80700 Series Double Needles Chain Stitch Sewing Machine - Hebei Longsew Machinery Technology Co., Ltd.

The 80700 series sewing machine is a cornerstone in the heavy-duty FIBC (Flexible Intermediate Bulk Container) bag manufacturing industry. Engineered to meet the demands of industrial-scale production, this machine combines durability, precision, and adaptability to ensure seamless operations for jumbo bags. Whether you're producing bags for agriculture, construction, or chemical industries, the 80700 series offers a tailored solution. This article delves into its features, technical specifications, applications, and the company behind its innovation.

Product Overview

The 80700 series is a specialized sewing machine designed for FIBC bag production. It is available in three primary configurations: 80700C (single needle), 80700CD (double needles), and 80700CD4H (advanced double needles with additional features). Each variant caters to specific production needs, allowing manufacturers to choose the optimal setup for their workflow.

The machine's versatility is evident in its customizable options. Users can select between flat bed or cylinder bed configurations, pneumatic foot lift or manual systems, and hot cutter or manual cutting mechanisms. This adaptability ensures compatibility with diverse bag designs and materials, from heavy-duty polypropylene to reinforced fabrics.

Key Features and Advantages

The 80700 series is engineered for heavy-duty performance and precision. Its robust construction and high-torque motor enable it to handle materials up to 18mm thickness, a critical requirement for FIBC bags that must withstand harsh conditions. The machine's double needle chain stitch design ensures strong, even seams, while the top and bottom feeding systems prevent material slippage during sewing.

One of the standout features is the filler cord function, which allows for seamless integration of reinforcing cords into the seams. This is particularly important for FIBC bags used in bulk material transportation, where structural integrity is paramount. The machine also includes top and bottom filler cord guides, ensuring consistent tension and alignment.

Optional Functions for Enhanced Performance

• Pneumatic foot lift system: Reduces operator fatigue by automating the foot lift mechanism.
• Hot cutter system: Ensures clean, sealed cuts, minimizing fraying and improving bag durability.
• Spout type table top and stand: Facilitates efficient handling of large bags during production.
• Servo motor or clutch motor: Provides precise speed control and energy efficiency.

The 80700CD4H variant includes additional advanced features such as a needle position fixed-up system and needle cooling system, which prevent overheating and ensure consistent stitching quality. Its 220V single-phase 750W servo motor delivers powerful performance while consuming less energy, making it an eco-friendly choice for manufacturers.

Technical Specifications

Specification	Details
Maximum Sewing Thickness	18mm
Max Speed	1400 rpm
Needle Distance	7.2mm
Stitch Range	6-12mm (Standard: 10mm)
Needle Configuration	Double needles (4 threads parallel chain stitch: 401+401)
Feeding System	Top and bottom feeding
Motor Type	220V single-phase 750W servo motor
Additional Features	Pneumatic foot lift, hot cutter, needle position fixed-up, and cooling systems (for 80700CD4H)

Applications in FIBC Bag Manufacturing

The 80700 series is a vital tool for industries requiring high-volume, high-strength FIBC bag production. Its applications include:

• Agricultural products: Bags for fertilizers, seeds, and grains.
• Chemical industry: Sealed bags for powders, liquids, and hazardous materials.
• Construction materials: Transport of cement, sand, and aggregates.
• Food industry: Compliance with hygiene standards for food-grade FIBC bags (using stainless steel components).

The machine's stainless steel 304 table top cover and machine body shell (available in the 80700CD4H model) meet stringent hygiene requirements, making it ideal for food and pharmaceutical applications. Its hot cutter system ensures precise, sealed edges, reducing contamination risks.

Company Background: Hebei Longsew Machinery Technology Co., Ltd.

Founded with a focus on industrial sewing solutions, Hebei Longsew Machinery Technology Co., Ltd. has established itself as a leader in FIBC bag production equipment. With decades of experience, the company combines traditional craftsmanship with modern technology to deliver reliable, high-performance machines.

Longsew's commitment to innovation is evident in its continuous improvements to the 80700 series. The company's products are trusted globally, with a strong presence in markets across Asia, Europe, and the Americas. Their customer-centric approach ensures that each machine is tailored to meet the specific needs of manufacturers.

According to the National Institute of Standards and Technology (NIST), "Precision and reliability in manufacturing equipment are critical for maintaining quality and efficiency in industrial processes." Longsew's adherence to these principles underscores its reputation as a dependable partner for FIBC bag producers.

Conclusion

The 80700 series sewing machine is a testament to engineering excellence in FIBC bag manufacturing. Its robust design, customizable features, and advanced technologies make it an indispensable asset for industries requiring durable, high-volume packaging solutions. Whether you're producing standard jumbo bags or specialized food-grade container111s, this machine offers the versatility and performance needed to thrive in a competitive market.

For more information about Hebei Longsew Machinery Technology Co., Ltd. and their products, visit their official website. Explore the 80700 series to find the perfect solution for your production needs.

References

National Institute of Standards and Technology (NIST). (n.d.). Driving Innovation. Retrieved from https://www.nist.gov