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Computer-controlled, High-speed, Lockstitch, Button Sewing Machine
The Juki LK-1903B achieves sewing speed of 2,700sti/min. The machine’s starting, stopping, thread-trimming and automatic presser lifting speeds have been increased to significantly shorten total cycle time.
Description
Computer-controlled, High-speed, Lockstitch, Button Sewing Machine
Higher productivity
The Juki LK-1903B achieves sewing speed of 2,700sti/min. The machine’s starting, stopping, thread-trimming and automatic presser lifting speeds have been increased to significantly shorten total cycle time.
Excellent seam quality.
Needle thread grasping mechanism helps produce consistent knot tying at the beginning of sewing.
Many different sewing patterns.
The Juki LK-1903B is provided as standard with 50 different sewing patterns. The machine permits easy changeover of sewing patterns for effortless execution of an inexhaustible range of sewing specifications.
The Juki LK-1903B is also able to sew buttons using the same data used for the LK-1903 (Data in EP-ROM are enabled by conversion).
The machine is provided as standard with the active tension (electronic thread tension control mechanism).
Since the Juki LK-1903B is provided with an active tension mechanism, it is able to set a needle thread tension that matches various sewing conditions (such as thread, material and sewing speed) on the operation panel, store the data in memory and reproduce it.
The needle thread tension can be separated according to stitching type or portion of a seam, such as the beginning part of the seam, base stitched part, zigzag stitched part and end of the seam (fastening stitch).
When the operation panel is used in combination with the active tension, the needle thread tension can be set on a stitch-by-stitch basis. This helps eliminate undesired thread tension variations at a multi-layered part of a material or with sewing direction, thereby contributing to upgraded seam quality.
Technical Information
| Model Number | Juki LK-1903BB | Juki LK-1903B | Juki LK-1903B/BR35 |
|---|---|---|---|
| Max. sewing speed | 2,700sti/min※ | ||
| Button size | Type : Round-shaped, flat button Size : φ8~φ20mm 301 : φ8~φ20 |
Type : Round-shaped, flat button Size : φ8~φ32mm 301 : φ8~φ20 302 : φ10~φ20 OPTION : φ15~φ32 |
Type : Round-shaped, flat button (2-holed, 4-holed) Size : φ9~20mm For small button: φ10~φ15mm For medium-sized button: φ12~φ18mm (Those that are smaller than φ10mm or larger than φ18mm must be specially ordered.) Thickness: 1.8~3.5mm |
| Stitch length | 0.1~10mm (0.1mm step) | ||
| Needle bar stroke | 45.7mm | ||
| Lift of the work clamp foot | Max. 10mm | Max. 13mm | Max. 11mm |
| Auto-lifter | Provided as standard (stepping motor type) | ||
| Needle thread tension | Active tension (electronic thread tension control system) | ||
| Needle (at the time of delivery) | DP×17 (#11) | DP×17 (#14) | |
| Hook | Standard shuttle hook | ||
| Number of stitches that can be stored in memory |
Max. 20,000 stitches | ||
| Number of standard patterns | 34 patterns | 50 patterns | |
| Number of data that can be input | 200 patterns | ||
| Enlarging/Reducing facility | 20~200%(1% step), Pattern enlargement /reduction can be done by increasing /decreasing the stitch length | ||
| Memory medium | Internal-organs memory | ||
| Bobbin thread counter | Provided as standard (up/down method) | ||
| Bird’s nest preventing / Shorter-thread remaining functions |
Provided | – | – |
| Supplying and sorting of button | – | – | Vibration system |
| Button feed | Horizontal forced button-feed mechanism | ||
| Button feed mode | – | – | Automatic feed mode, non-feed mode, and small-lot sewing mode |
| Lubrication | Hook: minute-quantity lubrication | ||
| Lubricating oil | JUKI New Defrix Oil No.2 (equivalent to ISO VG32) | ||
| Sewing machine motor | Compact AC servomotor (direct-drive system) | ||
| Power consumption | 250VA | 250VA | 320VA |
| Weight | Machine head (include motor) 42kg, Control box 5.1kg |
Machine head (include motor) 42kg, Control box 5.1kg |
131kg (include machine head, table and BR35) |
