Equipment upgrades empower: Significant improvements in both capacity and quality of bulk bags.

In today's increasingly competitive manufacturing environment, production efficiency and cost control have become crucial factors for companies to maintain their market competitiveness. Some companies'bag manufacturing plants have recently achieved significant improvements in the efficiency of bulk bag production and a substantial reduction in processing costs by introducing new sewing equipment and establishing efficient assembly lines. This has laid a solid foundation for a dual leap forward in both the capacity and quality of the company's bulk bag production.

The Necessity of Equipment Upgrades

Before introducing new equipment, the company's bulk bag production primarily relied on traditional sewing equipment. Production was mainly based on single-person operation, resulting in high per-bag sewing costs and a cumbersome sewing process. The low processing efficiency made it difficult to meet the company's production and packaging needs, severely limiting the potential for increased bulk bag production capacity.

At the same time, with technological advancements, the automation penetration rate in the bulk bag industry gradually increased, and more and more peer companies began to introduce automated equipment to seize market share with higher production efficiency, lower prices, and higher quality.

Against this backdrop, upgrading to new processes and equipment was undoubtedly a necessary choice for breaking through and achieving development. The company made a decisive decision, quickly conducted market research and technical evaluations, and successfully created an efficient processing assembly line through the introduction of a batch of double-needle sewing machines and fully automatic strap sewing machines, as well as adjustments and optimization of the production process, injecting new energy into bulk bag production.

Achievements of Equipment Upgrades

Just three or four months after the introduction of the new equipment, the benefits of automation began to show:

Due to the adoption of assembly-line sewing, the sewing process changed from single equipment completing the sewing of each component one by one to a division of labor between two pieces of equipment: the fully automatic strap sewing machine was responsible for batch sewing of the straps, while the double-needle sewing machine focused on the assembly of the bag body and bottom cover, and could complete double-line stitching in one go during the bottom folding and hemming process. The process became simpler, and production efficiency was significantly improved. After several months of adjustment, the monthly production capacity of the bulk bag sewing process increased by more than 60% year-on-year.

Automated equipment is simpler and more convenient to operate, requiring less skilled labor. Taking strap sewing as an example: traditional sewing machines require pre-setting dimensions, controlling the sewing angle, and effectively moving the product to be sewn along with the equipment to complete the sewing process. The new equipment, however, uses standard tracks and professional fixtures for fixing, and only requires placing the components to be sewn in the designated position to automatically complete the entire sewing process. This change not only effectively reduced the labor intensity of workers but also reduced the sewing cost per bulk bag by more than 6%.

In addition, the significant increase in production capacity meant a corresponding reduction in the proportion of products requiring outsourced processing, reducing the company's outsourcing and transportation costs, further lowering the company's overall expenses. In traditional manual sewing processes, variations in human operation can lead to fluctuations in product quality.  The introduction of automated equipment has brought about significant quality improvements: the equipment operates according to preset programs, ensuring the precision of each process step and avoiding problems such as uneven stitch spacing, loose threads, and dimensional deviations that can occur with manual operation. This results in greater product consistency, more uniform sewing tension, and stronger seams in the bulk bags, further improving product lifespan and yield.

Advantages of Equipment Upgrade:

Switching from traditional sewing equipment to the LongSew LS300-5030 CNC multi-functional automatic computer pattern sewing machine offers several advantages. This machine is equipped with a Dahao sixth-generation dedicated servo control system and high-performance servo motor drive, allowing for arbitrary setting of sewing patterns within the specified range with reliable response speed;

It features a motor-driven thread trimming device for more stable thread cutting;

The auxiliary work platform surface uses a hard chrome plating process, making it rust-proof and more wear-resistant, effectively avoiding contamination of white materials; the needle bar uses a black diamond plating process for better wear resistance;

The synchronous belt uses the Japanese Bando brand, offering low noise, long lifespan, and strong transmission performance; it uses imported high-quality solenoid valves to ensure precise movement every time and a longer service life;

The motor gear transmission uses an adjustable gap sealed gearbox design, ensuring that the noise generated by gear meshing is not transmitted externally and guaranteeing gear lubrication;

The new upper and lower shaft transmission design effectively reduces noise generated during upper and lower shaft transmission and ensures convenient disassembly and maintenance;

The innovative rotary hook lubrication design makes lubrication of the rotary hook and lower shaft front sleeve more convenient and controllable, allowing for adjustment of lubrication frequency through the system and providing visual lubrication effects;

Its design structure is rigorous and the transmission is reliable.  Various parameters such as pattern graphics, number of stitches, and stitch length can be set through the random programmer.  Pattern input, storage, modification, and retrieval are convenient, and pre-programmed patterns can be input through the USB interface for sewing processing.

LS300-5030 Feature & Functions:

Extra big rotary hook, 6 times big bobbin highly reduce bobbin changing times.

Max speed up to 1800 rpm, stitch length max 12.7mm, highly improve sewing speed.

Computerized control system, freely design new patterns. With high accurate servo motor drive system, making sure each time pattern sewing same.

Big working area, suitable for high tons FIBC bag loopsew, 500mm belt length, specially can order 550mm.

Auto trimmer can be used end of sewing, or cut thread in mid of one time sewing when some special pattern have two part sewing.

S.S. 304 table top cover for food and other high requirement FIBC bag producing.

80700 series is a heavy-duty, double-needle, four-thread chain stitch sewing machine specifically designed by LongSew Company for the production of bulk bags.  It features a larger sewing area, allowing for smooth and efficient sewing of bulk bags. The top and bottom feed mechanism easily handles sewing on inclines and corners. Its robust column-type frame design is particularly suitable for sewing the filling and discharge ports of bulk bags, and can simultaneously sew upper and lower leak-proof strips.

The machine features an electrically controlled presser foot lifting mechanism, making operation more flexible and convenient, and resulting in excellent sewing quality. The independently designed electrically controlled heating thread cutting device ensures that the thread cutting length fully meets bulk bag standards.

80700CD4H Feature & Functions:

Extra heavy duty capacity up to max 18mm

Max speed up to 1400 rpm; Needle distance 7.2mm; Stitch range from 6-12mm ( Standard setting 10mm)

Double needles 4 threads parallel chain stitch (401+401)

Top & bottom feeding

Top & bottom filler cord guides

With pneumatic foot lift system & pneumatic hot cutter system

Needle position fixed up system

Needle cooling system

220V Single phase 750W servo motor offer strong strength and saving energy.

New developed S.S. 304 table top cover and S.S.304 machine body shell for food and other high requirement FIBC bag producing.

Practical Considerations for Equipment Upgrades

From traditional single-person, single-machine production to efficient, specialized assembly lines, the practices of bag manufacturing plants represent not only an important attempt at equipment upgrading and transformation for companies, but also a key breakthrough in enhancing industry competitiveness and achieving cost reduction and efficiency improvement.

With the acceleration of intelligent transformation and digital upgrading in the manufacturing industry, traditional labor-intensive industries must actively embrace automation and intelligent transformation to overcome development bottlenecks and open up new avenues for growth. Even seemingly simple sewing processes can achieve a qualitative leap through technological upgrades!