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| MO-6900R
SERIES
— High-speed,
Variable Top-feed, Overlock / Safety Stitch Machine |
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The
MO-6900R Series comes with a newly-developed
feed mechanism that moves the top and
bottom feeds separately. With the combination
of the feed's increased differential
feed ratio and improved feeding capacity,
the machine is able not only to prevent
uneven material feed, but also to easily
finish difficult processes, such as
sewing different types of materials
together, ruffling and piping. |
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Features
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Excellent
bottom and variable top feed mechanisms. |
The locus of the top feed dog increases
the surfaces of the top feed dog that
horizontally synchronize with the bottom
feed dog, to reliably feed the materials
without damaging them.
The feed mechanism smoothly feeds light-weight
materials softly or feeds heavy-weight
materials with an increased cloth-biting
force. |
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The fulcrum of the top feed locus can
be set at the best-suited position according
to the material or process. |
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| Shift
of fulcrum position of the top
feed dog |
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| Since the rake-in
starting time is consistent at
all times, the feed offers increased
bite, to demonstrating its capabilities
when sewing heavy-weight materials
such as jeans. |
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The machine is
able to make ruffles uniformly. |
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The
machine has been developed with the intention
of providing an extended service life. |
The bottom and top feeds
are equipped with separate differential
feed micro-adjusting mechanisms. Various
adjusting mechanisms to adjust the feed
to ideally match the material being
sewn are equipped as standard, such
as the bottom feed dog inclination-adjusting
mechanism and the external differential
feed-increasing mechanism. |
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Comfortable operation
is all but guaranteed, by a wider area
around the needle entry, the adoption
as standard of a micro-lifter feature
that offers improved responsiveness
to materials and provides the operator
with upgraded operability, and by the
reduction of operating noise and vibration,
which has been achieved by designing
an optimally balanced machine. |
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Further
increased reliability. |
The introduction of a
shield-structured needle bar mechanism
and upper and lower needle bar bushings,
contributes to increased durability
and reliability. Additionally, the machine
incorporates an improved upper looper
unit as well as coming standard with
a cartridge type oil filter and cooling
fan, thereby ensuring enhanced reliability. |
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The
needle thread heat remover and needle
cooler are equipped as standard. |
To offer improved sewing
capabilities as well as to prevent stitching
misshapes, the machine is equipped as
standard with the needle thread heat
remover and needle cooler. |
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Devices
intended for conventional JUKI machines
are also interchangeable. |
Gauges and devices you
have used with your existing JUKI machines
are also interchangeable with no additional
machining required.
This eliminates both the waste of resources
and unwanted extra costs. |
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Specifications
| Model name |
MO-6904R |
MO-6914R |
MO-6916R |
| Stitch type |
1-needle
overlock |
2-needle
overlock |
Safety
stitching |
| Stitch style
in the U.S.A. |
504 |
514 |
516 |
| Max. sewing
speed |
7,000rpm
(Longitudinal stroke of top feed dog is 6mm
or less)
6,000rpm (Longitudinal stroke of top feed
dog is 6~8.5mm) |
| Stitch length |
0.8~4mm |
1.5~4mm |
| Needle gauge
(mm) |
– |
2.0 |
3.2,
4.8, 4.8+2.0 |
| Overedging
width (mm) |
3.2,
4.0, 4.8, 6.4 |
3.2,
4.0 |
3.2,
4.0, 4.8, 6.4 |
| Bottom differential
feed ratio |
For
gathering 1:2(Max. 1:4), For stretching 1:0.7(Max.
1:0.6) |
| Needle bar
stroke |
24.5mm |
| Inclination
angle of the needle |
20° |
| Needle mechanism |
Needle
bar method and upper/lower bushing |
| Needle |
DC
x 27(excluding some subclass model) |
| Vertical
stroke of top feed dog |
3.5~8.5mm
(It differs with the machine’s specifications.) |
| Longitudinal
stroke of top feed dog |
1~7.5mm
(It differs with the machine’s specifications.) |
| Max. lift
of the presser foot |
7mm |
6.5mm |
5.5mm |
| 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 |
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