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Overlock / Safety Stitch Machine for Extra Heavy-weight Materials – MO-6900G/MO-6900J Series

An advanced full-featured machine that is ideally suited to the sewing of extra heavy-weight materials. 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 machine securely clamps the material at the beginning of sewing as well as smoothly sewing multi-layered parts of the material to facilitate the sewing of extra heavy-weight materials.
  • 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.
  • The machine incorporates mechanisms that are both durable and reliable, such as the needle bar mechanism, utilyzing the upper and lower bushings, a cartridge type oil filter and cooling fan.
  • The machine is equipped as standard with a micro-lifter that helps reduce operator fatigue. The micro-lifter is designed to achieve optimum balance, not only reducing noise and vibration but also ensuring comfortable operation.
  • Needle thread heat remover and needle cooler prevent stitching troubles during times of high-speed sewing, thereby contributing to upgraded seam quality.
  • The machine comes standard with various adjusting mechanisms, such as a micro-adjusting mechanism, all of which can be easily adjusted to enable the machine to perform sewing under the best-suited conditions for any kind of material.

Description

Subclass Machine List

Materials Materials No. of needles No. of threads Needle
gauge
Overedging
width
No. of feed dog rows Stitch
length
Bottom
differential feed
ratio
Longitudinal stroke
of top-feed
dog
Presser
lifting
amount
Needle system Max.
sewing
speed
(sti/min)
MO-6900G Series
MO-6903G-0N6-3D1
(For splicing fabrics)
L~M 1 2 18.0mm 3 7mm 5mm DO×5
#16
5,500
MO-6904G-0F6-700
(For runstitching
extra heavy- weight
materials such as denim)
EH 3 4.8mm 5mm 1:0.7~1:1.75 8mm DO×5 #21 6,000
MO-6905G-0M6-700
(For overedging
carpets, mats for entrance halls, etc.)
10.0mm 7mm 7mm DC×1 #24 4,000
MO-6905G-0M6-7E0
(For overedging car mats)
MO-6914G-CH6-700
(For overedging jersey, etc.)
2 4 2.6mm 6.4mm 4mm 1:0.8~1:2 8mm DO×5 #18 6,000
MO-6916G-FF6-700
(For safety stitching extra heavy-weight materials such as denim)
5 4.8mm 4.8mm 5mm 1:0.7~1:1.75 DO×5 #21
MO-6916G-FH6-700
(For safety stitching extra heavy-weight materials such as denim)
6.4mm
MO-6900J Series
MO-6904J-0F6-700
(For runstitching
extra heavy- weight materials such as denim)
EH 1 3 4.8mm 3 5mm 1:
0.7~1:1.75
2.7~7 8mm DO×5 #21 6,000
MO-6914J-CH6-700
(For overedging
jersey, etc.)
2 4 2.6mm 6.4mm 4mm 1:0.8~1:2 DO×5
#18
MO-6916J-FF6-700
(For safety stitching extra heavy-weight materials such as denim)
5 4.8mm 4.8mm 5mm 1:0.7~1:1.75 DO×5 #21
MO-6916J-FH6-700
(Forsafety stitching extra heavy-weight materials such as denim)
6.4mm
MO-6916J-FF6-70
(For safety stitching bathrobe, etc.)
4.8mm DC×27 #16

 

Devices and Attachments

Model Part No. Description MO-6900G MO-6900J
Chain-off thread trimming device
T039 MAT-039001A0 One-touch type tape cutter and chain-off thread trimming device (electromagnetic type) For 110, 115, 220, 240V
MAT-039002A0 For 220, 380, 415, 440V
MAT-039003A0 For 110, 115, 220, 240V
MAT-039004A0 For 220, 380, 415, 440V
T048 MAT-048010A0 Pneumatic flat cutter (for overlock stitch machine)
MAT-048010B0
T050 MAT-050010A0 Pneumatic flat cutter (for safety stitch machine)
MAT-050010B0
Pneumatic chain-off thread suction device
MC-4 Specific to chain-off thread, pedal-operated
MC-5 Specific to chain-off thread
MC-8 Pneumatic chain-off thread + cloth chips
MC-9 Function of MC-8 + auto-lifter
MC-24 Pneumatic chain-off thread + cloth chips
*The aforementioned devices are not equipped with air regulator. Please purchase the following components when you need to regulate air pressure.
PF-0552010-B0 Pneumatic type (knee-operated)
GMD-01080000X2 Pneumatic type (pedal-operated)
F1021-003-000 Pneumatic type (with chain-off thread suction device)
GAS-12063000* One-touch connector *Selection parts instead of the tube connector
Auto-lifter
AK32 GAK-320000A0 Pneumatic type (knee-operated)
AK49 GAK-490000A0 Pneumatic type (pedal-operated)
AK52 GAK-520000A0 Pneumatic type (with chain-off thread suction device)
AK101 GAK-A01000A0 Pneumatic type (for servomotor)
[Reference] Combination table of “chain-off thread suction device” and “auto-lifer” which correspond to “chain-off thread trimming device”.

Chain-off thread trimming device + Chain-off thread suction device Auto-lifter
T039 MC-8 AK101 (JUKI servomotor
MC-9 MC-9 is equipped with auto-lifter
T041S or T042S + MC-4
MC-8 AK101 (JUKI servomotor)
MC-9 ― (MC-9 is equipped with auto-lifter.)

 

Specifications

MO-6900G Series
Model name MO-6904G MO-6914G MO-6916G
Stitch type 1-needle overlock 2-needle overlock Safety stitching
Stitch style in the U.S.A. 504 514 516
Max. sewing speed 6,000sti/min*
Stitch length 2.5 ~5mm 2.5 ~4mm 2.5 ~5mm
Needle gauge (mm) 2.6 4.8
Overedging width (mm) 4.8, 10.0, 18.0 6.4 4.8, 6.4
Differential feed ratio For gathering 1:1.75 (max. 1:3.8)
For stretching 1:0.7 (max. 1:0.6)
For gathering 1:2 (max. 1:3.8)
For stretching 1:0.8 (max. 1:0.6)
For gathering 1:1.75 (max. 1:3.8)
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)
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
Differential-feed adjusting method By lever (with micro-adjustment)
Weight of the machine head 28kg
Lubrication Automatic
Lubricating oil JUKI Machine Oil 18 (equivalent to ISO VG18)
Needle cooler Provided as standard (excluding some subclass model)
Needle thread heat remover Provided as standard
Micro-lifter
MO-6900J Series
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 6,000sti/min*
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
Differential feed ratio For gathering 1:1.75 (max. 1:3.8)
For stretching 1:0.7 (max. 1:0.6)
For gathering 1:2 (max. 1:3.8)
For stretching 1:0.8 (max. 1:0.6)
For gathering 1:1.75 (max. 1:3.8)
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
Micro-lifter

*sti/min means Stitches per Minute


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