Customized Plastic Mould Parts

Multi-Cavity Precision Mold Core Inserts for Injection Molding

Product Overview

Customized Plastic Mould Parts and Multi-Cavity Precision Mold Core Inserts are critical functional components used in high-precision plastic injection molds.

These core inserts directly define:

• Internal geometry

• Functional features

• Dimensional stability

• Surface finish of molded parts

Designed for multi-cavity molds, our precision mold core inserts ensure cavity-to-cavity consistency, stable mass production, and long service life in demanding injection molding environments.

All components are manufactured strictly according to customer drawings (OEM / Built-to-Print).

Engineering Focus for Multi-Cavity Mold Components

Multi-cavity tooling requires higher precision than single-cavity molds. Any small deviation may lead to:

• Part weight differences

• Thread mismatch

• Flash or leakage issues

• Inconsistent wall thickness

We focus on the following machining priorities:

1️⃣ Cavity-to-Cavity Consistency

• Tight dimensional tolerance control

• Stable center distance accuracy

• Controlled concentricity and axial alignment

• Interchangeable insert design

Tolerance capability: up to ±0.005 mm depending on geometry.

2️⃣ Heat & Wear Resistance

Common material options include:

• SKD61 / 1.2344

• S136 / Stavax

• H13

• Tool steels according to DIN / JIS / AISI standards

Material selection is based on:

• Plastic material type (PP, PE, PET, PC, etc.)

• Production cycle requirements

• Mold temperature conditions

• Abrasive or filled plastics

Proper heat treatment ensures dimensional stability during long production cycles.

3️⃣ Surface Finish & Demolding Performance

Core inserts are precision finished by:

• CNC machining

• EDM processing (if complex geometry)

• Precision grinding

• Controlled polishing

Surface finish improves:

• Mold release stability

• Product appearance

• Cycle time performance

Typical Applications

Our customized plastic mould parts are widely used in:

• Bottle caps and closures

• Cosmetic packaging

• Medical consumables

• Thin-wall food packaging

• Automotive plastic components

• Electronic housings

Especially suitable for:

• High-cavity molds (8–96 cavities)

• Continuous automated production

• Export mold projects

Manufacturing Capabilities

Production equipment includes:

• CNC machining centers

• CNC lathes

• EDM (wire & sinker)

• OD / ID grinding

• Precision surface grinding

Inspection equipment:

• CMM

• Hardness tester

• Height gauge

• 2.5D projector

• Digital calipers

Each insert undergoes full-dimensional inspection before shipment.

Technical Specifications

• Tolerance: ±0.005 mm (customizable)

• Axiality control: ≤ 0.005 mm

• Surface finish: as per drawing requirements

• Minimum order quantity: 1 piece

• Production capacity: up to 2000 pieces per week

• Drawing formats supported: PDF, DWG, DXF, IGS, STEP

OEM / Built-to-Print Workflow

1️⃣ Drawing & specification review
2️⃣ Engineering evaluation & manufacturability confirmation
3️⃣ Material selection & heat treatment planning
4️⃣ CNC machining & finishing
5️⃣ In-process inspection
6️⃣ Final quality verification
7️⃣ Export packaging & shipment

We maintain full confidentiality for customer designs and projects.

Why Choose Our Multi-Cavity Mold Core Inserts

✔ Strong experience in high-cavity mold components
✔ Stable tolerance control for cavity balance
✔ Interchangeable insert design capability
✔ Advanced machining and inspection equipment
✔ Fast response within 24 hours
✔ Global shipping support
✔ Competitive pricing with stable quality

Recommended Products

To support complete injection mold assemblies, we also manufacture:

• Mold cavity inserts

• Thread cores for cap molds

• Ejector pins and sleeves

• Slide core inserts

• Angle pins and wear plates

• Mold core pins

• Hot runner nozzle tips

• Standard mold components compatible with HASCO / DME / Misumi

All products are available under OEM and built-to-print manufacturing.

Frequently Asked Questions

Q1: Can you manufacture based on our existing mold drawings?
Yes. All parts are produced strictly according to customer drawings.

Q2: Are these suitable for multi-cavity cap molds?
Yes. We specialize in multi-cavity precision mold components.

Q3: Do you support small batch or prototype orders?
Yes. Trial orders and small quantities are accepted.

Q4: How do you ensure cavity consistency?
Through precision machining, stable heat treatment, and full CMM inspection.

Request a Technical Quotation

Please send your drawings, material specifications, tolerance requirements, and quantity.

Our engineering team will review your project and provide a professional quotation within 24 hours.