Power & Feeding Control

The SW-4400N features a rectangular feed mechanism with unison feed (triple feed) that ensures smooth and accurate material handling, even with multiple layers of heavy fabrics. Its dual-tension system allows sewing with thick threads under high tension, producing strong, uniform seams on materials ranging from canvas and vinyl to leather and webbing.

Built for Heavy Materials

With a presser foot lift adjustable from 8mm to 14mm, the SW-4400N can easily accommodate thick assemblies without compromising stitch quality. A maximum stitch length of 9mm expands its versatility for different industrial sewing tasks, while automatic speed adjustment ensures ideal sewing conditions for consistent results.

Materials & Applications

The Speedway SW-4400N is engineered for strength and precision on heavy-duty projects, making it ideal for:

1. Cargo & industrial straps – safety belts, webbing, and heavy load-handling equipment
2. Automotive upholstery – car seats, headrests, and interior panels
3. Furniture upholstery – sofas, recliners, office chairs, and cushions
4. Leather goods – bags, saddlery, protective gear, and accessories
5. Canvas & vinyl projects – tarps, covers, tents, and heavy fabric enclosures
6. Multi-layer assemblies – thick seams, reinforced corners, and projects requiring strong, uniform stitches

Safety & Reliability

The integrated safety clutch protects the hook from damage by disengaging the drive if the machine binds, and it resets instantly with the push of a button. This, combined with the durable engineering of SPEEDWAY, makes the SW-4400N a long-lasting investment for any professional workshop.

Key Features

• Triple Feed (Unison Feed) with rectangular feed mechanism for smooth heavy-duty sewing
• Higher Presser Foot Lift: adjustable 8mm–14mm
• Maximum Stitch Length: up to 9mm
• Dual-Tension System for strong seams with thick threads
• Automatic sewing speed adjustment for consistent performance
• Safety Clutch to prevent hook damage and ensure reliability
• Vertical-axis large hook for extended bobbin capacity

Machine Specifications

• Model: SPEEDWAY SW-4400N
• Feed System: Triple Feed (unison feed) with rectangular feed
• Stitch Length: Max 9mm
• Presser Foot Lift: 8mm–14mm adjustable
• Needle System: DPx17 (#18–24)
• Tension: Dual-tension system for thick threads
• Hook: Vertical-axis large hook
• Safety System: Integrated safety clutch

A Complete Heavy-Duty Solution

The SW-4400N combines industrial strength, precision feeding, and protective safety systems in one powerful package. Whether you’re sewing cargo straps, car seats, sofas, bags, or leather goods, this machine delivers the seam quality, durability, and productivity professionals need for heavy-duty sewing applications.