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Custom Plastic Mold Making Service

Custom Plastic Mold Making Service

Build production-ready molds with DFM review, in-house tooling and injection molding support.

  • Free DFM Review Before Tooling
  • In-House Mold Making and Injection Molding
  • T1 Sample and Mold Modification Support
  • Prototype, Production and Multi-Cavity Mold Support
  • Product Design
  • TOOL & DIE
  • Plastic Mold
  • Mold Making
  • Injection Mold
  • Product Design
  • TOOL & DIE
  • Plastic Mold
  • Mold Making
  • Injection Mold

What Our Mold Making Service Includes

  • Review part structure and production needs before tooling.
  • Design mold structure based on part, material and cavity plan.
  • Manufacture molds with CNC, EDM, wire cutting and fitting.
  • Validate T1 samples for size, appearance and assembly.
  • Optimize the mold based on sample results and feedback.
  • Support trial production, mass production, inspection and packaging.

Why You Need a Mold Risk Review Before Tooling?

  • 3D CAD does not always mean your part is mold-ready.
  • Low tooling cost may hide production risks.
  • Lack of DFM can lead to more T1 changes.
  • Good samples still need production validation.
  • Separate tooling and molding suppliers may create responsibility gaps.
Why You Need a Mold Risk Review Before Tooling?

What Is Injection Mold Making

Injection mold making converts your plastic part design into a production-ready tool for repeatable injection molding. Before tooling begins, the part is reviewed for wall thickness, draft angle, undercuts, gate location, parting line and assembly risks.

After mold design, the tool is manufactured by CNC, EDM, wire cutting, polishing, fitting and assembly, then verified through T1 trial samples before production.

Mold Types Based on Production Plan

Different product stages require different tooling solutions. We help choose the right mold type based on your part design, expected volume, material, cost target and long-term production needs.

Prototype Mold
Prototype Mold

For product validation, functional testing and low-volume trial production before investing in full production tooling.

Production Mold
Production Mold

Built for stable long-term injection molding production, with mold structure, steel and cooling design selected based on expected volume.

Multi-Cavity or Family Mold
Multi-Cavity or Family Mold

Designed to improve production efficiency and reduce unit cost, especially when part structure, material and molding balance are suitable.

Insert Mold, Overmold or Two-Shot Mold
Insert Mold, Overmold or Two-Shot Mold

For plastic parts combined with metal inserts, soft-touch materials, two colors or two materials, with careful review of bonding and positioning risks.

Mold Advantages

We help you turn custom plastic part designs into practical, production-ready mold solutions. From tooling strategy to long-term mold support, our goal is to make your mold project easier to manage and more reliable for production. 

20+ Years Mold Making Experience
20+ Years Mold Making Experience

We support custom mold projects from product idea to stable injection molding production.

One-Stop Tooling and Molding Factory
One-Stop Tooling and Molding Factory

Mold making and injection molding are managed under one roof for clearer communication.

Custom Mold Solutions for Different Volumes
Custom Mold Solutions for Different Volumes

We support prototype molds, production molds and multi-cavity molds based on your production plan.

Long-Term Mold Support
Long-Term Mold Support

We provide mold storage, maintenance and production support for repeat orders.

What Is Injection Mold Making

Get a Practical Mold Quote for Your Plastic Part

Share your CAD file, sample or project requirements. We will check the mold structure, material options, lead time and estimated production cost based on your real manufacturing needs.

Material and Mold Steel Selection Support

We help match plastic material, mold steel, surface finish and inspection requirements based on your product application, production volume and cost target.

ABS, PP, PC, PA, POM, PMMA, TPE, TPU, PBT, PPS

MaterialTypical ApplicationsKey Properties
ABSElectronic housings, consumer products, appliance partsGood balance of strength, impact resistance and cost
PCTransparent parts, protective covers, electronic componentsHigh impact strength, heat resistance, transparency
PPHousehold products, automotive parts, chemical-resistant componentsLightweight, chemical resistance, cost-effective
PA / NylonGears, bushings, mechanical componentsHigh strength, wear resistance, good durability
POMPrecision parts, gears, sliding componentsLow friction, dimensional stability, excellent wear resistance
PMMAOptical covers, light guides, transparent partsHigh transparency, good appearance, excellent optical performance
TPE / TPUSoft-touch parts, grips, seals, overmolded componentsFlexible, elastic, soft-touch performance
PBT / PPSElectrical components, high-temperature applicationsHeat resistance, dimensional stability, engineering performance

P20, 718, H13, S136, NAK80

 Mold Steel
Mold steel is selected based on production volume, material, surface finish and mold life requirements.
Mold SteelSuitable ForKey Point
P20General plastic molds, prototype moldsCost-effective for common plastic parts.
718Medium-volume molds, plastic housings Better stability and polishability than P20. 
H13Glass fiber materials, high-wear projectsGood wear resistance and durability. 
S136Transparent parts, high-polish molds Suitable for PC, PMMA and corrosion-resistant needs. 
NAK80Precision and cosmetic partsGood for high-gloss and appearance-sensitive parts. 
Note: Final mold steel should be confirmed based on your drawing, material, quantity and surface requirements.

