–
The use of step motors confers great versatility. No use of control
cams.
–
One-pedal operation for the following functions:
- close/open clamps
- switching on the sewing process
- rapid halt with needle lift
–
Pneumatically-operated thread-trimming system with short drive
distances for precise operation.
–
Pneumatic buttonhole slit.
–
Central oil-wick lubrication from two oil reservoirs.
–
Simple cutting-block replacement.
–
Seam-width alteration in the cross tack.
–
The special design of the machine arm permits the use of a
different material holder (optional extra) enabling the material to be
placed lengthwise.
–
Smooth design with casing. A gas-pressure spring helps to swing
the machine up and ensures that the head does not swing down
too quickly.
–
Vertically-operating cutting-block holders mean that no finishing-off
work is necessary even with different cutting-block heights.
–
After the material has been released a display setting enables the
cloth carrier plate to move to the starting position for the next
buttonhole, which improves visibility for material positioning.
Controller
–
A counter, shown in the display, counts the number of buttonholes
sewn.
–
A number of parameters can be set on the BF 2A operating panel,
depending on the subclass and buttonhole shape. These include
the following:
- with or without eye
- speed max. 2200 rpm
- buttonhole length, various ranges depending on the subclass
- cut before or after sewing
- no cutting
- stitch count in the eye
- stitch distance
- taper tack overlap
- taper tack length
- overlap in round tacks and eyelets
- overlap in the round tack
- number of stitches in the round tack
- stitch distance in the cross tack
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