JUKI MF-7923-U11-B56/UT51 Cylinder-Arm Coverstitch 3-Needle, 5.6mm Gauge Industrial Sewing Machine

Juki MF-7923-U11-B56/UT51 Cylinder-Arm Coverstitch Machine

Cylinder-Bed, 3-Needle, 5.6mm Top & Bottom Coverstitch Machine with Electromagnetic Thread Trimming for Collarette Attaching

The Juki MF-7923-U11-B56/UT51 is part of the advanced MF-7900 Series, a newly developed line of coverstitch machines engineered to enhance seam quality through innovative features and mechanisms.

Key Features:

• Versatile Universal Design (U11):

  • Ideal for hemming T-shirt sleeves and bottoms as well as covering sportswear and knitwear.
  • Trimmed front cover allows closer hand positioning near the needle entry, boosting efficiency in the covering process.

• Innovative Dry-Head Technology:

  • Inherited from the MF-7500 Series, the dry frame mechanism prevents oil stains, reducing the need for stain removal or re-sewing.
  • Ensures higher quality finished products by protecting the fabric from oil contamination.

• Advanced Feed Mechanism:

  • External adjustments for feed locus in both vertical and horizontal directions allow for superior responsiveness to different sewing materials.
  • Suitable for various types of sewing, improving seam consistency and quality.

• Micro-Lifter Mechanism:

  • Slightly raised presser foot enables smooth sewing of elastic or delicate materials, reducing slippage, warpage, and material damage.

• Precision Differential-Feed Micro-Adjustment:

  • Finely adjustable differential feed for optimal performance with diverse materials.
  • Maintains consistent differential feed ratio regardless of stitch length adjustments.

• Enhanced Looper Thread Twining Prevention:

  • Standard feature that activates in case of thread breakage to prevent twining on the looper thread cam.
  • Improved design with externally mounted looper thread cam for better maintenance and usability.

• Compatibility with Commercially-Available Components:

  • Compatible with standard gauge components like presser feet, throat plates, and needle clamps, ensuring easy replacement and maintenance.

• Efficient Direct-Drive Motor System:

  • All thread-trimming models include a direct-drive motor, eliminating the V-belt and reducing power consumption by 29% compared to conventional models.
  • Provides swift start-up, precise stopping, and enhanced sewing performance while minimizing belt shavings.

Specifications:

• Model Name: Juki MF-7923-U11-B56/UT51
• Number of Needles: 3
• Number of Threads: 5
• Needle Gauge: 5.6mm
• Stitch Length: 0.9 - 3.6 mm (adjustable up to 4.4mm)
• Differential Ratio: 1:0.9 - 1:1.8 (1:0.6 - 1:1.1)
• Presser Foot Lift: 5mm (8mm for bottom coverstitch)
• Maximum Sewing Speed: 6,500 stitches per minute
• Stitch Type: 3-needle top and bottom coverstitch
• Needle: UY128GAS (#10S), #9S - #12S
• Lubrication: Automatic with JUKI Machine Oil 18 (ISO VG18)
• Feed Dog Inclination Adjustment: Standard
• Micro-Lifter: Standard
• Needle Bar Stroke Conversion: 31mm (standard), 33mm for heavy materials
• Silicon Oil Tank for Needle: Standard
• Cartridge Oil Filter: Standard
• Power Requirements: Single-phase 100~120V / 200~240V
• Power Consumption: 500VA (with automatic thread trimmer)
• Machine Head Weight: 41kg (without device), 49kg (with UT51), 51kg (with PL/UT52), 44kg (with UT57)