Computer-controlled, High-speed, Belt-loop attaching Sewing System

Inspire the Knowledge in Sewing Adjustment Epoch-making Sewing Systems in history.
Digital sewing system proposes the production process added with a computerized new value to all the people who engage in production.

Product overview

Product features

  • Machine is mounted with inbuilt NFC (Near Field Communication) and communication devices capable of a 2-way data transmission

    Data on sewing machine adjustments made according to the product to be sewn can be transferred to a commercially-available Android tablet in contactless mode. This enables quick check for uniform settings as well as confirmation of conditions of sewing machines in a sewing line, thereby facilitating setup changes.
    The operation panel is also provided as standard with a USB port. Data management and software update can be carried out with ease using a USB thumb drive.
    Data items of sewing can be numerically managed to ensure “stable quality” and “reduction in time required for setup changes”. Quantified sewing data can be externally taken from the sewing machine using an Android tablet or USB thumb drive.
    *Android OS Version 6.0 is recommended to use JUKI Smart APP.
    (Operation is confirmed with respect to Versions 5.0 and later.)
    Contact JUKI distributor in your area for how to use the application software.

  • The sewing pattern best suited to the sewing product to be bartacked can be selected by single-key operation

    The machine is provided as standard with six different linear bartacking patterns. Since the sewing size can be easily changed, the optimal number of stitches and sewing size can be speedily selected according to the belt-loop width.  If the normally used patterns are assigned to the patterns keys, a desired pattern can be called up or changed with single-key operation.

  • The machine head has been designed with an emphasis on operability

    With its broadly curved feed bracket (presser arm), the machine permits easy placement of the material to be sewn. The slimly shaped bed and head design that allows free space under the arm demonstrates greater operability in handling materials on the machine and continuous processes. These features contribute substantially to increased productivity in belt-loop attachment processes.

Basic performance

  • Higher productivity

    The machine achieves sewing speed of 3,000sti/min. The machine's starting, stopping, thread-trimming and automatic presser lifting speeds have been increased to significantly shorten total cycle time.

  • Excellent workability and operability
    (Low-noise and low-vibration)

    • The direct-drive head (with no belt), which is directly connected to a compact AC servomotor, achieves outstanding. This head helps create a comfortable working environment with reduced vibration and noise.
    • The arm section of the machine head is fitted with a hand pulley. This allows the operator to visually check the needle entry points.
  • 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.)

  • The sewing starting point can be corrected

    In cases where the needle entry point for button sewing is to be corrected, the sewing starting point can be corrected without the adjustment of the relevant mechanism.

  • Auto-lifter mechanism utilizing a system

    • The machine is provided as standard with auto-lifter that uses a stepping-motor system. This helps reduce operator fatigue.
    • It is also possible to change over the stroke of the auto-lifter from a onestep stroke to a double-step stroke, which offers easier positioning of a material on the machine. For the double-step stroke, an intermediate stopping height can be established on the operation panel.
    • The work clamp foot lift can be set to a maximum of 17mm. (Standard 14mm)
  • Oil stains are eliminated

    • Thanks to our advanced dry-head technology, the frame (needle bar and thread take-up) no longer requires lubrication. This prevents the material from being stained with lubricating oil.
    • Just a small quantity of clean oil is supplied from the oil tank to the hook.
  • Eco-friendly power saving

    An encoder is installed in the pulse motor, thereby achieving substantially improved power-consumption saving.

  • LED Light

    The LED light can adjust the light intensity to 5 levels, and Off setting is also possible. 
    The operator can set the brightness which is easy to work, improving work efficiency.


Model name Belt-loop attaching machine 
LK-1902BN-SS LK-1902BN-HS
Application Standard For heavy-weight materials
Max. sewing speed 3,000sti/min*
Sewing area 30mm (L) × 40mm (W)
Stitch length 0.1~10mm
Needle bar stroke 41.2mm
Lift of the work clamp foot Standard 14mm
(by using the reverse-rotation needle-up function 17mm)
Auto-lifter Provided as standard (stepping motor type)
Needle thread tension Active tension
(electronic thread tension control mechanism)
Needle (at the time of delivery) DP×5 (#14) DP×17 (#21)
Hook Standard shuttle hook
Number of stitches
that can be stored in memory
Max. 20,000 stitches
Applicable pattern number 17, 18 (19, 20, 21, 22*)
*This device has been factory-set to “invoking prohibited” status at the time of delivery.
Number of data that can be input 200 patterns (for up to 150 patterns, sewing data can be added.)
Enlarging/Reducing facility 20~200% (1% step),
Pattern enlargement/reduction can be done by increasing/decreasing the stitch length
Memory method Internal-organs memory
Material drawing amount -
Bobbin thread counter Provided as standard (up/down method)
Lubrication Hook: minute-quantity lubrication
Lubricating oil JUKI New Defrix Oil No.2 (equivalent to ISO VG32)
Sewing machine motor 450W compact AC servomotor (direct-drive system)
Power consumption 250VA
Weight Machine head (include motor) 42kg, Control box 5.6kg
Air consumption -

*sti/min is the abbreviation for “stitches per minute”
*Other company names and product names/brand names are trademarks or registered trademarks of the respective companies.

When you place orders



No. of work clamp foot 1 4 6 7 8
WORK CLAMP FOOT 13518659(ASM.) 13548557(ASM.) 13548151(ASM.)   13542451(ASM.)
FEED PLATE 14116107 14116305 13548003 13554803 14116602
Remarks - - - - -
FINGER GUARD 26224204   13548300   26224204
Application code S H S H S
S(Standard) LK-1902BN-SS Installed on machine head - OP - OP
H(Heavy weight materials) LK-1902BN-HS - OP - Installed on machine head -
No. of work clamp foot 13 14 15 16
WORK CLAMP FOOT 40021871(Right)
FEED PLATE 40021873 40021876 40021879 40021882
Remarks With knurl With knurl With knurl With knurl
FINGER GUARD* 26224204      
Application code S S S S
S(Standard) LK-1902BN-SS OP OP OP OP
H(Heavy weight materials) LK-1902BN-HS - - - -

* Install a finger guard suitable for each work clamp foot when replacing the work clamp foot.