MF-7823H20B□□, MF-7823H20B□□/UT25 (August, 2004) 1/2
SPECIFICATIONS
COMPRESSED AIR/AIR CONSUMPTION (MF-7823H20B□□/UT25)
MF-7823H20B56/UT25
● This model is intended for the hemmimg of knit shirts and T-shirts.
The left-hand fabric trimmer promises upgraded-quality finished
trimming.
● Left hand fabric trimmer mechanism
•The upper knife stroke can easily be adjusted according to the
material thickness.
•The whole knife driving mechanism unit can be removed.
The machine, therefore, can be used for standard hemming
without the knife.
•Commercially available lower knife can be used with no additional
work.
High-speed, Cylinder-bed, Top and Bottom Coverstitch Machine
for Hemming (with left hand fabric trimmer)
MF-7823H20B□□
(3-needle, top and bottom coverstitch machine)
MF-7823H20B□□/UT25
(3-needle, top and bottom coverstitch machine
with pneumatic top and bottom thread trimming device)
Model name
Stitch type
Max. sewing speed
Stitch length
Differential-feed ratio
Needle gauge
Needle
Lift of the presser foot
Upper knife stroke
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
Top and bottom thread trimmer
Auto-lifter
Weight of the machine head
MF-7823H20B□□ MF-7823H20B□□/UT25
3-needle top and bottom coverstitch
5,500rpm
0.9〜3.6mm (stitch length can be adjusted to 4.5mm)
1:0.9〜1:1.8 (1:0.6〜1:1.1)
5.6, 6.4mm
UY128GAS #9S〜#14S (standard #10S)
5mm (with top and bottom coverstitch),
8mm (with bottom coverstitch)
3〜5mm (standard 4mm)
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
− Provided as standard (pneumatic type)
− Provided as standard (pneumatic type)
42kg 44kg
Device
Compressed air Air consumption
UT25 Air-blow type wiper MC35
0.7NR/min ○
0.5MPa
182NR/min ○○
(5kgf/F)
456NR/min ○○
637NR/min ○○○
＊ 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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