H13 (1.2344) Mold Core Inserts | Vacuum Hardened Precision Injection Mold Parts

Product Overview

The 1.2344 hardened mold core insert is a critical forming component for plastic injection molds requiring high wear resistance, thermal stability, and dimensional accuracy. Manufactured by Senlan Precision, these mold cores are produced strictly according to customer drawings and specifications, supporting stable operation in high-cavity and long-cycle injection molding applications.

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Key Features & Technical Advantages

• 1.2344 Hot Work Tool Steel
  Excellent strength retention at elevated temperatures and high resistance to thermal fatigue.

• Precision Heat Treatment
  Controlled hardening for stable hardness distribution and minimized distortion.

• High Dimensional Stability
  Suitable for molds requiring tight tolerances and long production cycles.

• Optimized for Multi-Cavity Tooling
  Designed for consistent cavity balance and repeatable part quality.

• Built-to-Print Manufacturing
  Fully customized based on customer drawings, tolerances, and surface requirements.

Application Fields / Industry Use

• Plastic Bottle & Container Molds
  Core inserts forming internal geometries and functional features.

• Cap, Closure & Dispensing Component Molds
  Mold cores requiring wear resistance and thermal stability.

• Medical & Laboratory Plastic Molds
  Applications demanding repeatability and process consistency.

• High-Output Injection Mold Systems
  Suitable for molds operating under continuous production conditions.

Mold Structure & Design Description

The mold core insert is positioned at the center of the cavity structure, directly defining internal part geometry. Using 1.2344 hardened steel ensures resistance to thermal cycling, pressure loading, and abrasive wear from filled plastics. Design considerations include stress distribution, heat flow, alignment accuracy, and serviceability for high-cavity injection mold layouts.

Manufacturing Capability & CNC Machining

Senlan Precision maintains a precision machining environment equipped with internationally recognized machine tools:

• MAKINO (Japan) high-precision CNC machining centers

• HARDINGE (USA) CNC turning equipment

• Precision grinding, EDM, and fine polishing systems

Technical Capability Highlights

• Machining tolerance capability down to ±0.002 mm

• Controlled heat treatment with dimensional verification

• High repeatability for batch production of mold inserts

• Surface finish optimized for molding performance and demolding stability

Customization & OEM Cooperation Process

All mold core inserts are supplied as OEM / Built-to-Print components:

1. Drawing & Specification Review
   Evaluation of geometry, tolerances, material, and application.

2. Process & Heat Treatment Planning
   Selection of machining sequence and hardening parameters.

3. Precision Machining & Finishing
   CNC milling, turning, grinding, and polishing.

4. Dimensional & Quality Inspection
   Full inspection before delivery.

5. Packaging & Export Shipment
   Protective packing with traceable documentation.

Quality Control & Export Experience

• Incoming raw material verification and traceability

• In-process dimensional inspection

• Final inspection before shipment

• Experience supporting overseas mold manufacturers and tooling integrators

Quality control is focused on long-term mold performance, not short-term appearance.

Related Products

• Mold Cavity Inserts for Injection Molding

• Core Pins for Plastic Mold Tooling

• 1.2344 / H13 Hardened Mold Components

• Multi-Cavity Injection Mold Parts

FAQ – Technical & Purchasing

Q1: Is 1.2344 suitable for high-temperature molding processes?
Yes. 1.2344 offers excellent hot strength and thermal fatigue resistance.

Q2: Do you manufacture only standard mold cores?
No. All products are custom-made based on customer drawings.

Q3: Can tight tolerances be maintained after heat treatment?
Yes. Heat treatment and finishing are controlled to minimize distortion.

Q4: Do you support small batch or prototype tooling?
Yes. Both prototype and production-scale mold components are supported.

Request a Quote

For pricing and technical consultation on 1.2344 Hardened Mold Core Inserts for Injection Molding, please provide your drawings and specifications to Senlan Precision.

Our engineering team will review your application and deliver a stable, precision-driven mold core solution aligned with your tooling requirements.