H13 Nitrided Die Casting Core Pins | HPDC Mold Parts with Internal Cooling Holes

Product Overview

Nitrided customized HPDC core pins with cooling holes are precision mold components designed for injection and die casting mold systems requiring enhanced thermal control and surface durability. Manufactured through high-accuracy CNC machining, deep-hole processing, and controlled nitriding treatment, these core pins provide stable dimensional accuracy, improved wear resistance, and efficient heat dissipation. All components are produced strictly according to customer drawings and technical specifications.

Key Features & Technical Advantages

• Precision-manufactured HPDC core pins with customized shapes

• Integrated cooling hole design for improved thermal management

• CNC machining combined with deep-hole drilling processes

• Nitriding surface treatment to enhance wear resistance and service life

• Stable dimensional accuracy under repeated thermal cycles

• Suitable for high-cavity and long-run mold applications

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

Applications & Industries

These nitrided HPDC core pins are commonly used in:

• Injection and die casting molds for packaging caps and closures

• Mold systems for bottle caps and sealing components

• Medical tooling and precision mold systems

• Industrial molds requiring controlled cooling and stable geometry

They are particularly suitable for applications requiring efficient heat dissipation, surface durability, and repeatable molding performance.

Mold Structure & Design Description

HPDC core pins with cooling holes are installed on the core side of mold assemblies and are designed to form internal geometries while assisting in temperature control.
Key design considerations include:

• Accurate core pin geometry and customized profile

• Optimized cooling channel position and diameter

• Structural strength to withstand injection pressure and thermal stress

• Proper fit and alignment within multi-cavity mold structures

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

Manufacturing Capability & CNC Machining

Senlan Precision manufactures customized HPDC 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), along with other internationally recognized equipment, enabling:

• Machining accuracy up to ±0.002 mm

• Precision deep-hole drilling for internal cooling channels

• Stable tolerance control for complex and slender core pins

• Consistent surface quality prior to nitriding treatment

Nitriding is applied after machining to improve surface hardness while maintaining core toughness.

Custom Manufacturing & OEM Cooperation

We specialize in custom manufacturing and OEM cooperation, supporting:

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

• Customized core pin geometry and cooling channel design

• Material selection and nitriding process control

• Small-batch prototyping and volume production

• Long-term supply of replacement and spare mold components

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

Quality Control & Export Experience

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

• Incoming material inspection and traceability

• In-process dimensional inspection after machining

• Cooling hole position and straightness verification

• Surface hardness inspection after nitriding

• Final inspection prior to shipment with full documentation

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

Related Mold Components

• Precision mold core pins

• Mold cavity inserts

• Nitrided mold inserts and sleeves

• Multi-cavity mold spare parts

All related products are available on a custom manufacturing basis.

Technical FAQ

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

Q2: What is the function of the cooling hole in core pins?
The cooling hole improves heat dissipation, helping to stabilize mold temperature and enhance molding consistency.

Q3: Why is nitriding used for these core pins?
Nitriding increases surface hardness and wear resistance while maintaining core strength, making it suitable for high-cycle mold applications.

Q4: What machining tolerance can be achieved?
Depending on geometry and length, machining accuracy up to ±0.002 mm can be supported.

Request a Quotation

For pricing, lead time, or technical discussion regarding nitrided customized HPDC core pins with cooling holes for injection molds, please provide your drawings or technical specifications.
Our engineering team will review your requirements and provide a professional quotation accordingly.