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A7 Digital feeding Lockstitch single needle sewing machine
A7 Digital feeding Lockstitch single needle sewing machine
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Smart Sewing Technology
Digital Feed Dog Movement: Four selectable elliptical movements—normal, smooth, soft, or heavy-duty—adaptable to fabric type.
Fabric Thickness Detection: Automatic adjustment ensures consistent stitch length across seams and uneven surfaces.
Digital Stitch Length: Step motor-controlled stitch adjustment eliminates mechanical levers, offering quieter, button-based control.
Ornamental & Functional Sewing
Programmable ornamental stitch patterns with alternating stitch lengths.
Customizable designs for decorative or functional applications.
Performance & Efficiency
Silent Digital Bartack: Stepper motor technology reduces noise, improving operator comfort.
Automatic Thread Trimmer and Presser Foot Lifter for efficiency.
Short Thread Function: Minimizes leftover thread, prevents fabric damage, and reduces waste.
Bobbin Winder with Automatic Cut for faster preparation.
Durability & Maintenance
Sealed Oil Pan prevents dust entry and ensures reliable lubrication.
260 mm Arm provides extended working space.
Elongated Needle Bar Compass for greater stitching precision.
Ease of Use
Electric Tension Disc Opener for simplified threading.
Voice Guide Assistance: Interactive system provides function tutorials, error alerts, and troubleshooting suggestions.
Connectivity (Optional)
Industry 4.0 Ready: Integrated Wi-Fi module (with Jack gateway) allows parameter adjustments and productivity monitoring via mobile application.
See all SpecsManufacturer Warranty
12 Month manufacturer warranty
Free Service
12 Month Free Service from Invoice Date
Distributor Warranty
3 Month Distributer Warranty
Designed in China
This next-generation digital lockstitch sewing machine is engineered for precision, flexibility, and ease of use in modern garment production. With digital feed dog movement, fabric thickness detection, and programmable stitch patterns, it delivers consistent stitch quality even on uneven or heavy-duty fabrics. The integration of stepper motor technology allows quiet digital bartack operations, digital stitch length adjustment, and short-thread trimming, while the sealed oil pan ensures a clean, low-maintenance system. Optional Industry 4.0 connectivity provides advanced monitoring and control, making this sewing machine a future-ready solution for professional manufacturing environments.
A7 Series — Model Comparison
| Specification | A7-D | A7-D-7 | A7-DH |
|---|---|---|---|
| Needle size | DBx1 11–18# | DBx1 11–18# | DPx5 18–21# |
| Suitable material | Light / medium; 5 mm stitch | Medium / heavy; 7 mm stitch (e.g., home textiles, curtains, non-woven) | Heavy duty; 7 mm stitch (e.g., denim, home textiles, disposable slippers) |
| Maximum speed | 4000 rpm | 3500 rpm | 3500 rpm |
| Maximum stitch length | 5 mm | 7 mm | 7 mm |
| Needle stroke | 31 mm | 31 mm | 35 mm |
| Feed dog height | 0.8 mm | 0.8 mm | 1.2 mm |
Common Specifications
| Sewing space | 262 × 130 mm |
| Presser foot lift (manual / auto / knee) | 5 mm / 9 mm / 13 mm |
| Volume (L×W×H) | 690 × 295 × 550 mm |
| Net / Gross weight | 40 kg / 46 kg |
Applicable Fabric (summary)
- A7-D: Light & medium woven/knitted fabrics (5 mm stitch)
- A7-D-7: Medium & heavy materials — home textiles, curtains, non-woven (7 mm stitch)
- A7-DH: Heavy duty — denim, home textiles, disposable slippers (7 mm stitch)