SIRUBA BH-9820 - is a computerized buttonholing machine with 1 needle and 2 threads.
The machine is capable of executing straight buttonholes or buttonholes with round head, the cut can be programmed to be executed before or after sewing. Optionally it is possible to sew round holes.
It has a control panel on which different stitch parameters can be programmed: button type, size and shape, cut, stitch speed.
Several types of buttonholes can be programmed in the machine's memory and can be sewn immediately without any mechanical adjustment, making it ideal for small series production where patterns are permanently changed.
Workspace is LED illuminated
The machine has a direct drive servomotor that works at 230V/50Hz
Features automatic thread cutting and automatic presser foot lifting
Maximum speed 2500 stitches per minute
Stitch lenght 0.5-2 mm
Button stitch width 1.5-4 mm
The length of the buttonhole with the hole is adjustable between 8-42 mm and the straight buttonhole is between 5-42 mm
Round holes can be made with 2, 4 and 5 mm diameter
Needle used DOx558
Presser foot lifting height 12 mm (optional 16 mm)
Requires compressed air supply from a compressor capable of delivering at least 40 liters of air per minute