Internal Cooling Core Pins | Stepped OD Precision Ground Mold Components

Product Overview

The Stepped OD Grinding Die Casting Core Pin with Cooling System is a precision mold core component designed for plastic injection molding applications requiring controlled cooling and complex stepped geometries. Manufactured through high-accuracy OD grinding and internal cooling channel machining, this core pin supports thermal stability, dimensional consistency, and reliable performance in high-cycle industrial molding environments.

Key Features & Advantages

• Stepped Outer Diameter Design
  Enables accurate forming of multi-diameter features and precise positioning within complex mold structures.

• Integrated Cooling System
  Internal cooling channels enhance heat dissipation and support stable molding conditions.

• Precision OD Grinding
  Ensures excellent straightness, concentricity, and surface consistency across stepped sections.

• High Structural Stability
  Optimized for resistance to deformation under injection pressure and thermal load.

• Built-to-Print Manufacturing
  Fully customized according to customer drawings, tolerances, and cooling layout requirements.

Applications & Industry Use

• Packaging Mold Systems
  Suitable for bottle caps, closures, and packaging containers with thick or stepped internal features.

• Medical Plastic Injection Molds
  Applied in molds requiring controlled cooling and dimensional stability.

• Multi-Cavity Injection Molds
  Supports consistent cavity performance across high-cavity mold layouts.

• Industrial Plastic Molding Tools
  Used in molds with demanding thermal management and complex core geometries.

Mold Structure & Design Description

The stepped OD core pin is typically installed as a central forming element within the mold core assembly. The stepped geometry allows precise fitment and load distribution, while the integrated cooling system reduces localized heat accumulation. This design improves cycle stability and minimizes dimensional variation during continuous production.

Manufacturing Capability & CNC Machining

• High-Precision CNC Turning & OD Grinding
  Maintains tight diameter tolerances and step-to-step alignment.

• Cooling Channel Machining
  Internal drilling and finishing for reliable coolant flow.

• Heat Treatment Control
  Balanced hardness and toughness for long service life.

• Surface Finishing Options
  Grinding and polishing available according to mold performance requirements.

Custom Development / OEM Cooperation Process

1. Drawing & Technical Requirement Review
   Customer provides drawings, stepped dimensions, cooling design, and tolerances.

2. Engineering Feasibility Analysis
   Evaluation of structural stability, cooling efficiency, and machining approach.

3. Precision Manufacturing
   CNC machining, OD grinding, cooling channel processing, and heat treatment.

4. Dimensional & Functional Inspection
   Verification of diameters, step transitions, straightness, and cooling channel integrity.

5. Packaging & Delivery
   Protective packaging suitable for precision core components and export shipment.

Quality Control & Export Experience

• ISO 9001 Quality Management System
  Full process traceability from raw material to final inspection.

• Precision Measurement Equipment
  Inspection of stepped diameters, concentricity, and straightness.

• Cooling Channel Verification
  Functional checks to ensure unobstructed coolant flow.

• International Supply Experience
  Stable export delivery of precision mold components to global customers.

Related Products (Internal Links)

• Precision Mold Core Pins

• Mold Core Inserts with Cooling Channels

• Multi-Cavity Injection Mold Components

• Custom CNC Machined Mold Parts

FAQ

Q1: Can the stepped OD design be fully customized?
Yes. All stepped dimensions and tolerances are manufactured strictly to customer drawings.

Q2: What types of cooling systems can be integrated?
Straight or custom internal cooling channels can be produced based on mold design requirements.

Q3: Is OD grinding applied to all stepped sections?
Yes. Each stepped diameter can be ground to ensure accuracy and consistency.

Q4: Are these core pins suitable for high-cycle production?
Yes. The design supports thermal stability and structural reliability in continuous operation.

Q5: Do you support OEM and non-standard designs?
Yes. All products are built-to-print and fully customized.

Get a Quote

For customized Stepped OD Grinding Core Pins with Cooling System for injection molding applications, contact Senlan Precision.
Please provide your drawings, technical specifications, and required quantities to receive a detailed quotation and manufacturing assessment.