Nitrided Core Pins for Medical Tubing | Precision Mold Tooling for Plastic Tubes

Product Overview

Senlan Precision manufactures nitriding-coated precision core pins specifically for medical plastic tube injection moulds. Produced strictly according to customer drawings, these core pins combine controlled base material properties with surface nitriding to improve wear resistance, dimensional stability, and service life in high-cavity, high-cycle medical mould applications.

Key Features & Technical Advantages

• Nitriding surface treatment for enhanced wear and abrasion resistance

• Stable core pin geometry for thin-wall medical tube moulding

• Improved surface hardness with minimal core deformation

• Consistent concentricity and straightness for multi-cavity moulds

• Suitable for long-cycle medical production environments

• Custom / OEM / Built-to-Print manufacturing only

Application Scenarios / Industry Applications

• Medical plastic tube injection moulds

• Disposable medical consumables mould tooling

• Multi-cavity moulds for laboratory and healthcare products

• Precision mould components requiring extended service life

Mold Structure & Design Description

These precision core pins are typically installed in mould cavities forming the internal diameter of medical tubes. After CNC machining to near-net shape, nitriding treatment is applied to increase surface hardness while maintaining a tough core. This structure reduces wear and galling during repeated injection cycles, ensuring consistent inner dimensions and reliable demoulding performance.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision operates advanced machining and finishing equipment, including:

• MAKINO high-precision CNC machining centers (Japan)

• HARDINGE CNC turning systems (USA)

• Precision cylindrical grinding for tight tolerances

• Controlled nitriding processes for mould tooling

• In-process inspection and final dimensional verification

These capabilities support stable production of high-precision core pins for medical moulds.

Custom Development / OEM Cooperation Process

1. Customer drawing and technical requirement review

2. Material and nitriding specification confirmation

3. CNC machining and precision grinding

4. Controlled nitriding surface treatment

5. Final inspection and dimensional verification

6. Secure packaging and export shipment

All projects follow a Built-to-Print OEM workflow.

Quality Control & Export Experience

• Incoming material inspection and traceability

• Dimensional inspection before and after nitriding

• Surface hardness and straightness verification

• Experience supplying mould components to overseas medical and packaging customers

• Export-grade packaging to prevent corrosion and handling damage

Related Products Recommendation

• Precision medical mould core pins and sleeves

• Nitrided cavity inserts for injection moulds

• EDM-processed mould components

• Custom ejector pins for medical tooling

FAQ – Technical & Procurement

Q1: Why choose nitriding for medical mould core pins?
Nitriding improves surface hardness and wear resistance without significantly affecting core toughness or dimensional stability.

Q2: Can you meet strict concentricity and straightness requirements?
Yes. Precision grinding and controlled heat treatment ensure compliance with drawing specifications.

Q3: Do you offer standard sizes?
No. All core pins are manufactured Built-to-Print according to customer drawings.

Q4: Is nitriding suitable for high-cavity moulds?
Yes. Nitrided core pins are well-suited for long production runs and high-cycle moulding.

Q5: Can small batch or replacement orders be supported?
Yes. Prototype, small batch, and maintenance replacement orders are supported.

Get a Quote

For pricing, lead time, or technical consultation on nitriding-coated precision core pins for medical plastic tube moulds, contact Senlan Precision with your drawings or specifications. Our engineering team will provide a detailed technical evaluation and quotation.