JUKI LK-1900B series Engineer's Manual

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No.
Model name
Item
Application
LK-1900BB
(with bird's nest preventing and shorter thread
remaining type thread trimmer)
LK-1903BB
(with bird's nest preventing and shorter thread
remaining type thread trimmer)
1 Application Bar-tacking Lock stitch button sewing
2 Sewing area X-Direction (right, left) 40 mm;
Y-Direction (forward, backward) 30 mm
—————
3 Button size ————— Type:Round-shaped,atbutton(fourholes,
two holes)
Size : ø8 to 20 mm
4 Max. sewing speed * 3,200 sti/min max. * 2,700 sti/min max.
5 Stitch length 0.1 mm to 10.0 mm (Adjustable in 0.1 mm step)
6 Feed motion of work clamp foot Intermittent feed (2-shaft drive by stepping motor)
7 Needle bar stroke 41.2 mm 45.7 mm
8 Needle DP×17 #14 (S)
DP×17 #11 (F)
DP×17 #11, 14
9 Work clamp lifting system Stepping motor
10 Lifting (lift) amount of work-
clamp foot
Standard 11 mm, Max. 14 mm
(At the time of needle up by reverse run function)
Max. 10 mm
11 Number of standard patterns 50 patterns 34 patterns
12 Data communication USB
13 Wiper system Interlockly with work clamp foot lifter by stepping motor
14 Needle thread clamp device Standard : General 0
(Caution)3.
15 Needle thread tension Active tension (Electronic thread tension control mechanism)
16 Hook Standard semi-rotary hook
17 Lubrication Hook : Minute-quantity lubrication
18 Lubricating oil JUKI NEW Defrix oil No.2 (equivalent to ISO VG32) (Lubrication system)
19 Grease 1. Penetration No. 2 lithium grease, 2. Templex N3, 3. JUKI Grease A
(Caution)2.
20 Memory medium Memory of MAIN board (80 Kbyte)
21 Number of stitches that can be
stored in memory
Max. 20,000 stitches
22 Enlarging/Reducing facility X-Direction, Y-Direction: 20 to 200% each (1% step)
23 Enlarging/Reducing method Pattern enlargement/reduction can be done by increasing/decreasing the stitch length
24 Sewing speed limitation 400 to 3,200 sti/min (100 sti/min step) 400 to 2,700 sti/min (100 sti/min step)
25 Material clawing amount ————— —————
26 Pattern selector facility Standard pattern : 50/34, User pattern : 1 to 200, Media pattern : 1 to 999
27 Bobbin thread counter Up/Down method (0 to 9999)
28 Sewing machine motor AC servo motor (Direct-drive system)
29 External dimensions W: 1,200 mm, L: 660 mm, H: 1,100 mm (Standard table stand applied)
30 Weight Machine head : 42 kg, Control box : 5.1 kg
31 Power consumption 250VA (Pattern No.1, 3,200 sti/min, Pause : 2 seconds)
32 Working temperature range 5°C to 35°C
33 Working humidity range 35% to 85% (No dew condensation permissible)
34 Power-supply voltage 3-phase 200V , Rated voltage ±10% , 50/60Hz
35 Noise - Equivalent continuous emission sound pressure level (L
pA
) at the workstation :
A-weighted value of 82 dB; (Includes K
pA
= 2.5 dB); according to ISO 10821- C.6.3 -ISO 11204
GR2 at 3,200 sti/min for the sewing cycle, 1.0s ON (Pattern : No.1).
- Sound power level (L
WA
) ;
A-weighted value of 89 dB; (Includes K
WA
= 2.5 dB); according to ISO 10821- C.6.3 -ISO 3744
GR2 at 3,200 sti/min for the sewing cycle, 1.0s ON (Pattern : No.1).
* Maximum sewing speed should be reduced according to the sewing conditions.
(Caution) 2.Greasetype,referto"10.-(3)Greasingparts".
 3.FortheLK-1900BBand1903BB, thememoryswitchU035isenabledatthetimeofstandarddeliv-
ery.Whenthisfunctionisdisabled,theneedlethreadwhichbeginssewingbecomeslongandthe
effectofabird’snestpreventingislost.

JUKI LK-1900B series Specifications

General

Brand	JUKI
Model	LK-1900B series
Category	Sewing Machine
Language	English