0.005mm Concentricity Core Inserts | Hardened Tooling for Laundry Liquid Preform Molds

Product Overview

The high concentricity hardened core insert is a critical molding component designed for laundry liquid preform molds requiring stable wall thickness, consistent weight, and reliable long-term performance. Manufactured under strict dimensional control, this core insert ensures precise alignment and repeatable molding results in high-cavity, high-output injection molding applications. Built-to-print customization is fully supported.

Key Features & Technical Advantages

• High concentricity control to ensure uniform preform wall thickness

• Hardened steel construction for extended service life

• Precision CNC machining and grinding for stable dimensional accuracy

• Optimized surface finish to reduce friction and demolding resistance

• Suitable for continuous high-cycle production environments

• Custom geometry and tolerance manufactured strictly per drawings

Applications & Industry Use

• Laundry liquid bottle preform molds

• Household and daily chemical packaging molds

• Multi-cavity preform injection molding systems

• High-speed plastic packaging production lines

Mold Structure & Design Description

This core insert is engineered to integrate seamlessly with preform cavity systems. The design emphasizes axial alignment and concentricity between the core and cavity, minimizing eccentric wear and improving molding stability. Heat treatment and finishing processes are selected based on operating temperature, resin type, and cycle time requirements.

Manufacturing Capability & CNC Machining

Senlan Precision operates advanced CNC machining centers and grinding equipment, including high-precision machines from MAKINO (Japan) and HARDINGE (USA).
Key capabilities include:

• CNC milling, turning, and precision grinding

• Machining accuracy up to ±0.002 mm

• Controlled heat treatment and hardness verification

• Stable batch-to-batch dimensional consistency

Customization & OEM Cooperation Process

We specialize in Built-to-Print manufacturing, supporting OEM and custom mold component development:

1. Technical drawing or sample review

2. Material and tolerance confirmation

3. Process planning and manufacturability evaluation

4. Precision machining and inspection

5. Final validation and delivery

No standard off-the-shelf limitations—each part is produced to customer specifications.

Quality Control & Export Experience

• Incoming material certification and traceability

• In-process dimensional inspection and concentricity checks

• Final inspection using precision measuring instruments

• ISO-based quality management procedures

• Extensive export experience supporting international mold makers and packaging manufacturers

Related Products

• Preform mold cavity inserts

• Core pins for packaging molds

• Neck finish inserts for bottle preforms

• High-cavity injection mold components

FAQ – Technical & Purchasing

Q1: What concentricity levels can be achieved?
Concentricity is manufactured according to drawing requirements, commonly within micron-level tolerances for preform applications.

Q2: Can you match existing mold components?
Yes. We support reverse engineering based on samples or legacy drawings.

Q3: What materials are available?
Tool steels and stainless grades are selectable based on application, resin type, and service life requirements.

Q4: Is this suitable for high-cavity molds?
Yes. The design and machining process are optimized for multi-cavity and high-output molds.

Get a Quote

For technical drawings, tolerance requirements, or project discussions, please contact Senlan Precision.
Our engineering team will provide a professional evaluation and quotation based on your mold application.