Siruba 747KST-514M3-24/VT/SD/DKKU Overlock Machine
Specialized 4-Thread Cylindrical Overlock for T-Shirt Collar Ribbing with Sweatband Insertion
The Siruba 747KST-514M3-24/VT/SD/DKKU is a high-performance, specialized 4-thread cylindrical overlock machine engineered for sewing T-shirt collar ribbing while simultaneously inserting a sweatband tape. This makes it a unique solution for manufacturers seeking precision and efficiency in knitwear production, especially in the sportswear and casual wear industries.
The machine is equipped with a dual differential feed system—bottom feed (feed dogs) and upper feed (walking foot)—to ensure consistent fabric movement, even over thick seams or multiple layers. It features pneumatic thread trimming, chain stitch suction, and a servo motor integrated into the machine head, offering quiet operation, reduced vibration, and up to 75% energy savings compared to traditional motors. Sweatband tape insertion is controlled via a knee lever, and a set of four adjustable tension rollers ensures uniform collar ribbing application across the neckline. An integrated LED light with adjustable brightness improves visibility in the work area.
Technical Specifications:
Sewing speed: up to 6,000 stitches/min
Needle spacing: 2 mm
Overlock width: 4 mm (total stitch width: 6 mm)
Presser foot lift height: 5.5 mm
Stitch length: up to 3.6 mm
Differential feed: 0.7 – 2.0
Sweatband tape width: 35 mm
Needle type: B27
Power supply: 230V
Requires compressed air connection
Key Features:
Specialized setup for attaching T-shirt collars with sweatband insertion in a single operation
Pneumatic thread trimming and chain stitch suction for automated workflow
Dual differential feed with upper walking foot prevents layer slippage and distortion
Built-in servo motor reduces energy use and improves performance
Adjustable LED lighting and ribbing tension rollers for precise control and operator comfort
