Skip to product information
1 of 15

Bernette B64 Airlock Air Threading Serger

Bernette B64 Airlock Air Threading Serger

Regular price $1,499.00
Regular price $1,735.00 Sale price $1,499.00
Sale Sold out
Shipping calculated at checkout.
Free Shipping · Ships in 1–3 Business Days

Not sure this is the right machine for you?

Take the Quiz →
🎓 Lifetime Online Machine Classes

🎓 Lifetime Online Machine Classes

🔄 90-Day Exchange Policy

🔄 90-Day Exchange Policy

🎥 Live Video Chat Support

🎥 Live Video Chat Support

🧵 Education & Community Access

🧵 Education & Community Access

⭐ 40+ Years Serving Sewists

⭐ 40+ Years Serving Sewists

View full details

Product Information

bernette

64 AIRLOCK

Experience effortless overlock precision with the bernette 64 AIRLOCK Serger. Engineered for garment makers, activewear creators, and home sewists seeking professional seam finishes, the b64 AIRLOCK features 2-, 3-, and 4-thread overlock, flatlock, super-stretch, and rolled hem capabilities.

Equipped with Automatic Air Threading for instant looper setup, Micro Thread Control (MTC) for clean edge wrapping, the Free Hand System (FHS) knee lifter, a narrow free arm, 5 LED sewing lights, and a spacious slide-on extension table, this machine delivers flawless, professional serging performance every time.

bernette 64 AIRLOCK
2/3/4 Threads

Overlock, super-stretch, flatlock, and rolled hem stitch capabilities.

AIRLOCK System

One-touch air threading blasts thread through the loopers instantly.

MTC Tuning

Fine-tune looper thread volume to prevent looping or tunneling.

FHS Knee Lifter

Hands-free presser foot control for feeding bulky materials.

Automatic Air Threading on the bernette 64 AIRLOCK

Frustration-Free Setup

Automatic Air Threading

Engage the air connector switch and press a button to blast threads through internal looper tubes in seconds, cutting out one of serging's most tedious setup steps.

Quick Conversions

Color-Coded Thread Paths

Clear color-coded paths guide thread routing for quick 2-, 3-, or 4-thread conversions, making it easy to switch stitch types without guesswork.

Color-coded thread paths on the bernette 64 AIRLOCK
Micro Thread Control on the bernette 64 AIRLOCK

Precision Finishing

Micro Thread Control (MTC)

MTC lets you adjust looper thread volume with a simple turn, ensuring stitches wrap cleanly around fabric edges without puckering or loose loops.

Fabric Handling

Differential Feed Dial

Differential feed eliminates waviness on stretch knits, keeping seams flat and professional-looking on even the trickiest materials.

Differential feed dial on the bernette 64 AIRLOCK
Free Hand System knee lifter on the bernette 64 AIRLOCK

Ergonomic Control

Free Hand System (FHS) Knee Lifter

Lower and raise presser feet hands-free using the FHS knee lifter, keeping both hands on bulky materials as you feed them through.

Project Flexibility

Free Arm & Slide-On Table

Convert to the narrow free arm for sleeve cuffs, or attach the expansive slide-on table to support heavy projects and long seams — the same machine adapts to both small and large-scale work.

Free arm and slide-on table on the bernette 64 AIRLOCK
5 LED workspace lights on the bernette 64 AIRLOCK

Lighting & Organization

5 LED Workspace Lights & Onboard Tool Storage

Five bright LED lights illuminate the entire work bed, while onboard storage under the looper cover keeps essential tools organized and easily accessible between projects.

Cleanliness

Built-In Cut-Off Waste Bin

Trimmed fabric edges collect directly in the built-in cut-off waste bin as you serge, keeping your workspace clear without extra cleanup between seams.

Built-in cut-off waste bin on the bernette 64 AIRLOCK
Cutting width dial and rolled hem lever on the bernette 64 AIRLOCK

Precision Adjustments

Cutting Width Dial & Rolled Hem Lever

The cutting width dial lets you fine-tune how much fabric the knives trim as you serge, while the rolled hem lever converts your machine for narrow, professional rolled hems on napkins, scarves, and delicate edges.

