JUKI LBH-1790 Series User manual

The thread tension and main drive mechanisms are electronically controlled.
Computer-controlled, High-speed, Lockstitch Buttonholing Machine
LBH-1790
LBH-1790
LBH-1790S (Table stand is optionally available.)
LBH-1790S (Table stand is optionally available.)

●It is able to store 99 different patterns in its memory, which can be selected as desired from the operation panel.
●All kinds of data can be entered on or selected
from the operation panel.
●Various data, such as pattern numbers and
stitch shapes are indicated on the LCD section
with easy-to-understand pictographs.
The machine is provided as standard with as many as 30 stitch patterns for buttonholing.
OPERATION PANEL (You can choose operation panel.)
q Square u Eyelet square
!3 Semilunar
square
!9 Square
semilunar
@0 Square round
@1 Square straight
bartacking
@2 Square taper
bartacking
@3 Radial
semilunar
@4 Radial round @5 Semilunar
radial
@6 Semilunar
round
@7 Bartacking @8 Bartacking,
right cut
@9 Bartacking,
left cut
#0 Bartacking,
center cut
!4 Semilunar straight
bartacking
!5 Semilunar taper
bartacking
!6 Eyelet
semilunar
!7 Eyelet round !8 Square radial
i Eyelet radial o Eyelet straight
bartacking
!0 Eyelet taper
bartacking
!1 Semilunar !2 Round square
w Round e Radial square r Radial t Radial straight
bartacking
y Radial taper
bartacking
STANDARD PANEL IP-310A
CompactFlash
●A large color LCD touch panel has been adopted for the display. It gives clear
displays that allow the operator to understand operating procedures.
●The IP-310A panel can be connected to a personal computer and can store data
on CompactFlash. This allows data to be exchanged or shared among sewing
machines installed in a factory or among remote factories.
●The IP-310A panel has been provided with a process improvement supporting
feature through the indication of the operational state of the sewing machine,
and a maintenance and management
feature for indicating the needle
changing timing and cleaning timing.
LBH-1790
The machine offers increased flexibility.
It achieves the highest productivity and seam quality.
The machine offers increased flexibility.
It achieves the highest productivity and seam quality.
The machine offers increased flexibility.
It achieves the highest productivity and seam quality.
The machine offers increased flexibility.
It achieves the highest productivity and seam quality.

Bed the left side width of
which has been reduced
Longer distance from machine arm to needle
Solenoid
Auxiliary table (standard accessory)
Bed the left side width of
which has been reduced
Longer distance from machine arm to needle Auxiliary table (standard accessory)
Needle thread tensioner
Solenoid Needle thread tensioner
●The hollowed type frame promises efficient sewing of vertical buttonholes.
The machine can be operated with its head positioned horizontally.
●The distance from the machine arm to the needle has been lengthened and
the left side section of the needle entry has been reduced by a large margin.
This helps in the smooth placement of the sewing product on the machine,
thereby ensuring improved workability.
●The sewing product can further be placed on the machine
easily by installing the auxiliary table (standard accessory).
In addition, the needle entry is located in the center of the
bed, promising easier positioning of the sewing product.
●Thanks to our advanced dry-head technology,
no lubrication is required except for the hook
section. This eliminates oil stains on the
sewing product.
●The machine can be completely changed into
a dry-head machine by replacing the hook
with an optional non-lubricated hook.
(In this case, the maximum sewing speed will
be 3,300rpm.)
●Only a minute-quantity of clean oil is fed to the
hook section from the oil tank.
●Needle thread tension for sewing parallel and bartacking
sections of buttonholes can be separately controlled
through the operation panel and stored in memory
according to various sewing conditions (e.g., type of
thread, type of material and sewing speed).
●The machine is able to change the needle thread tensions
at the parallel and bartacking sections of the buttonhole,
to produce a beautiful buttonhole shape. This capability
helps greatly in preventing thread breakage.
●Needle thread tension is activated at the beginning and
end of sewing. This prevents unthreading of the needle
thread, and thread fraying that is likely to occur at the
beginning of sewing.
●Thread tension for basting stitching can be specified
separately.
Oil tank
Hook
Oil tank
Hook
Hook section
(minute-quantity
lubrication)
Non-lubricated
section
Hook section
(minute-quantity
lubrication)
Non-lubricated
section
The machine eliminates oil stains on the sewing product.
JUKI's unique active tension (Electronic thread tension control system).
Frame shape offers improved operability.

