JUKI MF-7800D Series, Engineer'S Manual

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1. SPECIFICATIONS
No. Item Specifications
1 Model name Semi-dry head, cylinder-bed top and bottom coverstitch machine
2 Model MF-7800D series
3 Stitch type ISO standard 406, 407, 602, and 605
4 Example of application Hemming and covering for knits and general knitted fabrics
5 Max. sewing speed 4,000 sti/min (at the time of intermittent operation)
3-needle ........... 5.6 mm, 6.4 mm
2-needle ........... 4.0 mm, 4.8 mm
1 : 0.9 to 1 : 1.8 (stitch length : less than 2.5 mm)
7 Differential feed ratio Micro-differential feed adjustment mechanism is provided.
(Micro-adjustment)
8 Stitch length 0.9 mm to 3.6 mm (can be adjusted up to 4.5 mm)
UY128GAS #9S to #12S (standard #10S)
(Nm65 to Nm80, standard Nm70)
10 Needle bar stroke 31 mm
11 Dimensions Height: 450 mm, Width: 456 mm, Length: 267 mm
12 Weight 42 kg, 44 kg (with UT25), 48 kg (with UT22)
5 mm (with top covering)
8 mm (without top covering)
Main feed ................ dial type stitch pitch adjustment method
14 Feed adjustment method Differential feed ....... lever adjustment method (micro-adjustment
mechanism is provided.)
15 Looper mechanism Spherical rod drive method
16 Lubricating system Forced lubrication method by gear pump
17 Lubricating oil JUKI MACHINE OIL 18 (Equivalent to ISO VG18)
18 Oil reservoir capacity Oil gauge lower line : 600 cm
3
to upper line : 900 cm
3
19 Installation Top mount type, Semi-submerged type
20 Micro-lifter Provided as standard
21 Provided as standard
22 Cartridge oil filter Provided as standard
6 Needle gauge
9 Needle
13 Lift of presser foot
Needle tip, needle thread sili-
cone tank