothing items without assistance or guidance, but not good enough to sew intricate projects or to sew without a pattern.
Expert – can sew anything without instruction or assistance; possesses an expansive knowledge of sewing techniques and terminology.
Stitch quality
Ease of use
  • Plexiglass oversized work table
  • 23 stitch options
  • 2 speeds
  • Manual tension adjustment
4.8Overall Score
Reader Rating: (20 Votes)

13 Responses

  1. Vernelle

    Renee –

    Thank you very much for visiting Sewing Insight. I have not yet had an opportunity to review the Pfaff Coverlock 4.0. There are, however, a few very significant differences between the 3 and the 4. You might want to take a look at the comparison chart where you can review a detailed listing of the common features and differences between the two machines at a glance. http://www.pfaffusa.com/media/comparision_chart.pdf

  2. Karen

    Thank you for this very good review. I have this machine but haven’t started using it yet. I am having issues running the DVD? I am using a Mac and it wont let me view it. I returned it and was sent a replacement DVD but its the same. I am guessing that the DVD is pretty important helping me learn to thread so I am very frustrated.

    • Mary R

      If you go to pfaff.com, you can see a WONDERFUL tutorial for each step of threading your coverlock for EACH possible stitch, as well as the suggested uses for each stitch and what it will look like:)

      I set my laptop beside my coverlock to run the tutorials as I set up for a lovely creative day:)

    • Frustrated seamstress

      What can you do when the auto tension knob no longer changes the tension settings?

  3. Vernelle

    Karen –

    Thank you for visiting Sewing Insight. I am sorry to learn that you are having so much difficulty with the DVD.

    Most independent stores and authorized dealers that sell sewing machines offer training classes for people who purchase new machines. I suggest you contact the store where you bought your Pfaff Coverlock 3.0 and ask the sales staff there to help you master the threading process.

    Happy Stitching.

  4. Craftyvirgo

    I have had my Pfaff Coverlock for a few months now and I love it! Yes it takes a bit of time to get to grip with the threading but once sorted the stitch quality is beautiful. It is a big machine but solid. I wrote a simple chart that probably only i could understand of how to thread up and haven’t looked back since. Love, love it, love it!

  5. Fanny Luuong

    When I brought the PFAFF 3.0 coverlock the feet was so low and I was wondering if any chance I can make the feet go higher.

  6. Vernelle

    Hello, Fanny –

    Adjustable presser foot pressure is standard on the Pfaff Coverpro 3.0. I suggest you refer to your owner’s manual for detailed instructions on how to get the most out of this and other Coverpro features.

    Happy Stitching.

  7. Yinng

    Dealers are discouraging me from buying this, or any coverstitch machine, saying the process to convert from overlock to coverstitch is so tedious and difficult most people buy two separate machines and just leave them always set up for one function or the other. I wish the video had shown this conversion as the comparison chart of Hobbylock 2, 2.5 and Coverlock 3 and 4 says NO needle plate or presser foot change is required. What, exactly, needs to be added on or taken off to change from overlock to coverstitch?

    • Vernelle

      Yinng –

      You do not indicate your skill level. I do not recommend the use of this machine by beginners. Some people at the intermediate level may also have a challenge because the dealers are correct… converting from overlock to coverstitch can be a challenge for some… but not for all.

      You asked for a comparison chart between the Husqvarna/Viking Hobbylock 2 or 2.5 with the Pfaff Coverlock 3.0. In my opinion, of the three machines, the Pfaff is the easiest to operate.

      Happy stitching.

  8. Yinng

    Also, the review summary at top has manual tension adjustment as a CON yet in the body of the review it says, “The automatic tension adjustment allows the user to identify the thread and stitch without worry.” I’m confused, is it automatic or manual?

  9. Vernelle

    Hello, Yinng –

    Thank you for visiting Sewing Insight.

    I list the manual tension adjustment as a ‘con’ because most people prefer an automatic tension adjustment feature because it is a significant time saver. I get far more requests for information about machines with automatic tension adjustment than you can imagine.

    Manual tension adjustment, however, is a plus when it comes to working with specialty fabrics and very heavy fabrics. Therefore, those who work with these types of fabrics go out of their way to avoid automatic tension adjustment.

    I can understand why the conflicting statements can be confusing, but the truth of the matter is, one person’s treasure is another person’s nuisance.

    Happy stitching.


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