BeCu Plastic Mould Parts

Beryllium Copper Mold Inserts for Plastic Injection Mold Tooling

Product Overview

Our BeCu (Beryllium Copper) mold inserts and mold parts are engineered for plastic injection molds where thermal conductivity and cycle time optimization are critical.

BeCu inserts are typically used in:

• Hot spot areas

• Thin-wall sections

• Deep core regions

• Cosmetic surface areas

• High-heat accumulation zones

These inserts significantly improve heat dissipation, reduce cooling time, and enhance molding stability.

All components are manufactured strictly according to customer drawings.

Why Use BeCu in Injection Molds?

Compared to conventional tool steel, BeCu provides:

• Thermal conductivity up to 3–5 times higher than H13

• Faster cooling and shorter cycle time

• Improved dimensional stability

• Reduced sink marks and warpage

• Better surface finish consistency

Especially suitable for high-cavity molds and thin-wall packaging applications.

Typical Applications

BeCu mold inserts are widely used in:

• Cosmetic packaging molds

• Medical device molds

• Thin-wall food container molds

• Bottle cap molds

• Electronic housing molds

• Automotive interior plastic parts

Particularly effective in multi-cavity molds requiring uniform cooling.

Material – BeCu (Beryllium Copper Alloy)

BeCu alloys offer:

• High thermal conductivity

• Good strength and toughness

• Excellent machinability

• Stable dimensional performance

Hardness depends on alloy grade and heat treatment condition.

Heat treatment options available upon request.

Engineering Focus

The effectiveness of BeCu inserts depends on:

• Correct positioning in heat concentration zones

• Accurate fit with steel mold components

• Controlled expansion compatibility

• Surface finishing quality

1) Precision Machining & Fit Accuracy

• Tolerance: up to ±0.01 mm (depending on geometry)

• Axiality: ≤ 0.005 mm

• Verticality: ≤ 0.005 mm

• Surface finish: Ra 0.6 or finer

Critical matching surfaces are ground for accurate assembly.

2) Cooling Efficiency Optimization

BeCu inserts are often integrated with:

• Conformal cooling channels

• Deep core cooling systems

• High-speed molding systems

Proper design improves heat transfer and reduces cycle time.

3) Surface Finish & Appearance Quality

BeCu offers excellent polishing characteristics.

Used in cosmetic-grade applications to:

• Improve cavity surface finish

• Reduce surface defects

• Enhance gloss consistency

Mirror polishing available upon request.

Manufacturing Capability

Processing includes:

• CNC machining

• CNC milling

• Sodick EDM

• Wire EDM

• OD / ID grinding

• Surface grinding

• Thread grinding

• Polishing

BeCu machining requires controlled parameters to maintain dimensional stability.

Product Range

We manufacture:

• BeCu core inserts

• BeCu cavity inserts

• BeCu core pins

• Movable core components

• Precision mold inserts

Custom sizes and non-standard geometries are supported.

Industries Served

• Medical device manufacturing

• Cosmetic packaging

• Food and beverage packaging

• Electronic components

• Automotive plastic components

Quality Control

Each BeCu mold insert undergoes:

• Material verification

• Dimensional inspection

• Surface roughness measurement

• Assembly fit inspection

Inspection reports available upon request.

OEM / Built-to-Print Manufacturing

We support:

• Manufacturing based on 2D / 3D drawings

• Small batch and mass production

• Replacement inserts for existing molds

• Rapid quotation and technical evaluation

NDA available upon request.

Related Products

To support complete injection mold assemblies, we also supply:

• H13 core inserts

• Thread cores for cap molds

• Precision cavity inserts

• Multi-cavity mold components

• High-precision ejector pins and sleeves

All components are compatible with high-cycle injection mold systems.

Ordering Process

1. Submit drawings or samples

2. Technical evaluation

3. Quotation

4. 50% deposit

5. Production (standard: approx. 10 working days)

6. Final inspection

7. Shipment

Shipping options: Express, air freight, sea freight.

Payment Terms

• T/T

• PayPal

• Western Union
  50% deposit, balance before shipment.

Technical FAQ

Q1: Why choose BeCu instead of H13 in certain mold areas?
BeCu improves cooling efficiency and reduces cycle time in heat-concentrated areas.

Q2: Is BeCu suitable for cosmetic surface areas?
Yes. It offers good polishing properties for high-appearance applications.

Q3: Can BeCu inserts be used in multi-cavity molds?
Yes. They help improve temperature balance across cavities.

Q4: Are custom shapes supported?
Yes. All inserts are manufactured according to drawings.