MOJ-3900 SERIES (June, 2001) 1/2
MOJ-3904
●
The MOJ-3900 series incorporates a newly developed feed mechanism
that permits independent motion of the top and bottom-feed dogs.
With its upgraded efficiency of feed and stronger clamping force, the
feed mechanism eliminates irregular feed of extra heavy-weight materials,
thereby helping improve the quality of finished products and enhance
efficiency in sewing.
●
The machines are equipped with a full range of newly developed
functions that are ideal for the sewing extra heavy-weight materials
including, an extra high-throw upper looper (equipped as standard),
tractor foot, and exclusive feed dog. The machines demonstrate
outstanding capabilities in the sewing of various kinds of extra
heavy-weight materials, including raised materials, mats and carpets.
Model name
Stitch type
Stitch style in the U.S.A.
Feed system
Max. sewing speed
Stitch length
Needle gauge (mm)
Overedging width (mm)
Bottom differential-feed ratio
Needle bar stroke
Inclination angle of the needle
Needle (at the time of delivery)
Vertical stroke of top-feed dog
Longitudinal stroke of top-feed dog
Max. lift of the presser foot
Max. presser foot pressure
Stitch length adjusting method
Differential-feed adjusting method
Upper knife
Weight of the machine head
Lubrication
Lubricating oil
Needle cooler
Needle thread heat remover
SPECIFICATIONS
MOJ-3904
1-needle, 3-thread
variable top-feed overlock
504
MOJ-3914
2-needle, 4-thread
variable top-feed overlock
514
MOJ-3916
2-needle, 5-thread
variable top-feed safety stitch
516
MOJ-3904E-0A6-600
MOJ-3914E-CH6-600
MOJ-3916E-FF6-700
MOJ-3916E-FH6-700
MOJ-3943E-FDE6-600
1: 3.8
〜
1: 0.6
1: 3.8
〜
1: 0.6
1: 3.8
〜
1: 0.6
1: 3.8
〜
1: 0.6
1: 3.8
〜
1: 0.6
Groz
142
×
5 #130
Groz
142
×
5 #110
Groz
142
×
5 #130
Groz
142
×
5 #130
Groz
142
×
5 #130
6,000
6,000
6,000
6,000
6,000
1
2
2
2
3
3
4
5
5
6
–
2.6
4.8
4.8
4.8
+ 3.2
4.8, 6.4
6.4
4.8
6.4
4.0
3
3
3
3
3
5
4
5
5
5
1
〜
8.5
1
〜
8.5
1
〜
8.5
1
〜
8.5
1
〜
8.5
8
8
8
8
8
For runstitching
extra heavy-weight
materials such as
denim and drill.
For overedging
jersey, etc.
For safety stitching
extra heavy-weight
materials such as
denim and drill.
SUBCLASS MACHINE LIST
Model No.
Number
of
needles
Number
of
threads
Needle
gauge
(mm)
Overedging
width
(mm)
Number
of
feed dog
rows
Max.
stitch
length
(mm)
Presser
lifting
amount
(mm)
Longitudinal
stroke of
top-feed dog
(mm)
Needle system
Max.
sewing
speed
(rpm)
Bottom
differential-
feed ratio
Remarks
Variable top-feed (rake-in type)
Longitudinal stroke of top-feed is 6mm or less : 6,000rpm
Longitudinal stroke of top-feed is 6mm to 8.5mm : 5,500rpm
2.5
〜
5mm
―
4.8
For gathering 1: 1.8 (max. 1: 3.8)
For stretching 1: 0.6
2.5
〜
4mm
2.6
6.4
For gathering 1: 2.0 (max. 1: 3.8)
For stretching 1: 0.7 (max. 1: 0.6)
2.5
〜
5mm
4.8
4.8, 6.4
For gathering 1: 1.8 (max. 1: 3.8)
For stretching 1: 0.6
28.8mm
20
°
GROZ-BECKERT
142
×
5 (#130)
GROZ-BECKERT
142
×
5 (#110)
GROZ-BECKERT
142
×
5 (#130)
8.5mm
1
〜
8.5mm
8mm
58.8N (6kg)
By push-button
By lever (with micro-adjustment)
Cemented square knife
30kg
Automatic
JUKI New Defrix Oil No.2 (equivalent to ISO VG32)
By silicon oil lubricating unit for the needle tip
By silicon oil lubricating unit for the needle thread
Bottom-feed, Overlock / Safety Stitch Machine
for Extra Heavy-weight Materials
M
O
J-3900 SERIES
Seams
3
Summary of Contents for ACF-164-1903
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