| 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 |
6.4~22.2mm (1/4″~7/8″) |
6.4~31.8mm (1/4″~1-1/4″) |
| Bartacking width |
Max. 4.0mm |
Max. 5.0mm (with special-specification part: Max. 10mm*) |
| Buttonhole length |
Max. 25mm |
Max. 41mm (optional: 70mm, 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 |
3-phase 200~240V/250VA |
| Lubrication |
Only the hook section needs a minute-quantity lubrication.
* 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 5.5kg |
Machine head (include motor) 55kg,
Control box 6kg |