JUKI LZ-2290A Series User manual

LZ-2290A Series
A single LZ-2290A Series machine is extremely versatile
and can perform many different stitching patterns.
Computer-controlled, Direct-drive, High-speed, 1-needle, Lockstitch, Zigzag Stitching Machine
 


01
The machine is provided with many different stitching patterns.
Advanced operation panel
IT-100
The next-generation standard zigzag stitching machine LZ-2290A Series
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Example of screen displays
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It comes in two different models, one with standard specifications
and the other with an anti-material slip capability. For both
models, there are two subclass models, i.e., the "minute-quantity
lubrication type" and the "dry-head type", which eliminates oil
stains on sewing products. You may select the best-suited model
from the diversified subclasses according to your applications.
The machine is also provided with a newly-developed operation
panel, the IT-100. With this operation panel, you can easily
establish settings for stitch shapes and stitches, as well as conduct
setup changing, thereby achieving further increased availability.
A liquid crystal display has been
adopted. It displays stitch shapes,
zigzag width and standard lines with
pictographs and settings all together
on one screen to improve operability
of the panel.
The machine has added capabilities
that make the most out of the
computer-controlled sewing machine
functions, such as program stitching
(constant-dimension sewing), cycle
sewing and continuous sewing.
With these capabilities, the machine is
able to respond to sewing in various
processes.
Custom pattern data can be stored
using the same USB memory.This
enables the sharing of custom
patterns, not only in one plant, but
also among two or more sewing
plants, by exchanging data via e-mail
systems.
The machine is provided as standard with fourteen different
basic zigzag stitching patterns grouped into eight different
types. You can choose the zigzag stitching pattern you want
directly on the operation panel (IT-100) of the machine body.
The zigzag width, needle throw position and number of blind
stitches can also be easily adjusted on the operation panel.
A single unit is extremely versatile and can perform straight
stitching, standard zigzag stitching, 2-step zigzag stitching,
3-step zigzag stitching, scallop stitching, and blind stitching.
As a result, the system is available for a far wider range of
applications.
Scallop stitch shape setting
Continuous stitching
Maintenance function
■Sewing pattern
Name of
pattern
Stitch
pattern
Number of
stitches
1246 24
Straight
stitch
Standard
zigzag
2-step
zigzag
3-step
zigzag Standard Crescent Equal-
width Equal- width Standard Crescent Equal- width Equal- width
Scallop (left) Scallop (right) Blind
stitch
(left)
Blind
stitch
(right)
Custom
pattern
12 24 12 3~250
Max. 500
✱
✱
✱
✱
✱
A single LZ-2290A Series machine is extremely versatile and
can perform many different stitching patterns.

