bernette 68 AIRLOCK review

The bernette 68 AIRLOCK is a mechanical overlock/coverstitch combination for people who need more than a serger edge finish. It has separately configured overlock, coverstitch, chainstitch, and combination stitch patterns. The crucial limit is what it is not: there is no ordinary lockstitch setup for standard straight seams, zigzag, or buttonholes. Think of it as a garment-finishing machine alongside a regular sewing machine, not as a replacement for one.

Decide which of its modes you will actually use

In overlock mode, the knife trims the fabric edge as the needles and loopers join and finish it. The stitch list includes two-, three-, and four-thread overlock arrangements, rolled hems, flatlock, and a five-thread safety stitch. Coverstitch and chainstitch mode disables the upper looper and changes the insert so you can hem, topstitch, bind, or join fabric without cutting the edge. Combo patterns use overlock and chainstitch together for a reinforced seam. Although the machine offers all of these jobs, you must change settings and components when changing modes; consult the stitch chart, rethread or reposition as directed, and sew a test piece before committing to a garment.

The 31 stitch patterns are not 31 variations of a conventional sewing-machine stitch selector. The product is specialized around knit hems, edge finishing, stretch seams, and decorative serger or coverstitch work. The 130 mm opening to the right of the needle gives room to support a bulky garment during coverstitching. The slide-on table adds work support, while the freearm setup is useful around cuffs and other tubular pieces. It is not an embroidery system or a quilting bed.

Settings and threading still require judgment

The looper air threader is the standout convenience: it sends a prepared looper thread through its tube after you correctly set the threading connection and handwheel position. Needle threads remain manual. Color-coded guides reduce confusion, but the manual's stitch charts, tension wheels, presser-foot pressure, knife position, and needle placement still have to agree with the selected stitch. Waxed or coated thread may leave material in the air tubes and is specifically cautioned against. Bulky or decorative thread is a material choice to test with the intended stitch rather than a guarantee that every thread will feed correctly.

Micro Thread Control lets you trim the amount of looper thread wrapping the edge, and differential feed spans 0.6 to 2.0. Those controls can help with loop balance, puckering, waves, or intentional gathering, but they do not remove the need for a scrap test. The manual explains how a small change in differential feed affects knits and woven fabrics. Maximum speed is 1,300 stitches per minute; the foot controller, rather than a separate documented speed cap or start/stop routine, controls operation. The manual lists a manual thread cutter, so do not treat this model as having an automatic cutter.

Standard package and Maker comparison

The standard b68 AIRLOCK package is listed with the combined presser foot, knife and coverstitch inserts, slide-on table, freearm cover, knee lifter, spool stand, decorative-thread guide, needle set, tweezers, and CS Lock tool. Its extension table and knee lifter support larger projects and hands-free presser-foot lifting. The b68 Maker edition uses the same underlying b68 stitch platform but adds an exclusive finish, two fabric guides, six specialty presser feet, and a mini vacuum cleaner. That difference matters if you want the extra feet for blind hems, elastic, piping, gathering, or decorative work; it does not add a new stitch mode. See the focused b68 AIRLOCK vs Maker package guide before treating the names as interchangeable.

The manual gives a machine weight of 8.9 kg, body dimensions of 43 × 27 × 29 cm, 130 mm needle-to-right workspace, and a maximum fabric thickness of 5 mm. With the table and cut-offs bin, the listed envelope grows to about 59 × 40 × 29 cm. The machine takes ELx705 needles and uses a U.S. 120 V / 80 W supply according to the current English manual. It needs regular lint cleaning and manual oiling at the specified looper joint. The knife, needles, and loopers are moving parts, so mode changes and service work need to follow the manual's switch-off and unplug instructions.

Who should shortlist it?

Shortlist the AIRLOCK if your wardrobe projects need both a true serger seam and a stretch coverstitch hem, and you are comfortable learning several threading and stitch setups. It can reduce the number of separate finishing machines, but that convenience comes with conversion work and a sizable table footprint. If you only need edge finishing, the b64 AIRLOCK is the more focused overlocker in the same bernette family. If coverstitch or chainstitch is your only need, compare the b62 AIRLOCK. If you need ordinary construction seams, start with a standard sewing machine and add the serger only if edge finishes justify it.

This assessment is based on the exact current U.S. product page, linked English manual, and 2026 U.S. b60-series brochure, not hands-on testing. Confirm the standard package contents and condition with the seller; the manufacturer says accessory components can vary across countries and does not establish current stock for every retailer. The exact image is the standard b68 AIRLOCK model with its dark control panel, not the special Maker finish.

Sources: exact U.S. bernette 68 AIRLOCK page, official support page, the March 2026 English b68 manual, and the 2026 U.S. bernette 60-series brochure.