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Bernina L850 Airthreader - For professional overlock seams

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Bernina L 850

The ultimate Overlocker

  • One-step BERNINA Air Threader
  • Extremely fast, precise and quiet
  • Convenient freearm
  • Total Stitch Control for perfect seams
  • Grand sewing space

BERNINA L 850 – A true masterpiece among sergers

Our Swiss engineers have created a masterpiece, which allows you to thread the machine even faster and more conveniently. Simply press the foot control and you're off!

"The ultimate overlocker."

As the designer of the brand “Jolijou”, Andrea Müller creates colorful jersey fabrics and loves bringing them to life in new projects using the BERNINA L 850 overlocker. In particular, the One-step BERNINA Air Threader and the fast sewing speed with perfect stitch quality win this mother of three’s admiration when projects have to be done on a limited schedule.



The One-step BERNINA Air Threader

  • Simple threading with air
  • Now, you're ready to sew
  • Imaging threading that is actually fun

The looper threads are magically moved through the machine by air with one simple step on the foot control. Now both hands are free to guide the threads. The L 850 automatically sets the loopers in the correct position of the air threader – no turning the handwheel or searching for the right position.



Sew in comfort

  • Raise and lower presser foot easily
  • Both hands free to guide the fabric
  • Easy access to the needles thanks to presser foot that swings out

With the BERNINA Free Hand System (FHS) you can raise and lower the presser foot with your knee. In addition, the presser foot easily swings out for convenient access to the needles.



Total Stitch Control for perfect seams

  • Individually adjustable settings for Total Stitch Control
  • Perfect for working with various fabrics and threads in any combination
  • Fully adjustable differential feed
The L 850 offers several settings for Total Stitch Control - all individually adjustable. The best part? You can change all of these settings while sewing - including the thread tension, cutting width, stitch length and Micro Thread Control (mtc).
Extremely fast, precise & quiet

Extremely fast, precise & quiet

  • Sew up to 1,500 stitches per minute
  • Strong, consistent and precise at any speed
  • Extremely quiet

Not only can you sew quickly, but you can also sew stitch-by-stitch, making the flawless production of precise lines and curves a simple process. Plus, you will enjoy how extremely quiet the BERNINA L 850 sews.


Quick threading

  • One-path, color-coded threading
  • Automatic Needle stop up function
  • Integrated Needle Threader
The integrated Needle Threader and automatic needle stop up function make threading the needles simple. You can easily change from an overlock seam to a rolled hem or flatlock seam in no time because the thread remains in the same threading path.


Grand sewing space

  • 5 5/8" right to the needle
  • Easy on/off extension table included
  • Convenient freearm
The space offered on the L 850 is generous by any definition. It has more room to the right of the needle and more work space height than any other BERNINA serger. Sew closed items with ease by simply sliding sleeves or cuffs over the convenient freearm.

Get a feel for this fantastic machine

Get a better feel for this incredible machine. Simply click the button below and you will see every stunning angle of the BERNINA L 850.

Features & Functions

Total number of stitches 18
One-step BERNINA Air Threader (for looper threads) Yes 
Freearm Yes 
BERNINA Free Hand System (FHS) with knee lifter Yes 
Easy to engage and disengage the knife from outside Yes 
Swing-out presser foot with auto swing back Yes 
Built-in needle threader Yes 
Automatic needle stop up Yes 
Micro Thread Control (mtc) Yes 
3– 9 mm overlock seam width Yes 
Sewing speed, stitches per minute 400-1500

Limited Warranty - Click here

Product brochure
 – All information at a glance

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Included Accessories

Unleash your creativity with the included accessories.

Standard accessories BERNINA L 850

Standard Overlock Foot #L10 (with Tape Guide) (L 850)

Suitable for overlocking projects where the fabric edge is cut and neatened in a single operation. The presser foot is equipped with an adjustable open tape guide.

Slide-on Table (L 850/890)

The Slide-on Table for the L 850/890 is used to enlarge the sewing area to the left of the sewing area. It enables easier guidance of large fabrics and a better view of the sewing project.

BERNINA Tweezers

BERNINA Tweezers allow you to thread your overlocker with ease and remove any remaining pieces of thread from the machine.

Brush (L 850/890)

This tool helps to remove dust and lint from the looper and stitch-plate area of your L 850 and L 890.

Screwdriver

The Screwdriver makes changing needles simple.

Spool Stabilizer (L 850/890)

The Spool Stabilizer prevents spools and cones of various sizes from vibrating at any sewing speed.

Overlocker Oil

Regular care ensures the flawless operation of the overlocker. Lubricating with this convenient Overlocker Oil is an important part of it. 

Accessories Box (L 850/890)

The large accessory box and the corresponding extension box provide storage space for L 850/ L 890 presser feet and accessories.

Knee lifter/Free Hand System (FHS)

The Knee lifter/Free Hand System (FHS) lets you raise the presser foot with your knee. Especially recommended for delicate fabrics.

Cut-offs Bin (L 850/890)

The Cut-offs Bin keeps the sewing table tidy. Simply click it on to the looper cover and dispose of fabric cut-offs immediately after cutting. 

Right seam guide (L 850/890)

The right seam guide helps to guide the fabric and ensures that it is cut evenly. 

Needle Threader/inserter (L 8 Series)

The Needle Threader/inserter makes it easy to hold, insert or remove as well as thread overlocker needles.