Complete Reference Guide

Injection Molding & Mold Making

Everything your molder needs to deliver an accurate quote. Prepare your details in advance and move faster.

Section 01

Informações essenciais necessárias

📐

Ficheiros CAD 3D

De preferência ficheiros STEP
Formato do modelo sólido
Geometria completa

🧪

Especificações do material

Tipo de resina (ABS, PP, PC, etc.)
Grau específico, se conhecido
Aditivos e corantes

📏

Dimensions & Tolerances

Dimensões totais da peça
Tolerâncias críticas
2D drawings with GD&T

📦

Volume de produção

Estimativa de utilização anual
Quantidade inicial da encomenda
Volume de vida útil projetado

⚙️

Detalhes da aplicação

Aplicação de utilização final
Requisitos de desempenho
Condições ambientais

🎨

Requisitos cosméticos

Especificações de acabamento da superfície
Preferências de localização do portão
Requisitos estéticos

Section 02

Mold-Only vs Full Service

#	Requirement	Mold Building Only	Mold Building & Injection Molding
1	Cavity count	✦ Required
2	Plastic resin	✦ Required	Resin + weight (unless 3D model provided)
3	Mold steel & hardness	✦ Required
4	Molding quantity	✦ Required	✦ Required
5	Surface & gate requirements	Mold finish + gate location	Color, finish, gate & more
6	Hot runner drops	✦ Required
7	Critical sizes & assembly	✦ Required	✦ Required
8	Packaging		✦ Required
9	Secondary operations		Paint, print, assembly, etc.

Section 03

Accepted File Formats

⭐

Mais preferido

.STP.STEP

Geometria sólida fiável

✅

Também aceitável

.X_T.IGS.PRT.SLDPRT.DWG

Native CAD & Parasolid

📎

Apenas referência

.STL.PDF

2D drawings for reference only

Runner System Options

Hot Runner — High Volume Production Shorter cycle times, no runner waste, lower per-part cost at scale. Recommended for volumes over 50,000 parts.

Cold Runner — Lower Volume & Tooling Cost Lower upfront mold cost, simpler tooling. Best for smaller volumes where runner waste is acceptable.

Section 04

Especificações da máquina necessárias

🔩

Força de aperto

Requisitos de tonelagem
Poder de retenção do molde

💉

Tamanho do disparo

Capacidade de volume de injeção
Volume do sistema de peças e de canais

📐

Espaço para moldes

Distância da barra de ligação
Limites de altura dos moldes
Abertura máxima para a luz do dia

Section 05

Serviços adicionais

🔬

Análise DFM

Design optimization for manufacturability and cost reduction before tooling begins.

💻

Desenho da peça

Complete 3D CAD model creation from concepts, sketches, or physical samples.

🖨️

Impressão 3D

SLA, SLS, and FDM prototyping for rapid design validation before committing to tooling.

🔧

Protótipos CNC

Production-intent material prototypes for robust functional and fit testing.

🏗️

Ferramentas suaves

Aluminum or P20 steel molds for low-volume production and bridge tooling.

📦

Vacuum Casting

Silicone mold casting for small pre-production runs with good surface quality.

Section 06

Project Timeline

From initial design to mass production — typical project stages and durations.

01
Conceção dos componentes ~7 DaysOptimize design for cost savings and manufacturability.
02
Parts Prototyping 2–3 DaysCNC machined prototypes or 3D printing for design validation.
03
Desenho de ferramentas 3–7 DaysTooling Information Worksheet used to design the mold tool accurately.
04
Verificação da conceção da ferramenta 2–3 DaysValidation of tool design accuracy before fabrication begins.
05
Fabrico de ferramentas 3–8 WeeksPrecise fabrication using CNC and EDM machining.
06
Primeiros disparos para o cliente (T1) 2–5 DaysFirst test shots sent via courier after molds are completed.
07
Tool Modifications & Texturing 3–7 DaysChanges for compliance and texturing — final step before mass production.
08
Mass Production / Tool Export ProntoReady for full-scale production runs or tool export.

5–10 Wks

Design to First Shots
Approximate total for typical projects

6–12 Wks

Complete Project
Including modifications and approval cycles

8 Steps

Production Stages
From design to mass production

Section 07

Linhas cronológicas de citações

How long to expect a quote depending on part complexity and information provided.

01
Simple Parts — Complete Information 24–72 hrsWhen all required details are provided upfront, including 3D files, material, quantity, and tolerances.
02
Complex Parts — Analysis Required 3–10 DaysFor parts with undercuts, complex geometry, tight tolerances, or multi-cavity requirements.

Section 08

Dicas para simplificar o processo de compra de moldes

Detailed RFQs Get Accurate Quotes

Submit an RFQ that leaves no room for guessing. Include mold type, cavity count, steel preference, expected mold life, and warranty expectations.

Be Transparent in Your Request

Be clear about the reason for quoting. Don’t ask for a full engineering analysis for a project years down the road.

Respect Intellectual Property

Be discreet when requesting quotes. Do not share ideas from competing mold makers.

Partner with Your Moldmaker Early

Discuss costs and timelines before you’re locked into a design. Effective early collaboration avoids costly revisions.

Keep Communication Ongoing

Ask for regular updates. Many mold makers use Gantt charts or project portals to keep clients informed.

Agree on Payment Terms

Plan for down payments and milestone-based payments, with final payment on approved samples and mold shipment.

Minimize Design Changes

Part design changes after tooling begins delay lead times and increase cost significantly.

Define Completion Criteria

A mold is complete when it produces parts meeting print specifications. All changes after approval require ECOs.

Beware of Unrealistic Deals

If an offer seems too good to be true, it usually is. Mold quality directly affects part quality for millions of cycles.

Ready to Start Your Project?

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