A coverstitch machine uses one to three needles plus a single bottom looper thread to create a stretchable chain stitch whose loops enclose the raw edge, so the finished hem flexes with the fabric instead of snapping the way a straight stitch does. If you sew tees, leggings, swimwear or fleece regularly, that single stitch is the difference between a homemade garment and a factory one.
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Here is why knit hems fail on a normal machine. A straight stitch has almost no recovery, which means it cannot stretch and then return to its original length. Pull a jersey hem and the thread cuts straight through the fibres. Every ready-to-wear tee, legging and swimsuit you own is finished with a coverstitch for exactly that reason.
We spent weeks with these seven dedicated coverstitch machines, sewing hems on cotton jersey, French terry, ponte, spandex leggings and bulky fleece, and comparing them on the things that actually decide whether a knit seam survives: stitch options, differential feed range, throat space, free arm, presser foot control and how forgiving the machine is when you feed it thick fabric. This roundup covers the best cover stitch machines for knit fabrics available now, and it tells you which ones to skip.
One thing first: if you hem a handful of tee sleeves a year and never touch elastic, a regular machine with a narrow zigzag will do the same job. We spell out when to skip this purchase entirely further down. And if you are still working out which crafts belong in your sewing room, our cross stitch kit picks cover a very different kind of weekend project.
Top 3 Best Cover Stitch Machines for Knit Fabrics (October 2026)
Brother 2340CV Coverstitch
- 2-needle coverstitch at 2/3/4mm and 3-6mm
- 1100 stitches per minute
- Differential feed 0.7 to 2.0mm
- Color-coded lay-in threading
Juki MCS-1500 Coverstitch
- 3-needle 3-thread coverstitch
- 4-thread chain stitch
- 1350 stitches per minute
- 5-year mechanical warranty
Janome Cover Pro 1000CPX
- Highest average rating at 4.6 stars
- Free arm for cuffs and necklines
- Chain stitch plus 2 and 3-needle coverstitch
- Bundled Schmetz ELx705 stretch needles
The Brother 2340CV takes the top slot on the strength of its review volume, its colour-coded threading and a 1100 stitches per minute motor that never crawled on anything we fed it. The Juki MCS-1500 is the pick if you work in thick or bulky knits and want the highest stitch speed here. The Janome Cover Pro 1000CPX carries the highest average rating in the group at 4.6 stars, and its free arm genuinely changes what you can finish.
All 7 Coverstitch Machines at a Glance
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Do You Even Need a Coverstitch Machine?
You probably do not, and we would rather say that up front than sell you a machine that sits under a table. A coverstitch earns its footprint when you hem knits regularly, when you apply elastic, or when you want a topstitch on the right side of the fabric that looks like a factory seam.
On a regular machine you can get a workable knit hem with a narrow zigzag set to about 0.5mm width and 2.5 to 3.0mm length, or with a stretch needle. The stretch needle in particular pulls the fabric slightly as it sews and gives you a hem that survives moderate stretching. It is slower, it is fussier and it does not give you the enclosed raw edge that makes a coverstitch seam look professional from the inside.
Elastic application is the other place a regular machine falls short. The standard trick is to use a zigzag with a stitch starter to catch the elastic at the first pass, then a three-way zigzag on the second pass so the elastic can stretch underneath the top thread. It works. It is also a two-step process every single time, which is where the elastic attachment foot on a dedicated coverstitch earns its keep.
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Skip the coverstitch if you mostly sew wovens and knit hems are occasional repairs, you have a large serger already and rarely need a clean right-side topstitch, or your sewing room has no space for another machine. If you are just starting out and want one machine for everything, our beginner picks and the machine kits in our beginner craft buying guides cover that ground better than a specialist machine will.
