Janome MyLock 634D Serger

10″ X 11″ X 11-1/4″
5 mm

$500.00 $799.00

The Janome Mylock 634D is all about making serging fun, productive, and stress free. Everything from the tension to the threading is designed to make your serging experience user-friendly and efficient. With a name like Janome, you know you are getting a high quality machine built to last through every project you can imagine.

2, 3 and 4 Thread Compatible: The Janome Mylock 634D allows you to serge as narrow as 3.1 mm and as wide as 7.3 mm, and the stitch length can be adjusted between 1 mm and 5 mm.

Color Coded Thread Guide and Thread Chart: Janome designed its threading system to be as intuitive as possible.

Lower Looper Pretension Setting Slider : Switch from a standard overlock to a rolled hem by simply sliding the dial. No need to fuss with the tension or install a separate needle plate.

Max Speed 1300: At 1300 stitches per minute, this powerhorse will have you finishing twice as many projects in half the time.

Adjustable Presser Foot Pressure: This feature allows you to sew everything from faux fur to silky chiffon beautifully. Adjusting this setting will increase or decrease the amount of pressure exerted by the presser foot onto your fabric.

Easily Retractable Upper Knife: Being able to disengage the knife is especially helpful when doing decorative stitches, like flatlocking on hoodies, or when your seam allowance doesn’t need to be trimmed.

Waste Chip Box: It’s no secret that overlock machines make a huge mess. Keep your sewing space clear of trimmings with the Waste Chip Box. Easily attach the box to your machine, and watch as your trimmings are neatly collected in the box, instead of on your floor.

Snap-On Presser Feet Compatible: Not only are snap on presser feet easier to install, but they also tend to be less expensive than traditional presser feet.

Convertible Free Arm: The sewing bed is quickly converted to a free arm machine by removing the side insert. This is perfect for circular sewing, like cuffs, hems, and necklines.

Optional Bonus Bundle

Optional Bonus Bundle

The Bonus Bundle ($70 Value) includes a blindhem presser foot, a gathering presser foot, and a package of assorted needles.


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  • Differential Feed: 0.5 to 2.2
  • Adjustable Cutting Width: 3.1mm to 5.1mm
  • Max Stitch Length: 5mm
  • Max Stitch Width: 7.5mm

Manufacturer’s Warranty

  • 25-Year on Mechanical Parts
  • 5-Year on Electrical Parts
  • 1-Year on Labor

Included Accessories

  • Standard Serger Foot
  • Spreader
  • Tweezers
  • Needle Set
  • Upper Knife
  • Waste Chip Box
  • Needle Plate
  • 4 x Spool Nets
  • 4 x Spool Holders
  • Thread Stripping Discs
  • Needle Threader
  • Screwdriver Set (Small and Large)
  • Wrench
  • Oil

Optional Accessories

  • Beading Attachment
  • Gathering Attachment
  • Piping Foot 3/16″
  • Blind Stitch Foot
  • Cloth Guide
  • Piping Foot 1/8″
  • Taping Foot with Reel

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