Merrow Community

where the Stitch and Community matter®

How to Navigate

this is the Merrow community. It's a place dedicated to the people who use Merrow machines and value the quality of the stitch.

To get back to the Main Pages please go here

the stitch matters, we believe great stitching should be the standard


  • Add Videos
  • View All



Welcome to the Stitch Matters Program


m-2dnr-1 won't chain off 1 Reply

Started by donna martin in Technical Help. Last reply by donna martin Jun 19.

Changing the feed cams on a MB-4DFO

Started by Cynthia Valenzuela in Technical Help Nov 21, 2013.

adjust the feed on merrow a-3dw 9 Replies

Started by terry dolin in Technical Help. Last reply by Gary LaGuardia Nov 12, 2013.

Threading the A 3DW

Started by ChrisAnne Shultz in Technical Help Sep 2, 2013.

Missing Loops

Started by David Castle in Technical Help Aug 30, 2013.

Merrow (the company) Blog

Merrow ActiveSeam enters the Indian and Bangladeshi markets for athletic and technical apparel

Courtesy of StitchWorld India...

What does a 176 year old sewing machine manufacturer based in the US do when faced with competition from a Chinese sewing machine industry that is getting bigger by the day? For some the answer may be to cut prices or shut shop, but not for the Merrow Sewing Machine Company. Realising that there is only one survival mantra – innovate or exit – Merrow took the challenge and is today the proud patent owner of perhaps one of the most revolutionary inventions in the stitching domain in the last decade, ActiveSeam®. Charlie Merrow, CEO of the company who spearheaded the innovation, shares with StitchWorld the story behind the company’s latest innovation, which is set to redefine Merrow’s standing as a pioneer in the sewing and apparel industries.

Merrow taking product development back to the sewing machines with ActiveSeam®

“The ActiveSeam® program delivers branded Merrow technology and sewing quality to retail products. Significantly, for the first time the ActiveSeam® program shows customers that seams can be monetized.” Charlie Merrow, CEO, MERROW

Before the advent of ActiveSeam® in 2012,176year-old Merrow had already earned a name for itself worldwide with its range of sewing machines for knitwear, woven, home textiles,non-woven, military clothing, babywear and lingerie. The company has a presence in more than 60 countries through its global network of agents and dealers.

When Charlie and Owen Merrow took over the company 10 years ago, he was faced with some hard facts,as both manufacturing and sewing machine production was now centred in Asia. “The real turning point came when a customer asked us to design a stitch for a shoulder seam, where if you have a backpack on it, it doesn’t leave a mark. An idea was sown of having a seam which is flat on both sides…

The Merrow machine model number - MB-4DFO, a flat overlock serging machine that sews three versions of the Merrow ActiveSeam® only possible on the machines manufactured by the company

…and thin at the same time.” The rest as they say is history. 

Sewn by the MB-4DFO flat overlock serging machine from Merrow, ActiveSeam® has been inspired from a butted seam but imbued with the strength and aesthetic advantages of interlock, flatlock and overlock seams. TheMB-4DFO is a two or three thread premier industrial serger that sews three versions of the Merrow ActiveSeam®. 

The two thread version of the seam is called ActiveSeam® Comfort and the three thread version of the seam is called ActiveSeam® Infused. The seam has been patented by Merrow and hence only possible on the machines manufactured by the company.

The ‘Comfort’ version of ActiveSeam® is 5/32 inch wide and suitable for medium weight performance fleece fabric, running jerseys andwool-based innerwear. A 3/32 inch wide version of ActiveSeam® Comfort is called ActiveSeam® Slim which is suitable for hiking pants made with merino wool and apparel made with technical textiles having utilitarian applications. Although the two thread ActiveSeam® Comfort is suitable for all kinds of knitwear applications, the three thread version has much more aesthetic appeal due to the introduction of a third thread. The top thread conceals the second thread beneath it when the seam is relaxed and reveals it when the seam is stretched. 

The third thread is on the inside of the seam and bounds the other two top threads together. Fabric is butted, not lapped nor bunched together, giving a flat, non- bulky and comfortable seam. “The possibilities are endless with such a seam structure as not only can you use different colour threads for enhancing the look of the seam, but also use threads of different properties, makes, structure and thickness for varied applications,” asserts Charlie.

