蛋盒模具使用了哪些材料?
In pulp egg tray production, the egg carton mold is a core piece of equipment. It directly affects molding quality, production efficiency, and cost. Different mold materials have their own characteristics in thermal conductivity, wear resistance, processing cost, and ease of maintenance. This article will systematically introduce the materials of egg carton molds and the factors affecting material selection.

蛋盒模具使用了哪些材料?
The most common materials for egg carton molds are aluminum alloy, stainless steel, and plastic. Other composite or metal molds are less common, so they will not be discussed here. Below is a brief introduction to these three common materials.
Aluminum Alloy 模具s
Aluminum alloy is currently the most common and widely used material for egg carton molds. Aluminum is lightweight, has good thermal conductivity, and is easy to process and shape. It is also much cheaper than stainless steel. For this reason, many customers choose aluminum alloy. Shuliy also offers semi-aluminum, semi-stainless steel molds or molds with customized material in specific areas to ensure the best cost-performance ratio.

Key Advantages of Aluminum Alloy Egg Tray Molds:
- Good heat conduction: Helps water drain quickly, improving molding efficiency.
- Easy processing: Suitable for CNC or wire-cut precision machining.
- High cost-performance: Good balance between durability and manufacturing cost.
- Lightweight: Easy to install and replace.
Stainless Steel Molds
The main feature of stainless steel molds is strong corrosion resistance and high strength, making them suitable for humid environments and long-term continuous production. Compared to aluminum alloy, stainless steel is better for long-term, high-intensity production tasks, but it is more expensive.

Key Advantages of Stainless Steel Molds:
- Corrosion resistant: Does not rust easily when in contact with water and pulp for long periods.
- High strength: Strong resistance to deformation and wear.
- Long lifespan: Durable overall, with lower maintenance costs.
Disadvantages:
- Higher cost and more difficult to process than aluminum alloy.
Plastic Molds
Egg carton molds can also be made of plastic. Plastic molds have a short processing cycle and relatively low cost, but their wear resistance and molding precision are weaker in long-term production.

Key Advantages of Plastic Molds:
- Low initial investment
- Lightweight and easy to manufacture
- High replacement frequency is affordable
Disadvantages:
- Poor wear resistance
- Prone to deformation and short lifespan
Comparison Table of the Three Mold Materials
| 材料 | 成本 | Thermal Conductivity | Corrosion Resistance | Processing Difficulty | Suitable Use |
|---|---|---|---|---|---|
| Aluminum Alloy | 中等 | Good | Good | Easy | Medium to high production, mainstream use |
| Stainless Steel | 高 | 中等 | Excellent | Moderate to difficult | High humidity, heavy-duty production |
| 塑料 | 低 | 差 | 中等 | Easy | Trial production / small batches |
How to Choose the Right Egg Carton Mold Material?
When selecting an egg tray mold material, consider production intensity, working environment, and long-term costs.
- Aluminum alloy molds: Balanced performance and high cost-effectiveness, suitable for most commercial egg tray production.
- Stainless steel molds: Corrosion-resistant and long-lasting, ideal for high-humidity or continuous production.
- Plastic molds: Low investment but limited durability, suitable for trial runs or small-scale production.
For a balance between cost and durability, semi-aluminum/semi-stainless steel or customized local material options can also be chosen to achieve the best overall cost-performance ratio.



How to Customize an Egg Tray Mold?
- Determine size: Design the egg tray based on the number of egg positions and overall tray dimensions.
- Choose material: Aluminum alloy, stainless steel, or a combination.
- Design stacking method: Single layer or stackable structure.
- Customize appearance: Reinforced edges, logo embossing, or special features.
- Provide specifications or samples: Helps with mold design and processing.
- Confirm design plan: Supplier usually provides 3D renderings or drawings; confirm before production.
- Processing and testing: After mold production, test samples to ensure accurate dimensions and molding efficiency.


Shuliy Pulp Egg Tray Mold Customization Service
Shuliy offers professional egg tray mold customization, allowing flexible adjustments to tray size, material, and style according to customer needs. Whether it’s a standard 30-egg tray or smaller retail packaging, we provide tailored designs.
In addition to regular egg trays, we also support custom molds for shoe trays, slipper trays, fruit trays, seedling trays, and more. Customers can choose aluminum alloy, stainless steel, or a combination to ensure optimal cost-performance while meeting production efficiency and product quality requirements.
Shuliy also offers appearance customization, such as embossed brand logos, raised edges, or special structural designs, catering to diverse market and brand needs.



Egg Tray Finished Products Display





