Electronic and electrical plastic enclosures
Electronic and electrical plastic enclosures
Application: Electrical plastic parts
Process: Injection molding
Service: Structural optimization, pre-tooling review, pilot run
Wenzhou Yanheng Electric Co., Ltd.
Custom Plastic Injection Molding, Mold Making and Product Design in China
Injection molding · Mold making · Product design · Mold flow analysis · Structural simulation
We support product design, 3D printed prototyping, mold flow analysis, structural simulation, mold development and injection molding for low-volume, pilot-run, custom plastic parts, mainly under 250g per part.
Plastic Injection MoldingMold MakingProduct Design3D Printed Prototyping
2025Founded in Wenzhou, Zhejiang
6Services from design to molding
ReviewDrawings and samples evaluated first
One-stopReduce coordination cost
Company Profile
Manufacturing support from design review to mold and injection molding.
Wenzhou Yanheng Electric Co., Ltd. is located in Liushi, Yueqing, Wenzhou, Zhejiang, China.
We provide plastic injection molding, injection mold development, product structural design, mold flow analysis, structural simulation, and 3D printed prototyping for electrical and industrial plastic parts.
Customers may send drawings, 3D files, samples, photos, or product ideas for initial evaluation. Current injection molding equipment is mainly suitable for plastic parts under 250g; larger parts require manual review based on structure, size, and process.
Contact UsServices
Engineering services for custom plastic parts and tooling projects.
01
Plastic Injection Molding
Custom plastic part processing, pilot runs, production evaluation, and plastic structural part manufacturing, mainly for parts under 250g.
02
Mold Making
Injection mold development based on drawings, samples, photos, or design requirements with structure and cost review.
03
Product Design
Support from product idea, structure, manufacturability, cost control, assembly, and use scenario review.
04
3D Printed Prototyping
Fast verification of appearance, structure, and assembly before mold making.
05
Mold Flow Analysis
Pre-tooling review of filling, shrinkage, deformation, air traps, weld lines, gates, cooling, and structure.
06
Structural Simulation
Review part strength, deformation, stress concentration, snap-fit strength, and assembly risks.
Suitable Product Types
Suitable for low-volume, pilot-run, and custom plastic part projects.
Current injection molding equipment is mainly suitable for plastic parts under 250g; larger products can be reviewed manually according to structure, dimensions and process.
Plastic structural partsElectronic and electrical enclosuresConnector plastic partsTerminal block housingsElectrical accessoriesSmall functional plastic partsLow-volume custom partsPilot production and prototypes
Why Work With Us
Practical support for small and custom projects.
Low-volume communicationSuitable for pilot runs, sample verification, and customized plastic parts.
Design-to-molding supportProduct design, mold development, and injection molding can be considered together.
Evaluation from files or samplesWe can start from drawings, 3D files, samples, photos, or product ideas.
Simulation-assisted reviewMold flow analysis and structural simulation can reduce tooling risk before mold making.
Engineering First
Asking a few more engineering questions before tooling is cheaper than repeated changes after tooling.
Is wall thickness balanced?Reduce shrinkage, deformation and short-shot risks.
Is assembly reliable?Review snap-fits, screw bosses, locating ribs and load paths early.
Is the mold maintainable?Check wear areas, venting, cooling and production convenience.
Are flow risks clear?Use mold flow review to judge filling, weld lines, air traps and warpage trends.
Workshop & Engineering
Make each step visible from review and prototyping to inspection.
After receiving drawings, samples or ideas, we review structure, prototypes, mold and production stability so the project can move forward clearly.
Cases
Cases and Capability Display
From drawing review, structure optimization, mold flow analysis and mold development to injection molding, we help customers reduce tooling and production risks.
Electronic and electrical plastic enclosures
Button and terminal plastic parts
Button and terminal plastic parts
Application: Electrical control and panel accessories
Process: Mold development
Service: Parting review, trial mold optimization, dimension tracking
Industrial structural parts
Industrial structural parts
Application: Industrial equipment and mounting structures
Process: 3D printed prototyping
Service: Assembly validation, structural improvement, pre-tooling confirmation
Engineering Insights
Engineering Insights
Practical methods for evaluating plastic part structure, tooling, and molding risks before production.
Engineering InsightsInjection Sink Marks: Check Structure Before Process
Sink marks are often related to local thick sections, ribs, bosses, packing transfer, and uneven cooling rather than one process setting.
Engineering InsightsMold Venting: What to Vent and Where
Venting removes cavity air and material gases. Its location must follow filling ends, flow convergence, and sealing conditions.
Engineering InsightsParting and Demolding Direction: Start With How the Part Leaves
The primary demolding direction controls parting, sliders, lifters, ejection, appearance marks, cost, and maintenance.
Contact Us
Have drawings or samples? Send them to us for evaluation.
Tel: +86 17767360069 Email: [email protected]
Address: No. 40 Dongshuibin Road, Huajia Village, Liushi Town, Yueqing, Wenzhou, Zhejiang, China