The seams have been certified by third-party testing agencies as having 30% more strength across their width and 100% more stretch across their length, when compared to a regular flatlock (4 needles, 6 threads, ISO 607) sewn with like thread and fabric.

Even though the machine is revolutionary, Charlie soon realised that without the consent of the buyers no one would buy their machines. “When marketing my machines to the brands, I ran into a problem, people said it’s just a stitch, so a story was required to create need for the machines. That is when we branded the seam and the MB-4DFO, protected the Intellectual Property Rights of the innovation and went to the brands with samples of sewn products,” recalls Charlie, who has received an overwhelmingly positive response from active sportswear brands like Jockey, Adidas, Reebok
and Nike. “For the first time ever a machine supplier would be nominated by buyers and brands… We have reinvented the whole wheel,” adds an upbeat Charlie. At the upcoming Texprocess show in Atlanta, USA, Merrow will display its range of ActiveSeam® machines for heavy duty applications, completing its range for all knit applications. The machine is not applicable for woven products.

The company has setup a development centre in the USA called the Stitch Lab®, to which people can send their product and fabric samples for unravelling the possibilities with ActiveSeam®. The same service will be offered by the company for interested customers in Bangladesh and India through its trade partner Anil Anand, MD, HCA. “The manufacturers need to understand that we are not selling them automated machines which guarantee enhanced productivity and lower the requirement in manpower. What we offer is based on the core fundamentals of product development and both manufacturers and brands are able to modify, update, and create new patterns and products,” adds Charlie, emphasising that product development is the essence of any bleeding edge apparel manufacturer.

With such a revolutionary product at hand, all Merrow had to do was to choose the right partners as a representative for its products. “HCA has a 100 year history in the business of sewing machines, which makes them ideal partners for us. They would not just be involved in selling and servicing our machines, but rather developing products with customers in the Indiansub-continent, without any additional or hidden costs,” concludes Charlie

Taking Back Product Development - Merrow ActiveSeam in Apparel Online

As Merrow continues to increase its presence throughout the world, I thought I'd share a nice article featuring Merrow CEO Charlie Merrow and ActiveSeam. The article appeared in the April edition of Apparel Online Bangladesh and also calls out Merrow agent Hari Chand Anand & Co. who is helping spearhead ActiveSeam's proliferation in the Bangladeshi market. Enjoy.

Apparel Online, April 2014

First Look - The Merrow Booth (3915) at Texprocess Americas

Merrow is going to be at Texprocess America in Atlanta in May, and we thought we'd share some 3-D models of our trade show booth. Come by for a visit and have a look at our new machines, new stitches, and new solutions!

More Twitter

Blog Posts

MG 3U Now what

We just bought a merrow machine model mg 3u  now what, it didn't come with needles, instructions or what kind of thread to use. We will be using it to put an edge on patches that we presently embroider at home. Would somone be able to help us out. We are in Montreal Canada. I can be reached at

any help is greatly appreciated

Posted by Bob Lloyd on March 4, 2011 at 3:58pm — 1 Comment

New guy needs a hand

I am relatively new to the embroidering field but have been getting calls for patches now and then. I currently limit my patches to felt or similar material because it does not fray.

I recently purchased an old A3DW3 machine that, like most old merrow's, runs like a top. I hope to use it until I win the Lotto and can afford an MG-3U.

I personally like a Merrow stitch at the edge and am working towards that.

Question #1 is: How close can I get with the A3… Continue

Posted by Mike Rieker on November 19, 2009 at 12:52pm — 1 Comment


Posted by Craig Lee on March 2, 2009 at 5:30pm

Launching the site

Today we did the last of the heavy lifting on the community site. Hopefully all will enjoy.

Posted by charlie merrow on August 24, 2008 at 5:32pm


I have been surfing the world wide web and seen a lot of buzz surrounding the 18-E. For a regular crocheter like myself, I can't help but get excited about the possibility of Merrow going into production for this much anticipated release.

It is my hope that it will be released this fall so I can start my blanket business(finally! lol). I already have 5 orders for my football themed Eagles blanket, not to mention getting a head start on my homespun christmas gifts for friends, family… Continue

Posted by David Resenberg on June 9, 2008 at 1:50pm



SewCat - the Sewing Catalog Superstore!

more than 70,000 products for the textile industry!



