copy of Sewing machine 1-needle Jack A4F-H7 automatic lockstitch machine

Professional sewing machine - lockstitch machine - with automatic Jack A4F-H-7 functions for medium and heavy tailoring The latest model of professional lockstitch with a bottom feed with long piercing (7.0 mm) from the valued group of Jack sewing machines from the A4 series. A novelty is an additional height adjustment system for the presser foot in the range from 0 to 13 mm. It enables the automatic adjustment of the presser foot lifting height to the thickness and fluffiness of the sewn fabrics. This makes it much easier to maneuver the fabric under the presser foot. The lockstitch machine is designed for medium and heavy tailoring, it is a complete machine ready for immediate operation. A4F lockstitch machine is equipped with a number of automatic functions (thread trimming, needle positioning, programmable initial and final bartack, automatic foot lifting, electronic thread tension system), which significantly improve the comfort of use and ensure optimal conditions for working on high level. The A4F Jack lockstitch machine, compared to other automatic lockstitch machines, is additionally equipped with a stepper motor controlling the stitch length, which allows to determine the length electronically with an accuracy of 0.1 mm! The A4F jack also has the function of programming stitch sections, which allows obtaining effective decorative stitches. It has the ability to remember decorative sewing patterns, which can be individually configured from the panel. The use of these stitches does not have to be purely decorative! Stitches made by Jack A4F are also reinforced patterns, they significantly improve the strength of sewing - suggested use is, for example, sewing technical fabrics exposed to high stitch loads - sewing sails, tents, technical or work clothing. Jack lockstitch machines of the A4F series are the successor of the proven and appreciated by users Jack A4 and A4E models. A4F has voice notifications (ENG) and shorter and more accurate automatic thread trimming. The sewing machine has a built-in energy-saving AC SERVO motor (Direct Drive system) in the head, which ensures quiet and reliable operation, and its modern design allows for better ventilation of the engine, which translates into a longer service life of the machine. The lockstitch machine also has an improved structure of the transport and material clamping system, which provides a greater range of sewn material thicknesses.

Automatic thread cutting

We cut the threads quickly and easily. Completely automatically, great comfort to work with.

Needle positioning

Electronic needle positioning aligns the needle to the job.

Makes a bartack. start and end

The Jack sewing machine locks and secures the stitch against unraveling at the beginning and end of the stitch.

Programming decorative stitches

The machine has the ability to program sewing sections - patterns consisting of a lockstitch sewn in a straight line in a forward-backward sequence, which allows you to obtain effective decorative and reinforced stitches.

Control panel

The lockstitch operation is greatly facilitated by the control panel with a clear display or a button that resets the machine settings.

Energy-saving AC Servo 230V

Brushless, has many advantages over a traditional motor. It has low friction, is quiet, has a long life cycle, is smaller and lighter. Dedicated to most sewing machines. The most important advantage is low energy consumption (up to 71% less) compared to standard motors, the ability to easily adjust the speed and the use of a needle positioner. Built into the head of the machine - this technical solution (no suspended engine under the sewing machine head and drive belt) eliminates unwanted vibrations and increases the power of the machine.

LED lighting

The machine has modern LED lighting, which is as close to natural light as possible and does not tire the eyes.

Modern cooling system

Thanks to the modern structure, the system is much better engine cooling. Thanks to this, its service life is much longer.

Talking machine

The machine gives us verbal instructions, it just talks to us!

Additional function buttons

Very conveniently placed additional function buttons in a perfect place.

The machine is ready for immediate operation

Machine complete with matching table.