Purl stitching ←→ Whip stitching Single stitching ←→ Double stitching
●The basting stitch is effective on elastic materials such as knits.
Basting stitch: Since the needle thread is tucked in without fail,
it will never jut out of the buttonhole seams.
Basting stitch can be sewn by nine rounds.
(The state in which the material is stretched in
the lengthwise direction after buttonholing)
(For a changeover between purl stitch
and whip stitch, threading of bobbin,
as well as the bobbin thread tension
need to be changed.)
•For double stitching, the bartacking
section is skipped and only the parallel
sections are sewn twice. This prevents
any excessively tight finishes in the
bartacking section of the buttonhole.
•First- and second-round stitches can be
sewn using different stitch widths.
●Thanks to the multiple knife-dropping function, it is no longer required
that the knife be changed at the time the buttonhole size is changed.
The number of knife dropping times can be automatically set according
to the buttonholing size in cases where the buttonhole size is frequently
changed for small-lot productions or during the cycle sewing of
buttonholes that are different in size.
●The double-acting solenoid type knife mechanism is free from the faulty
dropping/returning of the knife. In addition, the knife pressure can be
changed according to the material to be sewn.
●The knife supports sewing lengths of 41mm at the maximum. In addition,
knife mechanisms for 70mm and 120mm are optionally available. With
this, slots such as the belt holes of child seat belts can be buttonholed.
The machine is equipped with a multiple
knife-dropping function.
●The new model of the bobbin thread trimming
mechanism cuts the bobbin thread so that it leaves
a shorter length of thread on the material.
Furthermore, the machine produces bartacks at the
end of sewing, thereby preventing finished seams
from coming undone.
●With the soft-start function, the number of stitches,
as well as the sewing speed at the start of sewing
can be specified, thereby preventing the needle
thread from slipping off from the needle eyelet.
(From the first to the fifth stitches, the sewing speed
can be specified on a stitch-by-stitch basis.)
Shorter length of bobbin thread
remaining on the material.
Basting stitch mechanism is effective for the production of beautiful buttonholes.
Cycle sewing
●Twenty different programs can be registered, and as many
as 15 different patterns can be stored in one program.
Continuous sewing
●The machine is able to continuously sew two or more
different patterns without requiring the work clamp foot to
be lifted. As may as 20 programs can be registered, and
six different patterns can be stored in one program.
(Related parts need to be exchanged for optional ones.)
Cycle sewing and continuous sewing.
●The needle bar can be shifted to the rightmost end
position with the work clamp foot lowered.
This facilitates threading of the machine head.
Easy threading.
Sewing settings can be easily changed.
Finished state of
double stitching
State of first-
round stitch
Whip stitchingPurl stitching
Without basting stitch With basting stitch Basting stitch
Position of the needle bar
during sewing
The needle bar can be shifted to
the right at the time of threading

● Explanation of pedal motion
Work clamp position
①Maximum position
Cloth
②Intermediate position
③Sewing position 17mm17mm
Compact AC servomotor
(direct-drive) Stepping motor
for the presser bar lifter Stepping motor for the bobbin thread trimmer
Stepping motor for the cloth feed
Stepping motor for the bobbin thread trimmer
Stepping motor for the cloth feed
Stepping motor
for the needle throw
Stepping motor
for the needle thread trimmer
Double acting solenoid
for the cloth cutting knife
Compact AC servomotor
(direct-drive) Stepping motor
for the presser bar lifter
Stepping motor
for the needle throw
Stepping motor
for the needle thread trimmer
Double acting solenoid
for the cloth cutting knife
Major drive mechanism is electronically controlled.
●An electronic control feature has been adopted for the material feed
mechanism, needle rocking mechanism, needle thread trimming mechanism,
bobbin thread trimming mechanism, cloth cutting knife mechanism and presser
bar lifting mechanism. In addition, mechanisms such as V-belts, stop-motion
mechanisms and cams have been substantially reduced to ensure operation
with lower vibration and noise.
●A direct-driven system that directly connects the
compact AC servomotor to the main shaft has been
adopted.
●All adjustment values are entered as data. They can be
set or stored in the memory on the operation panel.
●The machine is provided as standard with a newly-developed auto-lifter driven
by a stepping motor. This helps reduce the operator's fatigue. This helps reduce
operator fatigue. As for the pedal, one-pedal and two-pedal models can both be
changed over and the intermediate stop, which facilitates positioning of the
sewing product, can be specified.
●The work clamp foot lift can be set as desired.
The reverse-rotation needle-up function offers
a maximum work clamp foot lift of 17mm.
Many functions of the pedal.
Pedal motion
Pedal type
2-pedal 1-pedal 1-pedal
(without intermediate position) (with intermediate position)
Initial position
Setting of sewing product
Start of sewing
End of sewing
②Intermediate position
Presser goes up as high as the pedal
toe down amount of the left side pedal.
Presser comes down when the left
side pedal is depressed.
→③Sewing position
The right side pedal is depressed.
②Presser automatically goes up to
intermediate position.
①Maximum position
The first step of the right side pedal
→③Sewing position
The second step of the right side pedal
①Presser automatically goes up to
maximum position.
①Maximum position
The first step of the right side pedal
→②Intermediate position
↓
The second step of the right side pedal
→③Sewing position
The third step of the right side pedal
①Presser automatically goes up to
maximum position.

