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JUKI MF-7000 Series - Bartacking Machine; LK-1900 S; LK-1904 F; LK-1901

JUKI MF-7000 Series
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LK-1900, 1904F, 1901, 1902 (June, 2001) 1/6
LK-1900S
LK-1904F
LK-1901S
LK-1902S
LK-1900
LK-1904F
Computer-controlled, High-speed Bartacking Machine
Computer-controlled, High-speed Belt-loop-attaching Machine
The machine's maximum sewing speed of 2,700rpm, far exceeds the speeds
of conventional bartacking machines, setting a new world record.
Marked reductions have been achieved in the time required to lift/lower the
presser foot, perform jumping, trim the thread, and operate the wiper, thereby
reducing the total cycle time and ensuring higher productivity.
The machine is provided as standard with 30 different patterns such as large
bartacking, small bartacking, and linear bartacking in accordance with the
needle entry pattern and number of stitches. The pattern that best suits the
current sewing process can be selected in just a few easy steps.
Sewing speed, the value set for the bobbin thread counter, and all other
settings for the machine functions can be adjusted with ease via the operation
panel.
As many as seven frequently used sewing patterns can be assigned to the
function keys for single-key calling. Cycle sewing patterns combining several
different sewing patterns can also be assigned to the function keys.
The machine head's slim shape provides a larger space under the arm for easier
handling of the material and continuous sewing works. The machine head is
directly driven by a compact AC servomotor, upgrading responsiveness and
achieving a higher stop accuracy. In addition, the machine is provided with a
needle bar reverse function for stepping with the needle raised to the highest
dead point. This permits easy setting of heavy-weight materials.
With its lengthwise sewing size of 30mm, the machine sews lengthwise bartacks
in processes to butt the elastic waist tape for shorts, attach the shoulder straps
to brassieres, etc. The machine is provided with a narrow-type work clamp
foot thats ideally suited to the sewing of foundation.
The machine can handle six different pattern types (29-, 39-, 45-, 58- and 75-
stitch bartacking and zigzag bartacking). The operator can select the
bartacking pattern best suited to the process used. In addition, the sewing
size can be changed with ease.
LK-1901
(for eyelet buttonhole)
The machine is provided with a material-drawing mechanism which draws the
right and left parallel portions of an eyelet buttonhole near to one another.
The machine performs bartacking with the right and left parallel portions of the
eyelet buttonhole drawn near to one another after the buttonhole is clamped
under the work clamp foot, thereby finishing highly durable and well-tensed
eyelet buttonhole.
The machine is provided with three different sewing patterns (21-, 28- and 36-
stitch bartacking) and enables easy switchover of sewing sizes. If the sewing
patterns are assigned to the function keys on the operation panel, the sewing
patterns can be called up or changed with single-key operation. The machine
sews the most optimally suited bartacks on eyelet buttonholes on the front
bodies of garments and, straight buttonholes that differ in stitch number and
size on jacket lapels, thereby improving the finished quality of sewing products.
The material drawing amount can be adjusted to 3mm at maximum.
The material drawing mechanism can be switched ON/OFF in accordance with
the setting of the memory switch. With these features, the material drawing
mechanism can be used with greater flexibility.
LK-1902
The machine is provided as standard with six different linear bartacking patterns.
Since the sewing size can be easily changed, the optimal number of stitches and
sewing size can be speedily selected according to the belt-loop width. If the
normally used patterns are assigned to the function keys, a desired pattern can
be called up or changed with single-key operation.
With its broadly curved feed bracket (presser arm), the machine permits easy
placement of the material to be sewn. The slimly shaped bed and head design
that allows free space under the arm demonstrates greater operability in handling
materials on the machine and continuous processes. These features contribute
substantially to increased productivity in belt-loop attachment processes.
(for lengthwise bartacking for foundation
with bartacking length of 30mm)
8

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