Jack A3 Computerized Sewing Machine | Used | Auto-Trimmer & Smart Sensors

Description

The Jack A3 is a high-performance computerized lockstitch machine designed to bridge the gap between basic direct-drive units and fully automated systems. This used unit features an Automatic Thread Trimmer (UBT) and integrated smart sensors that detect fabric thickness to maintain stitch consistency. By eliminating manual thread cutting, the Jack A3 significantly reduces production cycle times and thread consumption, making it a high-ROI asset for competitive garment manufacturing environments.

Advantages

• High-speed straight stitching with digital control

• Stable stitch quality for long production shifts

• Energy-efficient direct drive technology

• Reliable performance for export-grade garments

Machine Condition & Testing

Every used Jack A3 undergoes a comprehensive refurbishment process focused on its automated components:

• Computerized Logic Test: The control panel is tested for all functions, including soft-start, speed programming, and needle positioning.

• Trimmer Mechanism Audit: Moving and stationary blades are inspected and sharpened to ensure consistent automatic thread cutting.

• Fabric Sensor Calibration: Sensors are checked to ensure the machine maintains torque across varying fabric weights (light to medium).

• High-Speed Stability: Bench-tested at 5,000 RPM to verify that the Direct Drive motor remains silent and vibration-free.

• Lubrication Efficiency: The automatic oil pump system is verified to provide consistent cooling to the hook and needle bar.

Installation and Setup

This machine ships ready for installation. Connect to standard 220V single-phase power supply, mount on industrial sewing table, thread the machine, and begin production.

Installation support included:

• Basic setup guidance provided
• Threading diagram supplied
• Initial adjustment recommendations
• Operational manual (if available)

Most operators familiar with industrial lockstitch machines can complete installation and begin production within 2-3 hours of delivery.

FAQs

Is the Jack A3 fully tested before delivery?
Yes. Each machine is inspected, run-tested, and stitch-verified before dispatch.

Do you provide installation or setup support?
Basic installation guidance and support can be arranged depending on location.

What is the condition of the motor and control panel?
The direct drive motor and electronic control panel are tested for full functionality.

Is GST invoice provided?
Yes, GST invoice is provided as applicable.