Plastic Injection Mold Making
We provide custom plastic injection mold making services for prototype molds and production molds. Our mold making process covers drawing review, DFM evaluation, mold structure planning, tooling manufacturing, mold trial, modification, and preparation for injection molding production.
Service Overview
Plastic Injection Mold Making
Yinuomold provides custom plastic injection mold making services for B2B customers who need plastic part development, mold tooling, and production preparation.
Our mold making service is suitable for custom plastic parts used in consumer electronics, home appliances, industrial equipment, automotive-related parts, and other plastic component projects.
Our Mold Making Scope
Our plastic injection mold making service may include:
– Drawing and 3D file review
– DFM evaluation
– Mold structure planning
– Prototype mold making
– Production mold making
– Mold trial
– Sample inspection
– Mold modification
– Preparation for injection molding production
Mold Types
We can support different mold requirements depending on the project stage and production quantity.
Common mold types may include:
– Prototype molds
– Production molds
– Single-cavity molds
– Multi-cavity molds
– Insert molds
– Overmolding molds
Project Evaluation
Before mold making, we usually review the part structure, plastic material, wall thickness, draft angle, tolerance requirements, surface finish, gate position, ejection method, and estimated production quantity.
This evaluation helps reduce mold risks and improve production stability before mass production.
Common Plastic Materials
The final plastic material should be selected based on product function, appearance, strength, temperature resistance, flexibility, cost, and application environment.
Common materials may include:
– ABS
– PC
– POM
– Nylon
– PP
– PE
– PMMA
– TPU / TPE
Quality Control
For mold making projects, we focus on tooling accuracy, sample verification, mold trial results, and modification confirmation. The process may include drawing review, DFM evaluation, mold structure checking, trial sample inspection, dimension checking, and final mold confirmation.
From Tooling to Production
After mold confirmation, the project can move into injection molding production. This helps customers manage the full process from part development and mold making to sample approval and mass production.

Surface Treatments
Gate Location Optimization
Gate location can be evaluated according to part structure, appearance requirements, flow balance, and production stability.
Parting Line Optimization
Parting line optimization helps reduce visible mold lines and improve the appearance and assembly quality of molded parts.
Mold Texture
Mold texture can be applied to create matte, grain, or special surface effects on plastic parts.
Mold Polishing
Mold polishing is used to improve the surface quality of molded plastic parts and meet appearance or functional requirements.
EDM Surface Finish
EDM surface finish may be used for mold areas that require specific cavity shapes, details, or controlled surface effects.
Quality Control
Drawing Review
The part drawing or 3D file is reviewed before tooling to check structure, dimensions, material requirements, and mold feasibility.
DFM Evaluation
DFM evaluation is used to identify potential mold making or injection molding issues before tooling starts.
Mold Structure Check
The mold structure is checked according to part geometry, gate design, cooling layout, ejection method, and production requirements.
Mold Trial Inspection
Trial samples are checked after mold testing to evaluate dimensions, appearance, part structure, and molding performance.
Sample Dimension Check
Key dimensions of trial samples are checked according to drawings or agreed project requirements.
Modification Confirmation
Mold modifications are confirmed based on sample feedback, dimensional results, appearance issues, or production requirements.
Final Mold Confirmation
The mold is confirmed after trial, modification, and sample approval before moving to production or shipment.
Related Projects
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Injection Molded Plastic Functional Part Project
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