Jack F5-HL-7 Heavy-Duty Large Hook Direct-Drive Lockstitch Sewing Machine

Description

Jack F5-HL-7 Heavy-Duty Large Hook Direct-Drive Lockstitch Sewing Machine

Heavy-duty single-needle high-speed lockstitch machine designed for sewing heavy-weight materials, thick fabrics and applications requiring increased bobbin capacity.

The Jack F5-HL-7 is a direct-drive industrial lockstitch machine developed for demanding sewing applications involving heavy materials such as denim, canvas, leather and upholstery fabrics. It features a large-capacity hook, allowing more thread to be wound onto the bobbin and reducing interruptions caused by frequent bobbin changes.

The machine is equipped with an energy-efficient integrated direct-drive servo motor, providing quiet operation, reduced vibration and lower power consumption compared with conventional clutch-motor systems. Electronic speed adjustment and needle positioning allow the operator to control the machine easily for different sewing applications.

With a maximum stitch length of 7mm, the F5-HL-7 is suitable for heavier materials and longer stitch applications. Its robust construction and automatic lubrication system make it a reliable choice for continuous industrial production.

Key Features

• Single-needle heavy-duty lockstitch machine
• Large-capacity hook for increased bobbin thread capacity
• Integrated direct-drive servo motor
• Designed for heavy-weight materials
• Maximum stitch length of 7mm
• Maximum sewing speed up to 3,500 stitches/min
• Electronic speed adjustment
• Needle positioning function
• Quiet operation with reduced vibration
• Energy-saving direct-drive technology
• Automatic lubrication system
• Built-in bobbin winder
• Integrated LED work light
• Manual thread cutting knife
• Stitch-by-stitch function for precision sewing
• Suitable for continuous industrial production

Specifications

• Brand: Jack
• Class: F5
• Model: F5-HL-7
• Machine Type: Heavy-Duty Single-Needle Lockstitch Machine
• Stitch Type: 301 Lockstitch
• Number of Needles: 1
• Number of Threads: 2
• Feed System: Bottom Feed / Drop Feed
• Maximum Stitch Length: 7mm
• Maximum Sewing Speed: 3,500 stitches/min
• Presser Foot Lift: 5mm by Hand / Up to 13mm by Knee Lift
• Needle System: DP × 5 / 135 × 5
• Needle Size: Nm 110–130 approximately
• Hook: Large-Capacity / Double-Capacity Rotary Hook
• Motor: Built-in Direct-Drive Servo Motor
• Motor Power: Approximately 550W
• Lubrication: Automatic
• Needle Positioning: Yes
• Speed Control: Electronic Adjustable Speed
• Bobbin Winder: Built-In

Specifications are based on the standard Jack F5-HL-7 heavy-duty configuration and may vary slightly by market or regional version.

Suitable For:
Jeans • Denim Wear • Workwear • Canvas Products • Leather Goods • Bags • Upholstery • Furniture Covers • Automotive Upholstery • Heavy Garments • Uniforms • Curtains • Industrial Textiles • Thick Fabric Sewing