JUKI DDL-5550N Handbook page 114

Computer-controlled, High-speed, Lockstitch, Button Sewing Machine
LK-1903A
● The machine achieves sewing speed of 2,700rpm.
starting, stopping, thread-trimming and automatic presser lifting
speeds have been increased to significantly shorten total cycle time.
● 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 machine is provided as standard with the active tension (electronic
thread tension control mechanism).
with an active tension mechanism, it is able to set a needle thread
tension that matches various sewing conditions (such as thread,
material and sewing speed) on the operation panel, store the data in
memory and reproduce it.
LK-1903A/BR35
● It provides better productivity as it achieves the maximum speed of
2,700rpm (2,500rpm in normal use) and is equipped with the high
speed trimmer.
● With our original horizontal forced feed mechanism, the button carrier
sets a button in position so that the operation is simplified.
Furthermore, operator fatigue is reduced since what operator needs to
do is only setting material and pressing a pedal.
SPECIFICATIONS
Model name
Max. sewing speed
Button size
Stitch length
Needle bar stroke
Lift of the work clamp foot
Auto-lifter
Needle thread tension
Needle (at the time of delivery)
Hook
Number of stitches
that can be stored in memory
Number of standard patterns
Number of data
that can be input
Enlarging / Reducing facility
Memory medium
Bobbin thread counter
Supplying and sorting of button
Button feed
Button feed mode
Lubrication
Lubricating oil
Sewing machine motor
Power consumption
Weight
The machine's
Since the machine is provided
(with button feeder)
LK-1903A
Type: Round-shaped, flat button
Size: 8 32mm
(standard 8 20mm)
Max. 13mm
Active tension (electronic thread tension control system)
200 patterns (for up to 150 patterns, sewing data can be added.)
20 200%(1% step), Pattern enlargement /reduction can be done by increasing/decreasing the stitch length
320W
Machine head (include motor) 42kg,
Control box 16.5kg
2,700rpm (normal 2,500rpm)
Type: Round-shaped, flat button (2-holed, 4-holed)
Size:
For small button:
For medium-sized button:
(Those that are smaller than
larger than
Thickness: 1.8 3.5mm
0.1 10mm (0.1mm step)
45.7mm
Provided as standard (stepping motor type)
DP 17(#14)
Standard shuttle hook
Max. 20,000 stitches
50 patterns
EEP-ROM/EP-ROM
Provided as standard (Up / Down method)
Hook: minute-quantity lubrication
JUKI New Defrix Oil No.2 (equivalent to ISO VG32)
450W compact AC servomotor (direct-drive system)
115kg (include machine head, table and BR35)
LK-1903A-SS-301
LK-1903A/BR35
LK-1903A/BR35
9 20mm
10 15mm
12
10mm or
18mm must be specially ordered.)
Max. 11mm
Vibration system
Horizontal forced button-feed mechanism
Automatic feed mode, non-feed mode,
and small-lot sewing mode
350W
LK-1903A, LK-1903A/BR35 (September, 2003) 1/4
7
18mm