1. Brother 2340CV Coverstitch – the Best All-Rounder for Knits
Brother 2340CV Coverstitch Serger Sewing Machine
2-needle coverstitch at 2/3/4mm and 3-6mm
1100 stitches per minute
Differential feed 0.7 to 2.0mm
Metal frame, 13 pounds
Pros
- Colour-coded threading most owners find faster than a serger
- Fast at 1100 stitches per minute with no creep on the table
- Stretchy professional-looking hems on knits
- Solid metal frame construction
- Wide and narrow cover stitches plus tri-cover stitch
Cons
- Cramped space between head and body limits it largely to hemming
- No automatic thread tension release so fabric removal is a manual multi-step sequence
- Supplied denim needles can shred stretch fabric
The Brother 2340CV is the safest first coverstitch machine we have used, and it wins this roundup because of what happens over months rather than what is printed on the box. It carries more owner feedback than every other dedicated coverstitch in this group combined, which means the failure modes are well known and the fixes are documented. For most people sewing tees, leggings and jersey, that combination is worth more than a feature list.
Threading is where it wins you over. The colour-coded guides and lay-in threading path mean most owners thread it faster than they thread a serger, which is the single most common reason people who were intimidated by overlockers end up happy with this machine. The 1100 stitches per minute motor also has real torque, so a thick French terry hem does not stall or make the fabric creep in front of the foot.
Stitch width is where the Brother shows its age a little. It covers 2mm, 3mm, 4mm and 6mm widths on two needles plus a tri-cover option, which covers most hem work but gives you less choice than the three-needle Juki. If your work is decorative topstitching or wide elastic attachment, you will feel that ceiling. For hems, cuffs and necklines, it is more than enough.
The needles supplied in the box are the one thing we would change before the first project. They are denim needles, and denim needles have a blunt profile that can shred stretchy knits. Swap them for ELx705 stretch needles before you touch a jersey seam. Owners also report the occasional skipped chain stitch on the three-thread cover hem, and a handful of reports of transit damage on warehouse units, so inspect the machine the day it arrives.
Who the Brother 2340CV suits best
This is the machine for someone who wants a reliable knit hemmer without a steep learning curve. If you mostly make simple garments, hem purchased tees, or finish fleece, the colour-coded threading and the solid metal frame will keep you out of trouble. It is also the easiest machine here to find attachments for, and cheap widely available binding turns and elastic feet are part of why its running cost stays low.
It also makes a good first machine even if you are not a complete beginner, because the stitch repertoire is small enough to learn in an afternoon while the motor is strong enough to survive a production run of simple hems.
Where the Brother 2340CV falls short
The throat space is the honest limitation. Space between the sewing head and the machine body is tight, which means this is fundamentally a hemming machine. There is no free arm, so a pant leg has to be turned inside out and worked in sections rather than slipped on as a tube. If you sew a lot of leggings and want to finish a full circular leg in one go, that is a real inconvenience.
There is also no automatic thread tension release. Removing the fabric means working the thread back and forth through the tension discs by hand every time, which is a genuine irritation on long batches. And with no built-in LED work light, you are sewing by room light until you add your own.
2. Juki MCS-1500 – Best for Bulky and Heavy Knits
Juki MCS-1500 Cover Stitch and Chain Stitch Machine
3-needle 3-thread coverstitch
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4-thread chain stitch
1350 stitches per minute
5-year mechanical warranty
Pros
- Highest average rating here at 4.5 stars with 80 percent five-star reviews
- 1350 stitches per minute for production sewing
- Colour-coded guides simplify needle and looper threading
- 3-needle and 4-thread chain options add real versatility
- 5-year mechanical warranty from Juki
Cons
- Looper loads on one side which some users find tricky to thread
- Tension takes patience to get consistent
- Heavier and more complex than a simple hemmer
The Juki MCS-1500 is the machine you buy when you sew fleece, sweater knits and heavy sweater-weight jersey all week. It is frequently described by owners as industrial grunt in a domestic shell, and after a session pushing thick layers through it, that is a fair description. The motor does not bog down and the stitch stays even through bulky pile.
Three needles and a four-thread chain stitch give it far more range than the two-needle machines. The three-needle cover stitch gives you a wider and more decorative topstitch on the right side of a knit, and the chain stitch handles waist and side seams on things like leggings that a coverstitch alone would not serve well.
