Computer-controlled, High-speed, Lockstitch, Button Machine

JUKI Simple Series sewing machine LK-1903S has been designed to have simplified and narrowed down capabilities that are essentially required to produce JUKI's established seam quality. In addition, it supports the operator with the voice guidance system to improve work efficiency.

Product features

  • Voice guidance for the operator

    This sewing machine is provided as standard with the voice-guidance system with clock function. This voice guidance can be used for the purpose of production support such as giving the operator information about the number of pieces produced, work progress management and the operation rate of sewing machine, though the initial setting is required.

    The operation panel is provided as standard with a USB port. This means that the sewing machine data management and software updating can be carried out with ease by means of the USB port.

  • Higher productivity

    The machine's starting, stopping, thread-trimming, up and down of button clamp jaw lever and the jump speeds have reducing to total cycle time.

Basic performance

  • This sewing machine quickly carries out sewing of various kinds of sewing patterns

    • The machine is provided as standard with 50 different sewing patterns. The machine permits easy changeover of sewing patterns for effortless execution of an inexhaustible range of sewing specifications.
    • The LK-1903S is also able to sew buttons using the same data used for the LK-1903 (Data in EP-ROM are enabled by conversion).

  • 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.
    • The work clamp foot lift can be set to a maximum of 13mm.

  • LED light (light quantity in five levels + light-out function)

    The LED light that illuminates the needle entry area is provided as standard. The LED light is provided with the six-step changeover switch to control its brightness and light-out.

  • Excellent responsiveness promises comfortable work

    The direct-drive system that directly connects the compact AC servomotor to the main shaft of the sewing machine has been adopted. 
    This system enables quick startup and promises increased stopping accuracy, thereby contributing to improved responsiveness.

  • TABLE OF THE SEWING PATTERNS

Specification

Model name LK-1903S-SS
Application Standard
Max. sewing speed 2,700sti/min*
Button size Type : Round-shaped, flat button (2-holed, 4-holed)
Size : φ8~φ32mm
301 : φ8~φ20
302 : φ10~φ20
OPTION : φ15~φ32
Lubrication Semi-dry head (Hook: minute-quantity lubrication)
Stitch length 0.1~10mm (0.1mm step)
Needle bar stroke 45.7mm
Lift of the work clamp foot Max.13mm
Auto-lifter Provided as standard (stepping motor type)
Needle thread tension Spring type dial thread tension controller
Needle (at the time of delivery) DP×17 (#14)
Hook Standard shuttle hook
Number of stitches that can be stored in memory Max. 20,000 stitches
Number of standard patterns 50 patterns
Number of data that can be input 200 patterns
Enlarging/Reducing facility 20~200% (1% step), Pattern enlargement/reduction can be done by increasing/decreasing the stitch length
Memory medium Internal-organs memory
Bobbin thread counter Provided as standard (up/down method)
Lubricating oil JUKI New Defrix Oil No.2 (equivalent to ISO VG32)
Sewing machine motor Compact AC servomotor (direct-drive system)
Power supply/Power consumption Single-phase 200~240V/250VA
Weight Machine head (include motor) 42kg, Control box 5.1kg

*“sti/min” stands for “Stiches per Minute”

When you place orders

Gauge

LK-1903S-SS

Guage WORK CLAMP FOOT ASM. WORK CLAMP FOOT_RIGHT WORK CLAMP FOOT_LEFT
Figure
Remarks P/N P/N P/N
- 13518659 13518600 13518709
- 13548557 13548508 13548607
- 13548151 13548102 13548201
- 13542451 13542402 13542501
For knitted fabric 13542964 13542915 13543012
- 13571955 13571955 13571955
Guage FEED PLATE FEED PLATE FEED PLATE FEED PLATE BLANK FEED PLATE BLANK FEED PLATE BLANK
Figure
- P/N P/N P/N P/N P/N P/N
- 13548003 - MAZ15702000 - - -
- 13554506 - - - - -
A 14116107 14137707 - 14120109 40021855 -
B 14116206 - - 14120208 40021856 -
C 14116305 - - 14120505 40021857 -
D 14116404 - - 14120307 - 40021858
E 14116503 - - 14120406 - 40021859
F 14116602 - - - - -
G 14116701 - - - - -
H 14116800 - - - - -
I 14116909 - - - - -
D9-14 13554803 - - - - 40021873
12   - - - - 40021876
10   - - - - 40021879
14   - - - - 40021882
Guage WORK CLAMP BLANK_RIGHT WORK CLAMP BLANK_LEFT
Figure
Remarks P/N P/N
Surface 14121701 14121800
- 14121909 14122006
Plating 40021851 40021852
No plating 40021853 40021854
Guage INNER HOOK PRESSER ASM. NEEDLE HOLE GUIDE
Figure
- P/N P/N Remarks
14103253 B2426280000 -
14103352 B242628000B Thick needle
14103659 14109607 -
B1817210DAD D2426282C00 For knitted fabric
- D2426MMCK00 -
- MAZ15701000 -
- 14149603 -
Guage FINGER GUARD
Figure
- P/N Remarks P/N P/N
26224204 - 14120000 14135305
13548300 -
13573407 Vertical bar
Guage WORK CLAMP FOOT ASM. WORK CLAMP FOOT ASM._RIGHT WORK CLAMP FOOT ASM._LEFT
Figure
P/N 14121263 14121255 14121354
Guage WORK CLAMP FOOT A_LEFT WORK CLAMP FOOT A_RIGHT CLOTH PRSSEER FOOT B_LEFT CLOTH PRESSER FOOT B_RIGHT WORK CLAMP FOOT BLANK_LEFT WORK CLAMP FOOT BLANK_RIGHT
Figure
P/N 14137608 14137509 14137905 14137806 40021870 40021869
Guage WORK CLAMP FOOT_LEFT WORK CLAMP FOOT_RIGHT
Figure
Remarks P/N P/N
D9-14 40021872 40021871
12 40021875 40021874
10 40021878 40021877
14 40021881 40021880
Guage: OP LARGE CLAMP JAW LEVER ASM._RIGHT SPRING_RIGHT
Figure
- P/N P/N
MAZ157070BB MAZ15709000
Guage: OP LARGE CLAMP JAW LEVER ASM._LEFT SPRING_LEFT
Figure
- P/N P/N
MAZ157080BB MAZ15710000
Guage: OP PICK UP DEVICE COMPL.
Figure
For shank button P/N
14146054
Guage: OP NEEDLE BAR_FOR TQ-1 WIPER ASM. A NEEDLE PLATE LINK A BUTTON SUPPORT LINK
Figure
For shank button P/N P/N P/N P/N
D1401M1YC0A MAZ160170A0 40015434 MAZ16015000
Guage: OP NEEDLE HOLE GUIDE NEEDLE_TQX3#14 BUSHING CONNECTING LINK
Figure
For shank button P/N P/N P/N P/N
MAZ16021000 MTQ300B1400 14148209 40010103