MACHINE NAME: DOUBLE-THREAD SAFETY SEWING MACHINE 

MODEL NO: SB-168

BRAND: SHIBANG

FEATURES

• Separable-type transmission pulley that will run five idle turns and cut off power automatically when encountering any obstacle in operations
• It is able to stitch with the No. 18thread with out changing the rotating hook opener.
• No thread ends at needle points.
• Double shaft positioning thus improving durability of the main shaft.
• Equipped with P.I.V motor to position the needle and lift the presser foot automatically.

APPLICATION

• It is suitable for sports shoes, casual shoes, sandals, skates, and other footwear products. Suitable for kinds of shoe products, such as sports shoes, leisure shoes, sandal, roller skates, etc.

TECHNICAL PARAMETER

1. Model                      : SB-168
2. Sewing speed           : 2000rpm
3. The foot to promote : 13mm
4. Max. needle pitch    : 13mm
5. Needle                    : DPx5

The Shibang-168 Double-Thread Safety Sewing Machine is a premier industrial sewing solution designed for producing durable, high-quality safety stitches in heavy and medium-weight fabrics. Known for its exceptional strength, efficiency, and reliability, this machine is widely adopted in garment manufacturing, upholstery, and technical textiles industries. Featuring double-thread lockstitch technology, robust construction, and advanced feed mechanisms, the Shibang-168 ensures consistent stitch quality while accommodating high-speed production demands.This comprehensive overview explores the technical specifications, design innovations, operational capabilities, maintenance requirements, and practical applications of the Shibang-168, demonstrating why it is a trusted choice for manufacturers seeking efficiency and durability in safety stitching.

Machine Design and Build Quality

Rugged Frame and Construction

At the core of the Shibang-168 is a heavy-duty cast iron frame engineered to withstand rigorous industrial use. The robust frame ensures vibration-free operation, essential for maintaining stitch precision and extending machine lifespan. The metal parts undergo anti-corrosion treatments and precision machining, guaranteeing consistent alignment and smooth mechanical performance.

Compact and Functional Layout

Despite its industrial strength, the Shibang-168 offers a streamlined footprint. Its compact design fits easily into diverse production lines, from standalone sewing stations to integrated assembly setups. The machine layout prioritizes user ergonomics, with controls, thread guides, and adjustment knobs positioned for intuitive access, reducing operator fatigue and improving workflow efficiency.

High-Quality Components

The machine incorporates premium components such as hardened needles, durable shuttle hooks, and precision feed dogs, all designed for longevity and minimal wear. Critical parts like the tension assembly and presser foot are adjustable, allowing fine-tuning for various fabric types and thicknesses.

Technical Specifications

• Stitch Type: Double-thread lockstitch safety stitch

• Max Sewing Speed: 3500 stitches per minute

• Needle System: DPx17 (or equivalent), suitable for heavy-duty threads

• Thread Type: Polyester, nylon, or cotton threads compatible

• Feed Mechanism: Compound feed combining needle feed and walking foot

• Stitch Length: Adjustable from 2mm to 6mm

• Needle Bar Stroke: Approximately 33mm

• Presser Foot Pressure: Adjustable for varied fabric thickness

• Lubrication: Automatic centralized lubrication system

• Motor: High-efficiency servo motor for speed control and energy savings

• Working Area: Large throat space for bulky materials

Innovative Features

Double-Thread Lockstitch Mechanism

The Shibang-168 utilizes a double-thread lockstitch system that produces strong, reliable seams essential for safety apparel and heavy-duty fabric products. The lockstitch ensures the stitch does not unravel under stress, crucial for protective clothing and industrial textiles.

Compound Feed System

Unlike conventional feed systems, the compound feed combines needle feed with walking foot action. This results in smooth, uniform fabric movement, preventing puckering and fabric slippage even with thick, multi-layered materials like denim, canvas, or leather.

Servo Motor with Speed Control

Equipped with a modern servo motor, the Shibang-168 offers precise speed adjustment and energy efficiency. The motor reduces noise and vibration, enhancing operator comfort while lowering power consumption by up to 50% compared to traditional clutch motors.

Automatic Lubrication

The machine features an automatic centralized lubrication system that continuously oils moving parts, reducing wear and maintenance frequency. This extends machine life and ensures smooth operation even during prolonged usage.

Adjustable Presser Foot Pressure

To handle various fabric thicknesses and textures, the Shibang-168 allows operators to adjust presser foot pressure. This customization ensures optimal fabric feeding and stitch quality, preventing damage to delicate materials or fabric shifting.