For needle throwing width
Part No. (Marking: A×B)
5mm 400-04350 (S5: 1.4×6.2mm) ◎
6mm 400-04351 (S6: 1.4×7.4mm)
● Cloth cutting knife, Work clamp
● Throat plate
Knife size
Cloth cutting knife Work clamp Work clamp foot
For stitch width 5mm For stitch width 6mm
Standard (S) Standard (S)
Part No. Mark
Part No. Part No. Part No.
(Length of cloth cutting knife) (Length of cloth cutting knife)
<Type>
<Type>（A×B）<Type>（A×B）
6.4mm (1/4") B2702-047-F00 F
9.5mm (3/8") B2702-047-K00-A △K
11.1mm (7/16") B2702-047-I00 I
12.7mm (1/2") B2702-047-L00-A ◎L
14.3mm (9/16") B2702-047-V00 V
15.9mm (5/8") B2702-047-M00-A △M
17.5mm (11/16") B2702-047-A00 A
19.1mm (3/4") B2702-047-N00 N
22.2mm (7/8") B2702-047-P00 P
25.4mm (1") B2702-047-Q00-A △Q
31.8mm (1-1/4") B2702-047-S00-A S
Designation Part No. Description Feature
Non-lubricated hook
400-06345 RP hook (asm.)
400-06349 RP bobbin case
137-29660 Hook sleeve (asm.)
SS-8660612-TP (4 pcs.) Screws
400-06340 Work clamp arm spacer
SM-6040450-TP (3 pcs.) Screws
145-23252 Work clamp foot 70 (asm.)
145-23401 Work clamp 70
145-23708 Urethane work clamp 70 Selectable
145-24102 Flat work clamp 70
Work clamp 400-08646 Work clamp foot 120 (asm.)
(For sewing length of 70 mm, 120mm) 400-08658 Work clamp 120
400-06335 Work clamp arm 120
400-06339 Cloth feeding plate 120
400-06341 Close cam 120
400-06342 Lifting plate 120
SM-6050800-SP (2 pcs.) Screws
SS-6060210-SP (2 pcs.) Screws
Electric bobbin winder
G5001-198-0A0-A Electric bobbin winder (asm.)
400-05405 Power cord (asm.)
400-53150 Tension controller (asm.)
SK-3452001-SE Wood screws
2-pedal unit for standing work GPK-510010B0 Pedal switch (asm.) −
400-03493 Junction cable (asm.)
Options
◎Factory installed on machine △Supplied as an accessory (For LBH-1790S)
◎Factory installed on machine
B1552-781-000-A
(6.4〜19.1mm)
<1> (4×25mm)
B1552-782-000
(6.4〜25.4mm)
<2> (5×35mm)
B1552-783-000
(6.4〜31.8mm)
<3> (5×41mm)
D1511-773-KA0
<3>
SS-6060210-SP (2 pcs.)
D1511-771-KA0-A
<1>
D1511-772-KA0
<2>
145-24409
(6.4〜31.8mm)
<3> (6×41mm)
A
B
A
B
By the installation of non-lubricated hook, the
machine is changed to be a fully dry-head
machine. (In this case, the maximum sewing
speed will be 3,300rpm.)
The work clamp is
applicable to the
sewing length of 70mm
or 120mm. With this
work clamp, holing of
belt holes in child seat
is possible.
It is a device for winding bobbin separately.
Exclusive to 70mm
Exclusive to 120mm
Common to 70 mm
and 120 mm

