Precision Plastic Mold Inserts | Custom Threaded Cores & Spare Parts

Product Overview

Plastic mold inserts and threaded core components are critical spare parts used in injection molding tools to form internal threads and functional geometries. These components are manufactured with high dimensional accuracy and surface integrity to ensure stable molding performance, reliable demolding, and long service life in multi-cavity and high-volume injection molds.

Key Features & Technical Advantages

• Precision plastic mold inserts and threaded core components

• Designed for internal thread forming and functional mold areas

• Stable dimensional accuracy for repeated molding cycles

• Compatible with multi-cavity injection mold systems

• Replaceable mold spare parts to reduce tooling downtime

• Fully customized manufacturing based on customer drawings (Built-to-Print)

Applications & Industry Use

• Plastic bottle and container injection molds

• Bottle cap and closure molds with internal threads

• Medical plastic component molds

• High-output packaging and industrial plastic tooling

Mold Structure & Design Description

Threaded mold cores and inserts are installed in critical forming positions of injection molds to create internal threads or functional details. Their geometry, surface condition, and tolerance directly influence demolding stability and part consistency. Insert designs are customized to match mold structures, thread profiles, and material flow characteristics defined in customer tooling drawings.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision produces plastic mold inserts and threaded cores using controlled machining and finishing processes:

• High-precision CNC machining centers from MAKINO

• Precision turning and milling equipment from HARDINGE

• Precision grinding, EDM, and surface finishing processes

• Tight control of concentricity, straightness, and thread geometry

All components are manufactured strictly according to customer-provided drawings and technical requirements.

Custom Development & OEM Cooperation Process

1. Technical drawing and application review

2. Material and process confirmation

3. CNC machining and precision finishing

4. Dimensional inspection and functional verification

5. Cleaning, identification, and export-standard packaging

OEM and non-standard mold spare parts are produced under full Built-to-Print control.

Quality Control & Export Experience

• Incoming material inspection and traceability

• In-process dimensional measurement

• Final inspection based on drawings and tolerance requirements

• Experience supplying custom mold components to international customers

• Inspection reports available upon request

Related Products

• Mold cavity inserts

• Thread core inserts for closure molds

• Core pins and ejector pins

• Custom non-standard mold spare parts

FAQ (Technical & Purchasing)

Q1: Can threaded mold cores be customized for different thread standards?
A: Yes. Thread profiles and dimensions are manufactured strictly according to customer drawings.

Q2: Are these inserts suitable for multi-cavity molds?
A: Yes. They are commonly used in high-cavity injection mold systems.

Q3: Do you supply replacement mold spare parts?
A: Yes. Replacement and refurbishment orders are supported.

Q4: What tolerances can be achieved?
A: Tolerances are controlled according to drawing requirements and machining feasibility.

Get a Quote

Please provide your drawings or technical specifications to Senlan Precision for a quotation on plastic mold inserts, threaded mold cores, and injection mold spare parts.