How can cardboard boxes improve their load-bearing capacity?

1、 Choose appropriate materials

1. Corrugated cardboard:

Corrugated cardboard is the main material for cardboard boxes, with a high load-bearing capacity. When choosing corrugated cardboard, different specifications and layers of cardboard can be selected according to the required load-bearing capacity. Generally speaking, corrugated cardboard with more layers and larger specifications has higher load-bearing capacity.

For example, five layer corrugated cardboard (composed of face paper, inner paper, core paper, and two layers of corrugated paper bonded together) has a higher load-bearing capacity than three-layer corrugated cardboard.

2. Other materials:

In addition to corrugated cardboard, high-strength materials such as kraft paper and white cardboard can also be considered for making cardboard boxes. These materials also have high tensile and compressive strength, and can withstand significant pressure and weight.

2、 Optimize structural design

1. Double sided reinforcement of double-layer corrugated cardboard:

For cardboard boxes that need to bear a large weight, a double layered corrugated cardboard structure with double-sided reinforcement can be used. This structure can effectively disperse weight and improve the compressive and load-bearing capacity of the cardboard box.

2. Bottom thickening and installation of supports:

The bottom of the cardboard box is a critical load-bearing part, and its load-bearing capacity can be enhanced by thickening the bottom cardboard or installing supports. For example, adding a reinforcing plate at the bottom of the cardboard box or using a cross support structure to distribute weight.

3. Side pressure lines and reinforcement bars:

For cardboard boxes that need to withstand significant lateral forces, side pressure lines can be added to enhance their lateral compressive strength. At the same time, reinforcing ribs can be added inside the cardboard box to improve overall strength.

3、 Strengthen process processing

1. Adhesive reinforcement:

Strengthen the use of glue when making cardboard boxes, apply glue to the surface of corrugated cardboard and the interface and bottom of the cardboard box for reinforcement. This can significantly improve the strength and toughness of the cardboard box, enhancing its load-bearing capacity.

2. Internal filling material:

Filling materials such as bubble film and foam board are added inside the carton to enhance the cushioning performance of the carton. These filling materials can absorb impact energy and reduce the impact of vibration on the cardboard box, thereby improving the load-bearing capacity and protective effect of the cardboard box.

4、 Other precautions

1. Regular inspection and maintenance:

Regular inspection and maintenance of cardboard boxes can promptly identify and address potential issues such as cracks, damages, etc. to prevent further deterioration and impact on load-bearing capacity.

2. Reasonable loading:

When loading items, avoid excessive stacking and concentrated loading to prevent damage to the cardboard boxes due to excessive pressure. At the same time, attention should be paid to the loading sequence and method to ensure the stability of the items during transportation.

3. Select products from qualified manufacturers:

Choosing qualified cardboard products produced by legitimate manufacturers can ensure their reliable quality and meet relevant standard requirements, thereby improving their load-bearing capacity and usability.