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Computer-controlled, High-speed,
Bartacking Machine
The world's highest sewing speed
of 3,000rpm !
The proven computer-controlled bartacking machine has been
dramatically evolved to be an easier-to-use machine
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| LK-1900A-SS (Table stand is
optionally available.) |
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Features
| The machine
achieves the world's highest sewing
speed of 3,000rpm. |
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| In addition
to the high-speed sewing performance,
the machine's starting, stopping, thread-trimming
and automatic presser lifting speeds
have been increased to significantly
shorten total cycle time (reduced approximately
30% compared to our predecessor model:
For 42-stitch large bartacks). |
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| The machine
comes with a newly developed needle
thread grasping mechanism. The mechanism
prevents thread from slipping off from
the needle eyelet at the beginning of
sewing, from tangling on the wrong side
of the material and also being stained
during sewing. |
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| The thread
trimming mechanism has been further
improved to shorten the length of thread
remaining on the wrong side of the material
after thread trimming. |
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| Wider
sewing area and many different sewing
patterns. |
| With its
30mm (length) by 40mm (width) sewing
area, the machine can sew many different
shapes of bartacks. |
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| The machine
is provided as standard with as many
as 50 different types of sewing patterns
including semilunar bartacking, round
bartacking, radial tacking as well as
conventional bartacks. |
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| The LK-1900A
is also able to sew bartacks using the
same data used for the LK-1900 (EP-ROM). |
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| Oil
stains are eliminated. |
| Thanks to our advanced
dry-head technology, the frame (needle
bar and thread take-up) no longer requires
lubrication. This prevents the material
from being stained with lubricating
oil. |
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| Just a small quantity
of just clean oil is supplied from the
oil tank to the hook. |
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| The
machine is provided as standard with
the active tension (electronic thread
tension control mechanism). |
| Since the
machine is provided with an active tension
mechanism, it is able to set a needle
thread tension that matches various
sewing conditions (such as thread, material
and sewing speed) on the operation panel,
store the data in memory and reproduce
it. |
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| The needle
thread tension can be separated according
to stitching type or portion of a seam,
such as the beginning part of the seam,
base stitched part, zigzag stitched
part and end of the seam (fastening
stitch). |
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| When the
operation panel (IP-200B) is used in
combination with the active tension,
the needle thread tension can be set
on a stitch-by-stitch basis. This helps
eliminate undesired thread tension variations
at a multi-layered part of a material
or with sewing direction, thereby contributing
to upgraded seam quality. |
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| A
wide choice of subclass models of LK-1900A. |
| The LK-1900A model comes
in five different subclass models, such
as S type (standard), H type (for heavy-weight
materials), F type (for foundation),
M type (for knits and knitted materials)
and W type (with a large shuttle hook
for heavy-weight materials), to offer
a choice according to any application. |
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| The needle's
penetrating force into the material
has been increased. This provides an
improved responsiveness to heavy-weight
materials for the H type machine. |
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| The W type
has adopted a large shuttle hook, which
reduces the frequency of bobbin-thread
changing to enable highly efficient
sewing work. |
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| Bartacking pocket lip of suits (S
type) |
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| Bartacking crotch of jeans
(H type) |
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Attaching the shoulder
straps to brassier (F type)
*Presser foot for vertical bartacking
is supplied with the unit as an accessory. |
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| Bartacking shoulder of
running shirt (M type) |
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| Auto-lifter
mechanism utilizing a new system. |
| The machine
is provided as standard with an auto-lifter
that uses a new stepping-motor system.
This helps reduce operator fatigue. |
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| It is also
possible to change over the stroke of
the auto-lifter from a one-step stroke
to a double-step stroke, which offers
easier positioning of a material on
the machine. For the double-step stroke,
an intermediate stopping height can
be established on the operation panel. |
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| The presser
foot lift can be set to a maximum of
17mm by using the reverse-rotation needle-up
function in combination with the auto
lifter mechanism. |
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| Excellent
workability and operability. |
| The direct-drive
head (with no belt), which is directly
connected to a compact AC servomotor,
achieves outstanding responsiveness
and improved stop accuracy. This head
helps create a comfortable working environment
with reduced vibration and noise. |
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| The arm
section of the machine head is fitted
with a hand pulley. This allows the
operator to visually check the needle
entry points. |
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| The
sewing starting point can be corrected. |
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The sewing
starting point can be shifted in the
X/Y direction. This enables the correction
of a sewing pattern in accordance with
the presser foot configuration. |
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| Highly
reliable electrical system. |
| The machine
has adopted a highly reliable and safe
transformer-less switching power system
with an increased resistance to voltage
fluctuations. |
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| Detailed
error indications prevent trouble from
occurring. |
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Specifications
| Model name |
LK-1900A-SS |
LK-1900A-HS |
LK-1900A-FS |
LK-1900A-MS |
LK-1900A-WS |
| Application |
Standard |
For heavy-weight
materials |
For foundation |
For knits
and knitted materials |
With large
hook for heavy-weight materials |
| Max. sewing speed |
3,000rpm |
2,700rpm |
| Sewing area |
30mm
(L) x 40mm (W) |
| Stitch length |
0.1~10mm
(0.1mm step) |
| Needle bar stroke |
41.2mm |
| Lift of the work clamp
foot |
Standard
14mm (17mm when the reverse-rotation needle-up function) |
| Auto-lifter |
Provided
as standard (stepping motor type) |
| Needle thread tension |
Active
tension (electronic thread tension control system) |
| Needle (at the time of
delivery) |
DP x 5
(#14) |
DP x 17
(#21) |
DP x 5
(#11) |
DP x 5
(#11) |
DP x 17
(#21) |
| Hook |
Standard
shuttle hook |
Large
shuttle hook |
| Number of stitches that
can be stored in memory |
Max.
20,000 stitches |
| Number of standard patterns |
50
patterns |
| Number of data that can
be input |
200
patterns ( For up to 150 patterns, sewing data can be
added.) |
| Enlarging / Reducing
facility |
20~200%
(1% step), Pattern enlargement /
reduction can be done by increasing / decreasing the stitch
length |
| Memory medium |
EEP-ROM,
EP-ROM |
| Bobbin thread counter |
Provided
as standard (Up / Down method) |
| Lubrication |
Hook:
minute-quantity lubrication |
| Lubricating oil |
JUKI
New Defrix Oil No.2 (equivalent to ISO VG32) |
| Sewing machine motor |
450W
compact AC servomotor (direct-drive system) |
| Power consumption |
320W |
| Weight |
Machine
head (include motor) 42kg, Control box 16.5kg |
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