BACK LATCHING SEAMING
Choose model
Choose Model
SPECIFICATION
| Specification index | ||
|---|---|---|
| ① Thread numbers | ④ Sewing Fabric/Upper Looper capacity | ⑦ Overedge width |
| ② Model | ⑤ Feed dog type | ⑧ Device |
| ③ Sewing types | ⑥ Needle gauge | ⑨Motor U：U Series H：H Series |
| L7 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Manual | 737L-504M-7-04/BK/(⑨) | 1 | 3 | – | 4 | 0.7-2 | 3.6 | 5 | H / U | 7500 |
| Manual | 747L-514M-7-2⑦/BK/(⑨) | 2 | 4 | 2 | 3,4 | 0.7-2 | 3.6 | 5.5 | H / U | 7500 |
| Manual | 747L-514H-7-2⑦/BK/(⑨) | 2 | 4 | 2 | 4,5 | 0.7-2 | 3.6 | 7 | H / U | 6500 |
| Simplied Fully Auto | 747L-514M-3-24/ECA/BKT/⑨ | 1 | 3 | – | 4 | 0.7-2 | 3.6 | 7 | H / U | 7000 |
| Fully Auto | 737L-504M-3-0⑦/BKF | 1 | 3 | – | 3,4,5 | 0.7-2 | 3.6 | 6 | H / U | 7500 |
| Fully Auto | 747L-514M-3-2⑦/BKF | 2 | 4 | 2 | 3,4 | 0.7-2 | 3.6 | 5.5 | H / U | 7500 |
BACK LATCHING SEAMING
To prevent seam looseness, turn over the thread and then insert into overlock seaming at the beginning of sewing. For sleeve and sideway sewing of underwear, sportswear etc.
Remark 1:
Reduce needle thread’s tension, and adjust
fabric guide to get the special outlook
showing the needle thread on top side.
Remark 2:
Replace upper looper by blind looper LP231
to make 2-thread overlock stitch
| Operation | Code | Description | Applicable Series | Drive Type | |
|---|---|---|---|---|---|
| Manual | BK | Rotary Plate |  | 737L 747L | To equip with servo motor for needle position function is optional and recommended. |
| Simplified Fully Auto | BKT | 1. Simplified type, back latch
length 3cm. 2. With ECA cutter, Needle plate suction channel for thread-end down turning . |  | 747L | 700L； Pneumatic type servo control system |
| Fully Auto | BKF | 1. With VT suction trimmer 2. Multi-operation mode setting 3. Thread-end side turning. Back latch length is adjustable (Min. 1cm) | 737L 747L | BKF； Pneumatic type servo control system | |