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JACK® E4S-4-M03/333 2-Needle 4-Thread Direct Drive Industrial Overlock Sewing Machine
FULLY ASSEMBLED | TABLE, MOTOR & STAND INCLUDED
Wheels are not included and are sold separately.
FOUR-THREAD OVERLOCK • DIRECT DRIVE • DIGITAL SPEED CONTROL
The JACK E4S-4-M03/333 is a two-needle, four-thread industrial overlock sewing machine designed for professional garment manufacturing and textile production.
Its integrated direct-drive motor provides electronically controlled sewing operation without a conventional external clutch-motor arrangement.
The machine combines overlock seam construction, differential material feeding, and adjustable sewing speed for selected knit and woven garment applications.
Key Features
- Two-Needle Four-Thread Overlock: Produces overlock seams for garment assembly and fabric edge finishing.
- Integrated Direct Drive Motor: Built-in motor design provides electronically controlled operation without a conventional external clutch-motor system.
- Digital Speed Control: Allows operators to adjust sewing speed according to material and production requirements.
- Differential Feed: Supports adjustment of fabric movement to help control stretching and gathering during sewing.
- Adjustable Stitch Length: Provides stitch-length adjustments for different garment constructions.
- Integrated LED Work Light: Illuminates the sewing area for improved visibility.
- Motor Cooling Design: Ventilation supports heat management during normal machine operation.
- Needle Position Settings: The supplied product description lists electronic needle-position control. Confirm the exact functions on the supplied unit.
- Industrial Construction: Designed for professional garment sewing and overlock applications.
Applications
- Garment manufacturing and finishing.
- Knitwear and stretch fabric sewing.
- Selected woven fabric applications.
- Sportswear and casual apparel.
- Four-thread mock safety seams.
- Fabric edge finishing.
- Light-to-medium garment production.
- Professional sewing workshops.
Important: Actual sewing capability depends on fabric construction, material thickness, needle selection, thread, differential-feed settings, and machine adjustments.
Technical Specifications
| Brand | JACK |
| Model | JK-E4S-4-M03/333 |
| Machine Type | Industrial Overlock / Serger |
| Number of Needles | 2 |
| Number of Threads | 4 |
| Stitch Application | Plain Seam / Mock Safety Stitch |
| Needle System | DC × 27 |
| Needle Size | #11 — Listed Configuration |
| Needle Spacing | 2 mm |
| Stitch Width | 4 mm × 4.6 mm — Verify Exact Configuration |
| Stitch Length | 0.8–4.6 mm |
| Differential Feed Ratio | 0.7–2.0 — Verify Exact Configuration |
| Presser Foot Lift | 5.5 mm |
| Maximum Sewing Speed | 5,500 Stitches Per Minute |
| Motor | Integrated Direct Drive Servo Motor |
| Control Interface | Digital Speed Control |
| LED Work Light | Included |
| Motor Voltage | Confirm With Supplied Machine |
| Motor Power | Confirm With Manufacturer |
| Needle Position Control | Verify Exact Configuration |
| Included Equipment | Machine Head, Motor, Table & Stand |
| Assembly | Fully Assembled by JMJ Sewing Machines |
| Wheels | Not Included — Sold Separately |
Advantages of Direct Drive Overlock Technology
- Electronic Speed Control: Allows operators to adjust sewing speed according to their production requirements.
- Integrated Motor Design: Eliminates the conventional external clutch-motor arrangement.
- Controlled Fabric Feeding: Differential feeding helps manage material movement during overlock sewing.
- Work Area Visibility: Integrated LED lighting supports sewing operations in different workshop environments.
- Production Convenience: Combines industrial overlock sewing with electronic speed adjustment.
Fully Assembled & Ready for Operation
Every JACK E4S-4-M03/333 purchased as a complete industrial package from JMJ Sewing Machines includes the machine head, integrated motor, table, and stand.
Our team prepares the machine through assembly, lubrication, calibration, and sewing-performance inspection before delivery or shipment.
Please Note: Caster wheels are not included in the standard machine package. They are available for separate purchase.
JMJ Sewing Machines Recommends
The JACK E4S-4-M03/333 is recommended for garment manufacturers and professional sewing workshops requiring four-thread industrial overlock stitching with direct-drive motor technology.
Its differential-feed system and adjustable sewing speed provide flexibility for different garment applications.
Our Recommendation: Choose the appropriate needle, thread, stitch length, differential-feed settings, and machine adjustments according to your materials and production requirements. JMJ Sewing Machines can assist with determining whether this model is suitable for your specific sewing application.
Why Choose JMJ Sewing Machines?
- 30+ Years of Experience: Professional knowledge of industrial and domestic sewing equipment.
- Professional Machine Preparation: Assembly, lubrication, calibration, and sewing-performance checks.
- Equipment Selection Assistance: Guidance to help customers choose machinery suited to their sewing needs.
- English & Spanish Support: Assistance before and after purchase.
- Orlando, Florida: Local machine delivery and customer assistance.
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