MO-6900J Series (September, 2003) 1/2
SPECIFICATIONS
SUBCLASS MACHINE LIST
Variable Top-feed, Overlock / Safety Stitch Machine
for Extra heavy-weight materials
M
O
-6900J Series
MO-6916J
Model name MO-6904J MO-6914J MO-6916J
Stitch type 1-needle overlock 2-needle overlock Safety stitching
Stitch style in the U.S.A. 504 514 516
Max. sewing speed 6,000rpm
Stitch length 2.5〜5mm 2.5〜4mm 2.5〜5mm
Needle gauge (mm) − 2.6 4.8
Overedging width (mm) 4.8 6.4 4.8, 6.4
Bottom differential feed ratio
For gathering 1:1.75 (max. 1:3.8) For gathering 1:2 (max. 1:3.8) For gathering 1:1.75 (max. 1:3.8)
For stretching 1:0.7 (max. 1:0.6) For stretching 1:0.8 (max. 1:0.6) For stretching 1:0.7 (max. 1:0.6)
Needle bar stroke 28.8mm
Inclination angle of the needle 20°
Needle bar bushing Upper/lower bushing method
Needle DO×5 (excluding some subclass model)
Vertical stroke of top feed dog 8.5mm
Longitudinal stroke of top feed dog 2.7〜7mm (it differs with the machine's specifications.)
Max. lift of the presser foot 8mm (excluding some subclass model)
Max. presser foot pressure 63.7N (6.5kg)
Stitch adjusting method By push-button
Bottom differential feed adjusting method
By lever (with micro-adjustment)
Top differential feed adjusting method By lever (with micro-adjustment)
Weight of the machine head 29kg
Lubrication Automatic
Lubricating oil JUKI Machine Oil 18 (equivalent to ISO VG18)
Needle cooler Provided as standard
Needle thread heat remover Provided as standard
Micro-lifter Provided as standard
MO-6904J-0F6-700 1 3 − 4.8 3 5 1:0.6〜1:1.75 2.7〜78DO×5 #21 6,000
For runstitching
extra heavy- weight
materials such as denim
MO-6914J-CH6-700 EH 2 4 2.6 6.4 3 4 1:0.7〜1:2 2.7〜78 DO×5 #18 6,000 For overedging jersey, etc.
MO-6916J-FF6-700 2 5 4.8 4.8 3 5 1:0.6〜1:1.75 2.7〜78DO×5 #21 6,000
MO-6916J-FH6-700 2 5 4.8 6.4 3 5 1:0.6〜1:1.75 2.7〜78DO×5 #21 6,000
MO-6916J-FF6-70Q 2 5 4.8 4.8 3 5 1:0.7〜1:1.75 2.7〜78DC×27 #16 6,000
For safety stitching bathrobe, etc.
For safety stitching
extra heavy-weight
materials such as denim
Model No.
Materials
Number
of
needles
Number
of
threads
Needle
gauge
(mm)
Overedging
width (mm)
Number
of
feed dog
rows
Stitch
length
(mm)
Presser
lifting
amount
(mm)
Needle system
Max.
sewing
speed
(rpm)
Bottom
differential-
feed ratio
Remarks
Longitudinal
stroke
of top-feed
dog (mm)
● The machine incorporates a mechanism and parts that are optimum
for the sewing of extra heavy-weight materials, such as an extra
high-lift type upper looper, tractor foot and coarse type feed dog.
It demonstrates an excellent performance ability in the sewing of
various kinds of heavy-weight materials such as jeans, raised fabric
materials, mats and carpets.
● The MO-6900J Series comes with a newly-developed feed mechanism
that moves the top and bottom feeds separately. With its improved
feeding capacity and stronger cloth-biting force, the feed
mechanism prevents uneven material feed when sewing extra heavy-
weight materials.
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