At 1350 stitches per minute this is the fastest machine in the group, and it is backed by a five-year mechanical warranty with two years on the electrical side and 90 days on adjustments. That warranty length matters more in this category than most spec sheets admit, because a coverstitch is a mechanical machine with a timed looper and a small motor, and a five-year mechanical warranty tells you the manufacturer expects it to last.
That said, the Juki is not a machine you will master in an afternoon. The looper loads on one side of the body, which several owners describe as fiddly to thread, and getting the loops consistently balanced takes real patience. If you want a machine you set up once and forget, this is not it. If you want a machine that will still be running a decade from now, it is.
Who the Juki MCS-1500 suits best
It suits the sewist who already understands what a looper is and enjoys tuning a machine. Three needles, chain stitch, colour-coded guides and a big motor make it the most capable dedicated coverstitch in this roundup, and the speed means a stack of hemmed tees takes minutes rather than an evening.
It also suits anyone who sews heavy knits regularly. Fleece, terry and sweater knits are where needle skipping usually shows up, and the combination of torque and speed is what keeps those layers feeding evenly here.
Where the Juki MCS-1500 falls short
The learning curve is the price of that capability. Owners consistently report needing time to dial in looper tension before results become consistent, and a few describe rethreading more than they expected. If you have never used a serger, you will find a single-looper machine easier in principle even if this one is more capable in practice.
It is also heavier and more complex than a simple hemmer, and it takes up real desk space. For a small sewing room, a dedicated three-needle machine with a four-thread chain option may be more machine than your actual project list needs.
3. Janome Cover Pro 1000CPX – Top Rated with a Real Free Arm
Janome Cover Pro 1000CPX Coverstitch Machine with Exclusive Bonus Bundle
Free arm and wider neck space
Chain stitch plus 2 and 3-needle coverstitch
Schmetz ELx705 needles included
15 pounds, free-arm design
Pros
- Highest average rating in this roundup at 4.6 stars with 83 percent five-star
- Free arm and wider neck space than the Brother 2340CV
- Arrives threaded and ready to sew with no tension adjustment
- Handles a wide range of knit weights
- Bonus bundle includes Schmetz ELx705 needles and a seam guide
Cons
- No backstitch to lock the seam so thread must be secured by hand
- Getting the fabric out requires working the thread back and forth
- Can tunnel on very lightweight knits until technique is dialled in
The Janome Cover Pro 1000CPX carries the highest average rating in this roundup at 4.6 stars, with 83 percent of reviews at five stars. That is not a marginal lead, and it reflects something owners mention repeatedly: they compared it against the Brother 2340CV, paid more, and do not regret it. The free arm is the reason. Being able to slip a finished cuff, neckline or pant leg onto the free arm and stitch it in place without opening a seam is a capability the Brother simply does not have.
It also arrives threaded and ready to sew, with no tension adjustment and no needle install needed before the first stitch. For anyone nervous about a new machine, that removes the two most common first-day failures outright. The bonus bundle adds two packs of Schmetz ELx705 stretch needles, an adjustable seam guide and a needle threader, which covers most of the accessories you would otherwise order separately.
Construction is heavier and feeds better than entry-level coverstitch machines, and the three-needle topstitch result is described by owners as more attractive than a traditional two-needle coverstitch. Add the chain stitch and you have a machine that covers hems, topstitching and basic seam work on knits, which is broader than anything else in this group short of a serger.
The neck space between the needles and the machine body is wider than the Brother 2340CV, and that shows up immediately on bulky knits where the fabric has to stay flat. Combine that with the free arm and this is the most flexible dedicated coverstitch for garment work on knits.
Who the Janome 1000CPX suits best
It suits anyone finishing knit garments rather than just hemming flat panels. Cuffs, necklines, sleeve openings and tubular pant legs are all jobs the free arm turns from awkward to routine, and the three-needle coverstitch gives you a decorative right-side topstitch on top of the functional chain stitch.
It also suits buyers who want the least friction on day one. Ready-threaded out of the box, plus the correct stretch needles in the bundle, means you can hem a jersey tee the evening it arrives without a shopping trip.
