JUKI LH-4578CFGF-7/NB FULL DIGITAL TWIN NEEDLE LOCKSTITCH HEAVY-DUTY SEMI-DRY HEAD LARGE HOOK

Juki LH-4578CFGF-7/NB Digital Twin Needle Heavy-Duty Lockstitch Sewing Machine with Semi-Dry Head and Large Hook

The Juki LH-4578CFGF-7/NB is an advanced full-digital twin-needle industrial lockstitch machine built for jeans and heavy-weight fabrics. Equipped with active tension, an active presser foot, and a high-capacity hook, it delivers superior seam quality, reduced operator fatigue, and increased productivity for demanding sewing environments.

Part of Juki’s LH-4500C Series, this machine combines precision electronics with rugged mechanical engineering, offering innovative features that set a new benchmark in heavy-duty sewing performance.

Key Features:

• Full Digital Control: Independently driven right and left active tension mechanisms automatically adjust needle thread tension based on sewing speed or bobbin thread levels, ensuring consistent stitch quality.

• Active Presser Foot: Automatically adjusts presser foot pressure according to sewing speed, improving fabric handling across varying thicknesses.

• Multilayer Detection: Built-in multilayered portion detection device helps maintain stable stitch pitch and well-tensed seams over bulky seams.

• High-Capacity Large Hook: 1.8-fold larger than standard, reducing bobbin changes by up to 40% and improving seam consistency on heavy materials.

• Motor-Controlled Horizontal Feed: Allows stitch pitch adjustments directly from the operation panel for fast setup changes.

• IoT & Data Management Ready: Integrates with JUKI Smart App and Android devices for wireless parameter adjustments, performance tracking, and troubleshooting.

• Operator Comfort: Dual-tone LED hand light reduces eye strain, while automatic panel backlight and sleep mode save energy.

• Energy Efficient: Consumes 30.8% less power than previous models, with up to 50.8% savings in standby mode.

• Low Noise & Vibration: Improved internal mechanics reduce operator fatigue during extended shifts.

Technical Specifications:

• Model: Juki LH-4578CFGF-7/NB

• Application: Jeans & heavy-weight materials

• Lubrication: Semi-dry head (hook section: minute-quantity lubrication)

• Feed System: Needle feed

• Max Sewing Speed: 3,000 stitches per minute

• Max Stitch Length: 7mm

• Needle Bar Stroke: 33.4mm

• Presser Foot Lift: Up to 13mm

• Needle System: DP × 5 (#21) – compatible sizes #16 to #23

• Thread Range: #30 to #3 (bobbin thread #20 for #8 to #3)

• Hook: Vertical-axis large hook (1.8-fold capacity)

• Free Space Under Arm: 120mm (H) × 266mm (D) × 87mm (jaw height)

• Lubricating Oil: JUKI New Defrix Oil No.1 (ISO VG7 equivalent)