Polishing, Texture, Painting, Pad Printing, Laser Engraving

Surface FinishTypical ApplicationsKey Benefits
PolishingTransparent parts, optical components, high-gloss surfacesImprove surface smoothness and achieve mirror-like appearance
TextureHousings, automotive interiors, consumer productsImprove appearance, hide minor defects and enhance grip
PaintingDecorative parts, branded products, appearance componentsAdd colors, protective layers and premium surface effects
Pad PrintingLogos, symbols, product markingsAdd detailed graphics and brand identification
Laser EngravingSerial numbers, logos, permanent marksProvide durable and precise identification
SPI Surface FinishCosmetic parts requiring consistent appearanceControl surface quality and meet appearance requirements

Tolerance, Inspection Method, Sample Approval Standard

Quality ItemWhat We CheckCustomer Benefit
Dimensional AccuracyCritical dimensions, tolerances and key featuresEnsure parts fit your assembly requirements
Inspection MethodsCMM, caliper, height gauge and visual inspectionVerify part quality with reliable measurement methods
T1 Sample ValidationAppearance, dimensions, assembly and functional checksReduce risks before mass production
Quality StandardsInspection criteria and approval requirementsKeep production quality consistent
Mold Trial RecordsTrial results, adjustments and improvement feedbackProvide clear project tracking and validation
DFM Review Before Tooling
Before tooling, our engineers review wall thickness, draft angle, undercuts, gate location, parting line, ejection and assembly risks.
No.Inspection ItemInspection ContentCore Purpose
1Wall Thickness ReviewCheck thick sections and uneven wallsReduce sink marks, warpage and long cooling cycles
2Draft Angle CheckReview draft angleSupport smooth mold release and reduce scratches, drag marks or ejection damage
3Undercut AnalysisIdentify undercuts earlySuggest sliders, lifters or design changes when needed
4Gate Location ReviewEvaluate gate positionImprove filling balance, appearance control, strength and weld line position
5Parting Line EvaluationReview parting line positionBalance mold release, cosmetic surface requirements and secondary finishing
6Ejection Design CheckCheck ejector layoutReduce deformation, ejector marks and part damage during demolding
7Material Suitability ReviewReview material choice based on shrinkage, strength, temperature resistance, transparency, flexibility or flame-retardant needsEnsure material matches product performance requirements
8Tolerance and Assembly Risk CheckCheck critical dimensions, screw bosses, snap fits and assembly gapsEnsure repeatable production and smooth assembly

How to Start Mold Project with Us?

Drawing and Requirement Upload

Send your 3D drawing, 2D drawing, sample, photos, material requirement and estimated quantity for initial review.

Initial Project Review

We review the basic part structure, material feasibility, tooling direction, estimated cost range and project timeline.

DFM and Moldability Analysis

Our engineers review wall thickness, draft angle, undercuts, gate location, parting line, shrinkage, warpage, assembly and tolerance risks before tooling.

Mold Design and Manufacturing

After mold structure is confirmed, we move to mold design and manufacturing, including CNC, EDM, wire cutting, polishing, fitting and assembly.

T1 Trial and Mold Modification

T1 samples are molded and checked for dimensions, appearance, assembly and molding stability. If needed, we adjust the mold before approval.

Mass Production and Delivery

After sample approval, we support trial production, mass production, quality inspection, packaging and shipment.

What files do you need for the molds quotation?

We usually need a 3D drawing such as STEP or STP for accurate evaluation. If available, please also provide 2D drawings, material requirements, surface finish, estimated quantity and application details. Samples, photos or sketches with dimensions are also helpful for early review.

Can you provide DFM review before mold making?

Yes. Before tooling starts, our engineers review wall thickness, draft angle, undercuts, gate location, parting line, ejection, shrinkage, and assembly risks. This helps reduce unnecessary mold changes after T1 samples.

How long does it take to make an injection mold?

Mold lead time depends on part size, structure complexity, cavity number, steel selection and modification requirements. After reviewing your drawing, we can provide a more realistic tooling timeline and project schedule.

What affects plastic injection mold cost?

Mold cost is affected by part size, structure complexity, cavity number, mold steel, sliders, lifters, surface finish, tolerance and expected production volume. We recommend a tooling plan based on your production needs, not only the lowest mold price.

What happens if T1 samples need modification?

T1 samples are used to check dimensions, appearance, assembly and molding stability. If issues are found, we analyze whether they come from product design, mold structure or molding process, then suggest proper mold modification before production.

Can you help select a plastic material?

Yes. We can suggest suitable materials based on product strength, appearance, flexibility, transparency, temperature resistance, flame-retardant needs and application environment. Common options include ABS, PP, PC, PA, POM, PMMA, TPE, TPU and other engineering plastics.

Who owns the mold after payment?

For molds used in our factory for injection molding production, we can provide mold storage and maintenance support based on the agreed production plan.

Can you sign NDA or NNN before reviewing drawings?

Yes. We understand custom mold projects often involve confidential product designs. NDA or NNN agreements can be signed before reviewing drawings, samples or project details, and customer files will be handled as confidential project information.

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