Jack A4B-AC 1-needle lockstitch machine - automatic

The Jack A4B-AC is a professional bottom-feed sewing machine designed for sewing light and medium materials. It's fully assembled and ready for immediate use, and its automatic functions, such as thread trimming, needle positioning, programmable start and end bartacks, and automatic presser foot lift, enhance user comfort and ensure optimal working conditions. The Jack A4B-AC also features a stepper motor, which allows for electronic stitch length adjustment with an accuracy of 0.1 mm, and a stitch segment programming function for creating striking decorative stitches. These patterns can be saved and individually configured from the control panel, and can also be used as reinforced stitches for improved stitching strength. The Jack A4B-AC features voice prompts in Polish. It also features an improved fabric feed and pressure system, which increases the range of fabric thicknesses.

Automatic thread trimmer

We cut threads quickly and easily. Completely automatic, providing tremendous convenience.

Automatic needle positioning

Electronic needle positioning positions the needle for operation.

Makes the starting and ending bolts

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

Automatic presser foot lift

A new, additional presser foot lift adjustment system, ranging from 0 to 13 mm, allows the automatic presser foot lift to be adjusted to the thickness and fluffiness of the fabric being sewn. This significantly simplifies fabric maneuvering under the presser foot.

Electronic regulation of sewing density

Highly accurate electronic sewing density regulation system with an accuracy of 0.1 mm and a maximum length of 5 mm

Talking Machine

A unique feature of the Jack A4B-AC lockstitch sewing machines is their voice synthesizer, which provides voice feedback in English. The voice messages significantly simplify and streamline the use of the many functions it offers.

Energy-saving AC Servo motor

Brushless, it offers many advantages over traditional motors. It has low friction, is quiet, has a long lifespan, is smaller, and lighter. It's suitable for most sewing machines. Its most significant advantages include low energy consumption (up to 71% less) compared to standard motors, easy speed adjustment, and the inclusion of a needle positioner.

Central lubrication

This lockstitch machine utilizes the traditional oil pan lubrication system. This central, open lubrication system ensures reliable and effective lubrication of the sewing machine's individual components.

I make decorative stitches

The lockstitch machine is equipped with a stitch section programming function, thanks to which it is possible to obtain effective and reinforced patterns consisting of a lockstitch stitch sewn in a front-back sequence.

Programming sewing parameters

We can easily program sewing parameters using three convenient buttons. These buttons allow us to perform bartacking, add a stitch, and sew a 1/2 stitch length.

LED lighting

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

The machine is included

The machine comes complete with a matching table.

Machine parameters:

- stitch length up to 5 mm,

- presser foot lifting height up to 13 mm

- operating speed up to 5500 punctures/min

- central lubrication

- needle system 16X231 (DBX1)

- table top 105 x 55 cm

- USB port

The machine is covered by a one-year warranty.

Standard equipment of the machine:

- machine head with built-in energy-saving motor

- high-quality table top

- table base with pedal

- drawer

- DBx1 needle installed + set of spares

- metal bobbin in the bobbin case + 1 spare

- user manual

* The manufacturer reserves the right to change equipment without prior notice.

We invite you to purchase sewing needles for various materials, additional bobbins, and presser feet for your machine. You can find everything in the "Accessories" category.