How do we – a Chinese manufacturer, and  a mold maker – create custom molds for your product design .

As experienced injection mold manufacturers in China, we follow a process to transform your product ideas and designs into high-quality production molds. Here’s how we partner with product designers to create high quality precision injection molds:

Step 1 The part analysis and design for manufcaturing.

Our custom injection mold design process begins with thorough analysis of your product specifications. We require:

• 3D CAD files (STP, STEP, IGS or Parasolid formats accepted)
• Material specifications for injection molding
• Production volume requirements and your timeline for delivery the finished parts.

Design Feasibility Assessment

Our experienced mold designers evaluate your part using industry-standard and optimised Design for Manufacturing (DFM) guidelines to ensure optimal moldability:

for example; Wall Thickness Optimization: We analyze wall thickness uniformity to prevent warping, sink marks, and ensure proper material flow during injection molding.

Surface Finish Requirements: Our team reviews surface finish specifications to determine appropriate mold steel and texturing needs.

Tolerance Analysis: We verify dimensional tolerances are achievable with injection molding processes.

Mold Complexity Determination

Your part geometry directly influences injection mold complexity and manufacturing approach:

Simple Two-Plate Molds: Ideal for parts without undercuts – featuring straightforward open-close operation for cost-effective production.

Complex Molds with Side Actions: Parts with external undercuts require sophisticated mold mechanisms including:

• Core pullers for internal undercuts
• Sliders for external side features
• Split cavities for complex geometries
• Lifters for angled undercuts

Step 2 Mold design.

As we mentioned in step 1 the produce or part is the starting point for mold design: Most important is the structure of the mold in general; our engineers will in this step ,determine the parting lines, number of cavities, the gate design, the ejector pins etc..

Step 3: Purchasing mold standard parts.

Depending on your budget we can buy standard branded mold bases just like LKM or cheaper Chinese other injection molds china bases. Same story for ejector pins,

We would not recommend to save costs on mold steel.

Step 4: Mold manufacturing

In this fase the real manufacturing starts. Custom forms will be made by CNC machining and EDM.

Each step will be controlled by a QC engineer.

Step 5: Mold assembly.

Custom made parts such as the core and cavity will be fitted in the mold base and standard parts such as bolts pins etc. Now your mold is ready for processing on the  injection mold machine!