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JACK® JK-H6L-CZ-4 14-Inch Long Arm Computerized Heavy-Duty Walking Foot Industrial Sewing Machine – Complete with Table & Stand
FULLY ASSEMBLED | TABLE, MOTOR & STAND INCLUDED
Professionally assembled, adjusted, and sewing-tested by JMJ Sewing Machines before delivery. Wheels are not included.
Overview
JMJ Sewing Machines recommends the JACK® JK H6L-CZ-4 for sewing workshops handling large, layered, and heavy-duty textile projects. Its 14.4-inch long-arm workspace provides additional clearance for maneuvering bulky material, while the top-and-bottom feed system helps maintain control during sewing.
The machine combines a 750W Direct Drive AC servo motor with computerized functions including electric thread trimming, automatic presser-foot lifting, digital stitch-length adjustment, and programmable sewing. JMJ supplies this model with its industrial table, motor and stand, professionally assembled and prepared for use.
Key Features
- 14.4-inch Long Arm: Extended working area for bulky upholstery, bags, and larger sewing projects.
- Top & Bottom Feed: Helps move layered materials with improved control.
- 750W Direct Drive Motor: Integrated AC servo motor with adjustable speed control.
- Electric Thread Trimming: Cuts thread automatically between sewing operations.
- Automatic Presser Foot Lift: Electric lifting reduces repetitive manual handling.
- Digital Stitch Length: Stepper-motor-controlled adjustment for repeatable stitch settings.
- Programmable Segment Sewing: Supports production sequences and repeated operations.
- Automatic Bartacking: Reinforces seam beginnings and endings.
- Electronic Thread Nipper: Supports thread control during automated operation.
- Needle Positioning: Provides controlled needle stopping.
- Integrated Bobbin Winder: Convenient bobbin preparation.
- LED Work Light: Adjustable illumination near the needle.
Applications
- Upholstery and furniture production
- Automotive and marine interiors
- Canvas, vinyl and suitable leather applications
- Bags, luggage and structured textile products
- Heavy workwear and layered materials
- Large sewing projects requiring additional arm clearance
Technical Specifications
| Specification | Details |
|---|---|
| Brand | JACK® |
| Model | JK H6L-CZ-4 |
| Machine Type | Computerized Heavy-Duty Single-Needle Lockstitch |
| Feed Type | Top & Bottom Feed |
| Long Arm Workspace | 14.4 in |
| Maximum Sewing Speed | 2,200 SPM |
| Maximum Stitch Length | 9 mm |
| Presser Foot Lift | 8 mm by Hand / 16 mm Stepper Motor |
| Needle System | DP×17, Sizes #20–#23 |
| Motor | 750W Direct Drive AC Servo Motor |
| Stitch Length Control | Digital / Stepper Motor Controlled |
| Thread Trimmer | Automatic Electric |
| Presser Foot Lifter | Automatic Electric |
| Bartacking | Automatic Start & End |
| Thread Nipper | Electronic |
| Needle Positioning | Electronic Sensor |
| Programmable Sewing | Segment Sewing |
| Lubrication | Minute-Quantity Lubrication |
| Bobbin Winder | Integrated |
| Lighting | Integrated Adjustable LED |
| External Air Required | No |
| Table, Motor & Stand | Included |
Included with the Machine
- JACK® JK H6L-CZ-4 Machine Head
- Integrated 750W Direct Drive Servo Motor
- Heavy-Duty Industrial Sewing Table
- Industrial Stand
- Integrated Bobbin Winder
- Adjustable LED Work Light
- Standard Machine Accessories
JMJ Quality Inspection
Before delivery, JMJ Sewing Machines inspects the assembled machine, checks relevant mechanical and electronic functions, adjusts and calibrates the equipment as appropriate, and performs a sewing test to assess stitch formation and material feeding.
These checks help identify potential assembly or operating issues before the equipment reaches the customer.
Complimentary In-Store Machine Explanation
Customers purchasing directly from our Orlando store receive a complimentary brief explanation of the machine’s main controls and basic operation at pickup. This is not an extended training course. Shipped orders do not include in-person operator training.
JMJ Sewing Machines Recommends
For leather, upholstery, canvas and other heavy materials, confirm the material thickness, thread, needle and required stitch setup before purchase. Our team can help determine whether this machine configuration suits your production needs.
Spare Parts, Repair & Maintenance
JMJ Sewing Machines offers compatible needles, bobbins, hooks, presser feet, feed components, electrical parts, and other industrial sewing accessories, subject to compatibility and availability. Our team also provides machine diagnosis, repairs, adjustments, and preventive maintenance.
Warranty & Technical Support
Warranty inquiries and after-sales technical assistance are handled directly through JMJ Sewing Machines.
Warranty coverage, duration, exclusions, and procedures follow the applicable manufacturer or seller warranty terms provided with the equipment. For covered defects, JMJ assists with evaluating the issue and coordinating applicable parts and labor service. Applicable legal rights remain in effect.
Preliminary assistance may be available by video; certain evaluations or repairs require an in-person inspection.
Important Before Ordering
Machine configuration: Complete with industrial table, integrated motor, and stand.
Electrical requirements: Confirm the voltage of the exact supplied unit before ordering.
Wheels: Not included; sold separately.
Material compatibility: Verify fabric thickness, needle, thread, and sewing settings for your application.
Returns & Store Policies
Returns are subject to the current JMJ Sewing Machines return policy, including eligibility, condition requirements, and applicable exclusions. Claims involving manufacturing defects are handled under applicable warranty terms and law.
Why Choose JMJ Sewing Machines?
- 30+ Years of Experience: Technical knowledge of industrial and domestic sewing equipment.
- Quality Preparation: Assembly, inspection, adjustments, and sewing tests before delivery.
- Direct Support: Assistance with compatible parts, repairs, and warranty inquiries.
- Bilingual Service: Customer service available in English and Spanish.
READY TO EQUIP YOUR SEWING WORKSHOP?
Contact JMJ Sewing Machines to confirm pricing, availability, and the right machine configuration for your production.
CALL TO ORDER – ENGLISHCALL TO ORDER – SPANISHContact JMJ Sewing Machines
JMJ SEWING MACHINES
Industrial & Domestic Sewing Machines | Parts & Accessories,
Repair & Maintenance | Orlando, Florida
English: 407-451-7450
Spanish: 321-374-2407
Customer Service Available in English & Spanish.
Website: jmjsewingmachines.com
30+ Years of Experience
Professional Equipment. Experienced Support.