◎

◎

△

△
Mark

LBH1790S
LBH-1790S (Table stand is optionally available.)
When you place orders
[Machine head] [Control box]
Please note when placing orders, that the model name should be written as follows:
●To order, please contact your nearest JUKI distributor.
MC601
Model
Knife width Code
6.4〜31.8mm 0
Power supply Code
3-phase 200〜240V E
200〜240V K
Single-phase CE 230V N
(not provided with power switch)
Type Code
Standard S
Operation panel Code
Standard SS
IP panel for LBH-1790 IP310A
(CompactFlash)

Specifications
Sewing speed Max. 4,200rpm, Normal 3,600rpm
When the non-lubricated hook (optional) is used: 3,300rpm
Needle bar stroke 34.6mm
Size of cloth cutting knife 6.4〜31.8mm (1/4"〜1-1/4")
Bartacking width Max. 5.0mm (with special-specification part: Max. 10mm*)
Buttonhole length Max. 41mm (optional: 70mm, 120mm)
Precision of needle throwing mechanism 0.05mm
Needle thread tension Active tension (electronic thread tension control system)
Number of stitches Automatically computed from the size of the buttonhole and stitch pitch
Needle (at the time of delivery) DP×5 (#11J) #11J〜#14J
Hook DP type, full-rotary hook
Non-lubricated hook (optional)
Lift of the work clamp 14mm (17mm when the reverse-rotation needle-up function is used)
Auto-lifter Provided as standard (stepping motor type)
Needle throwing system Stepping motor
Cloth feeding system Intermittent feed by stepping motor
Cloth cutting knife system By double-acting solenoid
Number of standard patterns 30 patterns
Number of patterns that can be input Max. 99 patterns
Bobbin thread winder Built-in the machine head
Machine head drive system Compact AC servomotor (direct-drive system)
Power requirement/ Power consumption Single-phase 220V, 230V, 240V・3-phase 200〜240V/600VA
Lubrication Only the hook section needs a minute-quantity lubrication.
＊ No lubrication is required when the non-lubricated hook (optional) is used.
Lubricating oil Hook: JUKI New Defrix Oil No.1 (equivalent to ISO VG7)
Total weight 112kg
✽The special-specification part is available on a special order. Contact our branch or office in your area.
✽CompactFlashor CFA specification compatible media.
✽“CompactFlash” is a registered trademark of SanDisk Corporation, U.S.A.
MARKETING & SALES H.Q.
✽ Specifications and appearance are subject to change without prior notice for improvement.
✽ Read the instruction manual before putting the machine into service to ensure safety.
✽ This catalogue prints with environment-friendly soy ink on recycle paper.
NOVEMBER, 2008 Printed in Japan(A)
8-2-1 , KOKURYO-CHO, CHOFU-SHI, 
TOKYO
182-8655 , JAPAN
PHONE :
(81)3-3480-2357, 2358

FAX :
(81)3-3430-4909

http://www.juki.com
Juki Corporation operates an environmental management system
to promote and conduct the following as the company engages in
the research, development, design, sales, distribution, and
maintenance of industrial sewing machines, household sewing
machines, industrial robots, etc., and in the provision of sales and
maintenance services for data entry systems:
➀The development of products and engineering processes that
are safe to the environment
➁Green procurement and green purchasing
➂Energy conservation (reduction in carbon-dioxide emissions)
➃Resource saving (reduction of papers purchased, etc.)
➄Reduction and recycling of waste
➅Improvement of logistics efficiency (modal shift and improvement
of packaging, packing, etc.)
HEAD OFFICE
EMS Accreditation
RE005 089
ISO14001:2004
REG.NO.JSAE389

