JACK H7-LC LONG ARM WALKING FOOT MACHINE COMPLETE
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Description / JACK H7-LC LONG ARM WALKING FOOT MACHINE COMPLETE
Jack H7-LC
- Long Arm Multi-Fabric Heavy Duty Walking Foot Sewing Machine.
The long-arm version of the Jack H7-C, with a 365mm arm and 100mm extended head for very bulky items such as bags, cushions, leather gloves and armchairs. Fitted with the Smart Stitching System, it combines Flexible Alternation Technology with 0 Resistance Thread Control Technology to deliver smooth, wrinkle-free stitching on thin fabrics and refined, bead-free seams on thick materials. Equipped with an integrated 750W motor, it can effortlessly pierce through more than 10 layers of leather. Supplied complete.
Extra-Large Space
The extended 365mm arm and 100mm extended head give a 360 x 130mm working space, making it far easier to handle large, bulky work. Sew large leather pieces and sofa cushions smoothly without repeated flipping.

Smart Stitching System
Wrinkle-free and bead-free stitching. Flexible Alternation Technology and 0 Resistance Thread Control Technology work together for smooth results on thin fabrics and refined seams on thick materials.

Flexible Alternation Technology
An ultra-wide alternation range of 1.3 mm to 5.5 mm suits both thin and thick fabrics, with stable transmission. The integrated 10.5 Nm torque delivers rapid response and precise fabric feeding.

0 Resistance Thread Control
Thread passing resistance has been reduced by 30%, while loop stability has improved by 20%, for stable thread tension control, consistent stitch formation and a flawless stitch appearance.

Footlifter Adjustment
The presser foot lifter offers 16 adjustable levels, now fully digitalized and controlled by a stepper motor—just like the stitch length—for greater precision and ease of use.

Top Feed
Powered by a 750W motor, this machine is built for durability and strength. It delivers excellent results even on heavy materials, easily sewing through up to 8 layers of leather with outstanding penetration force.

Digital Knee Lifter
Say goodbye to the effort of lifting the old heavy mechanical foot. The new integrated digital knee lifter offers precision and comfort, enabling micro-lift adjustments with a light knee touch—perfect for tasks such as corner sewing.

Pattern Sewing
Create beautiful ornamental stitches with adjustable stitch length, allowing you to customize patterns to suit different design needs.

Oil-Free Head
Optimized DLC-coated components and needle roller bearings eliminate the need for lubrication, preventing oil stains and addressing common customer concerns.

Cam Positioning
Enables quick cam alignment using a handwheel precision reference, allowing for accurate adjustments and simplifying maintenance and debugging.

Accurate Stitch Length – Digitally Controlled
The stitch length is precisely controlled by a stepping motor, allowing adjustments accurate to 0.1 mm.
High Re-Stitch Rate: Perfect re-stitching is possible at any stitch length, with reinforcement stitches achieving a high degree of overlap.

Voice Navigation
When the machine encounters a fault, simply press the voice navigation button to hear professional troubleshooting guidance. This feature enables smart maintenance and convenient warranty support.

Technical Specification
| Model | Jack H7-LC |
|---|---|
| Application | Multi-Fabric, Long Arm |
| Arm Length | 365mm (L) |
| Working Space (mm) | 360 x 130 |
| Needle | DPx17 20-23# |
| Thread No. | 2 |
| Stitch Length | 8mm |
| Alternation Range | 1.3 - 5.5mm |
| Presser Foot Lifting Height | 7-15mm |
| Max Sewing Speed | 2500spm |
| Volume | 825 x 345 x 585 mm |
| Weight | 44.3 / 53.1 KG |
More Information
Technical Specifications
| Part No | JACKH7LC |
|---|---|
| Weight (KG) | 74 |
| Manufacturer | Jack |



