Computer-controlled, High-speed, Bartacking Machine

JUKI Simple Series sewing machine LK-1900S 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

    This sewing machine shortens the total cycle time with its improved capabilities such as the maximum sewing speed of 3,200 sti/min, quick acceleration at the beginning of sewing and quick deceleration at the end of sewing, increased thread trimming speed and work clamp foot lifting speed.

  • The sewing machine provides the sewing area of 30mm (length) × 40mm (width) 

    With its large sewing area, this sewing machine can be fully utilized for sewing various kinds of sewing patterns such as lengthwise bartacking. In addition, the sewing machine has such a large memory capacity to store many different scale ratios, numbers of stitches and numbers of sewing patterns, thereby ensuring improved flexibility.

Basic performance

  • The LK-1900S comes in two different types to allow customers to select the best-suited one

    The LK-1900S comes in two different types; i.e., S type (Standard) and H type (for Heavy-weight materials). Customers may select one of these types according to their applications.

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

    The sewing machine is provided as standard with 51 sewing patterns with different stitch directions and number of stitches, such as large bartacking, small bartacking, straight line tacking. The operator can select the best-suited sewing pattern according to the given process. (In some cases, the work clamp foot and other parts may be required to be changed.)

  • Work clamp foot lifting height 
    (max. 17mm)

    The sewing machine is provided as standard with the stepping-motor type work clamp foot lifting device. The maximum lifting amount of the work clamp foot is 17 mm.

  • 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.

  • Location of the hand pulley allows the operator to check the needle entry with ease

    The hand pulley is located at the arm of machine head. This arrangement helps the operator visually check the needle entry with ease.

  • TABLE OF THE STANDARD PATTERNS

Specification

Model name LK-1900S-SS LK-1900S-HS
Application Standard For heavy-weight materials
Lubrication Semi-dry head (Hook: minute-quantity lubrication)
Max. sewing speed 3,200sti/min (at the time of delivery: 2,700sti/min)*
Sewing area 30mm (L) × 40mm (W)
Stitch length 0.1~10mm (0.1mm step)
Needle bar stroke 41.2mm
Lift of the work clamp foot Standard 13mm (17mm when the reverse-rotation needle-up function)
Auto-lifter Provided as standard (stepping motor type)
Needle thread tension Spring type dial thread tension controller
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
Number of standard patterns 51 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 is the abbreviation for “stitches per minute” 

When you place orders

Gauge

LK-1900S-SS
LK-1900S-SH

Guage: OP 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: OP FEED PLATE FEED PLATE FEED PLATE BLANK FEED PLATE BLANK FEED PLATE BLANK
Figure
- P/N P/N P/N P/N P/N
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 - - - -
- 13548003 - - - -
- 13554506 - - - -
D9-14 13554803 - - - 40021873
12   - - - 40021876
10   - - - 40021879
14   - - - 40021882
Guage: OP FEED PLATE BLANK_RIGHT FEED PLATE BLANK_LEFT
Figure
Remarks P/N P/N
Surface 14121701 14121800
- 14121909 14122006
Plating 40021851 40021852
No plating 40021853 40021854
Guage: OP 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 -
Guage: OP FINGER GUIDE
Figure
- P/N Remarks P/N P/N
26224204 - 14120000 14135305
13548300 -
13573407 Vertical bar
Guage: OP WORK CLAMP ASM. WORK CLAMP ASM_RIGHT WORK CLAMP ASM_LEFT
Figure
P/N 14121263 14121255 14121354
Guage: OP WORK CLAMP FOOT A_LEFT WORK CLAMP FOOT A_RIGHT WORK CLAMP FOOT B_LEFT WORK CLAMP FOOT B_RIGHT WORK CLAMP FOOT BLANK_LEFT WORK CLAMP FOOT BLANK_RIGHT
Figure
P/N 14137608 14137509 14137905 14137806 40021870 40021869
Guage: OP 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