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Computer-controlled, High-speed Shape-tacking Machine
LK-1910
LK-1920(with
intermediate presser)
Every product in the LK lineup is provided with high-speed
sewing capability and advanced features.
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CATALOG 
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| LK-1910 |
LK-1920 |
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Features
The
machine runs at a sewing speed of 2,500rpm ––––
Faster than any other shape-tacking machine anywhere
in the world.
In addition, the machine is fully equipped with
state-of-the-art features such as a higher presser
foot lift, a double-capacity shuttle hook, and a
direct-control machine head that ensures quick response
and an accurate stop position. The top model in
the LK series, the LK-1930 is JUKI’s first
shape-tacking machine to incorporate a main unit
input function equivalent to that equipped in our
automatic sewing machines. These rich features support
the machine’s high-speed sewing performance
and increased productivity. With its large sewing
area that matches a wider range of use, its hand
pulley, and its highly operable and easy-to-understand
operation panel, the machine delivers to the user
dramatically improved operability.
The LK-1910 Series shape tacking lineup is on the
cutting edge –––– a pioneer
in a new era of shape tacking.
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| LK-1910S (Standard) |
LK-1920S (Standard) |
LK-1920H (For heavy-weight
materials) |
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Higher
productivity. |
The
machine achieves a maximum-grade sewing
speed of 2,500rpm.
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The machine can shape
tack at a maximum sewing speed of 2,500rpm,
dramatically reducing the cycle time.
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| Fewer
bobbin thread changes. |
| Equipped as standard
with a double-capacity shuttle hook
that reduces the frequency of bobbin
thread changes, the machine spares you
troublesome bobbin thread works. This
is a particularly great help when sewing
with lower-count threads. |
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Excellent
sewing capabilities. |
The
machine can use a wider range of thread
counts than conventional machines.
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| With this feature, the LK Series models
provide upgraded sewing capabilities
such as improved responsiveness to heavy-weight
materials. Select either the S type
(standard type) or H type (for heavy-weight
materials) to suit the use of your machine. |
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Improved
responsiveness and operability. |
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| Sewing
area that matches a wider range of applications. |
| The machine has a wide
sewing area: 60mm (length) by 100mm
(width). With this large sewing area,
the machine easily adapts to the sewing
of curtain pleats, the finishing of
waistband ends for jeans, label attachment,
and many other sewing works. |
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Fully
equipped easy-to-use operation panel
[LK-1910, -1920]
With its automatic correction feature,
the machine can enlarge/reduce patterns
without deforming them. |
| Settings for machine
functions such as the sewing speed and
bobbin thread count can be easily adjusted
via the operation panel, and cycle sewing
programs for the production of combined
patterns can be entered. |
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Intermediate
presser that securely clamps the material
[LK-1920, -1930] |
The machine is provided
as standard with an intermediate presser
to prevent the material from flopping,
thereby promising beautiful seams.
Since height and stroke of the intermediate
presser can be adjusted, quick responsiveness
to changes in material thickness or
the number of layers of materials is
ensured. |
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Excellent
operability. |
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| Higher
lift of the presser foot. |
| With an increased maximum
lift of the feeding frame (22mm for
the magnet-driven feeding frame and
25mm for the pneumatic-driven feeding
frame), the machine ensures easy placement
of heavy-weight materials. |
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feeding frame type can be selected to
match the use of the machine in your
work. |
Two different feeding
frame types are prepared; the monolithic
type (magnet-driven) and the separately
driven type (pneumatic-driven). Select
the type which best suits your work
and the machine application.
With the monolithic type you can lift/lower
the feeding frame using a manual pedal*
by controlling the pedal pressure.
*The manual pedal is optionally available.
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machine head is designed for improved
operability. |
| The hand pulley is located
at the machine arm unit to allow the
operator to visually check the needle
entry and needle-to-hook timing with
ease. |
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The machine is provided
with a needle bar reverse rotating function.
This permits the machine to stop with
the needle rested at the highest dead
point to allow a heavy-weight material
to be placed on the machine easily. |
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| Upgraded
responsiveness, low vibration, and low
noise create a comfortable workplace. |
With its direct-drive
machine head (with no belt) directly
joined to a compact AC servomotor, the
machine provides improved responsiveness
and upgraded stop accuracy.
Vibration and noise are reduced even
during high-speed operation, thereby
achieving a comfortable working environment. |
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Specifications
| MODEL
NAME |
LK-1910S |
LK-1910H |
LK-1920S |
LK-1920H |
LK-1930S |
LK-1930H |
| Application |
Standard |
For heavy-weight
materials |
Standard |
For heavy-weight
materials |
Standard |
For heavy-weight
materials |
| Max. sewing speed |
2,500rpm
(when stitch length is 3mm or less) |
| Sewing area |
60mm
(L) x 100mm (W) |
| Stitch length |
0.1~10mm |
0.1~12.7mm |
| Needle bar stroke |
41.2mm |
| Lift of the feeding frame |
Max.
22mm (electromagnetic), Max. 25mm (pneumatic) |
| Lift of the intermediate
presser |
— |
18mm |
| Stroke of intermediate
presser |
— |
Standard
4mm (0mm and 4~10mm) |
| Needle (at the time of
delivery) |
DP x 5(#14) |
DP x 17(#18) |
DP x 5(#14) |
DP x 17(#18) |
DP x 5(#14) |
DP x 17(#18) |
| Hook |
Double-capacity
shuttle hook |
| Feed motion work clamp
foot |
R-theta
intermittent feed (2-shaft drive by stepping motor) |
| Number of stitches that
can be stored in memory |
Max.
10,000 stitches |
Max.
360,000 stitches
(Max. 20,000 stitches/pattern) |
| Number of patterns that
can be input |
64
patterns |
691
patterns |
| Input function |
Not
provided |
Provided
as standard |
| Enlarging/Reducing facility |
20~200%
(1% step)
(by increasing/decreasing the stitch length) |
1~400%
(0.1% step)
(by increasing/decreasing the stitch length or the number
of stitches) |
| Memory medium |
EEP-ROM |
2DD/2HD
3.5” micro-floppy disk
(EEP-ROM can also be used.) |
| Bobbin thread counter |
Provided
as standard |
| Lubrication |
Centralized
oil wick lubrication |
| Lubricating oil |
JUKI
New Defrix Oil No.2 (equivalent to ISO VG32) |
| Sewing machine motor |
400W
compact AC servomotor (direct-drive system) |
| Power consumption |
Single-phase,
3-phase 600W |
| Weight |
Machine
head (include motor) 46kg, control box 16.5kg |
Machine
head (include motor) 46kg, control box 18kg |
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