Description
Jack A4S Semi-Dry Computerized Lockstitch Machine
Sealing Oil Pan, Oil Free
Oil is stored in the sealed pan which is integrated into the machine head, effectively prevents oil leakage and oil staining, realize clean sewing for your valuable products.
Scientific Design, For Kinds Of Fabrics
Optimized thread take-up and feeding mechanism enlarge the sewing range, suitable for various kinds of fabrics like jeans, yarn and lace.
Jack A4S is suitable for all different types of materials
Oil Feeding Reminder
New function for oil level reminding, makes easy and fast to adding oil.
Bird’s Nest Prevention Device
Makes the product free from nest after start sewing, ensure the thread tear as shorter as 3mm. (only for model A4S-N)
Semi Dry Head, Clean Sewing
DLC needle bar and bearing for thread take-up, not only durable but also makes the machine head free from oil staining by using special grease.(only for model A4S-W)
Technical Information
| Model Number | A4S | A4S-H | A4S-7 | A4S-7H |
|---|---|---|---|---|
| Needle | DBx1 11-18# | DPx5 18-21# | DBx1 11-18# | DP×5 18-21# |
| Thread Number | 2 | 2 | 2 | 2 |
| Stitch Length（mm） | 5 | 5 | 7 | 7 |
| Height of Presser Foot（mm） | 5-13 | 5-13 | 5-13 | 5-13 |
| Sewing Speed（S.p.m） | 5000 | 3500 | 3500 | 3500 |
| Auto Matic Presser Lifting | Standard | Standard | Standard | Standard |
| Eletronic Tension Post | Standard | Standard | Standard | Standard |
| Thin Material | √ | – | √ | – |
| Medium-heavy Material | √ | – | √ | – |
| Heavy Material | – | √ | – | √ |
| Volume（mm） | 645*248*550 | 645*248*550 | 645*248*550 | 645*248*550 |
| Weight(kg) | 40/46 | 40/46 | 40/46 | 40/46 |
| Model Number | A4S-N | A4S-W | A4S-WN |
|---|---|---|---|
| Needle | DB×1 11-18# | DB×1 11-18# | DB×1 11-18# |
| Thread Number | 2 | 2 | 2 |
| Stitch Length（mm） | 5 | 5 | 5 |
| Height of Presser Foot（mm） | 5-13 | 5-13 | 5-13 |
| Sewing Speed（S.p.m） | 5000 | 5000 | 5000 |
| Auto Matic Presser Lifting | Standard | Standard | Standard |
| Eletronic Tension Post | Standard | Standard | Standard |
| Thin Material | √ | √ | √ |
| Medium-heavy Material | √ | √ | √ |
| Heavy Material | – | – | – |
| Volume（mm） | 645*248*550 | 645*248*550 | 645*248*550 |
| Weight(kg) | 40/46 | 40/46 | 40/46 |
