

Next-generation buttonholing system with inbuilt NFC and two-way data communication. Max sewing speed 4,200 sti/min, jump speed 200mm/s. All drive mechanisms electronically controlled — material feed, needle feed, thread trimming, cloth trimming and presser lifter. Active tension separately controllable for parallel and bartacking sections. Available in standard (LBH-1790AN) and shorter-thread remaining (LBH-1790ANB) versions.
The newly-developed shorter-thread remaining mechanism trims the thread short and eliminates the trouble of manual thread nipping.
Data on sewing machine adjustments made according to the product to be sewn can be transferred to a commercially-available Android tablet in contactless mode. This enables quick check for uniform settings as well as confirmation of conditions of sewing machines in a sewing line, thereby facilitating setup changes. The operation panel is also provided as standard with a USB port. Data management and software update can be carried out with ease using a USB thumb drive. Data items of sewing can be numerically managed to ensure "stable quality" and "reduction in time required for setup changes". Quantified sewing data can be externally taken from the sewing machine using an Android tablet or USB thumb drive. *Android OS Version 6.0 is recommended to use JUKI Smart APP. (Operation is confirmed with respect to Versions 5.0 and later. ) Contact JUKI distributor in your area for how to use the application software.
The maximum sewing speed is 4,200 sti/min., and the jump speed is 200 mm/s. The cycle time has been further reduced for continuous sewing.
Twenty different programs can be registered, and as many as 30 different patterns can be stored in one program.
The basting stitch is effective on elastic materials such as knits. Basting stitch: Since the needle thread is tucked in without fail, it will never jut out of the buttonhole seams. Basting stitch can be sewn by nine rounds.
It is able to store 99 different patterns in its memory, which can be selected as desired from the operation panel.
| Specification | Value |
|---|---|
| Max. Sewing Speed | 4,200 sti/min (normal: 3,600 sti/min) |
| Needle Bar Stroke | 34.6 mm |
| Buttonhole Length | Up to 41mm (standard) / Up to 25mm (ANB) / Optional 70mm, 120mm |
| Bartacking Width | Max 5.0mm (standard) / Max 4.0mm (ANB) |
| Needle Thread Tension | Active tension — separate control for parallel & bartacking sections |
| Standard Patterns | 31 patterns |
| Max. Patterns Storable | 99 patterns |
| Work Clamp Lift | 14mm (17mm with reverse-rotation needle-up) |
| Auto-Lifter | Stepping motor type — standard |
| Needle Throwing | Stepping motor |
| Cloth Feeding | Intermittent feed — stepping motor |
| Lubrication | Hook: minute-quantity only |
| Power Consumption | 250 VA |
| Machine Head Weight | 55 kg |
* Specifications subject to change without notice. Contact us for the latest information.