JUKI DDL-5550N Handbook page 86

High-speed, Cylinder-bed, Top and Bottom Coverstitch Machine
MF-7822
(2-needle, top and bottom coverstitch machine)
MF-7823
(3-needle, top and bottom coverstitch machine)
● The machine produces seams, which match materials and thread with
consistency.
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.
● Simple maintenance mechanism.
The machine is provided with a variety of mechanisms, which have been
developed in consideration of production sites.
The mechanisms can be easily maintained, contributing to increased
production efficiency.
SPECIFICATIONS
Model name
Stitch type
Max. sewing speed
Stitch length
Differential-feed ratio(switchable)
Needle gauge
Needle
Lift of the presser foot
Stitch pitch adjustment
Differential feed adjustment
Lubrication
Lubricating oil
Micro-lifter
Needle bar stroke converting function
Silicon oil tank for needle tip and
needle thread
Cartridge oil filter
Weight of the machine head
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)
WHEN YOU PLACE ORDERS
Stitch type
2-needle, Top and Bottom
Covestitch
3-needle, Top and Bottom
Coverstitch
MF-7822
2-needle top and bottom coverstitch
4.8mm
MF78
Code Application Code
For universal U10
22
For collarette C10
23
MF-7823U10B56
6,500rpm
0.9 3.6mm (stitch length can be adjusted to 4.5mm)
1: 0.9 1:1.8 (1: 0.6 1:1.1)
UY128GAS #9S #14S (standard #10S)
5mm (with top and bottom coverstitch),
8mm (with bottom coverstitch)
By dial
By micro-adjustment mechanism
Automatic
JUKI Machine Oil 18 (equivalent to ISO VG18)
Provided as standard
Provided as standard
Provided as standard
Provided as standard
42kg
B
Tonque shape of
Code
throat plate
B type (standard) B
MF-7823U10B56
MF-7823K10B56
MF-7823
3-needle top and bottom coverstitch
5.6, 6.4mm
Needle gauge Code
4.8mm 48
5.6mm 56
6.4mm 64
For model category (23) (3-needle),
needle gauge category 48 cannot be selected.
MF-7822, MF-7823 (August, 2004) 1/2
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