JUKI DDL-5530N Handbook page 243

Cylinder-bed, 1-needle, Lockstitch Machine
with a Vertical-axis Large Hook
LS-321
(needle-feed)
By integrating the needle bar frame with its driving shaft, needle sway is
eliminated and consistent, direct-drive sewing is enabled.
Since the machine incorporates a vertical-axis 1.6 fold-capacity hook, the
frequency of bobbin thread replacement is reduce, further increasing
efficiency.
LS-341N
(unison-feed)
With its unison-feed mechanism that perfectly synchronizes the presser
foot, needle, and feed, the machine performs accurate stitching free
from slippage between the upper and lower cloths.
With its newly designed throat plate, the machine is able to sew
cylindrical articles with diameters as narrow as
the machine's ability to smoothly sew not only bags and shoes, but also
small articles such as wallets.
The alternating vertical movement of the walking foot and presser foot
can be widely adjusted in the range of 2.3 to 6.0mm.
the machine is able to flexibly adapt to various kind of heavy-weight
materials.
LS-341N-7
(unison-feed with an automatic thread trimmer)
The machine is provided not only with the standard type of throat plate
and feed dog, but also with gauges to be used for the sewing of small
articles. These gauges are especially useful for sewing of curves of bags
and leather cages.
The thread trimmer is able to cut threads in the count range from #30
to #5 (B33 B92, Nm 90/3 20/3), widely responding to shoe and
furniture sewing processes.
Thick threads are trimmed without fail, and no re-adjustment is required
even when the thread count is changed.
With just a light press on the touch-sensitive button, reverse feed
stitching is actuated. When sewing 3-dimensional articles, the suspended
ruler can be lifted up out of the way.
SPECIFICATIONS
Model name
Feed system
Max. sewing speed
Max. stitch length
Needle bar stroke
Lift of the presser foot
Thread take-up
Alternating vertical movement
Hook
Needle
(at the time of delivery)
Thread
Safety mechanism
Lubrication
Lubricating oil
Distance from needle to machine arm
Cylinder-bed diameter
Weight of the machine head
Automatic reverse feed function
Power requirement
40mm. This enhances
With this feature,
LS-321
Needle-feed
2,400rpm
By hand: 7mm, By knee: 12mm
DP 5 (#14) #14 #16
For JE: 135 5 (Nm90)
#50 #30, B33 B46
Nm=120/3 60/3
JUKI New Defrix Oil No.1 (equivalent to ISO VG7)
36kg
LS-341N
Unison-feed
2,000rpm
6mm (normal/reverse feed)
33.4mm
By hand: 8.5mm, By knee: 15mm
Slide type
2.3 6mm
Vertical-axis 1.6 fold-capacity hook
DP 17 (#23) #14 #24
For JE: 135 17 (Nm160)
#40 #8, B33 B92
Nm=90/3 20/3
Provided as standard
By an oiler
250mm
72mm
LS-341N-7-0B/XC-E500
LS-341N-7
DP 17 (#23) #16 #24
For JE: 135 17 (Nm160)
D Type: 135 17 (Nm110)
Nm100 Nm130 or DP 17
#30 #5, B46 B138
Nm=60/3 15/3
38kg
Provided as standard
Single-phase 100 120V, 220 240V
3-phase 200 220V, 220 240V
LS-321, 341N, 341N-7 (June, 2001) 1/4
16