Corrosion-Resistant Injection Mold Parts | Precision Core Pins & Thread Inserts

Product Overview

Anti-rust mold core pin thread inserts are precision injection mold components designed to provide reliable thread forming performance and corrosion resistance in plastic injection molds. These components are typically used in molds requiring stable threaded features, long service life, and controlled demolding behavior. All parts are manufactured by Senlan Precision strictly according to customer drawings under a built-to-print OEM model.

Key Features & Advantages

• Anti-rust material options for humid or corrosive molding environments

• Precision thread forming for consistent molded thread quality

• Stable core pin geometry for reliable demolding performance

• Suitable for high-cycle injection molding applications

• Tight dimensional control and repeatability

• Custom manufacturing based on drawings and specifications (OEM)

Applications / Industry Use

• Plastic bottle caps and closures

• Packaging components with internal or external threads

• Medical consumable plastic parts

• Laboratory and healthcare plastic products

• Injection molds requiring corrosion-resistant threaded cores

Mold Structure & Design Description

Thread core pin inserts are critical mold components used to form internal or external threads in plastic parts. The design focuses on thread accuracy, surface condition, and structural strength to ensure stable molding and smooth demolding. Anti-rust materials and surface treatments are selected based on molding environment, resin type, and production volume to reduce corrosion-related wear and dimensional degradation.

Manufacturing Capability & CNC Machining

Senlan Precision manufactures thread core pin inserts using high-accuracy CNC machining and controlled finishing processes. Production is supported by advanced machining equipment from MAKINO and precision turning systems from HARDINGE.

Manufacturing processes include:

• CNC turning and milling

• Precision thread machining

• EDM processing for complex profiles (if required)

• Surface treatment for corrosion resistance

• Dimensional inspection and quality verification

Custom Development / OEM Cooperation Process

1. Customer provides drawings or 3D models

2. Technical review of material, tolerances, and thread design

3. Manufacturing process planning

4. Precision machining and finishing

5. In-process and final inspection

6. Export-ready packaging and shipment

All components are produced under a Built-to-Print OEM manufacturing model.

Quality Control & Export Experience

• Raw material verification before production

• In-process dimensional and visual inspection

• Final inspection with calibrated measuring equipment

• Consistent production documentation and traceability

• Experience supplying precision mold components to overseas customers

Related Products

• Precision mold core pins and sleeves

• Thread core inserts for caps and closures

• Cavity inserts for injection molds

• Multi-cavity mold components

• Custom non-standard mold parts

FAQ – Technical & Purchasing

Q1: Can these thread core pin inserts be customized for specific thread standards?
Yes. Thread profiles, sizes, and tolerances are manufactured strictly according to customer drawings or standards.

Q2: What anti-rust options are available?
Material selection and surface treatments are recommended based on molding environment, resin type, and expected service life.

Q3: Are these inserts suitable for multi-cavity molds?
Yes. Dimensional consistency and repeatability make them suitable for multi-cavity mold applications.

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

Request a Quote

To request a quotation, please provide your drawings, material requirements, tolerance specifications, and estimated quantity.
Our engineering team will review your project and provide a technical and commercial response.