COMPOUND FEED DOUBLE NEEDLE LOCKSTITCH SEWING MACHINE SHIBANG-4420
MACHINE NAME: COMPOUND FEED DOUBLE NEEDLE LOCKSTITCH SEWING MACHINE
MODEL NO: SB-4420
BRAND: SHIBANG
FEATURES
- Which is designed with large vertical rotating hooks for thread foot catching and sliding bars for thread uptalking, it has been sub-classed into single needle. two needle, single needle with. cog belt driving. plunger pump lubrication and compound feed by needle bar. presser foot and feed dog provides this series with such splendid features as smooth running.
- So it is especially available in stitching car seat cushions, safety belts, safety air bags, tents, parachutes, etc. Suitable for sewing bags. Sofa, furniture, sport articles and tents.
TECHNICAL PARAMETER
- Sew : 2000rpm
- The foot to promote : 13/16
- Stitch : 8mm
- Needle : DPx17
The Shibang-4420 Compound Feed Double sewing machine is a high-performance industrial-grade solution designed for stitching heavy-duty materials with unmatched precision, efficiency, and consistency. Built with advanced compound feed technology, this machine offers a stable and uniform stitching experience for professional-grade production lines, including automotive upholstery, leather goods, furniture, luggage, military gear, and other industrial textile applications. Crafted for reliability, the Shibang-4420 delivers on performance across diverse sewing conditions, making it ideal for environments requiring high-speed output, multi-layer fabric handling, and rigorous quality assurance standards. Whether you're managing a mass-production factory or a specialty workshop, this machine’s robust design, powerful feeding mechanism, and intuitive controls make it the go-to choice for demanding operations.
Key Features of the Shibang-4420 Compound Feed Double
Advanced Compound Feed Mechanism
The Shibang-4420 features a precision-engineered compound feed system, which synchronizes the movement of the needle, presser foot, and feed dog. This triple feeding system ensures even fabric advancement, preventing material slippage, puckering, or uneven stitches. It provides unmatched control over thick, multi-layered, or slippery materials such as vinyl, leather, canvas, laminated fabrics, coated textiles, and technical composites. Whether stitching soft leather or stacked seams in automotive seats, this mechanism ensures perfect stitch integrity and alignment.
Double Needle Design
The double needle setup allows for simultaneous parallel stitching, making it ideal for decorative seams, structural reinforcement, or manufacturing items with dual seam requirements. Operators can adjust needle spacing for various project needs, and the design accommodates a wide variety of threads and materials. This feature is especially valuable in production lines requiring symmetrical seams or high-strength output, such as seat covers, bags, saddlery, and protective garments.
High Penetration Power and Stitch Quality
Thanks to its high torque motor and mechanical stability, the Shibang-4420 offers superior needle penetration power. It can stitch through multiple thick layers or dense materials without skipped stitches or broken threads. Even when handling high-tension fabrics or operating at high speed, the machine maintains a balanced, even stitch formation. The consistent stitch length and uniformity provide professional finishing that meets the most stringent production standards.
Versatile Stitch Adjustability
Operators can fine-tune stitch length, thread tension, and presser foot height based on material type and thickness. The machine offers a broad range of stitch lengths, giving manufacturers flexibility to adjust for different visual or structural effects. This adjustability ensures compatibility with an extensive range of products, including leather accessories, car interiors, tarpaulins, tents, footwear, and more.
Durable and Low-Vibration Construction
Built on a heavy-duty chassis, the Shibang-4420 minimizes vibrations during high-speed operation, ensuring operator comfort and precision. Its reinforced frame design increases the machine’s durability and reliability, even under continuous use in harsh industrial environments. Every component is crafted for longevity—from the cast-iron body to the sealed lubrication system—reducing downtime and extending operational life.
High-Speed Operation for Mass Production
Engineered for efficiency, the Shibang-4420 is capable of high-speed continuous operation, significantly enhancing throughput in demanding manufacturing settings. The powerful servo motor (usually optional) enables quick acceleration and deceleration while maintaining control and stitch quality. The result is a high-efficiency workflow with reduced machine fatigue and increased output volume without compromising performance.
User-Friendly Controls and Ergonomic Design
Despite its industrial nature, the Shibang-4420 is designed with user ergonomics in mind. Its easy-to-reach control dials, clear markings, and minimalistic interface allow for intuitive operation, even for new operators. The adjustable work area, smooth pedal control, and accessible threading path make setup and operation streamlined, helping to minimize training time and reduce errors in production.
