Viking Amber Air S 400 Air Threading Serger

Threading Made Simple with Air-Powered Loopers

The Husqvarna Viking Amber Air S 400 takes the frustration out of serger setup. One-touch air threading handles the loopers while the built-in needle threader covers both needle positions. Once threaded, the machine trims, overcasts, and finishes edges in a single pass with 15 stitch options for utility and decorative work.

One-Touch Air Threading

Thread the loopers with a single touch. The air-threading system pushes thread through the looper paths instantly, eliminating the manual threading that makes sergers intimidating. Setup takes seconds instead of minutes.

Built-In Needle Threader

The adjustable needle threader works with both needle positions. Guide the thread into place and let the threader do the work. No squinting at tiny needle eyes or threading by hand.

15 Built-In Stitches

Select from 15 stitches covering basic overlocking, rolled hems, flatlock, and decorative edges. The Amber Air S 400 trims the seam allowance, overcasts the edge, and creates a finished seam in one continuous motion.

Differential Feed Control

Adjust the differential feed to handle different fabric types. Prevent stretching on knits, avoid puckering on lightweight materials, and create gathered effects when needed. The feed ratio adapts to your fabric rather than fighting it.

LED Workspace Lighting

Bright LED lights illuminate the needle area and fabric path. The even lighting reduces shadows and eye strain, making it easier to guide fabric accurately and see stitch quality as you work.

Browse the complete Husqvarna Viking collection or view all sergers at Quality Sewing.