4181i-347

The specialist for top stitching and simultaneously trimming of lining with left post!

 

The proven machine-construction delivers a reliable performance in all variations.

In combination with a servo motor adapted at the machine head (optional) and the additional features short-end thread trimmer, auto back-tacking with man. tacking and auto foot-lift in electromagnetic version this model delivers an economic production tool.

 

Main features of these machines are the automatic pressure-free lubrication, the double needle-thread tension, the manual back-tacking via lever, a small vertical two-piece-hook without bobbin case, safety clutch as standard, exchangeable needle plate inserts and wheel feeders and an adjustment scale at the hand-wheel.

 

Unique is that this machines have a full synchronization of the feeding wheel and the top driven roller even during back-tacking. Stitch in stitch back-tacking provides highest seam quality and avoid material perforation.  

 

The separate driven knife mechanism from the bottom, ensures an accurate lining trimming while stitching.

 

We offer also a suitable grinding machine for the knives including holder.

 

Technical parameters:

Stitch type: 301 (Lockstitch)

Sewing speed: max. 3.500 rpm

Stitch length: max. 5mm

Presser-foot height: max. 12,5mm

Needle bar stroke: 40mm

Material thickness: max: 3mm

Needle size: NM60 – NM 140 (in 1/100mm)

Thread size: 80/3 – 20/ 3 (synth)

Roller presser diam.: 35mm (25 or 45mm optional)

Optional: roller presser in 25 or 35mm plain or rubber coated

Thread ends after cutting: 8-11mm

Speed of driven knife: 3.300 rpm

Max. thickness of lining: 2,5mm

Knife stroke (adjustable): 1,2 – 4,3mm

Distance needle to knife: 0,8; 1,2 or 1,5mm

 

All techn. specifications are related to the used sewing equipment and materials.