Juki
LS-1340 Series
Cylinder-bed, 1-needle, Unison-feed, Lockstitch Machine with Vertical-axis Hook
Product features
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.
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 φ40mm.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)
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.
The machine is provided as standard with an instantaneous change-over device for the alternate vertical movement amount (DL device)(LS-1342-7)
A helpful automatic reverse feed function is provided as standard (LS-1342-7)
With just a light press on the one-touch type reverse feed button, reverse feed stitching is actuated.
Thread trimming without fai（LS-1342-7)
The machine handles thread counts from #30 to #5. Its highly rigid thread trimming mechanism cuts the thread without fail. The machine can be applied to a broad range of sewing processes, including the sewing of bags.
Basic performance
Excellent operability and maintainability
The area around the needle entry is designed to be easily observed
Since the needle thread-tension-release solenoid is fitted on the rear face of the machine head, the area around the needle entry is easily viewable. This substantially improves the operability of the machine.
Specifications
*"sti/min" stands for "Stitches per Minute."
| Model name | LS-1340 | LS-1341 | LS-1342 | LS-1342-7 |
|---|---|---|---|---|
| Gauge type | Standard | Standard | For small articles | For small articles |
| Max. sewing speed | 2,500sti/min* | 2,500sti/min* | 2,000sti/min* | 2,000sti/min* |
| Max. stitch length | 6mm(Normal/Reverse feed) | 6mm(Normal/Reverse feed) | 6mm(Normal/Reverse feed) | 6mm(Normal/Reverse feed) |
| Needle bar stroke | 36mm | 36mm | 36mm | 36mm |
| Lift of the presser foot | By hand: 9mm, By knee: 16mm | By hand: 9mm, By knee: 16mm | By hand: 9mm, By knee: 16mm | By hand: 9mm, By knee: 16mm |
| Thread take-up | Slide type | Slide type | Slide type | Slide type |
| Amount of alternating vertical movement | 2.5~6.5mm | 2.5~6.5mm | 1~6.5mm | 1~6.5mm |
| Hook | Vertical-axis standard hook | Vertical-axis 1.6 fold-capacity hook Safety mechanism | Vertical-axis 1.6 fold-capacity hook Safety mechanism | Vertical-axis 1.6 fold-capacity hook Safety mechanism |
| Needle (at the time of delivery) | 135×17 (Nm140) Nm100~Nm180 | 135×17 (Nm160) Nm100~Nm180 | 135×17 (Nm160) Nm100~Nm180 | 135×17 (Nm160) Nm100~Nm180 |
| Thread | #50~#8, B33~B92, Nm=120/3~30/3 | #40~#5, B33~B138, Nm=90/3~20/3 | #40~#5, B33~B138, Nm=90/3~20/3 | #30~#5, B46~B138, Nm=60/3~20/3 |
| Safety mechanism | Provided as standard | Provided as standard | Provided as standard | Provided as standard |
| Lubrication | Centralized oil wick lubrication (hook: by an oiler) | Centralized oil wick lubrication (hook: by an oiler) | Centralized oil wick lubrication (hook: by an oiler) | Centralized oil wick lubrication (hook: by an oiler) |
| Lubricating oil | JUKI New Defrix Oil No.2 (equivalent to ISO VG32) | JUKI New Defrix Oil No.2 (equivalent to ISO VG32) | JUKI New Defrix Oil No.2 (equivalent to ISO VG32) | JUKI New Defrix Oil No.2 (equivalent to ISO VG32) |
| Distance from needle to machine arm | 255mm | 255mm | 255mm | 255mm |
| Cylinder-bed diameter | φ72mm | φ72mm | φ72mm | φ72mm |
| Weight of the machine head | 37.5kg | 37.5kg | 37.5kg | 40kg |
| Automatic reverse feed function | Option | Option | Option | Provided as standard |
| Power requirement | - | - | - | Single-phase 100~120V, 200~240V 3-phase 200~240V |
Catalogue
The LS-1340 Series documents Juki publishes, on their own site. They open in a new tab.
And the catalogues Juki publishes for their whole range.
Apparel General Catalog (PDF)Non-apparel General Catalog (PDF)Essential Parts List
The file is published and updated by the manufacturer; it is not copied here, so nobody downloads an outdated version.
Data sheets, photos, videos and specifications: Juki.
Other models · Cylinder-bed Sewing Machine
Tell us the operation you need to solve and we will reply with the right configuration and the lead time.