80700 Series Double Needles Chain Stitch Sewing Machine - HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD

Introduction to FIBC Bags and Industrial Sewing Solutions

FIBC (Flexible Intermediate Bulk Containers) bags, also known as jumbo bags or big bags, are essential in industries such as agriculture, construction, and logistics for transporting and storing bulk materials. Their durability and versatility make them a preferred choice for heavy-duty applications. However, the production of these bags requires specialized machinery capable of handling thick materials and ensuring precise stitching. The 80700 series double needles chain stitch sewing machine is a prime example of such technology, designed to meet the demands of FIBC bag manufacturing. This article explores the features, advantages, technical specifications, and applications of this industrial sewing machine, as well as the company behind its development: HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD.

Product Overview: 80700 Series Chain Stitch Sewing Machine

The 80700 series is a line of heavy-duty sewing machines specifically engineered for FIBC bag production. These machines are designed to handle the unique challenges of manufacturing large, durable bags, including sewing thick materials, maintaining precision, and ensuring longevity. The series includes three primary models: 80700C (single needle), 80700CD (double needles), and 80700CD4H (double needles with advanced features). Each model offers customizable options to suit different production needs, such as motor type, bed style, and additional functions like pneumatic foot lift systems and hot cutter systems.

The 80700CD4H model, in particular, stands out for its advanced capabilities. It features a maximum thickness capacity of 18mm, a high-speed motor capable of 1400 rpm, and double needles with 4-thread parallel chain stitching. These specifications make it ideal for high-volume production environments where efficiency and precision are critical.

Technical Specifications and Key Features

The 80700 series is equipped with a range of technical features that set it apart from standard sewing machines. Below is a detailed overview of its specifications:

The servo motor in the 80700CD4H model ensures strong power and energy efficiency, making it suitable for continuous operation. The pneumatic hot cutter system allows for precise cutting of materials, while the needle cooling system prevents overheating during extended use. Additionally, the needle position fixed system ensures consistent stitching, reducing the risk of errors in high-volume production.

Advantages of the 80700 Series Sewing Machine

The 80700 series offers several advantages that make it a preferred choice for FIBC bag manufacturers:

• Heavy-Duty Construction: The machine's robust design and high-capacity motor enable it to handle thick materials, such as woven polypropylene, without compromising performance.
• Customizable Options: Users can choose between single or double needles, flat or cylinder beds, and pneumatic or manual systems, allowing for flexibility in production workflows.
• High Efficiency: With a maximum speed of 1400 rpm, the machine significantly reduces production time, increasing overall productivity.
• Durability and Reliability: The use of stainless steel (S.S. 304) components for the table top and machine body ensures resistance to corrosion, making it suitable for food-grade and other high-standard applications.
• Advanced Safety Features: The pneumatic foot lift system and hot cutter system enhance operator safety and precision during operation.

Applications in FIBC Bag Manufacturing

The 80700 series is widely used in the production of FIBC bags, which are critical in industries such as agriculture, construction, and chemical manufacturing. Its ability to handle thick materials and deliver precise stitching makes it ideal for the following applications:

• Seaming of Woven Polypropylene: The machine's heavy-duty motor and chain stitch capability ensure strong, durable seams for bags used in transporting bulk materials.
• Spout and Handle Installation: The spout type table top and stand option allows for efficient installation of spouts and handles, which are essential for loading and unloading materials.
• Customization for Special Requirements: The S.S. 304 table top cover and machine body shell meet the hygiene and safety standards required for food and pharmaceutical industries.

According to the National Institute of Standards and Technology (NIST), "Precision and reliability in industrial machinery are critical for maintaining quality and safety in manufacturing processes" (NIST, 2025). The 80700 series exemplifies these principles by delivering consistent performance in demanding environments.

About Hebei Longsew Machinery Technology Co., Ltd.

HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD is a leading manufacturer of industrial sewing machines, specializing in FIBC bag production equipment. With a long history of innovation and a commitment to quality, the company has established itself as a trusted supplier in the global market. Their expertise in developing chain stitch sewing machines has made them a preferred partner for manufacturers seeking reliable and efficient solutions.

The 80700 series is a testament to the company's dedication to meeting industry needs. As highlighted in their product description, "We have long history in producing this sewing machine, till now this model still the most popular one for FIBC bag manufacture" (Longsew, 2024). This enduring popularity underscores the machine's effectiveness and the company's reputation for excellence.

Conclusion: A Reliable Solution for FIBC Bag Production

The 80700 series double needles chain stitch sewing machine is a robust and versatile solution for FIBC bag manufacturers. Its advanced features, including the 80700CD4H model's pneumatic systems and high-speed motor, ensure efficiency, precision, and durability in high-volume production environments. By offering customizable options and meeting industry standards, this machine addresses the diverse needs of modern manufacturing.

For those interested in learning more about the 80700 series or exploring other products from HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD, visit their official website: Product Page and Company Website.

References

NIST (National Institute of Standards and Technology): "Precision and reliability in industrial machinery are critical for maintaining quality and safety in manufacturing processes." https://www.nist.gov

HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD: Product description and specifications. https://www.longsew.com/fibc-bag-jumbo-bag-big-bag-double-needles-chain-stitch-sewing-machine-80700c-80700cd-80700cd4h.html