Optical Grade Mold Core Inserts | Mirror-Finish Bores for Opto-Electronics

Product Overview

High Precision Mold Cores with mirror-finished holes are critical functional components used in injection moulds that require exceptional surface integrity and dimensional stability. Senlan Precision manufactures custom mold cores strictly according to customer drawings, achieving mirror-grade internal hole finishes and tight tolerance control to support opto-electronics, packaging, and medical moulding applications where accuracy and repeatability are essential.

Key Features & Advantages

• Built-to-Print manufacturing based on customer drawings or specifications

• Mirror-finished internal holes for controlled surface quality

• High concentricity and straightness for precision mould alignment

• Stable performance in multi-cavity and high-cycle mould systems

• Controlled roughness suitable for optical or functional surfaces

• Material selection aligned with mould life and processing conditions

Applications / Industry Use

• Opto-electronics product moulds requiring mirror hole structures

• Precision packaging moulds with high surface quality requirements

• Medical consumables and disposable device moulds

• Multi-cavity injection mould systems

• High-precision core and cavity assemblies

Mould Structure & Design Description

Mirror hole mold cores are typically installed as functional cores or inserts within injection moulds. The internal hole geometry directly affects part quality, alignment, and functional performance. Core design focuses on axial alignment, surface integrity, and fit tolerance with surrounding cavity components. Geometry, hole depth, and finish level are defined strictly by customer drawings to ensure compatibility with the complete mould structure.

Manufacturing Capability & CNC Machining

Senlan Precision produces high-precision mold cores using advanced CNC machining, EDM, and polishing processes to achieve consistent dimensional accuracy and mirror-grade hole finishes.

Manufacturing capabilities include:

• CNC turning for concentricity and diameter control

• CNC milling for external profiles and positioning features

• Precision EDM for deep or complex internal holes

• Fine grinding and polishing for mirror surface finishes

• Full in-process and final inspection

Production is supported by high-accuracy equipment, including MAKINO machining centers and HARDINGE precision turning machines.

Custom Development / OEM Cooperation Process

1. Customer submits drawings, specifications, or samples

2. Engineering review of tolerances, surface requirements, and materials

3. Confirmation of Built-to-Print manufacturing scope

4. Precision CNC machining, EDM, and polishing

5. Dimensional and surface inspection

6. Export packaging and shipment

All projects are handled as custom / OEM / Built-to-Print manufacturing.

Quality Control & Export Experience

• Raw material inspection before production

• In-process dimensional verification

• Surface roughness and concentricity inspection

• Final inspection prior to shipment

• Stable export supply for international mould manufacturers

Related Products

• Precision mould cores and inserts

• Mirror-polished cavity components

• High-accuracy mold core pins

• EDM-processed mould parts

• Multi-cavity mould spare components

FAQ – Technical & Purchasing

Q1: Can mirror hole surface roughness be specified by the customer?
Yes. Surface roughness and finishing requirements are manufactured strictly according to customer drawings.

Q2: Are these mold cores suitable for multi-cavity moulds?
Yes. They are designed for stable use in multi-cavity and high-output injection mould systems.

Q3: Do you provide standard sizes from stock?
No. Senlan Precision focuses exclusively on custom, Built-to-Print mould components.

Q4: What inspection methods are used for mirror holes?
Dimensional inspection, concentricity checks, and surface roughness measurement are applied based on project requirements.

Request a Quote

Please provide drawings or technical specifications to receive a quotation for High Precision Mold Core Mirror Hole for Opto-Electronics Products Moulds.
Our engineering team supports custom mould component manufacturing for packaging, medical, and opto-electronics injection moulding applications.