7 stitch programmes
2/3/4-thread sewing
Sewing with 1 or 2 needles
Max. sewing speed - 1300 stitches per minute
Stitch length adjustment 1-5 mm
Easy conversion to rolled hemming without changing the needle plate
Upper knife disengagement
Adjustable fabric cutting width 3.1-7.3 mm
Differential feed adjustment 0.5-2.2
Manual presser foot pressure adjustment
2-piece fabric feed system
Manual thread tension adjustment
Built-in lower looper threading aid
Colour-coded threading guide on the overlock body
Additional lower looper tension adjustment
Thread cutter on the overlock body
Easy-to-change presser foot
Waste tray included
Work area lighting
Strong and durable construction
2 years warranty
2/3/4-thread sewing
Sewing with 1 or 2 needles
Max. sewing speed - 1300 stitches per minute
Stitch length adjustment 1-5 mm
Easy conversion to rolled hemming without changing the needle plate
Upper knife disengagement
Adjustable fabric cutting width 3.1-7.3 mm
Differential feed adjustment 0.5-2.2
Manual presser foot pressure adjustment
2-piece fabric feed system
Manual thread tension adjustment
Built-in lower looper threading aid
Colour-coded threading guide on the overlock body
Additional lower looper tension adjustment
Thread cutter on the overlock body
Easy-to-change presser foot
Waste tray included
Work area lighting
Strong and durable construction
2 years warranty
| Functions | |
| 4-thread overlock | Yes |
| 3-thread overlock | Yes |
| 2-thread overlock | Yes |
| Rolled hem | Yes |
| Flatlock | Yes |
| Technical parameters | |
| Type | Overlock |
| Sewing speed | 1300 stitches per minute |
| Number of needles | 1-2 |
| Number of threads | 2, 3 or 4 |
| Number of stitch programs | 7 |
| Stitch length | 1-5 mm |
| Seam width adjustment | Yes |
| Differential feed | Yes |
| Differential feed ratio | 0.5-2.25 |
| Foot pressure adjustment | Yes (manual) |
| Fabric feed system | 2-piece |
| Retractable upper knife | Yes |
| Free arm | No |
| Rolled hem | Yes |
| Sewing knitwear | Yes |
| Threading scheme | Yes |
| Thread tension adjustment | Manual |
| Lower looper threading aid | Yes (built-in) |
| Air threading system | No |
| Built-in needle threader | No |
| Number of presser feet in the package | 1 |
| Extension table | Not available |
| Waste tray | Yes |
| Safety switch | No |
| Lighting | Yes |
| Number of LED lights | None |
| Warranty | 2 years |
Tags: JANOME 644D, Janome 644D, JANOME 644D overlock, JANOME overlock, 2/3/4 thread overlock