Custom Medical Core Pins | High-Hardness Tooling for Rubber & Silicone Molds

Product Overview

Senlan Precision manufactures custom high-hardened mold core pins for medical cavity rubber tooling and related injection mold applications. These core pins are produced strictly on a Built-to-Print / OEM basis, focusing on high hardness, dimensional stability, and repeatable accuracy required for medical-grade rubber and elastomer molding processes.

Key Features & Technical Advantages

• High-hardened tool steel options suitable for rubber and elastomer molding

• Stable hardness distribution after heat treatment for long service life

• Precision CNC machining ensures accurate diameter, straightness, and concentricity

• Smooth surface finish to reduce friction and material adhesion

• Suitable for single-cavity and multi-cavity medical molds

• Manufactured strictly according to customer drawings and specifications

Application Scenarios / Industry Applications

• Medical rubber cavity molds

• Elastomer and silicone rubber injection molds

• Medical tubing, seals, and soft component tooling

• High-precision medical consumable molds

• Mold maintenance and replacement of worn core pins

Mold Structure & Design Description

In medical cavity rubber tooling, core pins form critical internal geometries and directly affect part accuracy and surface quality. High hardness and dimensional consistency are essential to maintain cavity integrity under repeated molding cycles. Senlan Precision produces core pins designed to integrate seamlessly into existing mold structures, ensuring stable demolding and consistent cavity performance.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision operates advanced machining systems to meet medical mold requirements:

• MAKINO high-precision CNC machining centers (Japan)

• HARDINGE CNC turning equipment (USA)

• CNC turning, milling, cylindrical grinding, and fine finishing processes

• Controlled heat treatment for hardness and structural stability

Typical achievable tolerances range from ±0.003 mm to ±0.01 mm, depending on geometry and application requirements.

Custom Development / OEM Cooperation Process

1. Review of customer drawings, tolerances, and application conditions

2. Material selection and hardness specification confirmation

3. Precision CNC machining and intermediate inspection

4. Heat treatment and dimensional stabilization

5. Final inspection and quality verification

6. Packaging and export shipment

All projects are managed under a strict Built-to-Print OEM workflow.

Quality Control & Export Experience

• Incoming material verification and traceability

• In-process dimensional and hardness inspection

• Straightness, concentricity, and surface finish checks

• Final inspection before shipment

• Extensive experience supplying precision mold components to international customers

Related Products Recommendation

• Medical mold ejector pins and stepped core pins

• Rubber mold cavity inserts

• Precision mold sleeves and bushings

• Multi-cavity mold spare parts

FAQ – Technical & Procurement

Q1: Are these core pins suitable for medical rubber molds?
Yes. They are designed for medical cavity rubber and elastomer tooling applications.

Q2: Can hardness and material be customized?
Yes. Material grade and hardness level are defined according to customer specifications.

Q3: What tolerances can be achieved?
Typical tolerances range from ±0.003 mm to ±0.01 mm, depending on part design.

Q4: Do you support OEM and non-standard designs?
Yes. All core pins are manufactured strictly according to drawings or samples.

Q5: Can you support small batch or trial production?
Yes. Both prototype and mass production orders are supported.

Get a Quote

For pricing, lead time, or technical evaluation of custom high-hardened mold core pins for medical cavity rubber tooling, please contact Senlan Precision with your drawings or specifications. Our engineering team will provide a detailed quotation and manufacturing assessment.