The SPEEDWAY SW7-5D is a 5-thread safety stitch overlock machine built for high-volume production with integrated smart automation. The direct drive motor, automatic thread trimming, silent presser foot lifter, and step motor system that automatically adjusts presser foot pressure to fabric thickness combine to eliminate manual interventions and keep production moving at up to 7,500 SPM. The safety stitch function — a 3-thread overlock and 2-thread chainstitch sewn simultaneously — produces a stronger, more secure seam than a standard overlock alone. This is a complete setup shipped with table and stand included.
What's Included
- SPEEDWAY SW7-5D 5-Thread Smart Overlock Machine (ships assembled)
- Industrial table and stand
- Standard accessory kit
Key Features
- 5-thread safety stitch — combines a 3-thread overlock with a 2-thread chainstitch for a stronger, more secure seam than a standard overlock alone
- Step motor system automatically adjusts presser foot pressure to fabric thickness in real time — eliminates manual adjustment when transitioning between fabric weights
- Automatic thread trimming reduces operator intervention and cycle time on high-volume production runs
- Silent presser foot lifter for quieter, smoother operation in production environments
- Direct drive motor — no belt, lower maintenance, quieter operation, and more precise speed control
- Maximum speed of 7,500 SPM for sustained high-volume output
- Differential ratio range of 0.7–2.0 for handling stretch, woven, and layered fabrics without puckering or stretching
- Complete setup with table and stand — ready to install and run
Ideal For
- High-volume garment production requiring strong, secure seaming with the safety stitch configuration
- Operations handling variable fabric weights where automatic presser foot adjustment eliminates manual intervention
- Sportswear, workwear, and performance garments where seam strength and stretch control are critical
Technical Specifications
| Needle System | B27 / DCx27, #9-#18 |
| Motor | Direct drive servo motor (included) |
| Drive Type | Direct drive |
| Machine Type | 5-Thread Smart Overlock (Safety Stitch) |
| Number of Threads | 5 |
| Number of Needles | 2 |
| Needle Spacing | 2 mm |
| Stitch Width | 4 mm × 4.6 mm |
| Stitch Length | 0.8–4.6 mm |
| Differential Ratio | 0.7–2.0 |
| Presser Foot Lift | 10 mm |
| Maximum Speed | 7,500 SPM |
| Included | Complete setup with table and stand |
