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Precision Injection Mold Manufacturing Services

Manufacture your injection molds directly in our ISO 9001:2015 certified factory. All processes — DFM analysis, mold design, CNC machining, CMM inspection, assembly and mold trial — are completed under one roof.

ISO 9001
Certified Mold Making System

CMM · Optical · Hardness testing in-house

20 CNC Centers
650 / 850 / 1060 / 1165 Series

In-house precision mold machining

20+ Years
Mold Making Since 2006

Side actions · Lifters · Unscrewing molds

24h Response
DFM Analysis & Mold Quote

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Precision injection mold close-up manufactured by Hua Zi Industrial
Capabilities

Injection Mold Manufacturing Technical Parameters

Hua Zi builds production injection molds in-house, from simple two-plate tools to complex molds with moving mechanisms for demanding plastic parts.

Mold types2-plate, 3-plate, side-action, lifter, four-side slide, unscrewing
CNC machining centers20 units
CNC model range650 / 850 / 1060 / 1165 series
Precision inspectionIn-house CMM, image measuring instrument, calipers, gauges
Mold trialOn in-house injection machines, 90T–800T
Quality systemISO 9001:2015
Complex mechanismsInternal cutting, spring shells, angled lifters, four-side slides, thread unscrewing
Mold Design

From Mold Design to Finished Tool

Every mold project starts with DFM review and full 3D mold design before steel is cut. This reduces tooling cost risk, shortens lead time and avoids late design changes.

  • Part manufacturability review with clear feedback
  • Runner, gate, cooling and ejection system design
  • Complex mold structure planning
  • Mold design optimized for maintenance and tool life

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CNC machining center workshop used for injection mold manufacturing
Mold Materials

Mold Steel & Material Selection

Correct mold material selection balances tool life, part material, production volume and budget.

Pre-Hardened Steel

Suitable for general production molds with moderate volume and cost-sensitive projects.

Hardened Tool Steel

Used for high-volume inserts and wear-resistant molding areas with demanding durability.

Application-Based Selection

Stainless or corrosion-resistant grades can be considered for aggressive materials. Our engineers confirm the best grade per project.

Complex Tooling

Complex Mold Structures We Can Build

Many plastic products need more than a simple two-plate mold. Our tooling team builds molds with advanced mechanisms for demanding part geometry.

Side Actions

For external undercuts and side holes that cannot be formed by straight ejection.

Angled Lifters

For internal undercuts and bosses requiring movement during ejection.

Four-Side Slides

Multi-direction parting solutions for complex enclosure parts.

Unscrewing Molds

Automatic thread unscrewing for caps, connectors and threaded components.

Production Flow

How We Manufacture Your Injection Mold

A controlled production flow protects mold quality, schedule and final part repeatability.

1

DFM & 3D Mold Design

Review part design, plan mold structure, gating, cooling and ejection before cutting steel.

2

CNC Machining

Machine mold bases, inserts and components on 20 in-house CNC machining centers.

3

Fitting & Assembly

Bench fitting, assembly, polishing and mechanism adjustment by experienced toolmakers.

4

Inspection & Mold Trial

Verify dimensions with CMM, trial on injection machines and approve samples with reports.

Quality Inspection

Mold Quality Inspection & Sampling

Every mold is inspected with precision measuring equipment before trial. Molds are then trialed on our own injection molding machines to verify filling, dimensions, appearance and ejection.

Coordinate measuring machineIn-house CMM
Optical measurementImage measuring instrument
Surface & colorColorimeter / standard light source
Mold trialOn 90T–800T injection machines
Coordinate measuring machine used for injection mold quality inspection
Cost & Lead Time

Injection Mold Cost Factors & Mold Lead Time

Learn what determines mold investment and how tooling schedules are confirmed before production.

What Affects Injection Mold Cost

  • Part size, geometry and undercut complexity
  • Mold structure: side actions, lifters, unscrewing mechanisms
  • Number of cavities and expected production volume
  • Steel grade and mold component selection
  • Tolerance, surface finish and mold life requirements
  • Cooling design, hot runner or special gating systems

Mold Manufacturing Lead Time

  • DFM review and final quotation confirmation
  • 3D mold design and customer design approval
  • Steel ordering and CNC machining
  • Fitting, assembly, polishing and inspection
  • Mold trial, sample inspection and delivery

Mold lead time is confirmed after DFM review. Size, complexity, steel availability and current shop capacity all affect the schedule.

RFQ tip: include the 3D part model, 2D drawing with tolerances, material, annual quantity and surface finish class. These details allow our mold engineers to give a more precise tooling cost and schedule.
FAQ

Injection Mold Manufacturing FAQs

Common questions from buyers planning injection mold projects with a China mold maker.

What kind of injection molds do you manufacture?

We manufacture production injection molds for plastic parts. Our tooling capability includes complex structures such as side actions, angled lifters, four-side slides and unscrewing mechanisms for demanding part geometry.

What information do you need for a mold quotation?

Send the part 3D model (STEP/IGES) and 2D drawing with material, tolerances, annual quantity and surface finish requirements. If a physical sample is available, it also helps our engineers understand the part.

Can you review and improve my part design before tooling?

Yes. Every mold project starts with a DFM review. We check wall thickness, draft angles, undercuts, gating, ejection and tolerance risks, then deliver modification suggestions before cutting steel.

How do you control mold manufacturing quality?

Mold components and assembled molds are inspected with CMM, image measuring instruments, calipers and standard gauges. This ensures cavity dimensions, inserts, parting surfaces and assembly accuracy meet the design.

Do you trial molds before delivery?

Yes. Molds are trialed on our own injection molding machines. We verify filling, dimensions, appearance and ejection, then make adjustments until approved samples are produced.

How long does injection mold manufacturing take?

Mold lead time depends on mold size, complexity, steel options and current workload. After DFM review, we give a confirmed tooling schedule before the project starts.

What factors affect injection mold cost?

Injection mold cost is mainly driven by part size and complexity, mold structure, cavity count, steel grade, precision/tolerance requirements, surface finish, cooling design and expected production volume. Our DFM review identifies the most cost-effective mold approach.

What is included in your mold manufacturing lead time?

The lead time includes DFM review, 3D mold design, steel ordering, CNC machining, fitting and assembly, inspection and mold trial. We confirm each phase after reviewing the part design and production requirements.

Can you handle mold maintenance and long-term service?

Yes. We handle mold maintenance, spare parts and mold modifications for future orders. Keeping the mold and production process in our factory simplifies troubleshooting and quality review.

Discuss Your Project with an Engineer

Request an Injection Mold Quote

Send your part drawings or samples. Our mold engineers will review the design and deliver a tooling solution and quotation within 24 hours.

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