Sodick EDM Machined Mold Parts | High-Hardness Precision Core Pins

Product Overview

High hardness plastic mould parts with precision core pins are critical functional components used in injection molds requiring high wear resistance, dimensional stability, and long service life. These core pins are manufactured through precision machining and EDM processing to meet strict tolerance and surface integrity requirements, ensuring consistent molding performance in demanding production environments.

Key Features & Advantages

• High hardness material selection for enhanced wear resistance

• Precision core pin manufacturing with tight dimensional control

• EDM processing suitable for complex geometries and fine features

• Stable performance in high-cycle and multi-cavity molds

• Reduced deformation under molding pressure and temperature

• Built-to-print manufacturing based strictly on customer drawings

Applications / Industry Use

• Plastic bottle caps and closures

• Packaging and daily-use plastic product molds

• Medical consumables and disposable plastic components

• High-precision injection molds with fine structural features

• Multi-cavity molds requiring uniform part consistency

Mold Structure & Design Description

Precision core pins are essential mold components responsible for forming internal features, holes, and fine details in injection-molded parts. For high hardness applications, the core pin design must balance strength, wear resistance, and dimensional accuracy. Senlan Precision manufactures core pins with optimized geometry and controlled EDM finishing to ensure reliable demolding and consistent cavity replication.

Manufacturing Capability & CNC Machining

Senlan Precision operates advanced CNC machining and EDM systems, enabling stable production of high-hardness mold components. Our equipment includes precision machining centers from MAKINO and turning systems from HARDINGE, combined with high-accuracy EDM processing using Sodick machines.

Manufacturing processes include:

• CNC turning and milling

• Precision EDM for complex and narrow features

• Surface finishing and polishing as required

• Dimensional inspection for concentricity and straightness

• Flexible production from prototype to batch orders

Custom Development / OEM Cooperation Process

1. Customer submits drawings or 3D models

2. Engineering review of tolerances, hardness, and structure

3. Manufacturing process confirmation

4. Precision machining and EDM processing

5. In-process and final inspection

6. Export packaging and shipment

All projects follow a Built-to-Print OEM manufacturing model.

Quality Control & Export Experience

• Incoming material inspection and traceability

• In-process dimensional monitoring

• Final inspection using calibrated measuring instruments

• Quality documentation for international shipments

• Experience supporting overseas mold makers and OEM manufacturers

Related Products

• Precision mold core pins and sleeves

• Cavity inserts for plastic injection molds

• Thread core inserts for caps and closures

• Multi-cavity mold components

• Custom non-standard mold parts

FAQ – Technical & Purchasing

Q1: Can you manufacture core pins according to customer drawings only?
Yes. All core pins are produced strictly based on customer-provided drawings or models.

Q2: Are these core pins suitable for high-cycle molds?
Yes. High hardness material and precision processing support long service life in high-cycle applications.

Q3: Why is EDM processing used for these core pins?
EDM allows accurate machining of complex geometries and fine features that are difficult to achieve with conventional cutting.

Q4: Do you support small batch or prototype orders?
Yes. Prototype, pilot, and mass production orders are all supported.

Request a Quote

To request a quotation, please provide your drawings, material requirements, hardness specifications, and order quantity.
Our engineering team will review your requirements and respond with a technical and commercial proposal.