JUKI LBH-1790A Series BUTTON STITCH MACHINE
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.
Cycle sewing
Twenty different programs can be registered, and as many as 30 different patterns can be stored in one program.
Continuous sewing
The machine 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.)
Supports many different button sewing specifications seperately
Specification
| Model | LBH-1790A | LBH-1795A | LBH-1796A |
| Sewing speed | Max. 4,200sti/min, Normal 3,600sti/min When the non-lubricated hook (optional) is used: 3,300sti/min 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") | 6.4~25.4mm | |
| Bartacking width | Max. 5.0mm (with special-specification part: Max. 10mm*) | Max. 5.0mm | |
| Buttonhole length | Max. 41mm (optional: 70mm, 120mm) | Max. 120mm | Max. 220mm |
| 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) | Parallel lifting 6mm | |
| 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 | 3-phase 200~240V/250VA | ||
| Lubrication | Only the hook section needs a minute quantityLlubrication. ✽ No lubrication is required when the non-lubricated hook (optional) is used. | ||
| Lubricating oil | Hook: JUKI New Defrix Oil No.1 (equivalent to ISO VG7) | ||
| Weight | Machine head (include motor) 55kg, Control box 6kg | ||