Single Needle, Stepper Automatic Computer Roller Sewing Machine Shibang-1891

The Shibang-1891 is a cutting-edge single needle, stepping motor-driven, fully automatic computer roller sewing machine designed to deliver superior stitching precision, efficiency, and reliability for the footwear and leather manufacturing industries. As a prominent member of Shibang’s acclaimed Roller Car Series, this machine embodies advanced automation, high adaptability, and robust construction to meet the evolving needs of modern production environments.Engineered to meet rigorous industry standards, the Shibang-1891 excels in sewing a diverse range of products, including riding boots, sports shoes, work shoes, casual shoes, sponge shoes, baby shoes, and premium-grade leather footwear. It combines innovative features like programmable needle distance, three-way synchronous feeding, and automatic thread trimming to ensure consistent, high-quality results while minimizing operator intervention.

Product Features

Stepper Motor Controlled Feeding

At the heart of the Shibang-1891 lies a high-precision stepper motor, which controls the feeding mechanism with exceptional accuracy. This advanced motor technology provides:

• Enhanced stitch overlap performance: The stepping motor ensures stitches overlap precisely, reducing gaps or skipped stitches that could compromise seam integrity.

• Stable feeding consistency: The motor maintains smooth and stable material movement through the sewing area, even under heavy-duty or multi-layer conditions.

• Variable speed adaptability: Maintains low error rates in needle distance whether sewing at high or low speeds, allowing for precise control over stitch formation.

Three-Way Synchronous Feeding

The Shibang-1891 incorporates a sophisticated three-way synchronous feeding system which coordinates:

• Feed dog movement

• Roller feeding

• Needle bar motion

This coordination allows for:

• Forward and reverse sewing: Ensures perfect stitch formation in both directions.

• Excellent reverse sewing climbing ability: When sewing backward, the machine can smoothly climb multiple layers without stitch distortion or material slippage, critical for reinforcing seam ends and ensuring durability.

Programmable Needle Distance Control

This machine offers digital control over the needle spacing, enabling operators to program precise needle distances according to specific sewing processes and material requirements. This feature results in:

• High flexibility: Easily adjusts to different stitching patterns or product specifications without mechanical modification.

• Improved product consistency: Guarantees repeatable stitch spacing, critical for mass production quality assurance.

Up and Down Differential Feeding

The Shibang-1891 is equipped with an up and down differential feeding function to accommodate materials of varying thickness and stretch characteristics. This feeding system:

• Minimizes material misalignment: Especially useful when sewing multi-layered or elastic materials like sponge shoes or high-grade leather.

• Maintains seam quality: Prevents puckering, shifting, or distortion during stitching, ensuring an even and professional finish.

Low Error Rate in Needle Distance Variation

Through precise engineering and electronic control, the machine maintains a small error margin in needle distance changes, even at variable sewing speeds, which means:

• Consistent seam quality across different operational conditions

• Reduced waste due to stitch defects

User-Friendly LCD Operation Panel

The Shibang-1891 features a clear, intuitive LCD control panel designed to simplify operation for users of all skill levels. The panel allows:

• Easy programming and customization: Adjust stitch length, needle distance, speed, and feeding settings with simple menu navigation.

• Real-time feedback: Display operational status, error alerts, and maintenance reminders.

• Simplified troubleshooting: Reduces downtime and enhances productivity.

Automatic Thread Trimming and Presser Foot Control

To boost efficiency and reduce manual labor, the machine integrates:

• Automatic thread trimming: Eliminates the need for secondary manual wire cutting, increasing throughput and reducing operator fatigue.

• Automatic presser foot lift: Ensures smooth material handling between stitching sequences, reducing material damage and facilitating quick repositioning.

Functional Overview

The Shibang-1891 combines several advanced automation features into a compact, all-in-one design that streamlines the sewing process:

• Automatic reverse stitching: Enables secure seam starts and ends, enhancing seam strength without manual intervention.

• Automatic thread trimming: Automatically cuts the thread after each seam, ensuring clean finish and saving operator time.

• Automatic presser foot lift: Lifts the presser foot upon cycle completion, easing fabric repositioning for the next stitch.

Applications

The Shibang-1891 is a versatile sewing machine optimized for a broad range of footwear and leather goods manufacturing, including but not limited to:

• Riding boots: Perfect for heavy leather and multi-layered designs requiring secure, durable stitching.

• Sports shoes: Handles a variety of synthetic and mesh materials with reliable stitch integrity.

• Work shoes: Durable enough for thick leather and composite materials typical in safety footwear.

• Casual shoes: Provides fine stitch detailing for fashion-forward designs.

• Sponge shoes: Adapts to softer, flexible materials requiring differential feeding to prevent distortion.

• Baby shoes: Offers precision sewing for smaller sizes and delicate materials.

• High-grade leather shoes: Maintains luxury craftsmanship standards with consistent stitch quality.

Technical Specifications

Advantages and Benefits

Precision and Quality

The stepper motor combined with programmable needle spacing and synchronized feeding delivers consistent stitch quality, reducing errors and enhancing seam durability.

Increased Productivity

Automatic features such as thread trimming, presser foot lift, and reverse stitching reduce manual intervention, accelerating production lines and minimizing operator fatigue.

Versatility

The machine adapts to a broad spectrum of shoe styles and materials, from thick leather to soft sponge, offering unparalleled flexibility in a single platform.

Ease of Operation

The LCD panel simplifies machine setup and monitoring, reducing training time and enhancing operational efficiency.

Durability and Maintenance

Built with high-quality components and equipped with automatic lubrication, the Shibang-1891 ensures long-term durability and low maintenance costs.

Related Product Series

For a complete manufacturing workflow, Shibang offers complementary machines:

• Line Drawing Machine Series: For precise stitching guides and patterns.

• Cutting Machine Series: Advanced cutting solutions for leather and fabric.

• Roller Car Series: Includes the Shibang-1891 and other roller sewing machines.

• Computer Pattern Machine: Automates complex stitching patterns.

• Special Machine Series: For embroidery, edge binding, and unique stitching needs.

• Luggage, Handbags, Sofas Series: Specialized machines for heavy-duty leatherwork.

• Herringbone Stitching Machine: For decorative and structural stitching.

• Shoe Sewing Machines & Shoe Machine Series: Comprehensive shoe production solutions.

• Auxiliary Equipment: Including thread feeders, tables, vacuum systems, and more.