Basic Product Details
Product Name: Jack JK-58450B Split Bar Double Needle Lockstitch Machine
Brand: Jack
Model Number: JK-58450B / JK-58450J
Machine Type: Split Needle Bar Double Needle Lockstitch Machine / Twin Needle Corner Sewing Machine
Stitch Type: Double Needle Lockstitch (Stitch Type 301)
Condition: New
Usage/Application: Pocket Attaching, Collars, Jeans, Trousers, Jackets, Uniforms & Corner Turning Seam Operations
Suitable Fabrics: Light, Medium, and Heavy Fabrics (Cotton, Denim, Canvas, Blends)
Product Specifications Table
| Feature / Parameter | Technical Specification |
| Max Sewing Speed | 3000 4000 SPM (Stitches Per Minute) |
| Max Stitch Length | 5 mm (Adjustable) |
| Needle Bar Mechanism | Split Needle Bar (Disengageable Left/Right Needle) |
| Standard Needle Gauge | 1/4 inch (6.4 mm) (Optional: 1/8", 3/16", 5/16", 3/8") |
| Presser Foot Lift Height | Manual: 7 mm / Knee Lifter: 13 mm |
| Needle System | DPx5 (#11 to #22) |
| Motor Type | Integrated Direct Drive Power-Saving Servo Motor |
| Control Interface | Smart Digital LCD Display Control Panel |
| Hook Type | Double-Capacity Rotary Hooks |
| Auto Functions | Auto Thread Trimmer, Auto Backtack, Auto Foot Lifter, Needle Positioner |
| Power Consumption | 220V / 50Hz (Energy saving up to 70%) |
| Lubrication System | Automatic Centralized Pump Oil System |
Key Features & Highlights
Split Needle Bar Mechanism: Disengageable left and right needle bars allow operators to stop one needle independently for crisp 90-degree corner stitching on pockets, collars, and waistbands.
Direct Drive Servo System: Built-in energy-saving direct-drive motor delivers immediate response, low vibration, ultra-quiet performance, and up to 70% power savings.
Synchronized Needle Feed: Synchronized needle-and-feed mechanism ensures clean parallel twin-row stitching without fabric puckering or slipping.
Digital Control Panel: Integrated smart LCD interface allows easy control over sewing speed, automatic backtacking cycles, and thread trimming functions.
Large Capacity Rotary Hooks: Heavy-duty double-capacity hooks allow longer stitching runs with fewer bobbin replacements, maximizing production uptime.
Detailed Product Description
The Jack JK-58450B is a high-speed, direct-drive double needle lockstitch machine equipped with a Split Needle Bar mechanism designed for high-precision corner turning operations. With its disengageable needle feature, operators can seamlessly turn 90-degree sharp corners on shirt pockets, garment collars, flaps, and denim waistbands without overlapping stitches.
Powered by an integrated direct-drive servo motor and managed via a smart digital panel, the JK-58450B guarantees stable stitch lengths, clean thread trimming, and optimal energy efficiency. Its synchronized needle feed and automatic oiling system deliver consistent seam quality across light, medium, and heavy materials.
Price:
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