Shunfa S510-D4 Full Option Machine
The Shunfa S510-D4 is a high-speed, industrial, single-needle lockstitch sewing machine with a direct-drive motor. It’s designed for professional use on light to medium-weight fabrics. Its “D4” designation refers to a full-automatic set of functions: automatic thread trimming, automatic foot lifting, and automatic back-and-forth locking (needle tying at the start and finish of a stitch).
It offers a modern, computerized control interface, which allows easy configuration, and is optimized for speed, efficiency, and power savings.
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Description
Key Specifications & Features
Here are the important technical specs and features for the S510-D4:
| Specification | Detail |
|---|---|
| Type | 1-needle, lockstitch, straight stitch machine |
| Drive System | Direct-drive (servo) |
| Max Speed | ~5000 stitches per minute |
| Stitch Length | 0–5 mm |
| Presser Foot Lift (Height) | 5.5 – 13 mm (some sources: up to 15 mm) |
| Needle Type | DBX1, size #11–#18 |
| Materials Suitability | Light to medium-weight fabrics |
| Automatic Functions: | – Auto thread trimming – Auto foot lift / presser foot up-down – Auto locking / back-tack (tie-off start/end) |
| Oil System | Automatic oil pump / lubrication system |
| Control Interface | Computerized panel on the head. Includes a voice system (audio feedback) for function buttons. |
| LED Light | Built-in LED lamp; newer design with lower heat generation. |
| USB Port | Yes — includes a USB port (used for charging or plugging in accessories like fans, LEDs). |
| Energy Efficiency | Claims ~71% power saving compared to non-direct-drive; quieter operation. |
| Automatic Thread “Repair” / Stitch Quality | Has a system for “repairing” or correcting stitch quality to make stitches clean/neat. |
Use Cases / Pros & Considerations
Pros / Strengths:
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High productivity — because of high speed + automatic features, it’s great for production environments.
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Energy efficient — direct-drive motor saves power.
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Automation — automatic trimming, foot lift, and locking reduce manual steps and speed up workflow.
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Good stitch quality — designed to produce clean, consistent stitches with stable tension.
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User convenience — computer interface + voice prompts make it relatively easy to operate and program.
Considerations / Limitations:
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Cost — as a fully featured industrial machine, likely more expensive than simpler sewing heads.
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Maintenance — needs regular servicing (oil, calibration) like any industrial machine.
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Material limits — intended for light to medium fabrics; may not be optimal for very heavy or very delicate materials.
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Spare parts & service — depending on your location, parts or service support for Shunfa machines may be more limited than for more globally dominant brands.
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