SPEEDWAY SW-4420-L25 Double Needle Long Arm Heavy Duty
SPEEDWAY SW-4420-L25 Double Needle Long Arm Heavy Duty
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Pickup available at: 8701 Catbriar Bay Way, Orlando, FL 32829
Usually ready in 2–5 days (sometimes sooner).
View store informationSPEEDWAY SW-4420-L25 — Double Needle Long Arm Heavy Duty Unison Feed Walking Foot Sewing Machine
Double Needle • Long Arm • Heavy Duty Upholstery Power
The SPEEDWAY SW-4420-L25 is a double-needle, long-arm, heavy-duty unison feed walking foot sewing machine engineered for high-demand upholstery, automotive, marine, and leather applications. Built on the same rugged platform as the SW-4400-L25, this model adds twin-needle capability for perfectly parallel seams, decorative topstitching, and reinforced structural stitching on large and bulky workpieces.
Key Features
- Double Needle Configuration: Sew two perfectly parallel seams in one pass for decorative or reinforced stitching.
- 25” Long Arm Design: Extended reach with approximately 6.5” underarm height for large cushions, panels, and covers.
- Standard 3/8” Gauge Set: Supplied with 3/8" (9.5 mm) needle spacing; alternative gauge sets available upon request.
- Unison Feed System: Walking foot, needle feed, and bottom feed move together for flawless material control.
- 900W Servo Motor: High-torque, quiet, and energy-efficient motor for heavy-duty sewing.
- Needle Positioner: Automatically stops needle up or down for easier turning and precision work.
- Pneumatic Presser Foot Lift: Lift the presser foot instantly by pressing the pedal backward.
- Pneumatic Reverse Function: Reverse stitching activated by a button near the needle—no need to reach across the long arm.
- High Presser Foot Lift: Adjustable from approximately 8 mm up to 20 mm for thick assemblies.
- Dual-Tension System: Stable stitching with medium to heavy threads.
- Safety Clutch: Protects the hook from damage and resets easily with a push button.
Applications
- Furniture upholstery: sofas, chairs, cushions, decorative bands.
- Automotive interiors: seats, bolsters, door panels, armrests.
- Marine and RV upholstery: boat seating, cockpit cushions, interior panels.
- Leather and vinyl goods: handbags, seating, motorcycle seats.
- Canvas and technical fabrics: tarps, covers, industrial panels.
Technical Specifications
| Model: | SW-4420-L25 |
| Needles: | 2 (Double) |
| Feed Mechanism: | Unison Feed Walking Foot |
| Arm Length: | Approx. 25” |
| Underarm Height: | Approx. 6.5” |
| Gauge Set: | Standard 3/8” (9.5 mm), others available |
| Max Stitch Length: | Up to 9 mm |
| Presser Foot Lift: | Approx. 8–20 mm (manual / knee / pneumatic) |
| Max Speed: | Up to approx. 1,800 stitches per minute* |
| Needle System: | DPx17 (#18–#24) |
| Motor: | 900W Servo Motor |
| Lubrication: | Manual lubrication with oil pan |
| Air Requirement: | External air compressor (for pneumatic functions) |
Advantages
- Double-needle productivity with clean, parallel seams.
- Extended long-arm workspace for large upholstery projects.
- Pneumatic controls significantly reduce operator fatigue.
- Powerful, stable feeding on thick and layered materials.
- Complete industrial package ready for production.
The SPEEDWAY SW-4420-L25 is the ideal solution for professionals who need long reach, twin-needle precision, and heavy-duty reliability. From decorative upholstery seams to reinforced automotive and marine stitching, this machine delivers industrial performance with maximum operator comfort.
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