Function:
- Performs:
- Double needle lockstitch sewing
- Parallel seam stitching
- Decorative seaming
- Suitable for:
- Shirts
- Uniforms
- Jeans
- Overcoats
Key Features:
- High-speed sewing performance up to approximately 4500 stitches/min
- Direct-drive system for:
- Low noise
- Reduced vibration
- Energy-saving operation
- Automatic thread trimming system
- Micro-oil lubrication system helps prevent fabric staining
- Synchronized feeding system helps prevent material slippage between layers
- Produces clean and consistent two-row parallel stitching
Technical Highlights:
- Stitch length: 0–4 mm
- Needle system: DP×5 (#11–#16)
- Needle gauge: 1/4″
- Presser foot lift:
- Hand: 7 mm
- Knee: 13 mm
Material Range:
- Light fabrics
- Medium fabrics
- Heavy materials including denim depending on configuration
Applications:
- Jeans and denim products
- Shirts and uniforms
- Jackets and coats
- Decorative parallel stitching
- General garment manufacturing
Summary:
JU 8422 / 8722-D4-S is a computerized direct-drive double needle lockstitch sewing machine built for high-speed parallel stitching, clean seam quality, and efficient industrial garment production, especially for jeans, uniforms, and decorative sewing applications.





