Custom Wire EDM Components for Complex Molds | Precision Core & Cavity Inserts

Product Overview

Plastic mold core inserts are critical functional components used in plastic injection molds to define part geometry and ensure molding accuracy. Manufactured through precision CNC machining combined with wire cut (WEDM) processes, these core inserts provide tight tolerances, accurate profiles, and stable dimensional control. All components are custom produced according to customer drawings and technical specifications for injection mold applications.

Key Features & Technical Advantages

• Precision-manufactured core inserts for plastic injection molds

• CNC machining combined with wire cut (WEDM) process

• High dimensional accuracy for complex and sharp-profile features

• Stable geometry and reliable cavity-to-core matching

• Consistent surface quality for molding and demolding performance

• Suitable for multi-cavity and high-precision mold structures

• Fully customized / OEM / Built-to-Print manufacturing

Applications & Industries

These plastic mold core inserts are widely applied in:

• Injection molds for packaging caps and closures

• Mold systems for bottle caps and sealing components

• Medical packaging molds and syringe-related tooling

• Precision molds requiring strict cavity consistency

They are particularly suitable for applications where complex profiles, sharp corners, and tight tolerances are required.

Mold Structure & Design Description

Core inserts are designed as replaceable elements integrated into the core side of injection molds.
Key structural considerations include:

• Accurate geometry matching product and cavity design

• Proper fit and alignment with surrounding mold components

• Structural strength to withstand injection pressure and clamping force

• Compatibility with interchangeable or modular mold designs

All core inserts are designed and machined strictly based on customer drawings to ensure reliable assembly and stable mold operation.

Manufacturing Capability & CNC Machining

Senlan Precision manufactures plastic mold core inserts using advanced CNC machining and precision finishing processes.
Our production facilities are equipped with high-precision machining centers and wire cut systems from MAKINO (Japan), HARDINGE (USA), and other internationally recognized brands, enabling:

• Machining accuracy up to ±0.002 mm

• Precise wire cut processing for complex and narrow features

• Stable dimensional control for critical mold areas

• Consistent quality and repeatability across production batches

Process routes are selected according to part geometry, tolerance requirements, and mold function.

Custom Manufacturing & OEM Cooperation

We specialize in custom manufacturing and OEM cooperation, supporting:

• Built-to-Print production based on 2D drawings or 3D models

• Custom material selection and heat treatment requirements

• Small-batch prototyping and volume production

• Long-term supply of replacement and spare mold inserts

Technical communication is maintained throughout the project to ensure accurate implementation of customer specifications.

Quality Control & Export Experience

With over 20 years of experience in exporting precision mold components, Senlan Precision operates a structured quality control system:

• Incoming material inspection

• In-process dimensional and profile inspection

• Final inspection prior to shipment

• Traceable inspection records and technical documentation

We are experienced in international technical communication, quality standards, and export packaging requirements.

Related Mold Components

• Precision mold core pins

• Cavity inserts and cavity blocks

• Mold inserts with EDM and grinding processes

• Multi-cavity mold spare components

All related products are available on a custom manufacturing basis.

Technical FAQ

Q1: Are core inserts manufactured strictly according to customer drawings?
Yes. All core inserts are produced strictly based on customer-provided drawings and specifications.

Q2: Why is wire cut (WEDM) used for core inserts?
Wire cut machining allows precise processing of complex profiles, sharp corners, and narrow features that are difficult to achieve with conventional machining.

Q3: What tolerance levels can be achieved?
Depending on part geometry, machining accuracy up to ±0.002 mm can be supported.

Q4: Can these inserts be used as replacement parts for existing molds?
Yes. Replacement and interchangeable core inserts can be manufactured to match existing mold designs.

Request a Quotation

For pricing, lead time, or technical discussion regarding plastic mold core inserts with wire cut machining, please provide your drawings or technical specifications.
Our engineering team will review your requirements and provide a professional quotation accordingly.