Key Features

  • Stitch Versatility: 2-, 3-, and 4-thread overlock, super-stretch, flatlock, and rolled hem stitch capabilities.
  • Air Threading: Automatic system threads loopers instantly with the push of a button.
  • MTC: Micro Thread Control knob fine-tunes looper thread volume to prevent edge looping or tunneling.
  • FHS Knee Lifter: Free Hand System for hands-free presser foot control on bulky materials.
  • Free Arm: Integrated narrow free arm for effortless stitching on cuffs, sleeves, and tubular garment hems.
  • Extension Table: Spacious slide-on table included for extended support on wide fabrics and long seams.
  • Convenience: Color-coded thread paths, 5 LED lights, differential feed dial, and built-in cut-off waste bin.
  • Air Threader Switch: Dedicated connector ON/OFF switch plus onboard accessory storage under looper cover.

Included Accessories

  • Slide-on Extension Table
  • Free Hand System (FHS) Knee Lifter
  • Cut-Off Waste Bin
  • Needle Pad
  • Thread Cutter
  • Onboard Tool Storage
  • Foot Control
  • Power Cable

Details

Product Details

Stitch Capabilities 2, 3, and 4-Thread Overlock, Super-Stretch, Flatlock, and Rolled Hem Stitches
Threading & Tension Systems Automatic Air Threading (Looper Connector Switch) / Micro Thread Control (MTC)
Workspace & Ergonomics Narrow Free Arm / Free Hand System (FHS Knee Lifter) / Large Slide-On Extension Table Included
Illumination & Adjustments 5 Bright LED Sewing Lights / Differential Feed Dial / Cutting Width Dial / Rolled Hem Lever
bernette warranty

bernette Warranty Coverage

The bernette 64 AIRLOCK is backed by bernette's warranty coverage, giving you confidence in your investment.

  • Mechanical Components — 10-year limited warranty
  • Electrical Components — 2-year limited warranty
  • Select Models — up to 4-year coverage available

bernette's warranty covers manufacturer defects in materials and workmanship. Normal wear items (needles, belts, light bulbs) are excluded. Must be purchased from an authorized bernette retailer — registering your product is strongly recommended to avoid needing the original receipt for service.

Why buy from us

Why Buy From Us

When you buy from Sew It Online, you're covered — before, during, and after the sale.

  • Real Support When You Need It — call us first. Our techs and education specialists solve a lot over video, find you a local repair shop, or walk you through shipping it back. Just keep your box.
  • Warranty Valid at Any Authorized Dealer — your coverage travels with you. Take your machine anywhere for service, no questions asked.

Plus, every machine purchase includes access to our full education library — see the Education tab.

Education included

What Education Is Included

Every machine purchase includes access to our full education library:

  • ✂️ Sew What's Possible Challenge — start sewing real projects fast.
  • 📚 Beyond The Basics — level up your technique.
  • 🧵 Machine Maintenance Course — keep your machine running right.
  • 🏆 From Box to Confidence — sewing the same day it arrives.

Questions

Frequently Asked Questions

What can the bernette 64 AIRLOCK do that a regular sewing machine can't?
The b64 AIRLOCK is a dedicated serger — it trims, finishes, and stitches seam edges in one pass using 2, 3, or 4 threads, producing the professional overlocked hems you'd see on ready-to-wear garments, plus super-stretch, flatlock, and rolled hem capabilities.
How is the b64 AIRLOCK different from the bernette 68 AIRLOCK?
The b64 AIRLOCK is a simpler, pure overlock serger with 2-, 3-, and 4-thread capability, while the b68 AIRLOCK adds coverstitch, chainstitch, and 5-thread combo stitching for a wider range of finishing techniques.
How does Automatic Air Threading work?
Engaging the air connector switch and pressing a button blasts thread through the internal looper tubes in seconds, eliminating one of the most tedious and error-prone parts of setting up a serger.
Can the b64 AIRLOCK handle stretch knits?
Yes. The differential feed dial eliminates waviness on stretch knits, while Micro Thread Control (MTC) fine-tunes looper thread volume so stitches wrap cleanly without puckering or loose loops.