Nitrided Core Inserts | Custom Tooling for Flip-Top Cosmetic Caps

Product Overview

The customized nitriding core insert is a precision mold component developed for flip-top cosmetic cap injection tooling. Through controlled heat treatment and precision machining, the insert achieves enhanced surface hardness and wear resistance while maintaining dimensional stability. It is designed to support high-cycle production where reliable demolding and long service life are required.

Key Features & Technical Advantages

• Surface nitriding treatment for improved wear resistance

• Stable core geometry for flip-top cap molding structures

• Enhanced surface hardness without core brittleness

• Consistent dimensional accuracy under repeated molding cycles

• Suitable for complex cap hinge and snap-fit designs

• Fully customized and manufactured to customer drawings (OEM / Built-to-Print)

Applications & Industry Use

• Injection molds for flip-top cosmetic caps

• Plastic closure and dispensing cap molds

• Packaging-related precision injection tooling

• Molds requiring extended service life and reduced maintenance

Mold Structure & Design Description

This nitriding core insert functions as a critical forming element within flip-top cap molds, often interacting with hinge, locking, or rotating structures. The nitriding layer improves surface durability in high-friction areas while preserving internal toughness. All geometries, tolerances, and assembly interfaces are manufactured strictly according to customer-provided drawings to ensure accurate mold integration.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision produces nitrided core inserts using advanced CNC machining combined with controlled heat treatment processes. Our manufacturing resources include:

• High-precision machining centers from MAKINO

• CNC turning and milling equipment from HARDINGE

• Dedicated nitriding and post-treatment dimensional correction processes

Critical dimensions and surface conditions are monitored throughout production.

Custom Development & OEM Cooperation Process

1. Review of drawings and technical requirements

2. Material and nitriding specification confirmation

3. Process planning and manufacturability evaluation

4. CNC machining and heat treatment

5. Dimensional and surface hardness inspection

6. Final approval and export packaging

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

Quality Control & Export Experience

• Incoming material verification and traceability

• In-process dimensional inspection

• Nitrided layer depth and hardness control

• Final inspection before shipment

• Extensive experience supporting overseas mold manufacturers

Inspection records and quality documentation are available upon request.

Related Products

• Thread core inserts for plastic injection molds

• Flip-cap mold core and cavity components

• Nitrided wear-resistant mold inserts

• Custom non-standard precision mold parts

FAQ (Technical & Purchasing)

Q1: Is this nitriding core insert a standard product?
A: No. All inserts are custom-manufactured based on customer drawings and mold requirements.

Q2: What is the benefit of nitriding treatment for core inserts?
A: Nitriding increases surface hardness and wear resistance while maintaining internal toughness, extending mold service life.

Q3: Can this insert be used in complex flip-top cap molds?
A: Yes. It is suitable for molds with hinge, snap-fit, or rotating structures.

Q4: Do you support long-term OEM mold component supply?
A: Yes. Senlan Precision specializes in long-term OEM supply of custom mold components.

Get a Quote

Please provide your drawings or technical specifications to Senlan Precision for a professional evaluation and quotation on custom nitrided core inserts for flip-top cosmetic cap injection molds.