Overlock Sewing Machines

 

K Series

Cylinder Bed Overlock Sewing Machine

 

EF3-K11
Sub-class

-02-3
4
5

-04-3
4
5

-12-3
4
5
-52-4
Materials Thin
Medium
Heavy
Extra heavy
Thin/Medium
(Blind hemming)
Thin/Medium
(Elastic tape
attaching)
No. of needles 1 1 1 1
No. of threads 3 3 3 3
Needle gauge (mm) - - - -
Stitch width (mm) 3,4,5 3,4,5 3,4,5 4
Max. stitch length (mm) 0.8 - 3.7 0.8 - 3.7 0.8 - 3.7 0.8 - 3.7
Differential ratio 0.8 - 1.8 0.8 - 1.8 0.8 - 1.8 0.8 - 1.8
Height of presser foot (mm) 5 7 5.5 5.5
Pitch of feed dog (mm) 1.6 1.6 1.6 1.6
Type of feed dog (Standard) 3-Row 3-Row 2-Row 3-Row
Needle size (DC x 27) 9 11 9 9
Max. speed (rpm) 8,500 6,500 8,500 7,000
Looper locus Standard lift Super high lift Standard lift High lift
Attachment Blind hemming ruler MC3 device

 

EF3-K21
Sub-class

-03-5
6
7

-04-5
6
7

-92-4
5

Materials Medium / Heavy Heavy/Extra heavy Thin/Medium
(Versatile sewing)
No. of needles 2 2 2
No. of threads 4 4 4
Needle gauge (mm) 2 2 2
Stitch width (mm) 5,6,7 5,6,7 4,5
Max. stitch length (mm) 0.8 - 3.7 0.8 - 3.7 0.8 - 3.7
Differential ratio 0.8 - 1.8 0.8 - 1.8 0.8 - 1.8
Height of presser foot (mm) 5.5 7 5.5
Pitch of feed dog (mm) 1.6 1.6 1.6
Type of feed dog (Standard) 3-Row 3-Row 2-Row
Needle size (DC x 27) 9 11 9
Max. speed (rpm) 7,500 6,500 8,000
Looper locus High lift Super high lift Standard lift
Attachment Cloth plate
Blind hemming ruler
 

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