Coverlock machine
Also known as: Coverstitch machine, Cover hem machine, Interlock stitch machine
Sewing machine with multiple needles producing parallel top-side rows and a looper thread underneath; typical for elastic hems on jersey.
Description
The coverlock machine (also coverstitch, cover hem) uses two to four needles plus a lower looper to form a special stitch: parallel straight rows on the top of the fabric and a criss-crossing looper thread on the underside, forming a cover or overlock stitch. The seam is highly stretchable and flat.
Coverlocks are standard in industrial production of T-shirt hems, sleeve cuffs, sweatpants waistbands, hoodie hems and underwear – wherever an elastic, flat and neat-looking seam is required on stretch fabrics such as jersey, interlock or rib. Pure coverlocks (without edge trim) differ from combo machines that also do overlock.
- 2-needle cover (twin needle cover): two visible parallel rows
- 3-needle cover: three visible rows, wider hold (sweatshirt cuffs)
- Industrial models: Pegasus W664, Kansai Special, Yamato, Juki MF series
- Needle spacing typically 3, 4.8 or 6.4 mm (1/8", 3/16", 1/4")
Properties
| Needle count | 2 to 4 needles |
|---|---|
| Stitch | Coverstitch (flat + stretch) |
| Application | T-shirt hems, sleeve cuffs, waistbands |
| Needle gauge | 3 / 4.8 / 6.4 mm |
| Manufacturers | Pegasus, Kansai Special, Yamato, Juki |
Related product categories
Sources & references
1- Wikipedia: Coverstitch Wikipedia — Freie Enzyklopädie https://en.wikipedia.org/wiki/Coverstitch