Enhanced Thread Tension Assembly

The tension assembly is engineered for stability and precision, accommodating heavy-duty threads without thread breakage or tension irregularities. This results in uniform stitch appearance and strong seam integrity.

Applications

Safety and Protective Apparel

The Shibang-168 is ideal for manufacturing safety garments such as firefighter uniforms, workwear, and reflective clothing. The double-thread lockstitch creates seams that withstand extreme conditions, including abrasion, heat, and chemical exposure.

Upholstery and Furniture

In upholstery production, the machine sews through thick layers of fabric and foam, delivering durable seams for sofas, car seats, and office furniture. The compound feed system prevents material bunching, ensuring neat, long-lasting stitches.

Heavy-Duty Bags and Luggage

Manufacturers of backpacks, industrial bags, and luggage rely on the Shibang-168 for strong stitch lines that hold heavy loads without seam failure.

Denim and Casual Wear

Ideal for jeans and heavy casual wear, the machine accommodates tough fabrics and thick threads, producing neat double-thread safety stitches popular in fashion and workwear.

Technical Textiles

For industries producing tarpaulins, tents, and protective covers, the Shibang-168 ensures strong, durable seams resistant to environmental stress.

Operation and Handling

User-Friendly Interface

The Shibang-168 is designed for operators of varying skill levels. Its adjustment knobs, stitch length controls, and tension dials are clearly marked and easy to access, facilitating quick setup and changeover between jobs.

Threading and Bobbin Replacement

The machine provides straightforward threading paths with color-coded guides. The bobbin system is engineered for easy loading and smooth thread delivery, minimizing downtime during thread changes.

Stitch Monitoring and Quality Control

Operators can monitor stitch formation visually and adjust settings on the fly. The machine’s consistent stitch quality reduces the need for rework, improving overall production efficiency.

Noise and Vibration Reduction

The advanced servo motor and well-engineered frame reduce operational noise and vibration, creating a more comfortable working environment that can improve operator focus and reduce fatigue.

Maintenance and Longevity

Routine Maintenance

Daily maintenance includes cleaning lint and debris from the needle plate, bobbin area, and feed dogs. Lubrication is handled automatically, but periodic inspection of oil levels and pump function is recommended.

Troubleshooting Tips

Common issues such as skipped stitches or thread breakage are typically resolved by checking needle condition, thread tension, and thread quality. The machine’s manual provides detailed troubleshooting guidelines.

Spare Parts and Support

Shibang provides a wide range of genuine spare parts and accessories, ensuring that operators can maintain the machine in optimal condition. Technical support and service manuals are available to facilitate repairs and adjustments.

Advantages and Benefits

• Exceptional Stitch Strength: Double-thread lockstitch ensures maximum seam durability and safety.

• Versatile Fabric Handling: Compound feed system handles a wide range of heavy and medium-weight materials.

• Energy Efficient: Servo motor reduces power consumption and noise.

• Operator Comfort: Ergonomic design and vibration reduction improve working conditions.

• Low Maintenance: Automatic lubrication minimizes downtime and extends component life.

• Precision Control: Adjustable settings allow customization for varied applications.

• High-Speed Production: Capable of 3500 stitches per minute to meet industrial output demands.

Industry Impact and User Testimonials

Across apparel manufacturing, upholstery, and industrial textile sectors, the Shibang-168 has earned praise for reliability and performance. Users report significant improvements in seam quality, reduction in production stoppages, and enhanced operator productivity. The machine's durability and ease of use make it a valuable asset in demanding manufacturing environments.

The Shibang-168 Double-Thread Safety Sewing Machine is a powerful and reliable industrial sewing solution engineered to meet the stringent demands of safety stitching on heavy-duty fabrics. Combining robust mechanical design, advanced servo motor technology, and innovative feeding systems, it delivers superior stitch quality and production efficiency.Ideal for a broad range of industries—from protective clothing and upholstery to denim manufacturing—the Shibang-168 provides manufacturers with the precision, strength, and durability required for high-quality seam production. Its user-friendly operation, energy efficiency, and low maintenance needs further enhance its value, making it a preferred choice for industrial sewing operations worldwide.By investing in the Shibang-168, manufacturers secure a versatile, high-performance sewing machine capable of driving productivity and quality improvements, ensuring they stay competitive in an evolving market.