■ SPECIFICATIONS ■ SPECIFICATIONS ■ SPECIFICATIONS
■ WHEN YOU PLACE ORDERSWHEN YOU PLACE ORDERS ■ WHEN YOU PLACE ORDERSWHEN YOU PLACE ORDERS ■ WHEN YOU PLACE ORDERS
Model name
Application
Sewing speed
Needle bar stroke
Max. lift of the work clamp
Max. thickness of material
that can be used
Number of stitches
Length of buttonholes
Needle
Hook
Deceleration method
Lubrication
Lubricating oil
Motor
Weight of the machine head
LBH-780
Buttonholing for ordinary
cloth, knit, etc.
3,600rpm
LBH-780NV
For double-stitching with gimp
LBH-780NB
For double-stitching with
gimp and gimp cutter
Max. 3,300rpm, Normal 3,000rpm
34.6mm
12mm 11.5mm
4mm (with the work clamp lowered)
54〜345 (by gear-change method)
6.4〜38.1mm 9.5〜38.1mm 11.5〜38.1mm
DP×5 #11J, For JE: 134 Nm75
DP type, automatic-lubricating full-rotary hook
Belt-shifting method
Automatic
JUKI New Defrix Oil No.1 (equivalent to ISO VG7)
300W general-purpose motor
(A 250W general-purpose motor can be used when the machine is used at a sewing speed of 3,100rpm or less.)
40kg
LBH78 U
● LBH-780 Series
Code
1
2
3
Model
6.4 〜19.1mm
6.4 〜25.4mm
6.4 〜31.8mm
Knife
width
Code
2
3
Model
9.5 〜25.4mm
9.5 〜31.8mm
Knife
width
Code
2
3
Model
11.5 〜25.4mm
11.5 〜31.8mm
Knife
width
Code
K
Subclass machines
Standard
For knits
LBH78 NV
● NV Type
Code
1
Stitch formation
Square-type bartacking
Round-type bartacking
Code
1
Stitch formation
Square-type bartacking
Round-type bartacking
LBH78 NB
● NB Type
Please note when placing orders, that the model name should be written as follows:
●To order, please contact your nearest JUKI distributor.
1-needle, Lockstitch Buttonholing Machine
SMOOTH OPERATION CONTRIBUTES TO
HIGH-QUALITY FINISHED BUTTONHOLES
AND A HIGHER DEGREE OF EFFICIENCY.
SMOOTH OPERATION CONTRIBUTES TO
HIGH-QUALITY FINISHED BUTTONHOLES
AND A HIGHER DEGREE OF EFFICIENCY.
LBH-780 SERIES
LBH-780 SERIES
MARKETING & SALES H.Q.
✽ Specifications and appearance are subject to change without prior notice for improvement.
✽ Read the instruction manual before putting the machine into service to ensure safety.
✽ This catalogue prints with environment-friendly soy ink on recycle paper.
OCTOBER, 2008 Printed in Japan(A)
8-2-1 , KOKURYO-CHO, CHOFU-SHI,
TOKYO
182-8655 , JAPAN
PHONE :
(81)3-3480-2357, 2358
FAX :
(81)3-3430-4909
http://www.juki.com

Buttonholes are
positioned at right angles
to the top-center plaits.
A
C
B
LBH-783NB
Q060
SK-1 AO17
Q061 Q066
LBH-782NB
At the very least, a good buttonholing machine should
finish seams of consistent quality and be widely
adaptable to many different kinds of materials and seam
specifications. The LBH-780 series buttonholing machines
respond to these needs and help reduce operator fatigue,
thereby finishing high-quality buttonholes with a higher
degree of efficiency.
The buttonholing position can be easily adjusted. This further
enhances ease of operation.
A newly introduced mechanism in the needle thread trimmer
prevents interference with the positioning of buttonholes. The shape
of the face plate is designed to provide sufficient clearance around
the needle entry position. As a result, ease of operation is further
improved.
The work clamp can be lifted as high as 12mm. The machine is
capable of sewing heavy-weight materials such as bulky knits.
The maximum lift of the work clamp is 12mm, enabling the machine
to make high-quality buttonholes in heavy-weight materials.
Work clamp can be easily lifted. This helps to substantially reduce
operator fatigue. The pressure required to depress the start pedal
and lifter pedal has been reduced. This helps to dramatically reduce
operator fatigue.
The knife mechanism and stop-motion mechanism produce less noise
when they actuate, thus contributing to a more comfortable working
environment. Thanks to the simple design of the stop-motion
mechanism and unique knife mechanism, the machine operates with
low noise. The machine starts, decelerates and stops smoothly.
A new LBH series model has been designed for a round-type
of bartacking for ladies' wear with a soft, femine touch. With
this new model, finished products provide a soft feeling.
●This needle entry point can visually
checked. This permits easy
positioning of buttonholes.
●The lift of the work clamp is as
high as 12mm.
Square-type bartacking Round-type bartacking
■ LIST OF THE SUBCLASS MACHINES ACCORDING TO THEIR APPLICALIST OF THE SUBCLASS MACHINES ACCORDING TO THEIR APPLICATIONSTIONS ■ LIST OF THE SUBCLASS MACHINES ACCORDING TO THEIR APPLICALIST OF THE SUBCLASS MACHINES ACCORDING TO THEIR APPLICATIONSTIONS ■ LIST OF THE SUBCLASS MACHINES ACCORDING TO THEIR APPLICATIONS
■ OPTIONS ■ OPTIONS ■ OPTIONS
Model
Q060
Q061
Q066
SK-1
AO17
Part No.
MAQ-060000A0
MAQ-061000A0
MAQ-066000A0

