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Computer-controlled, High-speed, Buttonholing Sewing System

LBH-1790AN Series
Management of sewing performance and sewing machine by the utilization of IoT (Internet of Things).Management, browsing and editing of data can be carried out on the application software.

LBH-1790ANB (Shorter-thread remaining functions)

The length of remaining bobbin thread becomes shorter, less than 2.5mm on average.The newly-developed shorter-thread remaining mechanism trims the thread short and eliminates the trouble of manual thread nipping.


The LBH-1790AN Series follows the world’s highest sewing speed and dry-head mechanism of its predecessor model. In addition, this machine comes with the latest model operation panel which is installed with a USB port. Furthermore, all drive mechanisms have been digitalized to manage each sewing pattern individually.

LBH-1795AN (120mm presser type)

The knife supports sewing lengths of 41mm at the maximum. Since the LBH-1795ANS is provided as standard with the 120mm presser, it is capable of sewing 120mm long buttonholes. The LBH-1795ANS is capable of sewing long buttonholes such as belt holes in car seats. In addition, it is applicable to the sewing of buttonholes in men’s shirts (continuous sewing of two buttonholes and the use of two units of sewing machines), etc.

LBH-1796AN (220mm presser type)

The LBH-1796AN is a subclass model of the LBH-1790AN Series. This product is provided with a 220mm work clamp foot. It follows the world’s highest sewing speed, deeply recessed shape of the machine head and dry-head mechanism of the existing LBH-1790AN. In addition, the LBH-1796AN can also be used as a simplified indexer to sew three buttonholes in a row.

Model name LBH-1790ANB LBH-1790AN LBH-1795AN LBH-1796AN
Sewing speed Max. 4,200sti/min, Normal 3,600sti/min When the non-lubricated hook (optional) is used: 3,300sti/min
Size of cloth cutting knife 6.4~22.2mm (1/4″~7/8″) 6.4~31.8mm(1/4″~1-1/4″) 6.4~25.4mm
Bartacking width Max. 4.0mm Max. 5.0mm (with special-specification part: Max. 10mm*) Max. 5.0mm
Buttonhole length Max. 25mm Max. 41mm (optional: 70mm, 120mm) Max. 120mm Max. 220mm
Lift of the work clamp 14mm (17mm when the reverse-rotation needle-up function is used) Parallel lifting 6mm
Number of standard patterns 31 patterns
Number of patterns that can be input Max. 99 patterns
Machine head drive system Compact AC servomotor (direct-drive system)
Needle (at the time of delivery) DP×5(#11J)#11J~#14J

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