Seam Consistency Across Variable Fabrics
With its compound feeding technology and sturdy build, the machine delivers high stitch consistency across dissimilar materials. Whether working on quilted fabric layered with foam, stiff automotive vinyl, or heavy denim, the feed mechanism adjusts to the demands of each material without affecting the stitch line. This adaptability eliminates the need for excessive manual adjustments between fabric types.
Easy Maintenance and Serviceability
Routine maintenance is simplified through smart mechanical design. Oil reservoirs are easy to access and refill, and the sealed lubrication system keeps components running smoothly with reduced friction. Replaceable parts such as the presser foot, feed dogs, and needle bar are easily accessible, reducing machine downtime during maintenance. Comprehensive manuals and standard components ensure technicians can diagnose and repair quickly, keeping production lines active.
Precision-Engineered Bobbin and Thread Handling
The bobbin system is engineered to reduce backlash and maintain tension even during long runs. A larger bobbin size minimizes the frequency of bobbin changes, particularly beneficial in mass production settings. The upper thread tension can be finely tuned, supporting various thread types and sizes without compromising stitch quality.
Flexible Application Across Industries
The Shibang-4420 Compound Feed Double isn’t limited to one sector. It’s equally at home in leathercraft workshops, military gear assembly, furniture upholstery, automotive manufacturing, luggage factories, and canvas product workshops. Its adaptability to work with different textures, strengths, and thicknesses makes it one of the most versatile double-needle machines on the market.
Benefits of Using the Shibang-4420 in Production
Maximized Output Efficiency
With high-speed operation and minimal downtime, manufacturers can meet tight production deadlines without compromising quality. The double needle and compound feed system streamline complex stitching operations, reducing manual corrections and increasing the number of units produced per day.
Reduced Operator Fatigue
Its stable base, ergonomic foot pedal, and reduced vibration operation help limit physical fatigue during long shifts. This ergonomic consideration results in fewer errors, longer continuous operation, and improved worker satisfaction.
Lower Material Waste
Precision feeding and stitch consistency help eliminate errors that typically lead to wasted material. Fewer rejected pieces, misaligned stitches, or flawed seams mean significant cost savings over time.
Consistent Professional Finish
The precision of the compound feed and needle control results in a clean, uniform appearance across all stitches, meeting the aesthetic and structural standards of high-end and export-quality goods.
Broad Compatibility with Accessories
The Shibang-4420 can be outfitted with specialized accessories such as binding attachments, zipper feet, edge guides, and heavy-duty work tables. This modularity ensures that the machine can be tailored to specific project needs and scaled as production requirements evolve.
Industrial Applications of the Shibang-4420
-
Automotive Upholstery Manufacturing
Ideal for stitching vehicle seats, door panels, headrests, and steering wheel covers, where precision and strength are essential. -
Furniture and Interior Upholstery
Capable of handling thick layers of foam-backed fabrics, leather covers, and heavy textiles used in sofas, chairs, and recliners. -
Luggage and Bag Production
Supports the assembly of travel bags, backpacks, and sports equipment with reinforced seams and aesthetic double lines. -
Military and Tactical Gear
Perfect for producing field equipment such as tactical vests, duffle bags, and armored pouches requiring tough seams and layered material stitching. -
Leather Goods and Footwear
Well-suited for stitching components in leather jackets, belts, boots, and shoe uppers that need decorative or reinforcing dual seams. -
Tent and Canvas Product Manufacturing
Supports high-strength seams for outdoor products like tarps, awnings, tents, and covers, where durability is a priority. -
Industrial Safety Equipment
Used for creating fire-resistant clothing, harnesses, and protective covers that require precision engineering and consistent quality.
Intelligent Integration and Future Upgradability
As part of Shibang’s modern industrial equipment lineup, the 4420 model is compatible with future automation and digitization solutions. While it operates independently as a mechanical powerhouse, the machine can be upgraded or paired with optional smart modules, like servo motors, automation kits, and production analytics, depending on factory needs. Manufacturers seeking to implement Industry 4.0 principles or integrate with IoT-connected platforms can explore third-party integrations with smart tracking systems, remote diagnostics, and production monitoring software.
The Shibang-4420 Compound Feed Double is a masterclass in mechanical engineering for industrial stitching. Combining strength, speed, consistency, and precision, it sets a new benchmark for performance in its class. From heavy upholstery to tactical wear, this machine delivers the power and finesse required by today’s competitive manufacturing environments. Its durable design ensures longevity; its dual-needle system improves both aesthetics and seam strength; and its compound feed mechanism guarantees flawless material handling. Whether you run a large-scale factory or a specialized production unit, the Shibang-4420 is built to scale with your business and elevate your stitching capabilities.
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