ABCBC
D
02
Soft-texture seam quality.
■Hook-driving shaft offset
mechanism
You can quickly create an original stitching pattern on the operation
panel and then try to sew it on a trial basis.
A wider variation in design enables the machine to respond to wider
applications, such as foundations, ladies' wear and men's wear.
The machine requires neither a programming device nor ROM writer.
Abundant variation in stitching.
●Custom patterns
• Original sewing patterns can be quickly
created and stored in memory.
• Max. 20 patterns, Max. 500 stitches /pattern.
●Mirroring of scallop stitches
• The machine produces beautifully finished
scallop stitches on front part of a girdle. etc.
• For the scallop stitch, the starting position for
sewing can be selected between the top and
bottom of a scallop.
●Setting the number of stitches
for a blind stitching pattern
• The user can set the
number of stitches
for a pattern.
(3 to 250 stitches.)
●Setting of the left and right stopping positions
• The left and right
stopping positions of the
needle can be controlled.
•
These settings are
effective when
performing corner
stitching for label
attachment or decorative
stitching on the fronts of
●Continuous stitching
• Custom patterns can be
joined.
• Max. 10 patterns,
Max. 20 steps / pattern, and
Max. 500 stitches / step
●Program stitching
• As many as 20 different constant-dimension
stitch patterns can be programmed.
The maximum number of stitches that can be
set for one step is 500.
●Cycle sewing
• The machine is able to sew different patterns
while changing them in sequence.
• Max. 10 patterns, Max. 20 steps / pattern, and
Max. 500 stitches / step
●Multi-layer stitching
• It is used for reinforcing
fastening stitches or bartacks.
●Condense custom patterns ✽Automatic reverse feed function is required.
• The user can specify original condense custom patterns.
This type of pattern is very effective at producing improved
bartacks and keeping seams from being left undone.
• Start and end of sewing: A maximum of
20 different patterns, with a max. of 64
steps/pattern.
• The machine, with its automatic thread
trimmer, is able to leave shorter thread
after thread trimming as compared with
the conventional machines.
(Example)
(Example)
Bartacks
(Example)
Stop the sewing machine
and press mirror
inversion switch.
Mirror inversion
operation LED
lights up.
Afterwards
inversion
operation
The position at which the
blade point of the hook
tacks the thread is almost
uniform.
Scallop: 1 pattern
Stitching direction
Mirror inversion switch
(Example)
(Example)
Blind stitch: 1
pattern 6 stitches
10 stitches
(Example)
(Example) Start point Step 1
Step 2
Step 3
Step 4
Pattern combining
patterns A, C, B and C
A
C
B
C
Custom patterns can be created
on the operation panel with ease.
Keeping seams from
being left undone
Shorter length of
thread remaining
after thread trimming
Left stopping position
of the needle
Right stopping position
of the needle
Stitching
direction
Stitching
direction
Left Right
✱
✱
✱
✱
✱
The thread tension mechanism, bobbin
case and feed timing have been improved
to produce soft-textured seams.
The machine is equipped with a hook-
driving shaft-offset mechanism which
places the hook-rotating shaft off-center
from the center of zigzag stroke of the
needle. This mechanism allows the blade
point of the hook to catch the needle
thread every time regardless of the needle
throwing direction. As a result, the
machine is immune to sewing troubles
such as stitch skipping and thread
breakage, annoyances likely to occur with
the conventional machine, especially
when the needle throws to the right.
For the minute-quantity lubrication type hook,
the inner hook is finished with titanium to keep it
from becoming hot. The machine requires only a
very small quantity of oil. This prevents oil stains
on the material and the improves durability of the
hook. In addition, the hook configuration is
carefully designed to avoid needle breakage.
!

03
LZ-2290A-SS-7
Newly developed larger-size machine head with a long arm.
Excellent basic performance.
Excellent maintainability.
With the culmination of advanced technologies, the LZ-2290A Series
Wider space under the arm
In the standard zigzag stitching mode with the zigzag width set
to 4mm, a frequently selected operating condition, the machine
sews at a top speed of 5,000sti/min, that is the world's highest
available speed as a computer-controlled zigzag stitching
machine, to increase in productivity.
(The dry-head type and the anti-material-slip type machines are excluded.)
The machine is provided as standard
with a micro-lifter screw. This helps
prevent material slippage or damages
when using elastic materials.
JUKI has developed a new high-long arm machine head one size
larger than the head for the conventional lockstitch machine. With
its wider area under the arm, the machine permits easy handling of
the sewing material for improved operability. The shape of the
jaw gives the operator a clear view of the area around the needle.
Higher productivity
Since the machine supports the feed amount as large as
5mm, this single machine is able to handle various feed
types from standard feed to coarse feed. The coarse feed
is effective when sewing stretched elastic tapes in
processes such as elastic tape attachment to waistbands in
shorts. (For the anti-material-slip type machine, the maximum feed
amount is 2.5mm.)
The stitch dial is a stepless adjustable type. This enables
fine adjustment of the feed amount.
The machine is structured without an oil pan. Oil is supplied
from the oil tank installed on the machine to the hook and
needle bar.
In addition, the oil hole is located on the machine arm.
This is quite helpful to female operators; since oiling can be
carried out without tilting the machine head.
Time and effort are conventionally required to remove the
knee lifter and cover. This means the machine head can be
easily tilted when cleaning the machine or performing
maintenance.
A safety switch is mounted on the machine head. If the
machine is tilted with the power on, the safety switch is
activated and disables the machine operation. In this
disabled condition, the machine will never run even if you
depress the foot pedal.
Increased feed amount
Reduced noise and vibration
The machine comes with a more rigid and well-balanced
machine head frame. This, coupled with the direct-drive
method, dramatically reduces the noise and vibration of the
machine and helps reduce operator fatigue.
Designed with no oil pan (minute-quantity lubrication type)
Bobbin thread winder
Oil holeOil hole
Compact AC servomotor
(direct-drive system)
Oil tank
Safety switch
Safety switch
Stitch dial
(Stepless fine adjustment)
Stitch dial
(Stepless fine adjustment)
Attachment mounting seat Machine head hinge
300mm
Oil tank
✱✱
✱
✱
✱
✱
✱
✱
✱A zigzag width of as large as 10mm is possible for all types of
stitch shapes.
Sewing troubles such as stitch skipping or thread breakage will
never occur even when sewing at the maximum zigzag width.
* A gauge that supports 10mm is required.
The maximum zigzag width: 10mm
Presser
lifting
screw
"

