JUKI LK-1903A SS Kajabutton Sewing Machine

Price 150000.0 INR/ Number

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JUKI LK-1903A SS Kajabutton Sewing Machine Specification

Warranty
1 year

Stitch width
3.5

Sewing Thickness
3.5mm

Power
320w Watt (w)

Needle
1

Operate Method
Electric, Manual, Automatic

Voltage
240v Volt (v)

Condition
Old

Stitch Formation
lockstitch formation (ISO stitch type 301)

Sewing Speed
2700 SPM

Product Type
JUKI LK-1903A SS Kajabutton Sewing Machine

Color
white

Dimension (L*W*H)
1200*660*1100 Millimeter (mm)

Feed Mechanism
2-shaft intermittent feed mechanism

Stitch Length
10mm Millimeter (mm)

JUKI LK-1903A SS Kajabutton Sewing Machine Trade Information

Minimum Order Quantity
1 Number

Delivery Time
3 Days

About JUKI LK-1903A SS Kajabutton Sewing Machine

The JUKI LK-1903A-SS is an industrial, computer-controlled, high-speed lockstitch button sewing machine designed for precise automated applications in modern production environments. It is primarily used for sewing round-shaped flat buttons (2-holed or 4-holed) on light to standard materials, achieving speeds up to 2,700 stitches per minute.

Key Technical Specifications

The machine's capabilities focus on high productivity and ease of use, with the following technical features as standard:

Max Sewing Speed: 2,700 stitches/min (factory set).
Sewing Area: Standard button size range of to stitch Length: Adjustable from to in steps. needle Bar Stroke:
Built-in Patterns: Provided with 50 standard sewing patterns.
Memory Capacity: Can store up to 20,000 stitches and
patterns.
Lubrication: Semi-dry head system with minute-quantity
Advanced Features

Active Tension Mechanism: Allows operators to set needle thread tension digitally via the control panel, matching specific materials or thread types.
Auto-Lifter: Utilizes a stepping-motor system to reduce operator fatigue; the lift height can be adjusted from one-step to double-step strokes for easier material positioning.
Versatile Operation Panels: Can be operated with a standard simplified panel or an upgraded IP-200B touchscreen panel.
Pattern Customization: Users can easily change the distance between button holes using the enlargement/reduction feature on the pane

Application & Productivity

This machine is frequently integrated with an automatic button feeder, such as the ASK-A device, which can increase productivity by 23 times compared to manual button setting. It is widely used in industries like apparel manufacturing, specifically for high-volume production of shirts and uniform The JUKI LK-1903A-SS is primarily designed for standard/light material applications, but it offers significant flexibility for various thicknesses through its adjustable clamp and specialized parts.

Material & Button Thickness Specifications

The machine's capacity is defined by both the material it can hold and the thickness of the buttons it can sew:

Work Clamp Lift Height: The standard auto-lifter can be set to a maximum of . This provides ample space for positioning standard garment layers and thicker fabrics.
Standard Button Thickness: The standard configuration is optimized for buttons with a thickness of to
Thick Button Capacity: .
Heavy Material Variant: While the "-SS" model is for standard materials, JUKI also offers the LK-1903 BNB variant specifically engineered for heavy materials like denim or workwear.

Adjustments for Different Thicknesses

If you are encountering issues with material thickness, several mechanical adjustments can be made:

Needle Bar Stroke: The machine features a needle bar stroke to ensure the needle can clear thicker button-and-fabric combinations during high-speed operation.
Clamp Stroke Adjustment: The auto-lifter can be switched from a single-step to a double-step stroke via the operation panel, which is helpful for clearing very thick material setups during positioning.
Active Tension: You can digitally adjust the needle thread tension through the control panel to maintain seam. The JUKI LK-1903A-SS is a heavy-duty industrial unit with specific space requirements for the machine head and its supporting table assembly. Machine Physical Dimensions
The overall footprint depends on the standard table and
The
JUKI LK-1903A-SS
uses an advanced electronic feed mechanism that replaces traditional mechanical cams with digital motor control, significantly reducing maintenance and noise.

1. X-Y Electronic Feed System

The machine features a 2-shaft intermittent feed mechanism driven by high-precision stepping motors:

Digital Scaling: Patterns can be enlarged or reduced directly via the operation panel, adjusting the distance between button holes without changing any physical parts.

No Feed Cams: By eliminating mechanical cams and stop-motion mechanisms, the machine operates more quietly and requires less lubrication and upkeep.

2. Horizontal Forced Button-Feed (Optional/Automatic)

When equipped with an automatic feeder like the BR35 or ASK-A, it uses a horizontal forced feed mechanism:

Button Carrier: A carrier pin quickly and accurately sets the next button into the clamp jaw lever as soon as a sewing cycle finishes.

Anti-Jam Design: This "forced" mechanism is specifically designed to overcome button jamming caused by static electricity, a common issue with shell or plastic buttons.

Automated Discharge: Includes a mechanism to automatically clear remaining buttons from the index when switching button types

3. Active Tension and Auto-Lifter

The feeding process is supported by two other electronic mechanisms:

Stepping-Motor Auto-Lifter: The work clamp is raised and lowered by a dedicated stepping motor, allowing for programmable intermediate heights and a double-step stroke for thicker materials.

Needle Thread Grasping: A specialized mechanism ensures the thread is held securely at the start of sewing to provide consistent knot tying