MACHINE NAME: DOUBLE NEEDLE DOUBLE JUMP FLAT SEWING MACHINE  

MODEL NO: SB-845/875

BRAND: SHIBANG

FEATURES

• New auto thread cutting design and the auto reverse feed effectively improving the stitching quality and efficiency.
• Needle threader eyelet group to refer to different demands any change, increasing use of convenience. Automatic lubrication system, running smooth noise are easy to maintain.

TECHNICAL PARAMETER

1. Model                      : SB-845/875
2. Sewing speed           : 3000rpm
3. The foot to promote : 7mm
4. Max. needle pitch    : 5/7mm
5. Needle                    : DPx5(#14/22)/DPx5(#22)

The Shibang-845 / 875 Double Needle Sewing Machine is a robust and highly efficient industrial sewing solution specifically engineered to meet the rigorous demands of modern footwear manufacturing, leather goods production, and heavy fabric stitching. Known for its precision, durability, and adaptability, this machine offers superior stitch quality and exceptional performance, making it a preferred choice in shoe factories and textile production lines worldwide. Designed to handle various materials from soft leather and synthetic fabrics to tough industrial textiles, the Shibang-845 / 875 series excels in delivering strong, consistent double-needle stitching with remarkable speed and reliability. This machine combines advanced mechanical engineering with user-friendly operation, offering manufacturers a cost-effective and time-saving tool to enhance productivity and stitch quality.

Core Features and Functional Highlights

Precision Double Needle Stitching

Equipped with two needles operating simultaneously, the Shibang-845 / 875 delivers parallel double-needle stitches that provide enhanced seam strength and aesthetic appeal. This dual-needle setup is essential for footwear uppers, bags, and other leather or fabric products requiring durable, evenly spaced stitches. The machine maintains precise needle alignment and synchronized needle penetration, preventing skipped stitches and ensuring clean, uniform seams. This feature is critical for high-quality footwear production, where seam integrity directly impacts product durability.

Versatile Material Handling

The Shibang-845 / 875 series is engineered to sew a wide range of materials, including genuine leather, synthetic leather, canvas, denim, rubber sheets, and other thick or multi-layered fabrics. Its powerful motor and optimized feed system enable smooth feeding of challenging materials without compromising stitch quality. This versatility allows manufacturers to use a single machine for diverse product lines, reducing equipment costs and production complexity.

High-Speed, Stable Operation

Powered by a reliable 3HP motor, the Shibang-845 / 875 supports high-speed stitching, increasing throughput while maintaining stitch precision. The machine’s robust mechanical construction minimizes vibration and noise, ensuring stable operation even during prolonged heavy-duty use. This stability is vital in industrial settings where consistent stitch quality and operator comfort are both priorities.

User-Friendly Control and Adjustment

The machine features intuitive adjustment knobs and levers for stitch length, needle position, thread tension, and presser foot pressure. Operators can quickly fine-tune settings for different materials and stitch requirements without the need for complex tools or extensive downtime. Additionally, the machine supports easy threading and maintenance, reducing operator fatigue and increasing uptime.

Durable Build with Quality Components

Constructed with high-quality steel components and precision-machined parts, the Shibang-845 / 875 is designed for longevity and low maintenance. Its reinforced frame withstands the mechanical stresses of industrial use, ensuring years of reliable performance. The machine also includes hardened needles and heavy-duty feed dogs designed to handle abrasive materials without rapid wear, further extending the service life.

Optional Automation and Integration Features

For advanced production lines, the Shibang-845 / 875 can be equipped with optional automation accessories such as electronic stitch counters, automatic thread cutters, and programmable stitch pattern modules. These enhancements facilitate integration into automated manufacturing workflows, boosting efficiency and reducing labor costs.

