4
2.3.1 Technical data for subclasses
Subclasses
667-180010
667-180030
667-180112
667-180132
667-180312
667-180332
Type of stitch Backstitch 301
Looper type horizontal, XL large, bobbin Ø 26 mm X X X
Looper type horizontal, XL oversized, bobbin Ø 32 mm X X X
Electromagnetic thread trimmer X X X X
Electropneumatic seam bartacking and sewing foot lift X X X X
Switchable thread tension XX
2 stitch lengths, can be switched electropneumatically X X
2 stroke heights with knee switch, can be switched elec-
tropneumatically
XX
Integrated sewing light XX
Number of needles 1
Needle system 134-35
Max. needle size [Nm] (depending on sewing mechanism) 80-
150
100-
170
80-
150
100-
170
80-
150
100-
170
Max. thread thickness [Nm] 80/3-
15/3
80/3-
10/3
80/3-
15/3
80/3-
10/3
80/3-
15/3
80/3-
10/3
Looper thickness [Nm] 100/
3-20/
3
100/
3-15/
3
100/
3-20/
3
100/
3-15/
3
100/
3-20/
3
100/
3-15/
3
Stitch length forwards/backwards [mm] 9 / 9
Max. stitch rate [rpm] 3000
Speed at factory setting [rpm] 3000
Max. sewing-foot stroke: [mm] 9
Max. height of lifted sewing feet [mm] 20
Operating pressure [bar] 6 6 6 6
Air consumption [NL] 0.7 0.7 0.7 0.7
Dimensions [mm] length / width / height (with attached
Efka DC 1550)
630/ 255/ 420(630/ 290/ 420)
Weight [kg](with attached Efka DC 1550) 50(54)
Rated voltage [V/Hz] depending on motor package
Rated voltage at factory setting [V/Hz] depending on motor package
Power rating [kVA] depending on motor package
