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   600 Series

MO-655 MO-654DE MO-644D MO-623

Sewing Speed

1500rpm

1500rpm

1500rpm

1500rpm

Number of threads

2/3/4/5

2/3/4

2/3/4

2/3

Household Needle

Yes

Yes

Yes

Yes

Overlocking Width
By Needle

Chain: 10mm
Left: 6mm
Right: 4mm
Rolled: 2mm

Left: 6mm
Right: 4mm
Rolled: 2mm

Left: 6mm
Right: 4mm
Rolled: 2mm

Standard: 4mm
Rolled: 1-1.5mm

Stitch Length

1-4mm

1-4mm

1-4mm

1-4mm

Differential Feed

0.7-2.0 Ratio

0.7-2.0 Ratio

0.7-2.0 Ratio

-----

Built-in Rolled Hem

Yes

Yes

Yes

Yes

Flatlock

Yes

Yes

Yes

Yes

Micro Safety Switch Yes Yes ----- -----

Presser Foot Lift

5mm

5mm

5mm

5mm

MO-655

MO-654DE

MO-644D

MO-623

Chain Stitch

Yes

-----

-----

-----

5-Thread Safety

Yes

-----

-----

-----

4-Thread Overlock

Yes

Yes

Yes

-----

3-Thread Flatlock

Yes

Yes

Yes

Yes

3-Thread Narrow
Overlock

Yes

Yes

Yes

Yes

3-Thread Overlock

Yes

Yes

Yes

Yes

3-Thread Rolled Hem

Yes

Yes

Yes

Yes

2- Thread Rolled Hem

Yes

Yes

Yes

Yes

2-Thread Overcast

Yes

Yes

Yes

Yes

3-Thread Frill/Diff Feed

Yes

Yes

Yes

-----

Adjustable Stitch Length

Yes

Yes

Yes

Yes

Heavy Duty Knife System

Yes

Yes

Yes

Yes

Lower Knife Adjustment

Yes

Yes

Yes

Yes

Automatic Rolled Hem

Yes

Yes

Yes

Yes

Sewing Width Gauge

Yes

Yes

Yes

Yes

Color Coded Threading

Yes

Yes

Yes

Yes

Differential Feed

Yes

Yes

Yes

-----

Lower Looper Threader

Yes

Yes

-----

-----

Chain Looper Threader

Yes

-----

-----

-----

2/3 Thread Converter

Yes

Yes

Optional

Optional

     
 
 
 
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