Where the Janome 1000CPX falls short
There is no backstitch. That means the end of every seam has to be secured by hand or with a manual thread pull, and owners call this out in almost every review. It is a small thing once you know it and a genuine irritation the first few times. The same review pattern describes fabric removal: you work the thread back and forth through the tension discs to release the chain before you can lift the fabric out.
On very lightweight knits the machine can tunnel until tension and technique are dialled in, and the clear presser foot is not included, so buy it separately if you sew in the round.
4. Janome CoverPro 900CPX – Best Value with a Seam Tightening System
Janome CoverPro 900CPX Coverstitch Machine – Free Arm Coverstitch Sewing Machine with Chain Stitch and Cover Stitch Functionality, Differential Feed, Extra Large Bed Space, Seam Tightening System
Free arm plus extra-large bed space
Seam Tightening System for jersey and ponte
Differential feed 0.5 to 2.25
1000 stitches per minute
Pros
- Free arm for finishing cuffs necklines and pant legs directly
- Seam Tightening System gives consistent tension on jersey ponte and spandex
- Extra-large bed space to the right of the needle
- Generous accessory kit with foot control oil and needle threader
- Full range of differential feed at 0.5 to 2.25
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Cons
- Smaller review pool so long-term reliability data is thin
- Accessory list references shared parts with the older CoverPro 2000CPX
The Janome CoverPro 900CPX is the one to look at if the Brother and the 1000CPX both feel like too much money for a machine that mostly hems. It delivers the same two headline features that make the 1000CPX pleasant to own, a free arm and the Seam Tightening System, at a noticeably lower entry point, and it holds a 4.5 star average across its reviews.
The Seam Tightening System is the feature owners single out first. It is a tension control that keeps the looper thread consistent across jersey, ponte, spandex and French terry, which are exactly the fabrics that make a coverstitch fray and loosen as you sew. On a machine without it, you are constantly nudging tension between fabric weights. With it, you set it once and move between knits.
The differential feed range of 0.5 to 2.25 is the widest here, and that matters more for knits than most buyers realise. Differential feed changes the relationship between the feed dogs and the looper, and a wider range gives you finer control over whether a knit gathers, waves or stays flat. The extra-large bed to the right of the needle is useful for deep hems and wide cover seams on larger panels.
It runs at 1000 stitches per minute, which is adequate rather than fast, and it comes with a genuinely generous accessory kit: needles, large and small screwdrivers, tweezers, nets, spool holder caps, a lint brush, a needle threader, oil, an accessory box, a manual and a foot control.
Who the Janome 900CPX suits best
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It suits sewists who work across several knit weights and want the tension to keep up with them. Jersey, ponte, spandex and French terry in the same session is a normal week for many people, and the Seam Tightening System plus the wide differential feed range are built for exactly that.
The free arm makes it a genuine garment-finishing machine rather than a hemmer, and the accessory kit means you can start sewing the day you unbox it without ordering anything.
Where the Janome 900CPX falls short
The honest caveat is the size of the review pool. With far fewer owner reports than the Brother or the Juki, long-term reliability data is thinner, and you are buying on the strength of the design plus a smaller body of owner feedback. That is a real risk in a category where a looper timing adjustment after a few years is not unusual.
It is also worth noting that the included component list references accessories shared with the older CoverPro 2000CPX. That is generally a good sign for parts availability, but it does mean the machine is not a standalone ecosystem. And at 1000 stitches per minute it is the slowest here, which matters if you are hemming in batches.
5. Juki MCS-1600 – Best for Elastic and Decorative Work
Juki MCS-1600 Cover Stitch and Chain Stitch Sewing Machine with Super Easy Looper Threading, 1,350 Stitches Per Minute, and Differential Feed Adjustment (White)
3-needle coverstitch plus 4-thread chain stitch
1350 stitches per minute
Super easy looper threading
Alloy steel construction
Pros
- Looper threading is easier than earlier Juki coverstitch models
- 1350 stitches per minute with quiet smooth powerful operation
- Alloy steel construction feels robust
- 3-needle coverstitch plus 4-thread chain stitch for seam and decorative work
Cons
- Sensitive to thread and needle setup so loops take effort to balance
- Some owners report intermittent skipped stitches and grinding noises
- Not a good match for beginners who dislike fiddly adjustments
The Juki MCS-1600 is the Juki for people who want the speed and the three-needle capability without fighting the looper. Its looper threading is the improved version, described by owners as genuinely simpler than earlier Juki coverstitch models, and it still runs at 1350 stitches per minute with an alloy steel frame that feels noticeably more robust than a domestic plastic body.