Benefits and Operational Advantages

Time Efficiency and Increased Productivity

With its high-speed motor and efficient feed mechanism, the Shibang-845 / 875 significantly reduces stitching cycle times compared to conventional single-needle machines. The double-needle configuration cuts down the number of passes required to complete seams, accelerating production without sacrificing quality. This efficiency translates to higher output levels and faster order fulfillment, providing competitive advantages in fast-paced manufacturing environments.

Superior Seam Strength and Product Durability

Double-needle stitches are inherently stronger than single lines due to their parallel reinforcement, reducing seam failure under stress. This attribute is particularly important in footwear manufacturing, where seams endure constant flexing and wear. By ensuring strong and consistent seams, the Shibang-845 / 875 contributes directly to the longevity and reliability of finished products, enhancing customer satisfaction and brand reputation.

Reduced Labor Costs and Training Time

The machine’s straightforward controls and ergonomic design simplify operation and reduce training requirements. Operators can quickly learn to adjust settings and maintain the machine, minimizing errors and downtime. Lower labor overhead combined with improved production speed makes the Shibang-845 / 875 a cost-effective choice for manufacturers seeking operational efficiencies.

Versatile Production Capabilities

Whether sewing thick leather uppers, synthetic overlays, or fabric linings, the Shibang-845 / 875 adapts easily to varied production needs. This flexibility means fewer machines are needed on the production floor, simplifying logistics and reducing capital expenditure.

Technical Specifications Overview

• Model: Shibang-845 / 875

• Motor Power: 3HP industrial motor for sustained high-speed stitching

• Needle Configuration: Double needle for parallel stitching

• Stitch Length: Adjustable, typically from 2mm to 6mm

• Feed System: Optimized walking foot feed for smooth material advancement

• Max Sewing Speed: Up to 3000 stitches per minute, depending on material

• Operating Voltage: 220V or customizable per factory standards

• Machine Dimensions: Approx. 1200 mm (L) × 700 mm (W) × 1200 mm (H)

• Weight: Around 180 kg, ensuring stable operation without vibration

• Material Compatibility: Leather, synthetic leather, canvas, rubber, and more

Applications and Industry Usage

The Shibang-845 / 875 double needle sewing machine is widely used in:

• Footwear Industry: Stitching uppers, linings, and components for casual, formal, and sports shoes

• Leather Goods Manufacturing: Producing handbags, wallets, belts, and accessories requiring durable seams

• Automotive and Upholstery: Sewing leather and fabric components for vehicle interiors and furniture

• Industrial Textiles: Handling heavy-duty fabrics for protective clothing, tarps, and industrial covers

Operational Guidance and Maintenance Tips

Setup and Operation

Operators should familiarize themselves with the machine’s control panel and adjust stitch length, thread tension, and presser foot pressure according to the material being sewn. Proper needle selection and threading are crucial for optimal stitch quality and to prevent thread breakage.

Regular Maintenance

Routine maintenance includes cleaning lint and dust from the feed dogs and bobbin area, lubricating moving parts according to the manufacturer’s schedule, and inspecting needles for wear or damage. Timely replacement of needles and threads preserves seam quality and reduces machine downtime.

Troubleshooting Common Issues

• Skipped Stitches: Often due to improper needle installation or worn needles—replace needles and check threading.

• Thread Breakage: May result from incorrect tension settings or poor-quality thread—adjust tension and use recommended thread types.

• Uneven Feeding: Check the walking foot mechanism and clean feed dogs regularly to ensure smooth material advance.

Why Invest in the Shibang-845 / 875 Double Needle Sewing Machine?

The Shibang-845 / 875 series stands out as a dependable, high-performance sewing solution that significantly enhances stitching productivity and quality in industrial settings. Its dual-needle technology provides superior seam strength essential for footwear and leather goods, while its rugged construction guarantees years of trouble-free operation. Manufacturers choosing this machine benefit from faster production cycles, reduced labor costs, versatile material compatibility, and consistent stitch quality. Whether you are upgrading your factory or establishing a new production line, the Shibang-845 / 875 offers a future-proof investment that balances efficiency with craftsmanship.