LZ-2290A-DS-7-WB
The machine comes with a completely non-lubricated head to
prevent oil stains on sewing products.
Extensive product lineup for supporting many different processes
The knife-sliding method employed by the thread
trimmer guarantees that the thread is cut regardless of
the needle throw position.
The knife unit is installed
under the bed slide to offer
easier maintenance.
The non-lubricated head will never scatter oil, promising cleanly
finished sewing products free from oil stains.
In addition, the machine and table will not be stained with oil
during the gauge changing or maintenance on the machine such
as cleaning.
The machine offers a service speed of as high as 4,000sti/min for
zigzag stitching. With this speed, the machine can be effectively
used in various zigzag stitching processes.
The newly developed special-race plastic hook offers increased
durability and upgraded sewing capabilities. It responds
beautifully to various types of thread. The hook helps the
machine produce consistent high-quality, seams by eliminating
changes in the thread tension caused by fluctuating oil levels.
Needle thread
feeding device
One-touch type
reverse feed switch
Needle thread
feeding device
One-touch type
reverse feed switch
Type
Dry-head type Minute-quantity lubrication type
Without automatic With automatic Without automatic With automatic
thread trimmer thread trimmer thread trimmer thread trimmer
Standard LZ-2290A-DS LZ-2290A-DS-7-WB LZ-2290A-SS LZ-2290A-SS-7-WB
LZ-2290A-DS-0B LZ-2290A-SS-0B
Anti-material-slip capability LZ-2290A-DU LZ-2290A-DU-7-WB LZ-2290A-SU LZ-2290A-SU-7-WB
LZ-2290A-DU-0B
Computer-controlled, Direct-drive, High-speed, 1-needle, Lockstitch, Zigzag Stitching Machine
(dry-head type)
Computer-controlled, Direct-drive, High-speed, 1-needle, Lockstitch, Zigzag Stitching Machine
with Automatic Thread Trimmer
Thread trimming mechanism notable for its simple structure and extremely
reliable performance
The machine comes with a needle thread
feeding device that feeds the needle
thread by only the required length at the
beginning of sewing.
The needle thread feeding device prevents
stitch skipping and slip-off of the needle
thread. It also greatly improves
workability by shortening the thread
remaining at the needle after it is trimmed.
The newly adopted push-button-type
reverse feed switch allows the
operator to re-position buttons at
desired locations. This prevents
maloperation when the operator
handles the material on the machine.
✱
✱
✱
✱
Proven thread trimming mechanism.
✱
✱
✱
✱
✱
The machine is equipped as standard
with a needle thread feeding device
A push-button-type reverse feed
switch is adopted
The bobbin thread is retained at a
low tension after thread trimming.
This allows the thread to smoothly
come off at the beginning of sewing,
thereby preventing thread hitching
and stitch gathering.
✱
Troubles are prevented at the
beginning of sewing by keeping
the bobbin thread tension low
04
ries
#

