SIRUBA 747 -FS MINI CYLINDER OVERLOCK MACHINE About
The SiRUBA 747 Cylinder Bed series (commonly designated under the 747KS or 747KST model lines) is a high-speed, industrial 4-thread overlock (serger) machine. It is specifically engineered with a small, circular sewing arm instead of a traditional flatbed. This design is purpose-built for sewing and edge-finishing small, tubular, or closed-loop garment sections.
Detailed breakdowns of this machine's key features, applications, and technical specifications are outlined below. [
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Key Features
- Mini Cylinder Bed Architecture: Features a narrow 148mm circumference bed. This allows small tubular pieces to slide smoothly over the arm without stretching or bunching. [1, 2, 3, 4, 5]
- Direct-Drive Servo Motor: Most modern iterations come standard with an energy-efficient servo motor integrated directly onto the machine head. This setup reduces energy consumption by up to 75% compared to old clutch motors while minimizing noise and vibration.
- Advanced Fabric Feeding: Equipped with an adjustable differential feed (ranging from 0.7 to 2.0). This prevents puckering on delicate fabrics and controls stretching on high-elastic materials.
- Automatic Lubrication: A fully automatic, centralized oiling system ensures all internal moving components stay continuously lubricated for prolonged durability during high-volume production shifts.
Core Technical Specifications
| Specification | Target Details |
| Stitch Formation | 2-Needle, 4-Thread Overlock (Style 514) |
| Max Sewing Speed | Up to 5,000 to 6,500 Stitches Per Minute (SPM) depending on sub-model |
| Cylinder Circumference | 148 mm |
| Max Stitch Length | Adjustable up to 3.8 mm 4 mm |
| Overedge Stitch Width | Standard 4 mm (total seam width up to 6 mm) |
| Needle System | DC27 (or B27) |
| Presser Foot Lift | Up to 5 mm |
Primary Applications
The cylindrical arm makes this machine the industry standard for overedging circular items where flatbed machines cannot easily maneuver.
- Attaching ribbed collars, necks, and cuffs on knitwear and T-shirts.
- Seaming waistbands on leggings, underwear, activewear, and swimwear.
- Hemming and closing pant legs, sleeve openings, and children's clothing.
If you are looking to purchase or configure this machine, let me know:
- What specific garments or materials (e.g., highly elastic swimwear, heavy fleece) you plan to sew?
- Do you require integrated pneumatic attachments like an automatic thread trimmer (VT) or an auto-foot lifter?
- Are you looking for pricing and supplier availability in your region.
Advanced Stitching for Professional ResultsThe SIRUBA 747-FS is engineered for professionals seeking robust seam finishes and consistent quality. Its intertwining upper needle and lower looper mechanism ensures secure and neat overlock stitches suitable for a variety of textiles. The 5mm to 9mm sewing thickness capacity allows it to manage multiple fabric layers effectively.
Precision Engineering and PerformanceOperating at a remarkable 5,500 stitches per minute, this overlock machine speeds up production without sacrificing stitch integrity. The advanced differential drop feed system prevents fabric distortion, delivering flawless seams on both lightweight and heavy materials with every use.
User-Friendly Design and SupportWith a compact footprint (58*45*50 cm) and intuitive controls, the SIRUBA 747-FS is ideal for busy production environments. Its energy-efficient 550-watt motor and reliable 220V input ensure compatibility with standard Indian power outlets. Support services and warranty coverage provide added confidence to users.
FAQ's of SIRUBA 747 -FS MINI CYLINDER OVERLOCK MACHINE:
Q: How does the SIRUBA 747-FS Mini Cylinder Overlock Machine form its stitches?
A: The SIRUBA 747-FS utilizes an intertwining mechanism with an upper needle thread and a lower thread or looper beneath the fabric. This creates strong, clean overlock stitches ideal for finishing fabric edges and preventing fraying.
Q: What fabric thickness and stitch lengths can this machine handle?
A: This overlock machine accommodates fabric thicknesses between 5 mm and 9 mm. It offers selectable stitch lengths of 3.8 mm and 4.5 mm, providing flexibility for various sewing applications and fabric types.
Q: When is a differential drop feed system beneficial in sewing?
A: A differential drop feed system is particularly useful when working with stretchy or difficult fabrics, as it prevents distortion and puckering. The SIRUBA 747-FS incorporates this advanced feed mechanism to deliver smooth seams on all material types.
Q: Where can the SIRUBA 747-FS Mini Cylinder Overlock Machine be purchased or serviced in India?
A: The machine is available through authorized importers, service providers, suppliers, and traders across India. These providers can also offer maintenance services and warranty support.
Q: What process should be followed to operate this overlock machine?
A: To operate the SIRUBA 747-FS, ensure the machine is properly threaded, set the desired stitch length and width, and adjust the differential feed for your fabric. Plug it into a 220V outlet and follow the manufacturer's instructions for safe and efficient usage.
Q: What are the main benefits of using this overlock machine?
A: The SIRUBA 747-FS delivers fast, professional-grade seam finishes, enhances fabric durability, and saves time with its high-speed operation. Its versatility and reliable performance make it suitable for both lightweight and thicker materials.
Q: Is the SIRUBA 747-FS Mini Cylinder Overlock Machine covered by warranty?
A: Yes, the machine comes with warranty support, offering users peace of mind regarding its performance and durability. Details about warranty terms can be obtained from the authorized supplier or trader.