Product features
The sophisticated-form machine with excellent operability and productivity. The single-thread, chainstitch, button sewing machine, which is frequently used for sewing buttons on men's wear and blouses under different sewing conditions, has been redesigned with its capabilities upgraded.
Thread-fray-prevention ON/OFF changeover mechanism
The machine is provided as standard with a "thread-fray-prevention ON/OFF changeover mechanism” to help produce beautiful seams with added durability.

Speedy sewing
The machine sews buttons with an optimum number of stitches; 8, 16 or 32, according to the sewing conditions.
Attachments
The attachments used for your conventional machines are applicable as they are.
Stitch shape can quickly be changed over between and button-hole configurations (only for MB-1377)
Stitch shape can easily be changed over between and button-hole configurations only by operating the lever. In addition, this single machine is able to sew two different kinds of buttons to save space and increase availability. (MB-1377)

Specifications
| Model name | MB-1373 | MB-1377 |
|---|---|---|
| Max. sewing speed | 1,500sti/min* | |
| Number of stitches | 8,16 and 32 stitches | |
| Needle (at the time of delivery) | TQ×1(#16)#14~20 | |
| Feed length (crosswise feed) | 2.5~6.5mm | |
| Feed length (lengthwise feed) | 0~6.5mm | 0~4.5mm |
| Stitching shape | ||
| Thread-fray-prevention ON / OFF changeover mechanism | Provided as standard | |
| Stitching shape changeover type | - | Lever change-over type |
| Applicable button | Round-shaped flat button (2-holed, 4-holed) | |
| Shank button, Wrapped-around button, Snap, Label, Metal button, Stay button (exclusive attachments have to be used) | ||
| Button size | φ10~28mm | |
| Thickness of button | 1.8~3.5mm (options max. 5mm) | |
| Needle bar stroke | 48.6mm | |
| Lift of the presser foot | 9mm | |
| Sewing system | Single thread chainstitch | |
| Lubrication | By an oiler | |
| Lubricating oil | JUKI New Defrix Oil No.1 (equivalent to ISO VG7) | |
| Machine head weight | 24kg | |
| Power requirement / Motor used | Single- or 3-phase / 200W (1/4HP), General-purpose motor |
*"sti/min" stands for "Stitches per Minute."
Catalogue
The MB-1370 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.
Data sheets, photos, videos and specifications: Juki.
Other models · Button Sewing Machine
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