Computer-controlled, High-speed, Buttonholing Machine
The Juki LBH-1790A 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 digitized to manage each sewing pattern individually.
Excellent operability by Digitization
- Higher productivity
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.
- Cycle sewing and continuous sewing.
- Cycle sewing
Twenty different programs can be registered, and as many as 15
different patterns can be stored in one program.
- Continuous sewing
The Juki LBH-1790A is able to continuously sew two or more different patterns without requiring the work clamp foot to be lifted. As may as 20 programs can be registered, and six different patterns can be stored in one program. (Related parts need to be exchanged for optional ones.)
- Cycle sewing
- All drive mechanisms are electronically controlled
- Electronic control of the material feed mechanism, needle feed mechanism, needle thread trimming mechanism, bobbin thread trimming mechanism, cloth trimming mechanism, presser lifter mechanism and other mechanisms has been achieved.
- All adjustment values are digitalized to enable the operator to set and store those values on the operation panel.
|Model Number||Juki LBH-1790A Series|
|Sewing speed||Max. 4,200sti/min, Normal 3,600sti/min
When the non-lubricated hook (optional) is used: 3,300sti/min
|Needle bar stroke||34.6mm|
|Size of cloth cutting knife||6.4~31.8mm (1/4″~1-1/4″)|
|Bartacking width||Max. 5.0mm (with special-specification part: Max. 10mm*)|
|Buttonhole length||Max. 41mm (optional: 70mm, 120mm) , LBH1795:120mm|
|Precision of needle throwing mechanism||0.05mm|
|Needle thread tension||Active tension (electronic thread tension control system)|
|Number of stitches||Automatically computed from the size of the buttonhole and stitch pitch|
|Needle (at the time of delivery)||DP×5 (#11J) #11J~#14J|
|Hook||DP type, full-rotary hook|
|Non-lubricated hook (optional)|
|Lift of the work clamp||14mm (17mm when the reverse-rotation needle-up function is used)|
|Auto-lifter||Provided as standard (stepping motor type)|
|Needle throwing system||Stepping motor|
|Cloth feeding system||Intermittent feed by stepping motor|
|Cloth cutting knife system||Stepping motor|
|Number of standard patterns||31 patterns|
|Number of patterns that can be input||Max. 99 patterns|
|Bobbin thread winder||Built-in the machine head|
|Machine head drive system||Compact AC servomotor (direct-drive system)|
|Power requirement/ Power consumption||Compact AC servomotor (direct-drive system)|
|Lubrication||Only the hook section needs a minute-quantity lubrication|
|Lubricating oil||Hook: JUKI New Defrix Oil No.1 (equivalent to ISO VG7)|
|Weight||Machine head (include motor) 55kg, Control box 6kg|
For all Industrial Sewing Machine Spare Parts, Needles & Accessories, click the link below to our Parent company, College Sewing Machine Parts Ltd, the UK’s largest Industrial Sewing Machine Spare Parts Stockist. Juki Industrial Parts Agents, sewing machine parts for the Juki LBH-1790A
Just fill out the form below with details of the machine on offer and we will see if we can beat or match the price.