HPM38 (AISI 420/Stavax) Precision Core Pins | Custom EDM Machined Mold Parts

Product Overview

HPM38 High Precision Core Pins manufactured by Senlan Precision are designed for plastic injection molds requiring excellent corrosion resistance, surface quality, and dimensional stability. Produced under a strict built-to-print model, these mold components are processed with CNC machining and EDM to achieve precise geometry, stable performance, and consistent repeatability in multi-cavity molding applications.

Key Features & Advantages

• HPM38 Mold Steel Material
  Offers balanced corrosion resistance, polishability, and mechanical stability for plastic molding environments.

• EDM Machining Capability
  Enables accurate formation of complex profiles, sharp edges, and fine internal features.

• High Dimensional Precision
  Suitable for mold designs requiring tight tolerances and controlled fit.

• Excellent Surface Quality
  Supports stable plastic flow and reduced mold wear during long production cycles.

• Built-to-Print Manufacturing
  All core pins are produced strictly according to customer drawings and technical specifications.

Applications & Industry Use

• Packaging Mold Systems
  Core pins for bottle, container, and packaging component molds.

• Cap & Closure Molds
  Precision molding parts for threaded and sealing structures.

• Medical Plastic Molding Tools
  Mold components used in medical consumables and injection-molded devices.

• Multi-Cavity Injection Molds
  Core pins designed for consistent performance across high-cavity layouts.

Mold Structure & Design Description

HPM38 core pins act as critical forming elements within injection molds, defining internal features and functional geometries of plastic parts. EDM machining allows accurate control of complex contours, while material stability ensures dimensional consistency under repeated molding cycles.

Manufacturing Capability & CNC Machining

• CNC Turning & Milling
  Precision shaping of core pin profiles and mounting features.

• EDM Machining
  Applied for intricate geometries and high-precision details.

• Precision Grinding
  Control of concentricity, straightness, and surface finish.

• Heat Treatment Control
  Ensures stable hardness and dimensional reliability.

Custom Development / OEM Cooperation Process

1. Drawing & Requirement Review
   Evaluation of geometry, tolerances, and application conditions.

2. Material & Process Selection
   Confirmation of HPM38 steel and suitable machining methods.

3. Precision Manufacturing
   CNC machining, EDM processing, and finishing operations.

4. Quality Inspection
   Dimensional verification and visual inspection.

5. Export Packaging & Delivery
   Secure packing suitable for international shipment.

Quality Control & Export Experience

• ISO 9001 Quality Management System
  Standardized control across all manufacturing stages.

• Dimensional Measurement Equipment
  Verification of critical dimensions and tolerances.

• Inspection Reports Available
  Measurement documentation can be provided upon request.

• International Supply Experience
  Serving mold makers and injection molding manufacturers worldwide.

Related Products (Internal Links)

• Precision Mold Core Pins

• Plastic Mold Core Inserts

• Injection Mold Cavity Components

• EDM Machined Mold Parts

FAQ

Q1: Why is HPM38 suitable for plastic mold core pins?
HPM38 provides good corrosion resistance, polishability, and dimensional stability, making it suitable for plastic molding applications.

Q2: Are these core pins standard parts?
No. All parts are custom manufactured based on customer drawings and specifications.

Q3: What tolerances can be achieved?
Tolerances depend on design requirements and will be controlled according to the drawing.

Q4: Is EDM machining mandatory?
EDM is applied when complex geometry or fine details are required; CNC machining is used for standard features.

Q5: Can inspection reports be provided?
Yes. Dimensional inspection reports are available upon request.

Get a Quote

For HPM38 High Precision Core Pins and Plastic Mold Components, contact Senlan Precision.
Please provide drawings, tolerance requirements, and application details for technical evaluation and quotation.