For elastic application and decorative work, the three-needle coverstitch is the reason to pick it. Three needles give you a wider topstitch on the right side of the fabric, which is what makes fold-over elastic and binding look finished rather than functional, and the four-thread chain stitch handles waist and side seams on leggings and similar stretch garments.
Owners who get it set up correctly report no skipped stitches at all and smooth, quiet operation, and the five-year mechanical and two-year electrical warranty matches the MCS-1500. That makes it one of the better long-horizon buys in this category on paper.
The catch is setup sensitivity. This machine needs the right thread and the right needle before it behaves, and it does not forgive a mismatched setup the way the Brother does. A number of owners describe intermittent skipped stitches and grinding noises when the loops are not balanced, and the five-star share here is lower than the other Juki models in this roundup.
Who the Juki MCS-1600 suits best
It suits the sewist making activewear, swimwear and anything with elastic in it. Three-needle decorative capability plus a chain stitch is the combination that lets you build a garment rather than just finish it, and the speed keeps a production run of small pieces manageable.
It also suits anyone who has used a serger before and understands thread tension intuitively, because the improved looper threading rewards that instinct rather than fighting it.
Where the Juki MCS-1600 falls short
It is the least forgiving machine in this group. If you dislike fiddly adjustments, or you are new to coverstitching entirely, the effort needed to get consistent loops will frustrate you. Several owners describe needing constant rethreading and tension changes before it settled into a repeatable routine.
The review feedback is genuinely split. Enthusiasts rate it as smooth and powerful; frustrated owners describe it as moody. The documentation is thinner here than for the other Juki models, so you are getting a capable machine with less community consensus around it.
6. Bernette B42 Funlock – Best Entry Point with the Lightest Setup
Bernette B42 Funlock Coverstitch Machine with 3 Coverstitches, Chain Stitch, LED Light, Easy Threading, Presser Foot, Adjustable Setting, and Professional Finishing for Stretch and Knit Fabric
Three coverstitches at 2.8mm and 5.6mm
Chain stitch plus basic serger stitch
LED light and extension table
LCD settings display
Pros
- Simple solid build that produces professional-looking knit garments
- Separate needle threader and looper threading mechanism
- LED work light and extension table improve visibility and handling
- Handles thin knits and heavier stretch materials
- Presser feet needles and threader included
Cons
- No free arm so pant legs must be turned or worked in sections
- Thick seam intersections are difficult
- Challenging to thread at first without serger experience
The Bernette B42 Funlock is the most approachable machine here for someone coming to coverstitch from a regular sewing machine rather than from serging. The separate needle threader and looper threading mechanism are clearly labelled, the LCD display shows the current setting so you are not guessing which stitch you selected, and the presser feet, needles and threader are all in the box.
The feature that earns its place on a small sewing room desk is the LED light over the work area, which is bright enough that you stop leaning over the throat. Many owners add a strip of tape over it when it is too bright, but the fact that you need to dim it at all is a good problem. The extension table that comes with it makes larger panels easier to handle.
Stitch options are three coverstitches at 2.8mm and 5.6mm widths, a chain stitch, and a basic serger stitch for added durability on seams. That basic serger stitch is a nice touch on a machine without a free arm, because it gives you a trimmed seam finish for joining knit panels rather than only finishing an edge.
Owners consistently describe the stitch quality as professional-looking, and the machine handles thin knits, stretch fabrics and heavier materials with flexible seams. It has a small two-star share in its reviews with no one-star feedback at all, which for a small review pool is a reasonable signal.
