Custom Injection Mold Manufacturing in China

Custom Tooling · DFM · Mold Trials · Production Support

YIOT supports international buyers with injection mold design, manufacturing, trials and production coordination through a Dongguan manufacturing base. Yiot Technology Co., Ltd. provides the global sales and engineering interface. Dongguan Aoyuan Plastic Products Co., Ltd. is the manufacturing entity operating the approximately 12,000 m² facility in Dongguan, China.

Mold manufacturing, CNC machining, EDM, wire-cut EDM, DFM engineering, dimensional inspection and injection molding are coordinated within the same manufacturing operation. This gives buyers one technical path from design review through tooling and production.

12,000 m²

Approximate Dongguan manufacturing-facility area

50+ Molds/Month

Reported capacity under suitable project and scheduling conditions

31 Units

Aggregate machining and dimensional-inspection equipment

49 Machines

Automated 90T–1,200T injection molding presses for production support

CNC and EDM equipment in the Dongguan injection mold manufacturing workshop
In-house CNC, EDM and mold-component manufacturing
CMM dimensional inspection for a custom injection mold
Dimensional inspection for mold components and trial verification
Automated injection molding workshop used for mold trials and production
Automated molding capacity for mold trials and production

Injection Mold Manufacturing Capabilities

Each project is reviewed according to part geometry, mold size, cavity count, expected resin, production volume, surface requirements, critical dimensions and the planned molding process. Capability and acceptance must be confirmed against the actual project files.

DFM and Mold Design

Review of part geometry, wall thickness, draft, parting lines, gates, ejection, side actions, cavity assumptions and inspection needs before mold steel is cut.

CNC, EDM and Wire-Cut EDM

In-house machining and electrical-discharge processes support mold components whose geometry, material and project requirements are suitable for the selected process.

Mold Fitting, Assembly and Trial

Tooling, molding and inspection personnel can review filling, ejection, appearance and dimensional results together during the trial and correction cycle.

Production Molding Support

Forty-nine automated injection molding machines cover a verified clamping-force range from 90T to 1,200T, subject to mold and part suitability.

DFM Before Mold Design Is Finalized

The lowest-risk time to resolve a molding problem is before mold steel is cut. A project-specific review turns the available CAD, drawings, material requirements and production assumptions into technical questions that can be resolved before tooling decisions are locked.

Review areaQuestions to resolveProject impact
Part geometryWall thickness, ribs, bosses, draft, undercuts and local massFilling, cooling, ejection and visible defects
Mold conceptParting line, gates, runners, side actions, ejection and cavity countTool complexity, maintenance, cycle and appearance
Material and surfaceResin grade, additives, texture, polish and cosmetic zonesShrinkage assumptions, processing and finish
Quality planCritical dimensions, measurement method, sampling and validationInspection scope and acceptance evidence

Engineering boundary: a DFM review identifies known risks and open questions. It does not replace the buyer’s product validation or guarantee that every project risk can be eliminated before trial.

From Mold RFQ to Trial and Production

1. Review Project Inputs

Confirm part files, resin, estimated volume, critical dimensions, surface requirements, reports and target schedule.

2. Resolve DFM Questions

Document the mold concept, cavity assumptions, gating, ejection, side actions, steel and open technical decisions.

3. Manufacture Components

Coordinate CNC, EDM, wire-cut EDM and inspection according to the approved tooling plan.

4. Assemble and Trial

Evaluate filling, cooling, release, appearance, dimensions and the required sample package.

5. Correct and Approve

Complete agreed corrections and compare the next results with the approved drawing and acceptance plan.

6. Produce or Transfer

Release the mold for in-house production or follow the mold-transfer terms defined in the commercial agreement.

Machining and Inspection Boundaries

CNC mold-component machining accuracy can reach up to ±0.003 mm for applicable features and project requirements. This figure must not be treated as a blanket tolerance for an assembled mold, a molded plastic part or every feature in a project.

Verified Equipment Figures

Three CMM systems have a verified equipment-accuracy figure of ±0.0005 mm. Three vision-inspection systems have a verified equipment-accuracy figure of ±0.001 mm. Six wire-cut EDM units have a verified equipment-accuracy figure of ±0.002 mm.

Project Acceptance

Equipment figures describe named systems. Final mold-component and molded-part tolerances depend on geometry, material, process, measurement method and the approved drawing.

Capacity, Lead Time and Quality Management

The manufacturing base has reported capacity to produce more than 50 molds per month. Actual scheduling depends on mold size, complexity, steel, components, surface treatment, revision cycles and current capacity. A 15–30 day mold schedule may be achievable for appropriate projects; the confirmed schedule is the one stated after technical review.

The Dongguan manufacturing base operates under an ISO 9001:2015 quality management system. Project controls may include incoming-component checks, in-process inspection, mold-component measurement, trial-part measurement and final review against agreed requirements.

Claims boundary: this page does not claim IATF 16949, ISO 13485, ISO 14001 or cleanroom capability. Where required, 100% inspection is a project-specific control for defined units or characteristics—not a universal zero-defect promise.

What to Include in a Mold RFQ

  • 3D part data and a dimensioned 2D drawing
  • Intended resin, grade and color requirements
  • Estimated annual volume and order quantities
  • Cavity target or permission to recommend it
  • Texture, polish and cosmetic-zone requirements
  • Critical dimensions and measurement methods
  • Insert, overmolding or secondary-process needs
  • Mold standard, component or transfer requirements
  • Sample quantity, reports and approval process
  • Target dates and shipping destination

For a sufficiently complete RFQ, YIOT can target a detailed custom quotation within six hours. Missing drawings, unresolved material requirements or unusually complex tooling can extend the review time.

Injection Mold Manufacturing FAQ

Can YIOT manufacture the mold and run production molding?

Yes. The Dongguan manufacturing base combines in-house mold manufacturing with automated injection molding on 49 machines from 90T to 1,200T, subject to project suitability.

What mold-component machining accuracy is available?

CNC machining can reach up to ±0.003 mm for applicable mold-component features and project requirements. Achievable results must be evaluated by feature, material, process and measurement method.

Does equipment accuracy equal final part tolerance?

No. CMM, vision-system and wire-cut EDM figures describe named equipment. Final mold-component and molded-part tolerances depend on the complete manufacturing process and the approved drawing.

How long does an injection mold take to build?

Suitable projects may fall within a 15–30 day range, but the confirmed schedule depends on mold complexity, steel, components, surface requirements and revision cycles.

Can YIOT provide a quotation within six hours?

YIOT can target a detailed custom quotation within six hours when the RFQ contains sufficient files, material, volume and project requirements. Incomplete or complex requests may need clarification first.

Request a Custom Mold Review

Send the part files, expected resin, annual volume, surface requirements, critical dimensions and target schedule for a tooling-scope and quotation review.

Submit Project Information