Plastic Crate Mold Acceptance Checklist: SINOMOULD Injection Mold Acceptance

2025-11-05

For customers in the plastic molding industry, it is essential to partner with a mold manufacturer that guarantees both quality and long-term operational efficiency. SINOMOULD specializes in designing and manufacturing various types of high-performance plastic crate molds. Our systematic mold acceptance process ensures that every mold delivers durability, stability, and consistency. Here are the key inspection points we follow:

 


1. Smooth Mold Operation

We thoroughly verify that all mold movementsincluding opening, closing, slider actions, and ejectionoperate smoothly and accurately without hesitation or misalignment.


2. Balanced Filling for Multi-Gate Molds

For molds with multiple gates, we perform proportional injection tests to confirm uniform melt flow from all gates. This ensures balanced filling and stable part formation.


3. Robust and Practical Process Window

We optimize molding parameters to provide a wide and stable process window. This avoids extreme settings and ensures the mold is easy to control and suitable for high-volume production at the customer's facility.


4. Stability and Performance Validation

Each mold undergoes continuous production runs of at least 30 minutes to validate cycle consistency and operational stability. During this test, we inspect the crate products for:  

- No flash on parting lines or around perforations  

- No air traps (e.g., in handle areas or near the bottom gate) that could weaken the structure  

- Complete filling with part weight within specified tolerances  

- Successful stacking and static load tests—ensuring stable stacking, no tilting, and minimal deformation under sustained load (e.g., 24-hour test)

 

Choose SINOMOULD for reliable, high-efficiency plastic crate molds built to perform in real production environments. Welcome your contact with whatsapp: +86 13757677056
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