Reading Multi-Head Embroidery Machine Specifications Before You Enquire

Heads and needles: copies and colours

On a multi-head machine every head stitches the same design at the same time, so the head count tells you how many identical pieces come off each run. Machine builders publish the head count as part of the model: ZSK's RACER line, for example, is listed with 1, 2, 4, 6, 8 or 12 heads, and Tajima's TMCP-VF flat series with 4 to 20 heads depending on model.

Needles per head set how many thread colours can be loaded without re-threading. The same Tajima series is offered with 6, 9 or 12 needles; ZSK lists 12 needles on the RACER, 18 on the RACER II and 24 on the RACER XL. A listed configuration such as the nine-needle, 26-head arrangement in our directory is a long-bed machine built for volume in few colours, while the DM-1201 is a single-head, 12-needle machine. Count the colours in your typical design before comparing prices.

Head spacing and embroidery field

Head spacing (head interval, pitch) is the centre-to-centre distance between neighbouring heads. On a flat multi-head machine it limits how wide one design can be on each head. In Tajima's TMCP-VF table, the field width listed for each model equals its head interval: the 345 mm-interval models show a 680 × 345 mm field, the 400 mm-interval models 680 × 400 mm or 800 × 400 mm. ZSK offers RACER spacing of 400 mm or 495 mm and pairs it with a field depth of 500 mm or 700 mm, so spacing and depth are chosen together.

Watch for two kinds of field figure:

• Per-head field. The area each head can embroider for one piece. ZSK gives 700 × 700 mm per head for the RACER XL.
• Whole-machine field. On some machines the frame can run as one large piece across heads. ZSK gives the two-head RACER 2XL a maximum total field of 1,400 × 700 mm in a border frame.

A label alone may not say which is meant. The two-head family in our directory is labelled 500 × 800 mm without an exact model code or full specification table, so the usable field has to be confirmed. Even a published 1,200 × 500 mm area on a single head, as for the DM-1201, does not tell you whether your item can be framed and reached. Tajima notes that actual field and speed vary by item, model and conditions.

Ask for a dimensioned machine drawing and a written per-head field for the frame you will use. This is the same discipline described in comparing machine configurations rather than model names.

Flat, cap and tubular frames

"Flat" means a border or table frame for panels and garments laid flat. Cap and tubular work use other frames and operating modes. ZSK lists tubular and cap operation alongside border, cap, cylinder, pocket and trouser frames for the RACER.

In listed equipment, the DT-1501 is described for flat garment decoration and cap work with the appropriate setup, with 12/15-needle configurations, a 500 × 400 mm working area and separate maximum speeds for flat and cap embroidery. The CT embroidery series is a series of cap, garment and flat configurations rather than one machine with every attachment installed, and some of its cap-speed and geometry labels are inconsistent. The quotation must list which frames and drivers are included. Frames, hoops and clamps also belong on the spare list discussed under warranty, spare parts and after-sales terms.

Maximum speed versus real output

Maximum speed (stitches per minute, or rpm of the main shaft) is the fastest the head can stitch plain running work. ZSK publishes up to 2,020 stitches/min for the RACER but lists its sequin device at 1,000 stitches/min; Tajima publishes 1,100 rpm for the TMCP-VF. The GT2408, a vertical eight-head, 24-needle machine for large-width fabric, lists 1,500 rpm, but its key performance question is registration of repeats each time the fabric advances and is clamped again.

Real output per shift depends on more than speed. Dividing a design's stitch count by the maximum speed gives only the minimum stitching time. Colour changes, trims, slow stitch types, attachment work, thread breaks, framing and unloading all add time. Ask for measured cycle time on your design, not a speed figure.

Sequin, cording and other attachments

Attachments are separate devices fitted per head. ZSK lists sequin, pearl, cording and boring devices for the RACER. In our directory, the GY617-622 listing describes mechanically adjusted 3–7 mm sequins, left/right feeding devices, automatic feeding/cutting and pneumatic lift. Specify sequin sizes, left or right feed, single or double devices and how many heads carry them, and expect them to set the effective speed for the parts of a design that use them. Ask whether the attachment package changes the electrical data, and check it against the installed power and electrical supply you plan for.

Design files: DST and native formats

DST (Data Stitch Tajima) is a widely used machine format. According to University of Geneva's EduTech Wiki, a DST file contains stitch commands (normal stitch, jump, colour change, sequin mode) and a short header with label, stitch count, colour-change count and design extents, but no thread colours and no vector shapes. Native files from digitising software keep the objects (shapes, fill types, stitch order) from which stitches are generated; saving only to a stitch format discards that information.

For a sample, send the DST the machine will run, a colour sheet with thread references, and the native file if resizing or editing may be needed.

Writing the enquiry and the stitch-out test

Put these in the enquiry:

• Number of heads, needles per head and head spacing.
• Required per-head field for each frame type, and any whole-bed field.
• Frames, cap drivers and attachments included, with quantities.
• Controller, file formats and file loading method.
• Power supply, dimensions and weight.

Then plan a stitch-out on the offered configuration, following the approach in machine trials with your own material. Supply your garments or fabric, backing and thread whose count is stated in a recognised system, wound on the cones or packages you will use. Ask that all heads run, record the time from start to finished set, note every thread break and stop, and compare pieces from first and last heads for registration and density. The same measures can become pass criteria in a factory acceptance test.

A supplier's manufacturer profile helps separate makers from traders, and other models are listed under sewing and embroidery machinery, with needles, hooks and frames under parts and accessories.

Sources

1. "RACER – Multi-Head Embroidery Machines", ZSK Stickmaschinen GmbH, accessed 2026-11-04. View source
2. "TMCP-VF Multi-head Flat Type Standard Model" (product information page), Tajima Group, accessed 2026-11-04. View source
3. "Embroidery format DST", EduTech Wiki, University of Geneva (TECFA), accessed 2026-11-04. View source
4. "Embroidery format", EduTech Wiki, University of Geneva (TECFA), accessed 2026-11-04. View source