Wholesale Three Piece Jar Set - 155g Storage Containers Manufacturers, Factories

This product is mainly used to contain canned sardine. The product is made of materials that meet the national food safety standards and coatings that match the characteristics of sardine cans. After canning and sterilization, the product meets commercial aseptic requirements and has a shelf life of over three years.

Product Description

Advantages of a Three Piece Can

1. High Structural Strength

The can body can be greatly enhanced in rigidity by rolling reinforcement ribs (circular/corrugated ribs), which can withstand pressure changes during transportation stacking and high-temperature sterilization, and are not easily dented or swollen. The three piece sealing structure has excellent sealing performance and can effectively block oxygen, light, and moisture, extending the shelf life of the contents.

2. Flexible Material Selection

Different metal materials such as tinplate, chrome plated iron, aluminum, etc. can be used to match more cost-effective solutions according to product needs. The can body plate can be designed with thinning, combined with reinforcing ribs to ensure strength, effectively saving raw material costs.

3. Mature Technology & Efficiency

The standardization level of processes such as welding and sealing of the tank body is high, suitable for large-scale automated production, and the production capacity is stable. Strong compatibility with equipment and raw materials, low debugging costs when changing specifications and products.

4. Wide Adaptability

It is resistant to high temperature and pressure, and can be used for high-temperature sterilization food (such as canned food, Babao Congee), as well as for containing carbonated drinks, chemical liquids, etc. The shape and size of the can body have high design freedom.

5. Packaging & Environment

The flat area of the can body is large, suitable for printing exquisite patterns and brand information, with good visual display effect. Metal materials can be 100% recycled and reused, in line with environmental trends.

Drawbacks of a Three Piece Can

1. Complex Process

It is assembled from three parts and requires more processes such as cutting, welding, and sealing. The production line is longer, and the unit time production capacity is usually not as good as that of two piece cans.

2. Weld Seam Limitations

A longitudinal weld seam can affect the aesthetics and printing designs. Corrosion resistance at the weld is slightly lower, requiring additional coating for acidic contents.

3. Higher Weight & Cost

Compared to two-piece cans, the utilization rate of the sheet is slightly lower, and the sealing structure requires more material overlap, resulting in a slightly higher overall weight.

4. Shape Design Freedom

The can body is mainly cylindrical, making it difficult to achieve complex irregular structures compared to the stretching molding of two-piece cans.

5. Sterilization Risks

Improper process control at the sealing point can lead to deterioration. Thermal expansion differences between the body and weld during sterilization may cause stress.

Frequently Asked Questions (FAQ)

What products are most suitable for three-piece cans?
Three-piece cans are ideal for foods requiring high-temperature sterilization, such as canned vegetables, meats, and porridge, as well as chemical liquids and powdered products.
Are three-piece cans environmentally friendly?
Yes, they are made from metal materials like tinplate or aluminum, which are 100% recyclable and have high recovery value compared to plastic.
How do reinforcement ribs help the can?
The circular or corrugated ribs significantly increase the rigidity of the can body, allowing it to withstand high internal and external pressure without deforming.
What materials are typically used for three-piece cans?
Common materials include tinplate, chrome-plated iron, and aluminum, selected based on the specific cost and corrosion-resistance requirements of the product.
Does the weld seam on the can affect food safety?
The weld seam is highly standardized and typically protected with an internal coating to prevent corrosion and ensure the safety and longevity of the contents.
Can I customize the size of a three-piece can?
Yes, three-piece cans offer high design freedom regarding height and diameter, making them adaptable to various volume requirements.

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