Sewing Thread

Latest Activity

donna martin replied to donna martin's discussion m-2dnr-1 won't chain off
"So sad that no one at merrow will respond to my emails or to my question here on the forum, but you are very eager to call me to request that I send in my other merrow machines for your factory service . Last April I sent my m-2dnr-1 in for the…"
Jun 19
donna martin posted a discussion

m-2dnr-1 won't chain off

How do I get my m-2dnr-1 to chain off? When I stitch off the fabric the stitches immediately stop locking and start to unravel for about 1 1/2 inches. Any suggestions are appreciated.See More
May 13
sherley ortiz castro left a comment for james
"Donde puedo conseguir partes para la merrow"
Jan 15
Nancy Conway posted photos
Dec 18, 2013
Karla Adams is now a member of Merrow Community
Dec 18, 2013
Cynthia Valenzuela posted a discussion

Changing the feed cams on a MB-4DFO

I was wondering if anyone here has ever had to change the feed eccentrics on the active seam machine? I am currently running a 6-82-28 with a 6-82-32. When I sew stretch fleece, the seam comes out very wavy and doesn't lay flat. I am thinking I need to run two 6-82-32 to have the feed take up evenly without the stretch. Can anyone offer their opinion on what I am thinking or how difficult it may be to take on the task of changing these eccentrics out myself?Thanks See More
Nov 21, 2013
Cynthia Valenzuela updated their profile
Nov 20, 2013
Profile IconMiguel Silva, Kate Parsons, Krysti Emerson and 6 more joined Merrow Community
Nov 20, 2013
Gary LaGuardia replied to terry dolin's discussion adjust the feed on merrow a-3dw
"Sorry to hear that the A-3DW didn't work out, I was hoping I would be able to get mine to do the emblem edge as well.  30 Stitches/inch seems in the ballpark. I have seen people recommend 32-38, but have gathered that its mostly a factor…"
Nov 12, 2013
terry dolin replied to terry dolin's discussion adjust the feed on merrow a-3dw
"the cams were tight so i used an emery wheel and lowered the thickness a couple thousands, placed in machine it runs fine, but the cam is only a 30 so it sewed 30 stitches per inch, not what i was looking for so this machine and the other are going…"
Nov 8, 2013
Anne Burns is now a member of Merrow Community
Sep 6, 2013
ChrisAnne Shultz posted a discussion

Threading the A 3DW

Help! I have a new to me A3DW and do not have a manual. Please tell me how to thread this machine. I see the threading diagrams, but I have no idea which one I need.
Sep 2, 2013
ChrisAnne Shultz is now a member of Merrow Community
Sep 2, 2013
David Castle posted a discussion

Missing Loops

Hello Everyone,    I am the proud new owner of an MG3U for my embroidery business. It seemed to sew perfectly in the store, but since I have the machine home, I am having issues. I think I have the tensions set right, but it continues to miss loops of the cover thread.20130830_065416.jpg…See More
Aug 30, 2013
David Castle is now a member of Merrow Community
Aug 27, 2013
Gary LaGuardia replied to terry dolin's discussion adjust the feed on merrow a-3dw
"So have you gotten your machine working the way you want yet? I'd like to hear how your cams worked out. Did you have to go ahead and change the loopers to the ones you ordered or did the loopers in the machine work OK? "
Aug 2, 2013
Gary LaGuardia replied to terry dolin's discussion adjust the feed on merrow a-3dw
"Just sent a couple emails back and forth to your guy. His cams are also imported, so I'm going to wait & see how things work out for you. My machine has the A70-14 needle plate which is for a 1/8" border which is what I want. The…"
Jul 11, 2013
terry dolin replied to terry dolin's discussion adjust the feed on merrow a-3dw
"Hi Terry Here is what I got so far 77-mer looper at 35.75 94m looper 19.60 A70-15 plate 35.15 2 6-82-30 cams @ 11.75 This is all assuming that your machine is presently set up with a 1 needle carrier. You can tell it is so if your needle has a…"
Jul 11, 2013
charlie merrow left a comment for Tony Navarro
"Welcome to the Merrow Community! Let us know how we can help... Regards, Charlie Merrow"
Jul 11, 2013
Tony Navarro is now a member of Merrow Community
Jul 11, 2013

© 2014   Created by charlie merrow.

Badges  |  Report an Issue  |  Terms of Service