Juki LK-1903S Computer-controlled, High-speed, Lockstitch, Button Machine

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”

Gauge

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 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: 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	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
For shank button	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
For shank button	MAZ16021000	MTQ300B1400	14148209	40010103