SEWING MACHINERY BUSINESS UNIT
JULY, 2013 Printed in Japan(C)
2-11-1, TSURUMAKI, TAMA-SHI,
TOKYO
206-8551, JAPAN
PHONE : (81)42-357-2254
FAX : (81)42-357-2274
http://www.juki.com
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Specifications and appearance are subject to change without prior notice for improvement.
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Read the instruction manual before putting the machine into service to ensure safety.
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This catalogue prints with environment-friendly soyink on recycle paper.
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:
(1) The development of products and engineering processes
that are safe to the environment
(2) Green procurement and green purchasing
(3)
Energy conservation (reduction in carbon-dioxide emissions)
(4) Resource saving (reduction of papers purchased, etc.)
(5) Reduction and recycling of waste
(6) Improvement of logistics efficiency (modal shift and
improvement of packaging, packing, etc.)
Model name MF-7900 series MF-7900D series
SPECIFICATIONS (U11, H22, H23)
WHEN YOU PLACE ORDERS
※"sti/min" stands for "Stitches per Minute."
44kg (with UT59)
45kg (with UT59)
U11
H22, H23
Weight of the
machine head
Needle
Lift of the presser foot
Lubricating oil
Power requirement /
Power consumption
UY128GAS (#10S) #9~#12S
JUKI Machine Oil 18 (equivalent to ISO VG18)
Max. sewing speed 6,000 sti/min※5,000 sti/min※
Single-phase 100~120V / 200~240V,
3-phase 200~240V / 500VA (with automatic thread trimmer)
5mm (with top and bottom covering stitch),
8mm (with bottom covering stitch)
Stitch type 3-needle top and bottom covering stitch 3-needle top and bottom covering stitch
Stitch type Code
3-needle, top and
bottom coverstitch 23
Tongue shape
of throat plate Code
B type B
Needle gauge Code
5.6mm 56
6.4mm 64
Application Code
Universal type U11
Hemming
(with left hand fabric trimmer,
for light-weight materials)
H22
Hemming
(with left hand fabric trimmer,
for medium-weight materials)
H23
Thread trimming device Code
Pneumatic type top and bottom
thread trimming device with
thread-fray-prevention function
UT59
Pneumatic cloth chip
suction device
(electromagnetic valve type)
MC37
Stitch type Code
3-needle, top and
bottom coverstitch 23
Tongue shape
of throat plate Code
B type B
Needle gauge Code
5.6mm 56
6.4mm 64
Application Code
Universal type U11
Hemming
(with left hand fabric trimmer,
for light-weight materials)
H22
Hemming
(with left hand fabric trimmer,
for medium-weight materials)
H23
Thread trimming device Code
Pneumatic type top and bottom
thread trimming device with
thread-fray-prevention function
UT59
Pneumatic cloth chip
suction device
(electromagnetic valve type)
MC37
Please note when placing orders, that the model name should be written as follows:
With automatic thread trimmer (Direct-drive motor) With automatic thread trimmer (Direct-drive motor)
MF-7900D (Semi-dry-head)
MF-7900
SC-921B CP-18B
Control box Operation panel
SC-921B CP-18B
Control box Operation panel
“Knot-Tying”
Thread Tension Release
Secure a smooth stream of thread by
releasing the tension on the needle thread
hook.
Lower Looper Thread Tension Nut
Change the stitches from short stitch at
the end to regular stitch by adjusting the
amount of thread distribution.
Short Stitch
The thread won't be easily loose by
making the pitches shorter at the end.
Thread Hook
Clamp the needle thread without fail and
wait at the standby position for making a
knot.
MF7923D B / /
/ /
MF7923 B