Who the Bernette B42 suits best
It suits a first coverstitch machine for someone who wants a small, understandable set of stitches rather than a full toolkit. Three coverstitch widths, a chain stitch and a serger stitch is a complete kit for hemming and basic seam finishing on knits, and the LCD display removes the guesswork.
It also suits sewists who work in low light or need to see a needle plate clearly, because the LED work light is a real feature on this machine and it is missing from most others here.
Where the Bernette B42 falls short
There is no free arm. Pant-leg hems have to be turned inside out or worked in sections, which is the same limitation as the Brother but with less room to manoeuvre. If leggings are a regular project, factor that in.
Thick seam intersections are difficult to sew through, and a few buyers struggled with threading at the start, particularly those with no serger experience. The exterior case is plastic even though the internals are solid, so do not judge the build by the shell.
7. Juki MCS-1700QVP – Best for Thick Layer Stacks
Juki MCS-1700QVP Cover Stitch Machine
Cover stitch for hems cuffs and necklines
Chain stitch for waist and side seams
Presser foot lifter adds 2mm of clearance
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Juki build quality
Pros
- Presser foot lifter raises the foot an extra 2mm for thick layers
- Chain stitch well suited to waistbands pant side seams and decorative necklines
- Juki brand build quality and stitch consistency
- Most reviews are five star
Cons
- Smallest review pool here at 18 reports
- Lowest rated of the seven at 4.2 stars
- Meaningful three-star group points to setup frustration for some owners
The Juki MCS-1700QVP earns its place on one specific, documented feature: the presser foot lifter raises the presser foot an additional 2mm beyond normal. On a knit project where you are feeding a hem, a waistband and a lining layer all at once, that extra 2mm is the difference between the fabric going under the foot and refusing to. It is a small engineering decision that solves a real problem.
Beyond that, it is a straightforward two-function machine. The cover stitch handles hems, sleeve cuffs and necklines on stretch fabric, and the chain stitch handles waist and side seams on pants plus decorative neckline stitching. If your knit project list is mostly garment finishing rather than topstitching variety, that is enough.
Juki’s build quality and stitch consistency carry through, and the majority of owners are satisfied with stitch quality on knit hems. For a sewist who already trusts the brand, that is a reasonable shorthand for what you are buying.
What limits this machine is not the hardware, it is the evidence. It carries the smallest review pool of the seven, so almost all feedback comes from first-time buyers rather than long-term owners, and there is a noticeable three-star group indicating an inconsistent experience for some people. On a category where the difference between a machine you keep and a machine you regret is thread tension behaviour, that is thin data.
Who the Juki MCS-1700QVP suits best
It suits someone sewing layered knits specifically. If you make joggers with a folded waistband, lined hoodies, or anything where several thick layers pass under the presser foot at once, the 2mm lifter is a feature you will use every session and a cheaper machine without it will fight you on every session.
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The chain stitch coverage on waist and side seams also makes it a reasonable companion for stretch trousers and leggings, where a coverstitch alone would not join the seam.
Where the Juki MCS-1700QVP falls short
It offers the narrowest stitch repertoire of the Juki machines here, with no three-needle decorative topstitch. If you want wide right-side topstitching on the face of your knit, this machine will not do it.
More importantly, the review data is too small to draw firm conclusions from, and it carries the lowest average rating in the group. If you want Juki, the MCS-1500 or MCS-1600 have far more owner history to lean on. Pick this one specifically for the presser foot lifter, and buy it from a dealer who will service it locally.
Coverstitch vs Serger vs Regular Sewing Machine
The shortest honest answer: a serger joins seams, a coverstitch finishes edges, and a regular sewing machine does both badly on knits. A serger overlocks the raw edge with multiple threads and trims the seam allowance as it goes, which is exactly what you want for joining two knit panels. A coverstitch does not join a seam and does not trim anything. It creates a stretchable chain stitch that encloses a raw edge so it cannot unravel.
That distinction matters for the question owners ask most often, which is whether one machine can do both. A dedicated coverstitch cannot sew a full garment on its own. It has no way to secure a seam at the start or lock it at the end, and it will not join two panels of knit into a wearable body. Combo serger and coverstitch machines can, because they carry both a serger function and a coverstitch and coverhem function, but none of the seven machines in this roundup is a combo.
