Nitrided Surface Mold Components | Precision Square Head Core Pins (HRC 65-70)

Product Overview

Nitriding surface plastic mold components with square head precision core pins are widely applied in injection moulds requiring enhanced wear resistance, dimensional stability, and extended service life. Senlan Precision manufactures custom square head core pins with controlled nitriding surface treatment to improve surface hardness while maintaining a tough core. All components are produced strictly according to customer drawings and application requirements.

Key Features & Advantages

• Nitriding surface treatment for improved wear resistance

• Square head design for accurate positioning and torque resistance

• Enhanced surface hardness with minimal dimensional distortion

• Stable performance in high-cycle injection moulding

• Precision CNC machining for tight tolerances

• Suitable for multi-cavity and high-output mould systems

• Custom / OEM manufacturing based on Built-to-Print specifications

Applications / Industry Use

• Plastic bottle and packaging injection moulds

• Bottle cap, closure, and sealing component moulds

• Multi-cavity moulds requiring durable core pins

• Injection mould tooling with frequent opening and closing cycles

• Precision mould components for packaging and medical plastic parts

Mould Structure & Design Description

Square head precision core pins are typically used in mould structures where anti-rotation capability and precise axial positioning are required. The square head geometry improves assembly stability and prevents slippage during mould operation. Nitriding surface treatment increases surface hardness and wear resistance, reducing abrasion and extending the operational lifespan of the core pin under repeated moulding cycles.

Manufacturing Capability & CNC Machining

Senlan Precision is equipped with advanced CNC machining and finishing systems to ensure dimensional accuracy and surface consistency.

Manufacturing capabilities include:

• High-precision CNC turning and milling

• Precision grinding for core pin geometry

• Controlled nitriding surface treatment

• EDM machining for complex features

• Full-process dimensional and surface inspection

Key machining equipment includes Japanese MAKINO and American HARDINGE precision CNC machines, ensuring repeatability and reliability for mould components.

Custom Development / OEM Cooperation Process

1. Customer provides drawings or 3D models

2. Engineering evaluation of structure, tolerance, and surface treatment

3. CNC machining and controlled surface processing

4. In-process quality inspection

5. Final dimensional and surface verification

6. Secure packaging and export delivery

All projects are handled under a Built-to-Print OEM / ODM cooperation model.

Quality Control & Export Experience

• Incoming raw material inspection

• In-process quality control at key machining stages

• Dimensional inspection using calibrated measuring equipment

• Surface condition verification after nitriding

• Experience supplying precision mould components to international customers

Quality management follows standardized industrial manufacturing procedures to ensure consistency and traceability.

Related Products

• Precision mould core pins and ejector pins

• Thread cores for plastic cap moulds

• Nitrided mould wear components

• Multi-cavity mould inserts

• Custom CNC machined mould parts

FAQ – Technical & Purchasing

Q1: Is the nitriding depth adjustable?
Yes. Nitriding depth and surface hardness can be specified according to drawing or technical requirements.

Q2: Are square head core pins standard items?
No. All square head core pins are custom-manufactured based on customer-provided drawings.

Q3: Does nitriding affect dimensional accuracy?
Nitriding is selected for its low distortion characteristics, suitable for precision mould components.

Q4: Can you manufacture small or large batch quantities?
Yes. Both prototype and production batch quantities are supported.

Request a Quote

To receive a technical quotation, please provide drawings, material specifications, nitriding requirements, tolerances, and application details.
Our engineering team will review your request and respond accordingly.