―
―
Description
Men's shirts
Ladies' blouses
Spacer for buttonholes on top-
center plaits
Pneumatic knife driving unit
Automatic single-pedal unit
Feature
Spacer for first bottonholes
This is a ruler to be used to set the first buttonhole at a predetermined position
in accordance with the shape of the collar.
Adjustable regardless of the dimensions and shape of collars.
This is a ruler to be used for sewing lateral buttonholes in the process of
buttonholing top-center plaits.
The ruler is provided with four positioning pointers on the right and left.
Each of the pointers can be shifted with a single motion.
The SK-1 pneumatic knife driving unit cuts the material by tapping a flat knife
and nylon plate on the material. This prevents the tensing-up of texture yarns
that so often occurs when sewing glossy synthetic materials.
―
Buttonholing size (in mm)
＊1…Dimension A : 9.5 〜25.4mm ＊2…Dimension A : 9.5 〜31.8mm ＊3…Dimension A : 11.5 〜25.4mm ＊4…Dimension A : 11.5 〜31.8mm
Stitch formation
LBH-781U
LBH-781KU

―



―
LBH-782U
LBH-782KU
＊1
LBH-782NV
LBH-782NV1

＊3
LBH-782NB
LBH-782NB1
LBH-783U
LBH-783KU
＊2
LBH-783NV
LBH-783NV1

＊4
LBH-783NB
LBH-783NB1
6.4 〜31.8
2.5 〜5.0
Max. 40
A
B
C
6.4 〜25.4
2.5 〜5.0
Max. 33
A
B
C
6.4 〜19.1
2.5 〜4.0
Max. 22
A
B
C
Standard
type
Ktype:
For Knits
NV type :
Double-
stitching
with gimp
NB type :
Double-
stitching with
gimp and
gimp cutter
Men's shirts, blouses, working wear,
ladies' wear
Knitting fablic underwear, knit products
including sweaters, cardigans and
tights, medium-weight material
including working wear.
Sweater, polo shirts, knits, and jersey
wear made of the materials which need
to be sewn with especially durable
stitches.
Same with the application of the NV
type models. NB type model is
equipped with the automatic gimp
cutter.
Subclass
models Application
The machine neatly tucks in tetron gimps with consistency.
Thanks to the improved locus of the gimp guide, the machine is
flexibly adaptable to changes in the types of gimps to be used, easily
switching operation to accommodate one to three pieces of tetron
thread, or one sewing thread and one span thread. In addition, the
gimp guide is designed so that it shifts vertically. This means that
the relation between the needle and the gimp guide is uniform even
if the material thickness varies, thus allowing the machine to tuck in
gimps with consistency.
A machine is designed for sewing soft-to-the-touch circular bartacks.
It has been developed to sew circular bartacks on ladies' wear, a
process that requires a very delicate finish.
The machine ensures stable stitching performance on multi-layered
portion of the material. The improved work clamp and its
fulcrumsecurely hold multi-layered portions of a heavy-weight
material, thereby preventing sewing troubles such as uneven material
feed, slip-off of gimp and needle breakage. This allows the machine to
perform buttonholing with consistency.
The gimp cutter dramatically promotes lobor-saving. (NB type)
The length of remaining gimp after its trimming is only about 2mm.
This eliminates the thread cropping procedure in the after-process,
thereby increasing productivity. The distance between the gimp-
cutting scissors and the needle scarcely changes when sewing multi-
layered portions of the material, thus ensuring consistent gimp-
cutting at any occasion.
LBH-780 SERIES
LBH-780 SERIES
LBH-780NV
LBH-780NV
LBH-780NB
LBH-780NB
(for double-stitching with gimp)
(for double-stitching with gimp and gimp cutter)
12mm