JUKI LU-2828A-70BBS Industrial Single Needle Direct-Drive Unison-Feed Heavy-Duty Lockstitch with 2.7-fold Capacity Hook (SC-922B Control Box, CP-18C Operation Panel)

JUKI LU-2828A-70BBS — Semi-Dry, Direct-Drive 1-Needle Unison-Feed Heavy-Duty Lockstitch with Auto Thread Trimmer & 2.7-fold Capacity Hook (SC-922B Control Box, CP-18C Operation Panel) 

The JUKI LU-2828A-70BBS is designed for demanding sewing-work on heavy materials such as automotive seats, furniture upholstery, bags and other large-format applications. With a direct drive motor, unison-feed mechanism, vertical-axis 2.7-fold capacity hook, and an automatic short-thread trimming system, it delivers professional seam quality and productivity in industrial settings.

What Sets the LU-2828A-70BBS Apart

• Unison-Feed + Direct-Drive Design
  True unison feed combines synchronized top, bottom, and needle motion, ensuring stable pitch on layered or high-friction materials. The direct-drive motor provides instant torque, reduced vibration, and lower noise. 
• 2.7-Fold Capacity Vertical-Axis Hook 
  Large-capacity hook reduces bobbin changes, improving operator uptime and maintaining consistent thread tension through long seams.
  
• Multi-Functional 6-String Switch
  One-touch control system mounted on the machine arm for fast function change: reverse feed, alternating-lift setting, stitch-length change, tension-release, and needle-thread clamp. Simplifies operation and boosts efficiency.
  
• Two-Pitch Dial System
  Switch instantly between two preset stitch-lengths during sewing — perfect for switching from structural to decorative topstitching without stopping the machine. Improves productivity and eliminates re-adjustment downtime.
  
• Short-Thread Remaining Mechanism (Needle-Thread Roll-In + Automatic Trimmer)
  At start-up, the needle thread is pulled under the material; at the end, the trimmer leaves only ≈ 5 mm of remaining thread. No manual snipping required — cleaner finish and faster cycle time.
  
  
• High Presser Lift and Extended Arm Clearance
  Automatic lift up to 20 mm and 347 × 127 mm arm space allow effortless handling of bulky materials like foam-filled panels or thick leather assemblies.
  
• Alternating Lift Adjustment (1 – 9 mm)
  Walking-foot / presser-foot alternating vertical movement can be dial-set from 1 to 9 mm for smooth feeding across multi-layer or uneven materials. This ensures even stitch formation and prevents fabric shift.
  
• High Sewing Speed Capability
  Reaches up to 3 000 stitches per minute while maintaining feed accuracy and thread tension — ideal for large components and high-output lines.
  
  
• Semi-Dry Head with Advanced Lubrication System
  The sealed semi-dry head and self-circulating oil system keep every motion smooth and reliable for long-lasting performance and flawless seams shift after shift.
  
  
• Double Tension Discs
  Dual tension assemblies ensure consistent thread control on thick or dense materials and improve seam stability when alternating between different thread sizes or stitch types.
  

Included Components

•  SC-922B Control Box
  Advanced digital control unit that manages motor performance, speed response, and energy efficiency. It stabilizes operation even under voltage fluctuations, ensuring smooth sewing and precise stop positions during trimming or backtack.

•  CP-18C Operation Panel
  User-friendly touch interface for adjusting stitch length, speed limits, auto backtack, soft-start functions, and other settings. Compact and intuitive, it gives operators full control over production parameters without stopping the machine.

How It Improves Your Workflow

• Faster Throughput, Less Waiting
  The direct-drive motor and 3 000 stitches/minute max speed let operators move through large jobs quickly — no lag between stops, no belt slip, just steady, responsive stitching.

• Fewer Bobbin Changes
  The 2.7-fold-capacity hook carries nearly triple the thread of a standard hook, keeping lines running longer and reducing interruptions.

• Cleaner Seams, No Scissors Work
  The short-thread remaining system trims to about 5 mm, so operators don’t waste time snipping ends — products stay neat straight off the machine.

• Smoother Handling of Thick or Bulky Materials
  A 20 mm automatic foot lift and true unison feed move heavy layers evenly, preventing puckering or material shift.

• Lower Maintenance and Running Costs
  The semi-dry head and direct-drive system cut oil use, noise, and power draw. No belts to replace and no oil stains — just reliable, low-upkeep production.

Who Benefits Most from the LU-2828A-70BBS 

✔ Automotive interior & seat manufacturers – car seats, headrests, steering wheel covers
✔ Furniture & sofa production lines – upholstery seams, cushions, decorative topstitching
✔ Bag, luggage & leather-goods workshops – backpacks, handbags, belts, tool bags
✔ Canvas / technical-fabric producers – tents, awnings, tarps, protective covers
✔ High-precision production factories – heavy uniforms, outerwear, and accessories