Juki LBH-1790ANS/MC602EN Computer-controlled Buttonholing Sewing Machine

Juki LBH-1790AN/LBH-1790ANB

Shorter-Thread Remaining Mechanism

• Efficiency: The new mechanism reduces the length of the remaining bobbin thread to less than 2.5mm on average.
• Convenience: This feature eliminates the need for manual thread nipping, enhancing productivity and efficiency.

IoT Integration for Enhanced Management

• Data Management: Allows for management, browsing, and editing of data via application software.
• Contactless Data Transfer: Data on sewing machine adjustments can be transferred to a commercially-available Android tablet using NFC (Near Field Communication). This enables quick checks for uniform settings and facilitates setup changes.
• USB Port: The operation panel is equipped with a USB port for easy data management and software updates via a USB thumb drive.
• Stable Quality: Numerical management of sewing data ensures stable quality and reduces time required for setup changes.
• Quantified Data: Sewing data can be exported using an Android tablet or USB thumb drive.

*Note: Android OS Version 6.0 is recommended for the JUKI Smart APP. (Operation is confirmed with versions 5.0 and later.) For more information on using the application software, contact your local Juki distributor.

Higher Productivity

• Maximum Sewing Speed: Achieves up to 4,200 stitches per minute (sti/min).
• Jump Speed: 200 mm/s, reducing cycle time for continuous sewing.

Cycle and Continuous Sewing

• Cycle Sewing: Allows registration of 20 different programs, storing up to 30 patterns in one program.
• Continuous Sewing: Enables continuous sewing of multiple patterns without lifting the work clamp foot. Up to 20 programs can be registered, and six different patterns can be stored in one program. (Optional parts required for some functions.)

Electronically Controlled Drive Mechanisms

• Comprehensive Control: Includes electronic control of material feed, needle feed, needle thread trimming, bobbin thread trimming, cloth trimming, and presser lifter mechanisms.
• Digital Adjustments: All adjustment values are digitalized for easy setting and storage via the operation panel.

Operator-Friendly Environment

• Noise Reduction: Direct-drive motor ensures quieter operation.
• Adjustable LED Light: Located under the arm jaw, providing adjustable illumination for all LBH-1790AN series models.
• Auxiliary Table: Standard accessory that facilitates easy placement of sewing products. Needle entry is centered on the bed for easier positioning.

Pedal Functions

• Auto-Lifter: Driven by a stepping motor to reduce operator fatigue.
• Pedal Models: One-pedal and two-pedal models available, with adjustable intermediate stop for easier product positioning.
• Work Clamp Foot Lift: Maximum lift of 17mm with reverse-rotation needle-up function.

JUKI's Active Tension (Electronic Thread Tension Control System)

• Parallel and Bartacking Control: Needle thread tension can be controlled separately for parallel and bartacking sections of buttonholes through the operation panel.
• Memory Storage: Tensions can be stored based on sewing conditions such as thread type, material, and sewing speed.
• Thread Breakage Prevention: Ability to change needle thread tensions to produce beautiful buttonhole shapes and prevent thread breakage.
• Needle Thread Tension Activation: Activates at the beginning and end of sewing to prevent unthreading and fraying.
• Basting Stitch Tension: Separately specified for basting stitching.

Basting Stitch Mechanism

• Effectiveness: Particularly useful for elastic materials like knits. Ensures needle thread is tucked in without jutting out of buttonhole seams. Capable of sewing by nine rounds.

Multiple Knife-Dropping Function

• Knife Adjustment: Eliminates the need to change the knife when buttonhole size changes. Automatically sets the number of knife drops based on buttonholing size, ideal for small-lot productions or cycle sewing with varying buttonhole sizes.
• Double-Acting Stepping Motor: Ensures reliable knife dropping and returning.
• Sewing Lengths: Supports up to 41mm as standard. Optional mechanisms for 70mm and 120mm available.

Specifications