LK-1903, 1903/BR25 (June, 2001) 1/4
LK-1903
LK-1903/BR25
● The machine provides the maximum number of revolutions of 2,500rpm.
This allows the machine to demonstrate the highest sewing performance
as compared with the conventional lockstitch button sewing machines.
The machine has been developed also to reduce the time required to
lift/lower the button clamp jaw lever, jump and trim the thread.
● The LK-1903 is pre-programmed as standard with 33 different sewing
patterns. The machine permits easy changeover of sewing patterns for
effortless execution of an inexhaustible range of sewing specifications.
Moreover, the machine's upgraded flexibility allows the user to combine
any of the sewing patterns stored in memory for cycle sewing.
● By electronically controlling the direction of the stitches during bartack
sewing to prevent the seams from being undone, the overall quality of
the finished seams is secured.
LK-1903
Computer-controlled, High-speed, Lockstitch Button Sewing Machine
● The machine runs under three different operation modes: the automatic
supply mode, in which buttons placed in the feeder bowl are
continuously fed; the individual mode, in which the operator manually
inserts buttons one by one; and the small-lot mode, in which buttons
(five or six buttons) preliminarily prepared on the machine for one
section of a garment are automatically and continuously fed.
The machine is able to respond to diversified production systems
regardless of the lot size by designating the appropriate operation mode
from among the three different alternatives.
● With its unique horizontally forced button-feed mechanism to eliminate
button jamming due to static electricity, the machine is able to feed
shell buttons to be attached to consistently garments without error.
LK-1903/BR25
(with a button feeder)
SPECIFICATIONS
LK-1903
Max. 2,500rpm (normal 2,200rpm)
Type: Round-shaped, flat button
Size: φ8〜φ32mm
(standard φ10〜φ20mm)
LK-1903/BR25
Max. 2,300rpm (normal 2,200rpm)
Type: Round-shaped, flat button
(2-holed, 4-holed)
Size: φ9〜φ20mm
For small button: φ10〜φ15mm
For medium-sized button: φ12〜φ18mm
(The machine for sewing buttons of
which diameter is less than φ10mm or
more than φ18mm is available on an
extra order.)
Thickness: 1.8〜3.5mm
45.7mm
DP×17 (#14)
Standard shuttle hook
Max. 13mm Max. 11mm
33 patterns are provided as standard
Max. 64 pattern
Max. 10,000 stitches
20%
〜
200% (1% step),
Pattern enlargement/reduction can be done by increasing/decreasing the stitch length
EP-ROM
Provided as standard
(The bobin thread counter can be changed over to the No. of pcs. counter.)
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By vibrator
Automatic supply mode, individual mode and
small-lot mode
Horizontal forced button-feed mechanism
Centralized oil wick lubrication
JUKI New Defrix Oil No.2 (equivalent to ISO VG32)
400W compact AC servomotor (direct-drive system)
Machine head (include motor) 41kg,
Control box 16.5kg
Total weight 133kg
(Include optional stand leg)
Model name
Sewing speed
Button size
Needle bar stroke
Needle (at the time of delivery)
Hook
Lift of the work clamp foot
Input pattern
Number of patterns that can be
stored in memory
Number of stitches that can be
stored in memory
Enlarging/Reducing facility
Memory medium
Bobbin thread counter
Supplying and sorting of button
Feeding of buttons
Button supply mode
Lubrication
Lubricating oil
Sewing machine motor
Weight
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