Medical Grade Pipette Tip Core Pins | ±pm$0.002mm Concentricity Injection Mold Parts

Product Overview

Precision core pins for pipette tips injection molds are critical components used to form thin-wall internal geometries requiring excellent surface finish and strict concentricity control. Manufactured through precision CNC machining and fine finishing processes, these core pins ensure dimensional stability and consistent molding quality. All components are custom produced strictly according to customer drawings and technical specifications.

Key Features & Technical Advantages

• Designed specifically for pipette tips injection molds

• High surface finish to support smooth demolding and stable part quality

• Controlled concentricity for accurate wall thickness formation

• Precision CNC machining for fine and slender pin geometries

• Stable dimensional performance in high-cycle mold operation

• Suitable for multi-cavity and high-output mold systems

• Fully customized / OEM / Built-to-Print manufacturing

Applications & Industries

These precision core pins are widely used in:

• Injection molds for laboratory pipette tips

• Medical packaging molds requiring fine internal geometry

• Multi-cavity molds for high-volume disposable components

• Precision injection molds with strict surface and alignment requirements

They are especially suitable for applications where surface quality, concentricity, and repeatable molding performance are critical.

Mold Structure & Design Description

Core pins for pipette tips molds are installed on the core side of injection molds and are responsible for forming the internal taper and wall thickness of the molded parts.
Key design considerations include:

• Accurate concentricity between pin axis and mold cavity

• Fine surface finish to reduce friction during demolding

• Slender pin strength and stability during injection pressure

• Precise positioning to ensure uniform wall thickness

All core pins are designed and manufactured strictly according to customer drawings to ensure correct mold assembly and stable production.

Manufacturing Capability & CNC Machining

Senlan Precision manufactures precision core pins using advanced CNC machining and finishing technologies.
Our production facilities are equipped with high-precision machining centers and CNC systems from MAKINO (Japan) and HARDINGE (USA), enabling:

• High-accuracy CNC turning and micro-machining

• Stable concentricity control for slender core pins

• Consistent surface finish through precision grinding and polishing

• Reliable repeatability across production batches

Machining and finishing routes are selected based on pin geometry, tolerance requirements, and mold application.

Custom Manufacturing & OEM Cooperation

We specialize in custom manufacturing and OEM cooperation, supporting:

• Built-to-Print production from 2D drawings or 3D models

• Customized pin diameters, lengths, and taper geometries

• Process optimization for surface finish and concentricity

• Small-batch prototyping and volume production

• Long-term supply of replacement and spare mold core pins

Technical communication is maintained throughout the project to ensure accurate execution of specifications.

Quality Control & Export Experience

With over 20 years of experience in exporting precision mold components, Senlan Precision applies a structured quality control system:

• Incoming material inspection and traceability

• In-process dimensional and concentricity inspection

• Surface finish verification

• Final inspection prior to shipment with complete documentation

We are experienced in international technical communication, quality requirements, and export packaging standards.

Related Mold Components

• Pipette tips mold cavity inserts

• Precision mold sleeves

• Multi-cavity mold core inserts

• Injection mold spare parts

All related products are available on a custom manufacturing basis.

Technical FAQ

Q1: Are these core pins manufactured strictly according to drawings?
Yes. All core pins are produced strictly based on customer-provided drawings and technical specifications.

Q2: How is surface finish controlled for pipette tips core pins?
Surface finish is achieved through optimized CNC machining combined with precision grinding and polishing processes.

Q3: Can tight concentricity be maintained for slender core pins?
Yes. Concentricity is controlled through precision machining and verified during inspection.

Q4: Can replacement core pins be manufactured for existing molds?
Yes. Replacement and interchangeable core pins can be manufactured to match existing mold designs.

Request a Quotation

For pricing, lead time, or technical discussion regarding precision core pins for pipette tips injection molds, please provide your drawings or technical specifications.
Our engineering team will review your requirements and provide a professional quotation accordingly.