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Create a wide range of cover stitches on many types and weights of fabric for both decorative and constructive applications with the CV3440 Cover Stitch machine. The cover stitch will appear on the bottom side of the fabric while a top stitch will show on the top as you sew hems or add decorative stitching. With modern convenient features such as a color-coded thread guide and a one-touch lever tension release for easy fabric removal, you’ll be able to add unique decorative stitches to all your projects.

  • Tri-cover (6mm), Wide Cover (6mm), Narrow (3mm) cover and chain stitching capacity
  • One-touch lever tension release for easy removal of fabric
  • Free Arm for easier sewing of necklines and cuffs
  • Bright LED Lighting - cooler and energy saving
  • Thread Cutter for convenience and added efficiency
  • Color-coded threading guide & Easy to follow lay-in threading
  • Differential fabric feed for better stitch quality
  • Dial adjustments for stitch length conveniently found on right hand side
  • Presser foot pressure adjustment dial

    Optional Accessories:
  • SA221CV, SA222CV and SA223CV which are available for current 2340CV can be used for both CV3440 and CV3550.
  • Current SA224CV will converted to SA230CV exclusively for new cover stitch models.
  • And SA231CV will be established exclusively for new cover stitch models CV3440 and CV3550.

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  • US Warranty 25 years head, 5 years electronics, 1 years labor
  • Extended US Warranty: Extended Warranty Available
  • Non-US Warranty: 30 days parts and labor

Sewing Features

  • Lighting LED
  • Maximum Sewing Speed (Stitches Per Minute) 1,000 SPM
  • Feed Dog
  • Stitch Width (mm) 3.0 - 6.0mm
  • Stitch Length (mm) 2.0 - 4.0mm
  • Presser Foot Pressure Adjustment

 Serger Features 

  • Cover Stitch
  • Differential Feed 0.7 - 2.0
  • Underlooper Threader



  • Machine Dimensions (H x W x D) 16" W x 12" H x 14" D
  • Machine Weight 16.75 lbs.
  • Shipping Dimensions (H x W x D) 17.72" x 14.96" x 19.29"
  • Shipping Weight 22.71 lbs.
  • UL/CSA Listed

 Serger Warranty Statement

Included Accessories
Carton Contents
  • Accessory Storage Accessory Box
  • Included Accessory Feet Clear foot
  • Other Included Accessories "Soft Cover, Thread Net (4), Thread Spool Cap (4), Cleaning Brush, Hexagonal Driver, Needle Set (130/705H) #90, Attachment Screw, Spool Mat (4), Foot Controller, Instructional DVD"
Other Images

icon Decorative bottom coverstitch showing on top

icon Convenient built in carrying handle

icon Front door opens to easily tread single looper.

icon Four stitch types from bottom cover stitch and straight chain stitch.

icon Comparison chart

icon 3 needle threads plus 1 looper thread

icon Fabric pressure adjustment to prevent ply slippage

icon Brother CV3440 Single Sided Cover Stitch, 6.1 x 3.9 Workspace, 4 Stitches