Specifications; At The Beginning - JUKI MF-7900 Instruction Manual

I. SPECIFICATIONS
Model name
Model
Stitch type
Example of application
Sewing speed
Needle gauge
Differential feed ratio
Stitch length
Needle
Needle bar stroke
Dimensions
Weight
Lift of presser foot
Feed adjustment
method
Looper mechanism
Lubricating system
Lubricating oil
Oil reservoir capacity
Installation
Noise - Equivalent continuous emission sound pressure level (L
A-weighted value of 79.5 dB; (Includes K
sti/min.
II. AT THE BEGINNING
❶
High-speed, cylinder-bed coverstitch machine
For preventing thread from raveling at the end of hemming or other processes
Max. 6,000 sti/min (at the time of intermittent operation) Direct-drive type
Speed of stitch at the delivery: 4,500 sti/min (at the time of intermittent operation)
3-needle ..... 5.6 mm and 6.4 mm
2-needle ..... 4.0 mm and 4.8 mm
1 : 0.9 to 1 : 1.4 (stitch length : less than 2.5 mm) * Only for H23
(1 : 0.6 to 1 :1 .1, when the differential link hinge screw is changed)
Micro-differential feed adjustment mechanism is provided. (Micro-adjustment)
0.9 mm to 3.6 mm (can be adjusted up to 4.5 mm)
UY128GAS #9S to #14S (standard #10S)
31mm (33 mm when the eccentric pin is changed over)
(Height) 450 x (Width) 456 x (Length) 299
45 kg (With pneumatic type thread trimmer)
8 mm (needle gauge : 5.6 mm without top covering), and 5 mm (with top covering)
Main feed ............... dial type stitch pitch adjustment method
Differential feed ..... lever adjustment method (micro-adjustment mechanism is provided.)
Forced lubrication method by gear pump
Oil gauge lower line : 600 cc to upper line : 900 cc
Table-mount type, Semi-submerged type
MF-7900 series
ISO standard 406, 407, 602, and 605
Micro-lifter mechanism is provided.
Spherical rod drive method
JUKI GENUINE OIL 18
) at the workstation:
pA
= 2.5 dB); according to ISO 10821- C.6.2 -ISO 11204 GR2 at 4,500
pA
Remove fixed band ❶ for transportation before setting
up the sewing machine.
– 1 –