MF-7722, MF-7723 (September, 2003) 1/2
● Since the seam tension may be easily increased or decreased, the
machine can be used for a broader range of applications.
Seams can be adjusted depending on the application or material by
changing the thread path or adjusting the thread tension controller, to
produce soft and low-tensed seams for inner wear or to produce high-
grade well-tensed seams for outer wear.
● Optimization of the thread take-up mechanism and top covering thread
path route.
The optimized thread take-up mechanism and top covering thread path
route contribute to an increased stability of top coverstitches.
In addition, the machine is capable of performing sewing with a low
tension applied to the thread to offer improved responsiveness to the
sewing thread.
● The machine comes with a variety of features to increase applicable
types of sewing products.
The machine is provided as standard with a great diversity of features,
such as a differential feed adjustment mechanism with a micro-
adjustment mechanism, a feed dog inclination adjustment mechanism,
a micro-lifter and a needle bar stroke conversion mechanism.
The machine can therefore be quickly adjusted to respond to various
materials and processes, thus increasing the applicable types of sewing
products.
SPECIFICATIONS
Model name MF-7722 MF-7723
Stitch type 2-needle top and bottom coverstitch 3-needle top and bottom coverstitch
Max. sewing speed 6,500rpm
Stitch length 1.2〜3.6mm (stitch length can be adjusted to 4.4 mm)
Differential-feed ratio 1:0.7〜1:2
Needle gauge 4.0mm 4.8, 5.6, 6.4mm
Needle UY128GAS #9S〜#14S (standard #10S)
Lift of the presser foot 5mm (with top & bottom coverstitch), 8mm (with bottom coverstitch)
Stitch pitch adjustment By dial
Differential feed adjustment By micro-adjustment mechanism
Lubrication Automatic
Lubricating oil JUKI Machine Oil 18 (equivalent to ISO VG18)
Feed dog inclination adjustment Provided as standard
Micro-lifter Provided as standard
Needle bar stroke converting function
＊
Provided as standard
Silicon oil tank for needle tip
and needle thread
Provided as standard
Cartridge oil filter Provided as standard
Weight of the machine head 46kg
High-speed, Flat-bed, Top and Bottom Coverstitch Machine
MF-7722
(2-needle, top and bottom coverstitch machine)
MF-7723
(3-needle, top and bottom coverstitch machine)
WHEN YOU PLACE ORDERS
MF77 B
MF-7723U10B56
MF-7723U10B56 MF-7723C10B56
Stitch type Code
2-needle, Top and Bottom
Coverstitch
22
3-needle, Top and Bottom
Coverstitch
23
Application Code
For universal U10
For collarette C10
Tonque shape of
throat plate
Code
B type (standard) B
Needle gauge Code
4.0mm 40
4.8mm 48
5.6mm 56
6.4mm 64
For model category (23) (3-needle), needle gauge
category 40 cannot be selected. For application
category "collarette (C10)," needle gauge category
48 cannot be selected.
＊ The needle bar stroke has been factory-set to 31mm as standard. 33mm for thicker material also be available by simple adjustment. (max. sewing speed: 5,500rpm)
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