ISO 9001 Corrosion-Resistant Mold Pins | Precision Stainless Steel Punch Pins

Product Overview

Corrosion resistant metal die punch pins are critical functional components used in plastic injection molds where moisture, aggressive resins, or cleaning chemicals are present. Manufactured by Senlan Precision, these punch pins are produced according to customer drawings, ensuring stable dimensional accuracy, controlled hardness, and long-term corrosion resistance under continuous molding conditions.

Key Features & Advantages

• Corrosion-Resistant Materials
  Suitable for humid environments, medical-grade plastics, and chemically aggressive resins.

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

• Stable Dimensional Accuracy
  Precision machining and grinding ensure consistent punch alignment and repeatability.

• ISO 9001 Approved Production
  Standardized process control, traceability, and documented quality assurance.

• Long Service Life
  Optimized heat treatment and surface condition reduce wear and corrosion-related failure.

Application Scenarios / Industry Use

• Plastic injection mold punch systems

• Packaging mold tooling for caps and closures

• Medical and laboratory plastic molds

• Multi-cavity mold assemblies

• Molds operating in high-humidity or frequent cleaning environments

Mold Structure & Design Description

Metal die punch pins are typically installed as functional forming or cutting elements within injection molds. The corrosion-resistant design minimizes surface degradation caused by moisture, cleaning agents, or resin additives. Proper hardness balance and straightness control ensure smooth axial movement, reduced galling, and reliable mold operation over extended production cycles.

Manufacturing Capability & CNC Machining

Senlan Precision maintains controlled machining and inspection capabilities to support high-precision mold components:

• High-precision CNC machining centers from MAKINO

• CNC turning and milling equipment from HARDINGE

• Precision grinding for diameter, straightness, and surface finish

• Optional heat treatment and surface conditioning

• Full dimensional inspection before shipment

These capabilities support prototype development, low-volume orders, and serial production.

Custom Development / OEM Cooperation Process

1. Drawing & Specification Review
   Material, tolerance, hardness, and application confirmation

2. Engineering Evaluation
   Machining route and corrosion-resistance strategy definition

3. Precision Manufacturing
   CNC machining, grinding, and heat treatment

4. Quality Inspection
   Dimensional measurement and functional verification

5. Export Packaging & Delivery
   Industrial packaging suitable for international shipment

All projects follow a Built-to-Print / OEM-only manufacturing model.

Quality Control & Export Experience

• ISO 9001 quality management system

• Incoming material verification

• In-process dimensional control

• Final inspection and documentation

• Stable export supply to Europe and North America

Related Products

• Precision Core Pins for Injection Molds

• Mold Ejector Pins and Sleeves

• Corrosion-Resistant Mold Inserts

• Multi-Cavity Mold Components

• CNC Machined Plastic Mold Parts

Frequently Asked Questions (FAQ)

Q1: Are these punch pins standard parts or custom-made?
All punch pins are manufactured strictly according to customer drawings.

Q2: What materials are available for corrosion resistance?
Material selection depends on application requirements and can include stainless or corrosion-resistant tool steels.

Q3: Are these suitable for medical mold applications?
Yes, they are commonly used in medical and laboratory plastic mold tooling.

Q4: Can surface treatment or hardness be customized?
Yes, hardness and surface condition are defined based on customer specifications.

Get a Quote

Please provide your technical drawings, material requirements, tolerance specifications, and expected quantities.
Our engineering team will evaluate your project and provide a technical quotation with lead time.