Product features
High-quality machine with easier operation and increased reliability. The MO-6900S Series is a new and powerful overlock/safety stitch machine that has been developed to offer increased reliability and ease-of-use, while upgrading seam quality at higher sewing speeds. It responds to a wider range of materials and processes to finish high-quality soft-feeling seams. With the operating noise having been reduced and increased durability ensured, the cost-effective MO-6900S Series is a leading machine in the new era.
The machine ensures both beautiful and upgraded seam quality at higher speeds
Since the machine comes with a needle-thread take-up mechanism as well as a looper thread take-up mechanism, to offer upgraded responsiveness from light- to heavy-weight materials with a lower applied tension, it achieves well-tensed soft-feeling seams that flexibly correspond to the elasticity of the material at the maximum sewing speed of 8,000 to 8,500sti/min. 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.

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 feed mechanism and upper looper unit as well as coming standard with a cartridge type oil filter and cooling fan, thereby ensuring enhanced reliability.

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 (excluding the LB Series). This eliminates both the waste of resources and unwanted extra costs.

The machine has been developed with the intention of providing an extended service life
The machine incorporates various mechanisms as standard, such as a differential-feed micro-adjustment mechanism and an external adjustment mechanism for adjusting the feed dog inclination as well as increasing the differential feed ratio, which can be easily adjusted to finish seams that perfectly match the material to be used. 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.

A variety of subclass machines is available

Specifications
| Model name | MO-6904S | MO-6914S | MO-6916S |
|---|---|---|---|
| Stitch type | 1-needle overlock | 2-needle overlock | Safety stitching |
| Stitch style in the U.S.A. | 504 | 514 | 516 |
| Max. sewing speed | 8,500sti/min* | 8,000sti/min* | |
| Stitch length | 0.8~4mm | 1.5~4mm | |
| Needle gauge (mm) | - | 2.0, 2.4, 3.2 | 2.0, 3.2, 4.0, 4.8, 4.8+2.0 |
| Overedging width (mm) | 1.6, 3.2, 4.0, 4.8 | 3.2, 4.0, 4.8 | 3.2, 4.0, 4.8, 6.4 |
| 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 bar bushing | Upper/lower bushing method | ||
| Needle | DC×27(excluding some subclass model) | ||
| Max. lift of the presser foot | 7mm(excluding some subclass model) | ||
| Max. presser foot pressure | 63.7N (6.5kgf) | ||
| 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 | ||
| Needle thread heat remover | Provided as standard | ||
| Micro-lifter | Provided as standard |
* “sti/min”stands for “Stitches per Minute.”
When you place orders

Subclass machine list

Catalogue
The MO-6900S Series documents Juki publishes, on their own site. They open in a new tab.
And the catalogues Juki publishes for their whole range.
Apparel General Catalog (PDF)Non-apparel General Catalog (PDF)Essential Parts List
The file is published and updated by the manufacturer; it is not copied here, so nobody downloads an outdated version.
Product information, photographs and specifications: Juki. No prices or stock here: ask us and we will get back to you.
Other overlock / safety stitch machine models
Tell us the operation you need to solve and we will reply with the right configuration and the lead time.
