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Cylinder-bed,
1-needle, Unison-feed, Lockstitch Machine with a Vertical-axis
Hook
LS-1340
LS-1341(with
large vertical-axis hook)
LS-1342(with
large vertical-axis hook and gauge for small articles)
LS-1342-7(with
large vertical-axis hook, gauge for small articles, and
automatic thread trimmer)
The LS Series offers a consistent
stitching pitch and outstanding ability to sew sharp curves.
This makes the machine ideal for the sewing of tubular
articles. |
PDF
CATALOG 
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| LS-1342-7 |
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Features
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Sewing
capabilities and feed
performance that respond
to a broad range of
uses in the sewing
of heavy materials. |
With
its larger needlebar
stroke, larger lift
of the presser foot,
and newly adopted
double-tension mechanism,
the machine sews beautifully
with thick threads
(low count thread)
and at higher thread
tensions. This allows
the machine to sew
a broad range of heavy
materials.
* The LS-1340 is provided
with a single-tension
mechanism.
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The
newly developed mode
of highly rigid rectangular
feed guarantees outstanding
feed performance.
In addition, the ratio
between the alternating
vertical movements
of the walking foot
and presser foot remains
unchanged even when
the material thickness
changes.
With this feature,
the machine sews multi-layered
parts of the material
consistently and without
stitch gathering.
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machine is equipped
as standard with a
mechanism to correct
uneven material feed
by making-micro adjustments
to the bottom-feed. |
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Compared
with the elliptical
feed, the rectangular
feed helps reduce
gathered stitches. |
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The
ratio of alternate
vertical movement
remains unchanged
even when the
material thickness
changes. |
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Higher lift
of the presser
foot |
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The
maximum alternating
vertical movement
is 6.5mm. |
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Excellent
for the sewing of
sharp curves. |
The
slimmed-down throat
plate easily responds
to the sewing of small
tubular articles with
diameters as small
as  40mm.
This enhances the
machine's ability
to smoothly sew not
only bags and shoes,
but also small articles
such as wallets.
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In
addition to the standard
type machine, a machine
provided with a gauge
for small articles
is available. (LS-1342,
LS-1342-7)
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| LS-1341 |
LS-1342 |
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The
vertical stroke of
the walking foot and
presser foot can be
easily set and changed.
(LS-1342, LS-1342-7) |
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The
vertical stroke of
the presser foot and
walking foot (amount
of alternating vertical
movement) can be easily
changed with the large
dial mounted on the
top of the machine
head.
The sewing speed is
automatically regulated
based on the vertical
stroke setting.
This ensures ideal
sewing conditions
at all times.
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Excellent
operability and maintainability. |
The
underside of the top
end of the cylinder-bed
is provided with an
easy-to-remove cover.
This promises easy
cleaning of thread
wastes.
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The
stitch length can
be easily selected
by the stitch dial.
The machine's enhanced
operability features
include a clear view
of the area around
the needle, placement
of the bobbin thread
winder on the front
face of the machine
arm, and a large handwheel(160mm).
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A
knee-lifter mechanism
is built in the bed.
This reduces the pressure
required to operate
the knee-lifter and
facilitates setup.
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The
machine's full-open-type
top design makes adjusting
works easier.
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The
machine comes with
a lubricating mechanism
that uses a centralized
oil wick. This substantially
reduces the time and
trouble required for
oiling the machine.
(The hook needs manual
oiling with an oiler.)
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walking foot mechanism
is built into the
machine arm to prevent
oil from scattering. |
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Specifications
| MODEL
NAME |
LS-1340 |
LS-1341 |
LS-1342 |
LS-1342-7 |
| Gauge type |
Standard |
For
small articles |
| Max. sewing speed* |
2,000rpm |
2,500rpm |
| Max. stitch length |
6mm(Normal/Reverse
feed) |
| Needle bar stroke |
36mm |
| Lift of the presser foot |
By
hand: 9mm, By knee: 16mm |
| Thread take-up |
Slide
type |
| Amount of alternating
vertical movement |
2.5~6.5mm |
1~6.5mm |
| Hook |
Vertical-axis
standard hook |
Vertical-axis
1.6 fold-capacity hook |
Needle
(at the time of delivery) |
135 x
17
(Nm140) Nm100~Nm180 |
135
x 17
(Nm160) Nm100~Nm180 |
| Thread |
#50~#8,
B33~B92,
Nm=120/3~30/3 |
#40~#5,
B33~B138,
Nm=90/3~20/3 |
#30~#5,
B46~B138,
Nm=60/3~20/3 |
| Safety mechanism |
Provided
as standard |
| Lubrication |
Centralized
oil wick lubrication (hook: by an oiler) |
| Lubricating oil |
JUKI
New Defrix Oil No.2(equivalent to ISO VG32) |
| Distance from needle
to machine arm |
255mm |
| Cylinder-bed diameter |
72mm |
| Weight of the machine
head |
37.5kg |
40kg |
| Automatic reverse feed
function |
Option |
Provided
as standard |
| Compressed air and air
consumption |
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0.5MPa
(5kgf/cm2),
0.3N /min |
| Power requirement |
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Single-phase
100~120V, 220~240V
3-phase
200~220V, 220~240V |
Sewing speed table
The maximum sewing speed has been specified in accordance with
sewing conditions as shown in the table below.
Set the maximum sewing speed appropriately in accordance with
the sewing conditions given taking care not to exceed the corresponding
specified value.
Amount of alternate
vertical movement of
the walking foot and presser foot |
Stitch
length:
6mm or less |
| 2.5mm |
2,500rpm |
| 2.5mm to less than
3mm |
2,200rpm |
| 3mm to less than
4mm |
2,000rpm |
| 4mm to less than
6.5mm |
1,600rpm |
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Amount of alternate
vertical movement of
the walking foot and presser foot |
Stitch
length:
6mm or less |
| Less than 2.5mm |
2,500rpm |
| 2.5mm to less than
4mm |
2,200rpm |
| 4mm to less than
4.75mm |
1,800rpm |
| 4.75mm to less
than 6.5mm |
1,600rpm |
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