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New Sewing Machines


Cylinder-bed, 1-needle, Unison-feed, Lockstitch Machine with a Vertical-axis Hook

(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.



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.

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.

The machine is equipped as standard with a mechanism to correct uneven material feed by making-micro adjustments to the bottom-feed.
Compared with the elliptical feed, the rectangular feed helps reduce gathered stitches.
The ratio of alternate vertical movement remains unchanged even when the material thickness changes.
Higher lift of the presser foot

The maximum alternating vertical movement is 6.5mm.

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.

In addition to the standard type machine, a machine provided with a gauge for small articles is available. (LS-1342, LS-1342-7)
LS-1341 LS-1342
The vertical stroke of the walking foot and presser foot can be easily set and changed.
(LS-1342, LS-1342-7)
  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.

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.

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).

A knee-lifter mechanism is built in the bed. This reduces the pressure required to operate the knee-lifter and facilitates setup.

The machine's full-open-type top design makes adjusting works easier.

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.)

A walking foot mechanism is built into the machine arm to prevent oil from scattering.

LS-1340 LS-1341 LS-1342

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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
(at the time of delivery)
135 x 17
(Nm140) Nm100~Nm180
135 x 17
(Nm160) Nm100~Nm180
Thread #50~#8, B33~B92,
#40~#5, B33~B138,
#30~#5, B46~B138,
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 0.5MPa (5kgf/cm2),
Power requirement Single-phase
100~120V, 220~240V
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

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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