FIBC（Jumbo）Bag Sewing Machine

With over 20 years of experience in industrial sewing machine manufacturing, Hebei LongSew Machinery Technology Co., Ltd. specializes in heavy-duty and extra heavy-duty sewing solutions for thick materials and heavy threads. Our background in both component manufacturing and complete sewing systems allows us to design machines based on real production requirements rather than theoretical specifications.

FIBC bags (Jumbo bags / bulk bags) are designed for high load capacity and long-term durability. Although their structure appears simple, the sewing process places strict demands on machine penetration power, stitch consistency, seam strength, and operational stability. Critical operations such as lifting loop sewing, spout attachment, bag body assembly, and top and bottom closing require machines capable of handling multiple fabric layers and high-tensile threads without skipped stitches or thread breakage.

In current FIBC bag production lines, manufacturers are increasingly replacing general-purpose sewing machines with specialized equipment to achieve stable quality and higher efficiency. Factors such as reduced operator dependency, repeatable stitch quality, and lower maintenance frequency have become key considerations in equipment selection.

LongSew FIBC bag sewing machines are developed specifically for these production conditions. By optimizing the machine structure, feeding mechanism, and thread handling system, our machines deliver reliable performance when sewing thick woven polypropylene fabrics and heavy threads. Each model is designed for a specific sewing operation, enabling manufacturers to establish a stable and scalable FIBC bag production process.

1.81300A1H is designed for FIBC bag side seaming and heavy-duty corner sewing, using double needles with four-thread safety stitch (401 + 502) for high seam strength. It handles multi-layer PP fabric up to 19 mm thickness with top and bottom feeding and filler cord function, ensuring stable sewing of thick materials. Equipped with pneumatic foot lift, hot cutter system, and a 750W servo motor, it delivers efficient, precise, and energy-saving operation.

2.80700CD4H is designed for heavy-duty sewing of jumbo bags, widely used in FIBC bag body assembly and reinforced seams. It is suitable for multi-layer woven PP fabric with filler cord, providing stable parallel seams using double needles and four-thread chain stitch (401 + 401). Designed for industrial production, the machine can handle material thickness up to 18 mm and supports efficient, continuous operation in FIBC bag producing lines.

3.80900 series is a cylinder bed sewing machine designed for FIBC bag circular sewing, including spout and round bag body operations. Compared with flat-bed machines, the cylinder bed design provides better access and control when sewing curved jumbo bag parts. This machine is suitable for thick, multi-layer materials and is widely applied in heavy-duty FIBC bag producing.

4.LS300-5030 is designed for automatic sewing of FIBC bag lifting belts (loop sewing), widely used in high-load jumbo bag production. It applies standardized pattern sewing to ensure consistent stitch quality and positioning for lifting loops, meeting higher strength and quality requirements. With a large working area up to 500 mm (optional 550 mm), this machine is suitable for industrial FIBC bag manufacturers upgrading from manual to automated loop sewing.

5.LS5800 series is designed for Q-type FIBC bag baffle sewing, mainly used for attaching internal baffles to jumbo bag bodies. Its large working space (635 × 160 mm) allows easy handling of large bag panels and internal structures during baffle seaming. With double-needle chain stitch, top and bottom feeding, and filler cord support, this machine provides stable and efficient sewing for reinforced FIBC bag production.

6.GSC367TD is designed for heavy-duty FIBC bag sewing, including bag body seams and lifting belt attachment. Compared with traditional bulk bag lockstitch machines, it offers improved sewing stability and efficiency when handling thick and reinforced materials. This machine is widely used in industrial FIBC bag production for reliable, high-strength lockstitch applications.

7.GSC367TDZ is a high-speed lockstitch sewing machine designed for FIBC bag production. It features a 1000W direct drive motor, pneumatic foot lift, and reverse sewing, with speeds up to 1600 RPM. Ideal for heavy-duty materials like lifting belts, it offers superior performance, auto lubrication, and enhanced efficiency.

8.LS200-3020CM is designed for automatic sewing of FIBC bag spout rosettes (outlet rosettes), used for standardized outlet mouth attachment in jumbo bag production. With a dedicated clamping fixture, it ensures accurate positioning and consistent sewing quality for spout rosettes. This machine is suitable for manufacturers requiring stable, repeatable, and efficient spout rosette sewing in  FIBC bag producing lines.

9.LS300-6050 is designed for automatic sewing of FIBC bag lifting belts (loop sewing), especially for large and high-load jumbo bags. With a super large working area of 600 × 500 mm, it allows sewing both sides of the lifting belt to the bag body in one operation for certain bag designs. This machine is widely used by FIBC manufacturers seeking standardized, high-efficiency loop sewing in FIBC bag producing lines.

10..LS200-5020 is designed for sewing FIBC bag loop rings and lifting belts, widely used in jumbo bag lifting structures. It is suitable for heavy-duty lifting belts up to 10 mm thickness, providing stable and repeatable pattern sewing for load-bearing applications. With flexible working area configurations, this machine is commonly applied in FIBC bag, lifting belt, and safety belt production requiring consistent quality.

11.LS6800 is designed for heavy-duty lockstitch sewing of FIBC bags and slings, supporting thick and high-density materials used in jumbo bag production. Compared with traditional bulk bag lockstitch machines, it offers improved sewing stability and seam quality for reinforced applications. This machine is widely applied in industrial FIBC bag producing lines for continuous heavy-duty sewing.

12.LS7800 sewing machine, an upgraded version of the 4-1 model, features a larger shuttle hook for handling thicker materials and threads, with speeds reaching up to 1000 RPM. It is widely used in FIBC bag production due to its stable quality and cost-effectiveness. Optional pneumatic foot lift and reverse sewing functions significantly enhance work efficiency.

13.DN-2 series sewing machine is widely used in the PP, paper, and jute bag industries, as well as for FIBC bag spouts and top skirt covers. The DN-2W features double needles and 4-thread chain stitch, while the DN-2LW is the left-hand type. New top and bottom feeding models, like the DN-2WU, offer enhanced feeding performance.

14.DN-2 series is designed for chain stitch seaming of PP, paper, and woven bags, including FIBC spout tube and top cover sewing. For specialized customer needs, we offer versions with an automatic cutter, such as DN-2HSC and DN-2WC, designed for bag production lines. The DN-2 series is known for its fast speed, stable quality, and compatibility with Newlong machines.

15.LS20-3 is designed for overedging (502) sewing of FIBC bags, applied for edge seaming and reinforcement. It supports wide overlock stitching with thick threads for stable jumbo bag production. This machine is commonly used as a simpler and more economical alternative to combined overlock and chainstitch systems.

16.GSC2602TD lockstitch sewing machine is designed for bulk bag production, replacing traditional shuttle hook machines like 4-1. With a 5x larger rotary hook and speeds up to 1200 RPM, it significantly boosts efficiency. Features such as pneumatic foot lift and reverse sewing enhance performance, making it ideal for sewing lifting belts, safety belts, and sports products.

17.LS5800HM sewing machine is a heavy-duty version of the LS5800, designed for FIBC production with a large working space (534*190mm) and enhanced features. It has a 45mm needle gauge, allowing it to sew both sides of a loop in one pass, improving efficiency. With top and bottom feeding, loop holding wheel, and a stainless steel 304 body, it’s perfect for sewing large bags and lifting belts, offering increased productivity and reliability.