Comparison Leader VS 400D vs MerryLock 5550A

The general type of sewing machine, which determines its functionality and specific application.

— Electromechanical. The classic, simplest type of sewing machines: they do not have computer control, all operating parameters are adjusted mechanically, and their use is limited to the simplest types of seams.

- Computerized. Sewing machines equipped with built-in computers that control the sewing process. Thanks to this, they have a more extensive set of functions and are more precise in setting than electromechanical ones, although they cost accordingly. Note that in this case we mean exclusively computerized sewing machines; embroidery and sewing-embroidery machines are divided into separate categories (see the corresponding paragraphs).

— Embroidery. Such machines were initially intended only for embroidering patterns, and are practically not suitable for work outside this specialization (regular sewing, hemming). They have appropriate design features, are equipped with a hoop and embroidery feet, and are often equipped with both a set of built-in presets (for example, embroidering letters of the alphabet) and the ability to connect to a PC and download patterns.

— Sewing and embroidery. Machines that can be used for both sewing and embroidery. The design and sewing capabilities are similar to computerized...models (see the corresponding paragraph), but are complemented by an embroidery unit, hoop and other embroidery equipment. And the built-in capabilities usually include both basic embroidery elements (crosses, stars, satin stitch, etc.) and the ability to embroider using patterns downloaded from a computer. Such machines are very versatile, but in terms of specific capabilities they may be inferior to more specialized models.

— Overlock. A special type of sewing machine designed primarily for seaming and trimming the edges of materials. An overlocker covers the edge of the fabric with a special seam, which prevents fraying, fraying and deformation. One of the design features of such devices is the presence of several working threads, from 2 to 10 (most often 3 or 4).

— Coverstitching machine. Devices designed to create the so-called. cover stitch - a flat elastic seam that is most often used to hem the folded edge in knitwear, as well as in some types of joints. Such machines are not used for other purposes.

— Coverlock. Devices that combine an overlocker and a cover stitching machine in one housing. For more information about each of these varieties, see the corresponding paragraph. Here we note that a carpet lock is actually a universal tool for processing edges: it is capable of overcasting them, cutting off excess fabric and hemming the folded edge with a cover stitch. In addition, many modern carpet stitchers are also capable of stitching materials (mainly with a two-thread chain stitch).

The number of stitches that a sewing machine can sew. The larger this number, the more extensive the capabilities of this model, the wider the choice the user has; however, it wouldn’t hurt to clarify the specific range of supported stitches separately.

The fewest options - mostly up to 25 - are provided in electromechanical machines, as well as specialized devices such as overlockers and carpet lockers (see “Type”). In computer-controlled devices, the number of lines can be in the dozens, and some also allow you to download additional options from the computer.

The maximum stitch length that the sewing machine can sew. This parameter is important for working with dense thick fabrics: the stronger the fabric, the longer the seam used for it. Accordingly, the longer the stitch ( 5 mm or more), the better the machine is suitable for working with similar fabrics.

The maximum stitch width provided by a sewing machine.

Most modern sewing machines are capable of working not only with the simplest longitudinal seam (when punctures with a needle occur strictly one after another), but also with seams that cover a certain width - for example, zigzag and various decorative ones. And in overlockers, such opportunities are generally available by definition.

The larger the maximum stitch width, the correspondingly wider the machine’s ability to work with specific types of seams (all other things being equal). An indicator of up to 5 mm is typical mainly for entry-level devices, 5 - 7 mm - average, 7 mm and more - advanced.

Distance from the working surface to the foot in the uppermost position. Must be taken into account when working with thick fabrics.

The power consumed by the machine during operation. Usually, the maximum power value is indicated in the characteristics.

Most of the electricity supplied to the machine is consumed by the engine, so this indicator primarily describes the power of the engine. The higher this power, the faster the machine can work and the better it is suitable for working with dense fabrics. However, there is no strict dependence here, much also depends on the general specialization of the unit.