JUKI LK-1903C
JUKI
LK-1903C
Computer-Controlled, High-Speed, Lockstitch, Button Sewing System
🧵 Sewing — Button Sewing Machine

High-speed button sewing machine achieving 2,700 sti/min. LCD panel and control box integrated with the machine head. Stores up to 999 patterns (500,000 stitches). Active tension mechanism for consistent seam quality. Available with optional button feeder (BR35) for automated button supply. Reduces noise by approximately 40% and power consumption by 26% vs predecessor models.

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Higher productivity

The LK-1903C achieves sewing speed of 2,700sti/min. The machine's starting, stopping, thread-trimming and automatic presser lifting speeds have been increased to significantly shorten total cycle time. This is a lockstitch button sewing machine that supports a variety of sewing patterns and cycle sewing.

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Standard LCD panel / Control box integrated with the machine head

The control box integrated with the machine head, originally designed by JUKI, is adopted. The number of standard patterns is 50. As many as 999 patterns (500,000 stitches) can be stored in memory. The new upright type operation panel is installed on the side face of the machine head to allow the operator to operate the machine without averting his/her eyes, during sewing, from the bartack being sewn. In addition, the table surface can be used widely. The operation panel can also be installed on the table as before. ●If you want to install the operation panel on the table, an optional connecting cable (1.2 m) will be necessary. Part number: 40297363

with button feeder (LK-1903C/BR35)
with button feeder (LK-1903C/BR35)

●The machine achieves sewing speed of 2,700sti/min.The machine’s starting, stopping, thread-trimming and automatic presser lifting speeds have been increased to significantly shorten total cycle time. ●With our original horizontal forced feed mechanism, the button carrier sets a button in position so that the operation is simplified. Even first-time operators can achieve stable sewing quality by simply setting the fabric and pressing the pedal.

LK-1903C TABLE OF THE SEWING PATTERNS (No.1~50)
LK-1903C TABLE OF THE SEWING PATTERNS (No.1~50)

LK-1903CB TABLE OF THE SEWING PATTERNS(No.1~No.22、No.34~No.45) Click here for the LK-1903C standard pattern list

The machine is provided as standard with the active tension (electronic thread tension control mechanism)
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. ●The needle thread tension can be separated according to stitching type or portion of a seam, such as the beginning part of the seam, in the middle of sewing and end ofthe seam (fastening stitch).

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Excellent seam quality

Needle thread grasping mechanism helps produce consistent knot tying at the beginning of sewing. (This device has been factory-set to “invoking prohibited” status at the time of delivery.) ●In the case “T” is selected for the work clamp foot/thread clamp

SpecificationValue
Max. Sewing Speed2,700 sti/min
Button Sizeφ8~φ32mm (round-shaped, flat button)
Stitch Length0.1~10mm (0.1mm step)
Needle Bar Stroke45.7 mm
Work Clamp Foot LiftMax 13mm
Needle Thread TensionActive tension (electronic control)
NeedleDP×17 (#14)
Standard Patterns50 patterns
Patterns Storable999 patterns / Max. 500,000 stitches
Enlarging / Reducing20~200% (1% step)
Bobbin Thread CounterProvided as standard
LubricationHook: minute-quantity lubrication
Power Consumption230 VA
Machine Head Weight56.9 kg

* Specifications subject to change without notice. Contact us for the latest information.

📄
Product Catalogue
PDF · 2.4 MB · Official JUKI
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Operator Manual
Official JUKI Manual Site
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Parts List
Official JUKI Parts Portal