80700CD4H Chain Stitch Sewing Machine - HEBEI LONGSEW | High-Speed Precision&Durability

The **80700 series sewing machine** is a cornerstone of the heavy-duty FIBC (Flexible Intermediate Bulk Container) bag manufacturing industry. Designed to meet the rigorous demands of producing large-scale industrial bags, this machine offers versatility, durability, and precision. Whether you're working with **FIBC sewing machines**, **chain stitch sewing machines**, or **double chain stitch sewing machines**, the 80700 series stands out for its advanced features and reliability. This article delves into the product's functionality, technical specifications, applications, and the company behind it, **HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD**.

**Product Overview**

The **80700C/80700CD/80700CD4H** models are part of a family of **chain stitch sewing machines** tailored for **FIBC bag production**. These machines are engineered to handle the unique challenges of sewing **jumbo bags**, which require robust construction and high-speed performance. The 80700 series offers multiple configurations to suit different production needs, including single or double needles, flat or cylinder beds, and pneumatic or manual foot lift systems. The **80700CD4H** variant, in particular, is equipped with advanced features like a **pneumatic foot lift system**, **hot cutter system**, and **needle cooling system**, making it ideal for high-volume, high-precision applications.

**Key Features and Functionalities**

The **80700 series** is distinguished by its **heavy-duty construction** and **multi-functional capabilities**. Below are some of its standout features:

• Double Needles Chain Stitch: The **80700CD** and **80700CD4H** models utilize a **4-thread parallel chain stitch (401+401)**, ensuring strong and durable seams. This is critical for **FIBC bags** that must withstand heavy loads and harsh environments.
• High-Speed Operation: With a **maximum speed of 1400 rpm**, these machines can keep up with fast-paced production lines. The **needle distance of 7.2mm** and **stitch range of 6-12mm** (standard setting at 10mm) allow for flexibility in seam design.
• Advanced Systems: The **80700CD4H** includes a **pneumatic foot lift system**, **hot cutter system**, **needle position fixed up system**, and **needle cooling system**. These features enhance efficiency and reduce downtime during operation.
• Motor Options: Users can choose between **clutch motors** and **servo motors**, with the **80700CD4H** requiring a **220V single-phase 750W servo motor** for optimal performance. Servo motors provide **energy efficiency** and **strong power**, making them ideal for continuous use.
• Material Compatibility: The machines are designed to handle materials up to **18mm in thickness**, including **filler cords**. This makes them suitable for **food-grade FIBC bags** and other high-standard applications.

**Technical Specifications**

**Applications and Industry Use Cases**

The **80700 series** is widely used in industries that require **high-volume FIBC bag production**. These include:

• Chemical Industry: For packaging **hazardous materials** that require **leak-proof** and **durable** container111s.
• Food Industry: **Food-grade FIBC bags** are produced using **stainless steel components** (e.g., S.S. 304 table top and machine body) to meet **hygiene standards**.
• Construction Materials: Used for **cement**, **sand**, and **aggregates** packaging, where **strength** and **reliability** are paramount.
• Pharmaceuticals: Ensuring **sterile** and **contamination-free** packaging for medical supplies.

The **80700CD4H** is particularly suited for **automated production lines** due to its **pneumatic systems** and **hot cutter capabilities**, which reduce manual intervention and increase efficiency.

**Company Background: HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD**

**HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD** has a long-standing reputation in the **FIBC sewing machine** industry. With decades of experience, the company specializes in **heavy-duty industrial sewing machines** tailored for **jumbo bag** and **big bag** production. Their commitment to **innovation** and **quality** is evident in the **80700 series**, which remains a **bestseller** among manufacturers worldwide.

As highlighted by the **National Institute of Standards and Technology (NIST)**, "Precision and reliability are critical in manufacturing to ensure product consistency and safety" (NIST, 2025). HEBEI LONGSEW aligns with these principles by adhering to **strict quality control measures** and **advanced engineering standards**.

**Why Choose the 80700 Series?**

The **80700 series** offers several advantages over traditional sewing machines:

• Customization: With options like **flat bed** or **cylinder bed**, users can select the configuration that best suits their production needs.
• Durability: The **sturdy motor** and **heavy-duty frame** ensure long-term performance, even under demanding conditions.
• Energy Efficiency: The **servo motor** in the **80700CD4H** reduces energy consumption while maintaining high output.
• Compliance: The use of **S.S. 304 materials** ensures compliance with **food and pharmaceutical standards**, making it ideal for sensitive applications.

**Conclusion**

The **80700C/80700CD/80700CD4H** sewing machines are indispensable tools for **FIBC bag manufacturers** seeking **precision**, **speed**, and **reliability**. Whether you're producing **chemical container111s**, **food-grade bags**, or **construction materials**, these machines deliver **consistent performance** and **versatile functionality**. For more information, visit the **[product page](https://www.longsew.com/fibc-bag-jumbo-bag-big-bag-double-needles-chain-stitch-sewing-machine-80700c-80700cd-80700cd4h.html)** or explore **[HEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTD](https://www.longsew.com)** to learn more about their **chain stitch sewing machines** and **FIBC bag production solutions**.

**References**

NIST. (2025). *Precision and Reliability in Manufacturing*. Retrieved from https://www.nist.gov