Flat Buttonhole Sewing Machine
Description
SP-1790DS-S/K/SL Flat Buttonhole Supreme Sewing Machine
Advantages of flat Buttonhole sewing machine
- The knife is driven by a motor to reduce the noise and failure
- Improve stability and efficiency
- Motor pressing ,stable and accurate material stitching
- Convenient operation
- Lower temperature and avoid wrong position.
- Optional function: could add the auto feeding device, make sure the buttonholes more accurate
SP-1790
- Solenoid driven knife
- Slow thread cutting
- Spring driven pressing
- Icon display interface
- Five-phase motor
SP-1790DS
- Mechanical/electrical integrated design
- Motor driven knife
- Improved electric control parameter fast thread cut Motor driven pressing
- Teletext interface
- Close circuit step motor
Specification
| Model | SP-1790DS-S/K/SL
S:WOVEN TYPE K:KINTTING TYPE SL:LONG TYPE |
| Operation panel | Touch panel |
| Sewing speed | 4200 rpm in common use ,3300 rpm while using no-refueling shuttle (selected and purchased ) |
| Size of cutter | 6.4 – 31.8mm (1/4” -1/4”) |
| Width of bartack | The maximum 5mm (parts with special specifications : The max 10 mm) |
| Length keyhole seam | The maximum 41 mm (part with special specifications :The max 120 mm) |
| Needle thread tension | Tension of clamping electrical line tension unit |
|
Machine needle (equipment model while delivered) |
Dpx5 11-14 |
| Shuttle type | DP full-rotating shuttle Refueling free shuttle(optional ) |
| Rising volume of foot presser | 14 mm (17 mm Reversing side) |
| Automatic lifting and pressing foot device | Standard equipment (pulse motor type) |
| Drive mode of cutter | Motor drive |
| Number of standard pattern | 31 pattern |
| Number of Memorable pattern | 99 pattern |
| Coiling device of down thread | Head built-in |
| Drive model of machine head | Small Ac servo motor(Direct drive) |
| Electricity / Electricity Consumption | (Single phase) 220v-240/1000 VA |
| Refuel mode | No-refueling while using no-refueling shuttle(selected and purchased) |
| Engine oil | parts with rotating shuttle: engine oil(equal to ISO Vg7 ) |
| Weight | 60 kg |
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