Built for Extra Heavy Leather & Thick Thread

• Extra heavy-duty construction for real saddle, harness, holster and tactical gear work.
• Handles very thick leather, stacked layers, foam-backed and padded materials with ease.
• Designed to run heavy bonded thread (within machine limits) for bold, high-strength seams on leather and webbing.
• Unison feed walking foot (bottom feed + needle feed + walking foot) keeps all layers moving together, preventing slipping or uneven stitch length on bulky assemblies.

This is not a light upholstery machine—it’s a true extra-heavy workhorse for serious leather and industrial shops.

Cylinder-Bed Advantage

• Cylinder-bed design gives you access where flat-bed machines cannot reach:
• Round and tubular pieces
• Closed or pre-assembled items
• Deep gussets, corners and tight radii
• Perfect for saddles, harness parts, bags, motorcycle seats, heavy straps, cases and 3D leather projects.
• Makes it easier to control heavy articles while still maintaining a straight, even stitch line.

Direct-Drive Power & Slow-Speed Control

• Direct-drive servo motor mounted directly on the head for:
• High torque at slow speeds (critical for heavy leather)
• Less vibration and lower noise
• Better energy efficiency than belt-driven systems
• Excellent creep control (stitch-by-stitch movement) for precise positioning on corners, reinforcements and decorative lines.

You get both power for thick jobs and control for detail work.

Materials & Applications

The SPEEDWAY SW-441 is ideal for extra heavy work such as:

1. Saddlery & harness – saddles, harness straps, breastplates, tack and equestrian gear.
2. Holsters & tactical gear – gun holsters, magazine pouches, tactical belts, molle gear.
3. Belts & straps – heavy leather belts, industrial straps, lifting belts, safety straps.
4. Motorcycle & custom seats – heavy leather or vinyl over foam and multi-layer builds.
5. Heavy bags & cases – tool bags, instrument cases, protective covers and heavy-duty leather goods.

Any time you need long, strong stitches in extremely tough materials, the SW-441 is the right category of machine.

Key Features

• Single needle extra heavy duty cylinder-bed lockstitch machine
• Unison feed walking foot: bottom feed + needle feed + walking foot
• Direct-drive servo motor for high torque, low noise and fine speed control
• Built for extra heavy leather, thick webbing, heavy canvas and multi-layer upholstery
• Capable of sewing with heavy thread suitable for saddles, harness and heavy leather goods (within class limits)
• High presser foot lift to clear thick stacks and step over heavy seams
• Extra-strong needle bar and feeding system for demanding applications
• Heavy-duty frame and components for continuous professional use

Technical Specifications (typical configuration)

Values below are typical for this heavy-duty class; exact figures may vary slightly by setup.

• Model: SPEEDWAY SW-441
• Machine Type: Single-needle extra heavy-duty cylinder-bed walking foot (unison feed)
• Stitch Type: Lockstitch
• Feed System: Walking foot + needle feed + bottom feed (unison feed)
• Material Range: Extra heavy leather, thick webbing, heavy canvas, multi-layer upholstery
• Max Stitch Length: long stitch capability (heavy-duty range, suitable for decorative and structural seams)
• Presser Foot Lift: very high lift (hand and knee), designed for extra-thick assemblies
• Needle System: Heavy-duty system (e.g. 794 / DYx3 class), sizes chosen according to thread and material 130-280
• Thread Range: suitable for thick bonded threads commonly used in saddlery, belts and harness (within machine specs)
• Motor: Integrated direct-drive servo motor, single-phase (typically 110V or regional voltage as specified)
• Lubrication: Central lubrication for heavy-duty operation

What’s Included

• SPEEDWAY SW-441 extra heavy-duty cylinder-bed machine head
• Direct-drive servo motor, mounted and wired
• Industrial table & stand, fully assembled
• Built-in bobbin winder and thread stand
• Heavy-duty presser feet, basic needle set and accessory kit (may vary by batch)