Product Overview

This custom nitrided shoulder core pin is a precision injection mold component designed for laboratory pipette tip molds used in medical and diagnostic applications.
Manufactured strictly to customer drawings, the core pin features a nitrided hardened surface to improve wear resistance, dimensional stability, and long-term performance in high-cavity, high-cycle medical injection molding environments.

Key Features & Technical Advantages

• Custom manufactured based on customer drawings (built-to-print)

• Nitriding surface hardening for enhanced wear resistance

• High dimensional accuracy for medical injection molds

• Stable performance in multi-cavity pipette tip molds

• Reduced mold maintenance and extended component service life

• Suitable for high-speed, automated injection molding lines

Applications & Industries

This shoulder core pin is commonly used in injection molds for:

• Laboratory pipette tips

• Disposable medical consumables

• Pharmaceutical and diagnostic plastic components

• Medical-grade injection molding systems

Typical customers include medical consumables manufacturers, laboratory equipment producers, and OEM mold makers serving the healthcare industry.

Mold Structure & Design Description

The shoulder core pin is a critical functional element within pipette tip injection molds, responsible for forming internal geometries and maintaining precise alignment during molding.
The shoulder structure ensures accurate positioning within the mold cavity, while the nitrided surface improves resistance to abrasion caused by repetitive molding cycles.
Design considerations include tolerance control, thermal stability, and compatibility with multi-cavity mold configurations.

Manufacturing & CNC Machining Capability

All core pins are manufactured in-house using precision CNC machining processes to ensure consistent quality and dimensional accuracy.

Our manufacturing capabilities include:

• High-precision CNC turning and milling

• Precision grinding for tight tolerance control

• Controlled nitriding heat treatment

• Surface finishing suitable for medical injection molds

Each component is produced under controlled machining and inspection processes to meet medical mold application requirements.

Custom Development & OEM Cooperation Process

We provide full OEM and built-to-print manufacturing support for custom mold components:

1. Review of customer drawings or technical specifications

2. Engineering evaluation and manufacturability confirmation

3. CNC machining and surface hardening

4. Dimensional inspection and quality verification

5. Packaging and delivery for overseas mold assembly

All products are custom-made exclusively according to customer requirements.

Quality Control & Export Experience

Quality control is integrated throughout the manufacturing process, including:

• Raw material inspection

• In-process dimensional inspection

• Final inspection prior to shipment

Our core pins are widely used in export-oriented medical and packaging mold projects, supporting overseas mold assembly and international manufacturing standards.

Related Products (Internal Links)

• Precision Mold Core and Cavity Components

• Injection Mold Core Pins for Medical Applications

• Multi-Cavity Injection Mold Components

• Custom Hardened Mold Inserts

Frequently Asked Questions (FAQ)

Q1: Can you manufacture nitrided shoulder core pins based on customer drawings?
Yes. All core pins are custom manufactured strictly according to customer drawings and technical specifications.

Q2: Are these core pins suitable for multi-cavity pipette tip molds?
Yes. The design and nitriding process support stable performance in high-cavity, high-cycle injection molds.

Q3: What material and surface treatment options are available?
Material selection and surface treatments, including nitriding, can be customized based on mold design and application requirements.

Q4: Do you support overseas mold projects?
Yes. Our products are commonly supplied for export mold projects and overseas production lines.

Request a Technical Quotation

Please send us your drawings or technical requirements for a professional evaluation and quotation for your custom injection mold core pin.