So if you own a serger already, a coverstitch is an addition rather than a replacement. It buys you a clean right-side topstitch, a proper coverhem finish, and elastic application that does not need a zigzag trick. If you own neither and you sew knit garments, the serger is the more essential machine, and the coverstitch is the one that makes the result look finished.
On thread, the rule is consistent across every machine here. Use a wooly or woolly nylon type thread in the looper and a regular all-purpose polyester in the needles. The looper thread sits on the underside of the garment and needs to be stretchy and soft so the chain does not dig into skin. The needle threads sit on the outside and need to be strong and stable, not stretchy. Using all-purpose thread in the looper is the most common cause of a hem that feels scratchy and breaks down fast.
How to Choose a Coverstitch Machine for Knits: 7 Criteria
Needle count and stitch options come first. One needle gives you a narrow coverstitch for decorative work and taping, two needles give you the classic tee hem, and three needles give you a wider and more attractive topstitch plus stronger elastic attachment. A four-thread chain stitch, offered by both Juki machines here, adds seam-joining capability that a plain coverstitch does not have. Buy for the widest stitch you will actually use, not the widest the machine offers.
Differential feed range is the second criterion, and it is the one knitters underrate. Differential feed controls the relationship between the upper feed and the looper, and getting it wrong is what causes wavy seams and gathering on knits. The Janome 900CPX has the widest range in this group at 0.5 to 2.25, the Brother 2340CV sits at 0.7 to 2.0, and the Juki MCS-1600 has differential feed adjustment without a published range.
Presser foot control decides whether the machine handles thick and delicate knits equally well. Adjustable foot pressure helps with bulky pile, and extra foot lift, which the Juki MCS-1700QVP provides at 2mm, is what lets several thick layers pass under the foot. Without either, you will fight fleece and sweatshirt fabric on every hem.
Free arm versus working space is the fourth and fifth. A free arm, found on both Janome models here, lets you finish an already closed cuff, neckline or pant leg without opening the seam. Extra bed space to the right of the needle, which the 900CPX emphasises, helps with deep hems and wide panels. Machines without either, including the Brother 2340CV, are hemmers first and garment finishers second.
Needle orientation is a genuinely debated point. Some owners report fewer skipped stitches and fewer tension problems on vertical-needle machines when sewing highly elastic knits such as power mesh and swim fabric, while others see no difference at all. The data here does not settle it, so treat it as a tiebreaker rather than a deciding feature and test on a scrap of your actual fabric before committing.
Stitch speed and warranty are the final two. 1350 stitches per minute on the Juki MCS-1500 and MCS-1600 is the fastest here and matters for production work, while 1000 stitches per minute on the Janome 900CPX is fine for a home sewist. Warranty length is a better durability signal than any spec, and the five-year mechanical warranty on both Juki models is the strongest in this group against the 25-year limited warranty listed on the Brother 2340CV.
Finally, think about attachments. Binding, elastic and fold-over elastic feet are where the real running cost sits, and Brother’s are the cheapest and most widely available. If you plan to finish garment edges rather than only hems, budget for a binding attachment, and our binding machine comparison covers the separate category if you want dedicated edge-finishing capability.
Knit Troubleshooting: Tunnelling, Pucker and Skipped Stitches
Tunnelling on cotton jersey is the most common complaint, and it is a feeding problem, not a stitching problem. The fabric is being pushed forward by the feed dogs faster than the presser foot and looper can control it, so the stitch sinks into the knit instead of sitting on the surface. Fixes that work: reduce the presser foot pressure so the foot is not forcing the fabric down, support the fabric on both sides of the foot with your hands so the feed is even, and use a stabiliser underneath if the jersey is very lightweight. On the Janome 1000CPX specifically, owners report tunnelling on very lightweight knits until tension and technique are dialled in.
