Linyi, Shandong, China – September 18, 2026

1. Positive Correlation Between Gram Weight and Load-Bearing Capacity

Gram weight refers to the weight per square meter of the Woven Bag fabric, which intuitively reflects the material dosage and structural density of the bag. Under the same production standard and material conditions, Woven Bags with higher gram weight do have more excellent load-bearing performance, which is mainly reflected in the following two aspects:

Thicker Fabric and Higher Material Strength

Woven Bags with higher gram weight are equipped with thicker woven fabric. Thicker polymer materials have better tensile resistance and structural stability. When loading heavy goods, the thickened fabric is not easy to stretch, deform or crack under pressure, and can stably bear greater weight. Meanwhile, higher gram weight means more dense fiber distribution, which optimizes the overall structural firmness of the Woven Bag and effectively disperses the pressure generated by heavy objects, avoiding local stress damage.

Denser Warp and Weft Weaving Structure

High-gram-weight Woven Bags adopt a tighter warp and weft weaving process. The number of warp and weft threads per unit area is larger, and the interweaving nodes are more compact. This dense weaving structure greatly improves the tear resistance and tensile strength of the bag. Compared with low-gram-weight Woven Bags of the same size, high-gram-weight products can resist stronger external tension, effectively preventing breakage during loading, transportation and stacking, and significantly improving the overall load-bearing limit.

2. Key Factors That Affect the Load-Bearing Capacity of Woven Bags

Although gram weight is positively correlated with load-bearing capacity, many manufacturers have the problem of “high gram weight but low bearing performance” in actual production. This is because multiple core factors such as weaving process, raw material quality and structural design will directly determine the final load-bearing effect of Woven Bags.

Weaving Process Precision

The weaving process directly affects the structural uniformity and firmness of Woven Bags. Even for products with the same gram weight, different process standards will lead to a huge gap in load-bearing capacity. High-quality Woven Bags adopt precision weaving technologies such as double-layer weaving and edge reinforcement, which strengthen the weak parts of the bag body and comprehensively improve the overall strength.

In addition, the uniformity and compactness of weaving are crucial. Uneven weaving will lead to local thinness and weak stress resistance of the bag body, which is prone to cracking and damage under heavy load. The uniform and tight weaving process can realize balanced stress of the whole bag body and give full play to the material strength, so as to achieve more stable load-bearing performance.

Raw Material Quality

Raw material quality is the fundamental guarantee of Woven Bag load-bearing performance, which plays a decisive role. If the raw materials are of poor quality, even high-gram-weight Woven Bags cannot achieve ideal load-bearing effect. High-quality pure polypropylene (PP) raw materials have high fiber strength, good toughness and strong tensile resistance, and the finished Woven Bags are durable and not easy to damage.

On the contrary, inferior raw materials mixed with impurities and recycled materials have low fiber toughness and poor structural stability. Such Woven Bags are easy to aging, brittle and crack under pressure. Meanwhile, the aging resistance and corrosion resistance of raw materials also affect the long-term load-bearing capacity of Woven Bags. Bags with poor material resistance will gradually decline in strength after being used for a period of time, and their load-bearing performance will be greatly reduced.

Overall Structural Design

The structural design of the bag body is an important auxiliary factor to improve load-bearing capacity. Woven Bags with reinforced ribs, thickened bottom and edge reinforcement designs have significantly higher load-bearing limits than ordinary flat Woven Bags of the same gram weight. The reinforced structure optimizes the force-bearing mode of the bag body, disperses the bottom and side pressure generated by goods, and avoids local overloading and damage.

The bag mouth sealing design also cannot be ignored. A firm sealing structure can prevent the bag mouth from cracking and slipping during loading and handling. High-strength heat sealing and zipper sealing processes can improve the tightness and firmness of the bag mouth, ensuring that the Woven Bag maintains stable load-bearing performance in the whole use link.

Summary

To sum up, the gram weight of Woven Bags is an important indicator of load-bearing capacity, and higher gram weight usually brings stronger load-bearing performance, but it is not the sole determining factor. When selecting customized Woven Bags, enterprises and users should not only focus on gram weight, but also comprehensively investigate the weaving process level, raw material quality and product structural design.

Only by combining multiple advantages of high-quality materials, sophisticated technology and reasonable structure can we select woven bags with stable load-bearing, durable use and high cost performance, which meet the needs of industrial transportation, material storage and other scenarios.

About Us

Founded in 2018 and headquartered in Linyi, Shandong Province, Linyi Silk Road International Trade Co., Ltd. is an enterprise integrating the research and development, production, sales and service of woven bags, jumbo bags and other packaging products.

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Company Name: Linyi Silk Road International Trade Co., Ltd.
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Country: China
Website: https://www.slwovenbag.com/