SPEEDWAY SW-4420-L18 Double Needle 3/8" Long Arm Heavy Duty Unison Feed Walking Foot Sewing Machine Assembled with Servo Motor, Table and Stand

Key Features

• Extended Clearance Area: 18" long arm with ~6.5" height for easier handling of bulky items.
• Twin-Needle 3/8" (10 mm) Gauge: Consistent, professional parallel seams for heavy applications.
• Unison Walking Foot with Rectangular Feed: Helps prevent slippage and keeps stitch formation uniform on thick or layered materials.
• Higher Presser Foot Lift: Adjustable range supports multi-layer builds common in upholstery and leatherwork.
• Maximum Stitch Length: Up to 9 mm for versatile topstitching and assembly tasks.
• Safety Clutch: Protects the hook mechanism and can be quickly reset.
• Dual-Tension Capability: Supports higher thread tensions for thick thread work.
• Needle System: DPx17, typically sizes #18–24 for heavy materials.
• Manual Lubrication System: Integrated oil pan and service points for controlled maintenance.
• High-Torque Servo: Quiet operation with strong low-speed control for precise starts and corners.
• Fully Assembled Package: Delivered ready to work with machine head, industrial table, stand, and servo motor.

Applications

Upholstery, leather goods, canvas and synthetics, automotive interiors, bags, protective covers, awnings, and other large-format or heavy-duty projects where long, straight seams and parallel rows are essential.

Technical Specifications

• Configuration: Twin-needle lockstitch
• Needle Gauge: 3/8" (10 mm)
• Max. Sewing Speed: Up to 2,500 sti/min
• Max. Stitch Length: 9 mm
• Presser Foot Lift: By hand 9 mm / by knee 16 mm
• Needle System / Sizes: DPx17, #18–24 (typical)
• Feed Mechanism: Unison walking foot with rectangular feed
• Hook System: Large-capacity rotary hooks with safety clutch
• Work Space (Throat): 18" length x ~6.5" height
• Motor: 900W energy-efficient servo
• Lubrication: Manual with oil pan

Conclusion

The Speedway SW-4420-L18 merges the industrial strength of a long-arm walking-foot platform with the precision of a twin-needle 3/8" (10 mm) setup. Its extended workspace, stable feed system, and high-torque servo deliver production-grade, parallel stitching on leather, canvas, and multi-layer upholstery—day in, day out.