SIRUBA 737K-504M5-04/BK 3 Thread Overlock with Backlatch Industrial Sewing Machine Assembled with Servo Motor, Fully Submerged Table Setup Included

The SIRUBA 737K-504M5-04/BK is a 3-thread industrial overlock sewing machine with an integrated backlatch device (BK) for automatic seam securing at the start and end of each seam, eliminating manual chain tacking and reducing thread waste in high-volume production. This complete setup includes the machine head, 550W servo motor, and fully submerged industrial table, assembled and ready to use. Designed for sleeve and side seam overlocking on knit and stretch fabrics, including underwear, sportswear, and activewear manufacturing.

What's Included

• 1x SIRUBA 737K-504M5-04/BK 3-Thread Overlock Machine Head
• 550W Servo Motor (assembled)
• Fully submerged industrial table setup

Key Features

• 3-thread overlock with BK backlatch device for automatic seam securing at the start and end of each seam
• Convertible to 2-thread overlock using optional blind looper LP231 (sold separately)
• Adjustable needle thread tension and fabric guide for decorative effects with needle thread visible on top side
• 550W servo motor — quieter and more energy-efficient than clutch motors
• Belt driven transmission for reliable, consistent stitch formation
• Fully assembled and ready to use out of the box

Ideal For

• Sleeve and side seam overlocking on knit and stretch fabrics
• Underwear, sportswear, and activewear production
• Industrial garment manufacturing requiring high-speed clean edge finishing

Specifications