Jack W4 Flat Fed Interlock

he Jack W4 Flat Bed Interlock is a high-speed industrial sewing machine ideal for stretchy fabrics like knits and activewear.

Key Specs:

• Speed: Up to 5,000 SPM.
• Stitch Type: Flat-bed interlock (3-needle/4-thread options).
• Presser Foot Lift: Manual up to 6 mm.
• Needle Gauge: 4.0 mm – 5.6 mm adjustable.
• Motor: Energy-efficient direct-drive motor.
• Lubrication: Automatic oil system.

Features:

• Smooth stitching on knits and stretchy materials.
• Quiet, durable, and energy-efficient.
• Compact and versatile for garment production.

Perfect for T-shirts, sportswear, and lingerie!