LZ-2290A-SU-7-WB
The machine prevents material slippage when using slippery materials.
●Major applicable processes
2
3
56
4
1
Computer-controlled, Direct-drive, High-speed, 1-needle, Lockstitch, Zigzag Stitching Machine
(with anti-material-slip capability)
Newly developed feed mechanism prevents the material slippage
that is likely to occur when sewing slippery or elastic materials
used for girdles or bodysuits.
The machine never fails to produce beautiful, high-quality seams
regardless of changes in the sewing material to fabrics such as
power net and tricot.
(✽The effects of the machine may not be obvious on some types of materials.)
The machine's bottom feed method prevents material slippage.
Since the LZ-2290A-SU-7 is identical with the standard model in
terms of its appearance and gauge parts, workability is entirely
unaffected.
✱
Computer-controlled, Direct-drive, High-speed, 1-needle, Lockstitch, Zigzag Stitching Machine
with Automatic Thread Trimmer
LZ-2290A-SS-7-WB
✱
✱
1 Attaching reinforcement cloths
2Attaching elastic tape to waist
sections
3Attaching filler cloths
4Attaching lace to bottom
sections
5Attaching reinforcement cloths
6Attaching filler cloths
05
$

06
ries ■List of the major gauges
Max. zigzag
/ Max. feed
• Max. fe
• In addit
Please c
Max. zigzag width
/ Max. feed pitch
Throat plate Feed dog Presser foot (with finger guard) Remarks
Max.
feed amount: 2mm
Max.
feed amount: 2mm
Max.
feed amount: 2mm
Max.
feed amount: 2mm
Max.
feed amount: 2mm
Max.
feed amount: 2mm
Max.
feed amount: 2mm
Max.
feed amount: 1.3mm
(at the time of delivery:
dry-head type)
(at the time of delivery)
(at the time of delivery)
Max.
feed amount: 5mm
Max.
feed amount: 2.5mm
Max.
feed amount: 1.6mm
With a recess on the reverse side
of the presser foot
Light-in-weight type
Light-in-weight type
Light-in-weight type
Light-in-weight type
Presser foot with tape guide
Front fulcrum type
Light-in-weight type with the
front fulcrum
Light-in-weight type with the
front fulcrum
• Suited to
sewing tasks
that require
frequent
changes in the
needle throw
position.
• Light -in-
weight presser
foot prevents
jumping at the
time of
high-speed
sewing.
Max. 15.6
Max. 2
(at the time of delivery)
%

0706
Max. zigzag width
/ Max. feed pitch
Throat plate Feed dog Presser foot (with finger guard) Remarks
Max.
feed amount: 1.3mm
Max.
feed amount: 2.5mm
Max.
feed amount: 2.5mm Max. feed amount: 5mm
Max.
feed amount: 2.5mmMax. feed amount: 5mm
Max.
feed amount: 2.5mm Max. feed amount: 5mm
• For standard
zigzag
stitching
• For attaching
tape to
brassieres, etc.
• Max. feed is 5 mm for the LZ-2290A-SS(-7). Since the max. feed is 2.5 mm for the LZ-2290A-SU(-7), gauges have to be selected with care.
• In addition to the above-listed ones, many different gauges and attachments for zigzag stitching are available.
Please contact us for details.
Light-in-weight type
Light-in-weight type
Light-in-weight type
Light-in-weight type
Light-in-weight type
Light-in-weight type with the
front fulcrum
arks
to
g tasks
quire
nt
es in the
throw
n.
n-
presser
events
g at the
peed
.
&

