SIRUBA 757K-516M2-35 — 5-Thread Overlock Industrial Sewing Machine

Servo Motor • Fully Submerged

The SIRUBA 757K-516M2-35 is a high-performance 5-thread overlock (safety-stitch) industrial sewing machine engineered for continuous, professional use. Delivered fully assembled with an energy-saving direct-drive servo motor, industrial table, and submerged stand, it delivers low vibration, low noise, and exceptional stitch consistency on medium-weight fabrics such as shirts, uniforms, and general apparel.

General Applications

• General seaming on medium fabrics (shirts, uniforms, knitwear).
• 5-thread safety-stitch seams combining overedge + chain stitch for durable construction.

Key Features

• Patented High-Efficiency Direct Drive (700KD): Integrated machine frame with built-in servo motor for fast response, quiet operation, and easy speed setting.
• Needle Positioning & Built-in Synchronizer: Precise needle up/down control and obstacle-free handwheel for smooth handling.
• Fully Automatic Lubrication: Centralized oiling system with filter for consistent performance and long service life.
• Thread Tension Regulation: Fine-tuned tension ensures balanced, high-speed seams and clean stitch formation.
• Safety & Cooling: Integrated needle and thread cooling with safety stitch setup; includes water safety protector.
• Selectable Stitch Length: Quick dial adjustment for flexible fabric handling.

Sealed Direct-Drive Needle Bar Mechanism

• Dust-free and oil-leakage-free sealed needle bar section keeps work clean.
• Direct-drive design eliminates connecting-rod losses for higher speeds and longer durability.

Active Lubrication System

• Active oil supply for needle bar and upper looper with sealed vacuum return path.
• Outperforms traditional rope-type and drip-type systems for reliable high-speed performance.

Oil-Proof Feed Mechanism (Patented)

• Upgraded double-lip wiper system improves oil-proofing around the feed dog for enhanced durability.

Direct-Drive Feeding Mechanism

• Prevents over-differential feeding — no need for frequent adjustments.
• Reduces mechanical loss for smoother, quieter operation.

New Fabric Trimmer Mechanism

• Low-axis knife holder prevents fabric roll-up after trimming, ensuring clean edge finishes.

Controls & Ergonomics

• Built-in LED Light (Optional): Integrated illumination for precision sewing.
• Fully Submerged Table with Wheels: Low-vibration workstation for stable operation and easy mobility.

Included & Optional Parts

• Included: Machine head (757K-516M2-35), built-in servo motor, control panel, fully submerged industrial table, and stand.
• Feed Dog Options:
  • D201 (Standard): 1.6 mm teeth spacing
  • D201A (Optional): 0.8 mm spacing for extra-light fabrics
  • D201B (Optional): 1.0 mm spacing for lightweight fabrics
• Presser-Foot Fingers (Optional): Short finger for heavy fabrics, long finger for light fabrics — improves feed stability and stitch quality.

Advantages

• Energy-efficient direct-drive system with needle positioning.
• Clean, sealed operation — dust and oil leakage prevented.
• Stable high-speed sewing with active lubrication and cooling system.
• Reduced maintenance thanks to sealed and filtered oil design.
• Delivered fully assembled and ready for production.

Why Choose the SIRUBA 757K-516M2-35

Choose the SIRUBA 757K-516M2-35 for dependable 5-thread safety-stitch seaming, industrial-grade durability, and low-maintenance performance — engineered to keep your production line running fast, clean, and consistent.