
Plastic Injection Molding
Custom plastic molded parts for automotive, medical, electronics, consumer products and industrial components.
- Molding process review
- Material and structure support
- Sampling to mass production

DongXin provides plastic injection molds, plastic molding, liquid and solid silicone molding, OEM / ODM development, industrial design and CNC machining support for global customers.
What We Do

Custom plastic molded parts for automotive, medical, electronics, consumer products and industrial components.

Precision plastic injection molds built around DFM, tooling feasibility, trial molding and production stability.
Liquid silicone mold solutions and molded silicone parts support for custom product programs.
Compression mold and silicone part manufacturing support for solid silicone product requirements.

From drawings, samples or early ideas to product review, prototyping, mold making and manufacturing.

Precision machining support for mold manufacturing, product development and custom component programs.

Project Inputs
DongXin can evaluate complete technical packages or early-stage product ideas. The more project details you provide, the faster our team can check feasibility and prepare suggestions.
Input
CAD files, 2D drawings, STEP / STL files or dimensioned sketches for structure review.
Input
Existing parts or reference samples help us check size, structure and processing details.
Input
Early concepts, hand sketches or reference photos are enough for an initial feasibility check.
Input
Share preferred plastic, silicone, hardness, certification or application environment.
Input
Estimated order volume helps us recommend tooling, sampling and production options.
Input
Surface texture, color, assembly fit and tolerance notes make the review more accurate.

OEM / ODM Workflow
The engineering team reviews design risks such as structural defects, unreasonable draft angles and difficult-to-manufacture details before production.
Workflow focus
Each stage has a clear output before the next step starts, helping teams move from review to tooling, sampling and mass production with fewer back-and-forth changes.
Step 01
Drawings, samples, quantities and finish requirements are checked first.
Step 02
Engineers review draft angles, wall thickness, parting lines and molding risks.
Step 03
Cost, lead time, tooling plan and production route are aligned before kickoff.
Step 04
Tooling design moves into CNC, EDM, fitting and mold assembly.
Step 05
T0/T1 samples are tested, measured and refined until approved.
Step 06
Approved process parameters are used for stable production and shipment.
Start a Custom Project
DongXin can review manufacturability, mold requirements, production process and delivery planning for your plastic or silicone parts.