JUKI MEB-3900J: Advanced Eyelet Buttonholing System Heavy-Duty Denim Jeans Industrial Sewing Machine

Juki MEB-3900J: Advanced Eyelet Buttonholing Sewing System for Jeans

Introducing the Juki MEB-3900J, a cutting-edge, computer-controlled eyelet buttonholing sewing machine specifically engineered for jeans. This robust and highly durable machine is designed to handle the demanding requirements of denim and workwear production, offering superior efficiency and quality.

Exceptional Speed and Productivity

The MEB-3900J is built to minimize production time with a top sewing speed of 2,500 stitches per minute. Its innovative air-driven cloth cutting knife significantly enhances responsiveness and operates more swiftly than traditional models, ensuring a seamless and rapid sewing process.

Enhanced Motor Performance

Equipped with a direct-drive AC servomotor connected directly to the main shaft, the MEB-3900J delivers quick startup times and precise stopping, reducing both noise and vibration. This motor design also eliminates the need for a V-belt, leading to lower power consumption and improved operational efficiency.

Precision Thread Trimming

This model features two advanced thread-trimming mechanisms to suit various customer needs. The needle thread trimming option and the overall thread trimming mechanism both promise consistent and reliable thread trimming, reducing the need for manual adjustments and enhancing productivity.

Digital Needle Thread Tension Control

The MEB-3900J allows for electronic control of needle thread tension, easily set via the operation panel. This feature enables the machine to reproduce exact sewing conditions for different materials and patterns, facilitating quick adjustments and ensuring the production of high-quality seams every time. Separate tension settings for various sections of the buttonhole help in maintaining stitch integrity and preventing issues like loose stitches or thread raveling.

Simplified Threading and Maintenance

With fewer components requiring threading, the MEB-3900J simplifies the threading process, making it quicker and more straightforward than conventional machines. The machine’s design also streamlines daily maintenance tasks, such as threading and cleaning, thanks to a gas-spring-supported head that lifts easily for access.

IoT-Enabled Management and Smart Operation Panel

The MEB-3900J leverages the Internet of Things (IoT) to offer advanced management of sewing performance and machine settings. Data can be transferred to an Android tablet or USB device, allowing for easy monitoring and adjustment of sewing conditions. The standard operation panel is equipped with a USB port, facilitating data management and software updates.

Versatile Stitch Patterns and Customization

This model comes with 12 standard stitching shape patterns for eyelet buttonholes and can store up to 87 different patterns in memory. The computer-controlled system allows for easy selection and customization of these patterns, enhancing versatility and efficiency in production.

Optimized for Jeans and Workwear

The machine head features an expanded workspace under the clamps, accommodating larger items like jeans with ease. The semi-sunken design simplifies the handling and placement of sewing products, improving overall workability. Adjustments to the cloth cutting knife can be made effortlessly using an external screw for precise control over material handling.

Improved Visibility and Work Environment

The MEB-3900J boasts improved visibility around the needle entry point, thanks to its redesigned arm frame and closer placement of the cloth cutting knife. An integrated LED light with adjustable brightness enhances the working area, ensuring better visibility during operation. The machine’s structure and components have been optimized to reduce vibration and noise, creating a more comfortable working environment.

Technical Specifications:

• Model Name: Juki MEB-3900J
• Application: Jeans and workwear
• Stitching Shape Patterns: Standard with 12 patterns; stores up to 87
• Stitch System: 1-needle, double chainstitch (with gimp)
• Sewing Speed: 400 to 2,500 stitches per minute
• Stitch Length: 10 to 38 mm (Needle thread trimming type), 10 to 34 mm (Overall thread trimming type)
• Needle Throwing Width: Mechanically adjustable from 2.0 to 4.0 mm; compensation from 1.5 to 5.0 mm
• Taper Bar Length: 3 to 15 mm
• Work Clamp Height: 13 mm
• Buttonhole Cutting Methods: Cut-before, cut-after, or without cutting
• Cloth Cutting Knife Drive System: Pneumatic
• Needle (at delivery): D0×558 Nm90 to Nm120 (standard Nm110)
• Lubricating Oil: JUKI MACHINE OIL No.18 (equivalent to ISO VG18)
• Compressed Air: Main regulator at 0.5 MPa; Hammer pressure regulator at 0.35 MPa (standard), 0.4 MPa (max)
• Air Consumption: 49.5 l/min (11.6 cycles per minute)
• Power Requirements and Consumption: Single-/3-phase 200-240V, 250VA
• Weight: Machine head - 110 kg; Operation panel - 0.3 kg; Control box - 5 kg
• Dimensions: Machine head - 382 mm (W) × 656 mm (D) × 584 mm (H); Completed product - 1,050 mm (W) × 700 mm (D) × 1,248 mm (H) (excluding thread stand)