Medical Pipette Tip Core Pins | ±pm$0.005mm Tolerance & Concentricity Inserts

Product Overview

Core pin insert pins for medical mold pipette tips are precision-manufactured components designed to achieve stable geometry, consistent surface quality, and high repeatability. These core pins are produced with strict tolerance and concentricity control within ±0.005 mm, supporting reliable molding performance in high-cavity and high-cycle medical tooling applications.

Core Features & Technical Advantages

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

• Tolerance and concentricity controlled within ±0.005 mm

• High dimensional stability for precision medical molds

• Optimized surface finish to reduce friction and demolding resistance

• Suitable for multi-cavity pipette tip mold structures

• Designed for consistent performance over long production cycles

Applications & Industry Use

These core pin insert pins are widely used in:

• Medical injection molds for pipette tips

• Precision mold systems requiring strict concentricity control

• High-cavity tooling with interchangeable core pin designs

• Medical consumable mold projects requiring repeatable accuracy

• Export-oriented medical mold manufacturing

All applications are industrial and medical tooling related, without consumer branding.

Mold Structure & Design Description

Within a pipette tip injection mold, core pin insert pins typically serve as:

• Primary forming elements defining internal geometry

• Precision reference components for concentric alignment

• Replaceable wear parts in high-cycle mold assemblies

Key design considerations include:

• Concentric alignment between core pin and cavity

• Uniform load distribution during injection and cooling

• Compatibility with mold venting and cooling layouts

• Ease of replacement without affecting base mold accuracy

Manufacturing Capability & CNC Machining

Senlan Precision manufactures core pin insert pins using advanced CNC equipment, including MAKINO (Japan) and HARDINGE (USA) precision machining systems.

Manufacturing processes include:

• High-precision CNC turning and milling

• Cylindrical and profile grinding for concentricity control

• EDM machining for complex geometries when required

• Coordinated heat treatment and stress relief

• In-process and final dimensional inspection

These capabilities ensure stable accuracy and batch-to-batch consistency.

Custom Development & OEM Cooperation Process

All core pin insert pins are supplied on a customized / OEM / Built-to-Print basis.

Standard cooperation workflow:

1. Technical drawing and requirement review

2. Feasibility analysis for tolerance and concentricity

3. Precision machining and finishing

4. Dimensional and concentricity inspection

5. Packaging and export delivery

Both prototype and series production are supported.

Quality Control & Export Experience

Quality control measures include:

• Incoming material verification

• Dimensional and concentricity inspection at key stages

• Surface finish verification

• Final inspection prior to shipment

Senlan Precision has extensive experience supplying precision medical mold components to international customers with stable quality and controlled delivery.

Related Products

• Pipette tip mold cavity inserts

• Medical mold core pins with special geometries

• High-precision mold wear parts

• Custom inserts for multi-cavity medical molds

All related products are available as custom / OEM solutions.

Technical FAQ

Q1: Can you guarantee ±0.005 mm concentricity?
Concentricity is controlled and verified according to drawing requirements through precision machining and inspection.

Q2: Are these pins available in standard sizes?
No. All core pins are manufactured strictly according to customer drawings.

Q3: Do you support high-cavity medical molds?
Yes. These core pins are suitable for multi-cavity and high-cycle mold applications.

Q4: What information is required for quotation?
2D/3D drawings, material specification, tolerance and concentricity requirements, and order quantity.

Request a Quotation

For custom core pin insert pins for medical mold pipette tips, please submit your technical drawings and specifications.
Our engineering team will review your requirements and provide a detailed quotation based on your project needs.