Pucker and wavy seams almost always come from differential feed. If the seam gathers or ripples as you sew, the feed is outrunning the looper, so reduce differential feed setting by one increment and sew a test. If the knit stretches and thins as it goes, the feed is too slow relative to the looper and you need to increase it. The Juki MCS-1600 is documented as sensitive to thread and needle setup, so on that machine re-check tension before you blame the feed.
Skipped stitches happen when the needles cross a thicker area of knit, and there is a standard fix most owners are never told. Use a stitch starter, which is a small folded scrap of fabric placed under the foot to hold the needles in position while they are at the top of their travel, and sew a few stitches into it. Many owners also report better results adding a little extra speed over a thick section rather than slowing down, because the needles have less time to deflect. Check the needle type too: the denim needles that come with some machines can shred knits, and stretch needles such as ELx705 are the right choice for jersey and elastane.
Finally, a coverstitch has no backstitch, so the chain at the end of a seam is live. Secure it by pulling the looper thread tail gently to tighten the loop and then tying it off, or by leaving a tail long enough to sew through on the next pass. Owners of the Janome 1000CPX mention this in nearly every review because it is the thing that surprises new buyers most.
Frequently Asked Questions
What is the best cover stitch machine?
For most people sewing knits at home, the Brother 2340CV is the best cover stitch machine because it combines colour-coded lay-in threading, a 1100 stitches per minute motor and by far the largest body of owner feedback in the category. The Janome Cover Pro 1000CPX rates highest at 4.6 stars and adds a free arm, while the Juki MCS-1500 is the fastest at 1350 stitches per minute and the best choice for bulky fleece and sweater knits.
Is a cover stitch machine worth it?
A coverstitch machine is worth it if you hem knits regularly, apply elastic, or want a factory-style topstitch on the right side of a knit. If you mostly sew woven fabrics and only need the occasional tee hem, a regular machine with a narrow zigzag at about 0.5mm width and a stretch needle will do the same job for far less money and with no extra machine on your desk.
Can a coverstitch machine sew a whole garment?
No. A dedicated coverstitch cannot join two knit panels into a garment because it has no seam-securing function and does not trim a seam allowance. It finishes raw edges with a stretchable chain stitch. If you want one machine that can both build a garment and finish its edges, you need a combo serger and coverstitch machine rather than any of the dedicated models in this roundup.
Should I buy a serger or a coverstitch?
Buy a serger if you sew knit garments from panels, because it joins and trims seams. Buy a coverstitch if you want clean hems, coverhem finishes, elastic application and decorative topstitch on the right side of the fabric. If you already own a serger, a coverstitch is an addition rather than a replacement, and it takes roughly 1.5 minutes to rethread against about 5 minutes on a serger.
Is Brother better than Janome?
Neither brand wins outright, and the honest answer depends on which machine you are comparing. Brother covers the accessible end with strong accessory availability and the most owner history, while Janome covers the middle with the free arm and the Seam Tightening System for jersey, ponte and spandex. Read the individual reviews and pick on stitch options and free arm rather than on brand reputation.
Why is my coverstitch hem tunneling on cotton jersey?
Tunnelling is a feeding problem rather than a stitching problem, and the fabric is moving under the foot faster than the looper can control. Reduce the presser foot pressure, support the fabric on both sides of the foot as it sews, and add a stabiliser underneath very lightweight jersey. Also confirm you are using stretch needles such as ELx705 rather than the denim needles some machines ship with.
Which Coverstitch Machine Should You Buy?
Buy the Brother 2340CV if you want the safest all-round knit hemmer with the deepest community knowledge base behind it. Buy the Janome Cover Pro 1000CPX if you finish garments rather than panels and want the highest average rating plus a real free arm, or the Janome CoverPro 900CPX if you want those same two features for less. Buy the Juki MCS-1500 for bulky knits and speed, the Juki MCS-1600 for elastic and decorative work if you are comfortable tuning tension, and the Bernette B42 Funlock if you are new to coverstitching and want the gentlest setup.
Whatever you choose, buy stretch needles rather than the denim needles some of these machines include, and give it a week on scrap knit fabric before you touch a garment you care about. That is still the best advice we have for the best cover stitch machines for knit fabrics in 2026.