08
LZ2290A
■Options ■Spec
■When you place orders
●Presser foot connecting
components
●Without automatic thread trimmer ●With automatic thread trimmer
● AK121 Auto-lifter (pedal-driven) ● Non-rotary bobbin
✽Place a separate order for the presser foot
The non-rotary bobbin requires an exclusive hook,
bobbin and bobbin case.
Please note when placing orders, that the model name should be written as follows:
●To order, please contact your nearest JUKI distributor.
LZ2290A 7
Machine head type Code
Standard S
Dry-head D
Type Code
Standard S
Anti-material-slip type U
Machine head type Code
Standard S
Dry-head D
Type Code
Standard S
Anti-material-slip type U
Automatic reverse feed function Code
Not provided
Provided 0B
For LZ-2290A-SU (anti-material-slip capability),
select "Not provided."
Wiper/Automatic reverse feed function
Wiper Automatic
reverse feed function Code
Provided Provided WB
Not
provided Provided 0B
Auto-lifter Code
Not provided
Auto-lifter (pedal-driven) AK121
M
Model nam
Type
Max. sewi
Max. zigza
Needle th
Max. Stitc
Lift of the
Hook
Thread tak
Needle (at
Number of
Max. num
Continuou
Input func
Bobbin th
Machine h
Lubricatio
Lubricatin
Distance f
Bed size
Power req
Power con
Total weig
Custom pa
memory c
(Replaceable presser bar)
Hook
235-23152
Bobbin case (asm.)
235-22550
Bobbin
235-23004
✽“sti/min”
Model Part No. Description Features
–– 400-10795 Automatic reverse feed kit
–– 400-03640 Optional switch kit
AK121 GAK-A21000B0 Auto-lifter (pedal-driven) ––
–– D1501-583-H00 Presser bar
D1502-583-H00 Presser connecting rod
–– B1551-586-000 Presser foot connecting foot
SS-7090910-TP Screw
–– 225-26578 Hard-point hook
Presser foot connecting
components
(Replaceable presser bar)
Presser foot connecting
components
When this device is installed, the LZ-2290A-MM(without
automatic thread trimmer) can perform reverse feed operation.
(The mirroring switch for scallop stitching is used as the push-
button-type reverse feed switch.)
This handy switch is used to control various functions*. It is most
effective when operating the machine in a standing position.
(✽Needle up/down correction, 1-stitch correction, reverse-stitch correction,
auto lifter and thread trimmer, etc.)
The aforementioned parts are used when a lockstitching type
presser foot is installed on the machine.
The blade point of this hook prevents abrasion.
 
✽ 
✽   
✽  
The non-rotary bobbin eliminates. irregular
stitches which have a tendency to occur at
some sewing speeds and bobbin-thread
tension fluctuations which have a tendency
to occur according to the bobbin thread
remaing on the hook.
Since the bobbin thread is fed withot
rotating the bobbin, the bobbin never idles.


■Specifications
KI distributor.
Code
en) AK121
Machine head type Dry-head type Minute-quantity lubrication type
Model name
Without automatic
thread trimmer LZ-2290A-DS LZ-2290A-DU LZ-2290A-SS LZ-2290A-SU
With automatic
thread trimmer LZ-2290A-DS-7 LZ-2290A-DU-7 LZ-2290A-SS-7 LZ-2290A-SU-7
Type Standard Anti-material-slip Standard Anti-material-slip
capability type capability type
Max. sewing speed
4,000sti/min※5,000sti/min※4,500sti/min※
(for standard zigzag stitching, the zigzag width (for standard zigzag stitching, the zigzag width
has to be set to 5mm or less.) has to be set to 4mm or less.)
Max. zigzag width 10min(inincrementsof0.1min)
Needle throw mechanism Computer-controlled
Max. Stitch length 5.0mm 2.5mm 5.0mm 2.5mm
Stepless fine adjustment
Lift of the presser foot By hand: 5.5mm/ By knee: 10mm
Hook Exclusive no-lubricating hook
(plastic hook with special-purpose race surface) DP hook (with titanium-treated inner hook)
Thread take-up Rotary type
Needle (at the time of delivery) 438(Nm75), DP×5(#10)
Number of patterns for standard stitching 8 types/ 14 patterns
Internal memory Max. 20 patterns
Extended memory Max. 999 patterns
Max. number of stitches 500 stitches/ pattern
Continuous stitching pattern Max. 10 patterns, 20 step, 500 stitches/step
Input function of the main unit Provided as standard (operation panel: IT-100D)
Bobbin thread winder Built-in machine head
Machine head drive Compact AC servomotor (direct-drive system)
Lubrication No lubrication Minute-quantity lubrication to needlebar and
hook (no oil pan system)
Lubricating oil –– JUKI New Defrix Oil No.1
(equivalent to ISO VG7)
Distance from needle to machine arm 300mm
Bed size 517mm×178mm
Power requirement/
Power consumption Single-phase 100~120V, 200~240V, 3-phase 200~240V/Power rating 600VA
Total weight 98kg (without automatic thread trimmer)
100kg (with automatic thread trimmer)
Custom pattern
memory capacity
✽“sti/min” stands for “Stitches per minute”
MM(without
d operation.
s the push-
*. It is most
ition.
h correction,
tching type
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!&" '  !  () "
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  "
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