Precision CNC Machining for Plastic Molds | Mirror Polished Small Metal Parts

Product Overview

Senlan Precision specializes in polished surface CNC machined small metal parts for plastic injection mould applications. These mould components are manufactured with tight tolerances and controlled surface finishes to ensure dimensional stability, smooth demolding, and long service life. All parts are produced under a built-to-print manufacturing model for precision injection mould systems.

Key Features & Advantages

• High-Precision CNC Machining
  Manufactured using multi-axis CNC milling and turning to ensure stable dimensional accuracy.

• Polished Surface Finish
  Controlled polishing processes achieve smooth surfaces suitable for high-quality injection moulding applications.

• Small & Complex Geometry Capability
  Ideal for small metal mould parts with fine features and tight structural requirements.

• Built-to-Print / OEM Manufacturing
  Fully customized production according to customer drawings, specifications, and tolerance requirements.

• Stable Performance in Multi-Cavity Moulds
  Designed to maintain consistency across high-cavity injection mould systems.

Applications / Industry Use

• Packaging & Closure Moulds
  Used in mould systems for bottle caps, closures, and packaging components requiring smooth surfaces.

• Medical Consumables Moulding
  Suitable for mould parts used in the production of medical disposables and precision plastic components.

• High-Precision Plastic Injection Moulds
  Applied in mould assemblies where surface quality and dimensional repeatability are critical.

Mould Structure & Design Description

• Component Function
  These CNC machined metal parts serve as functional mould elements such as inserts, core-related components, or auxiliary precision parts.

• Surface Quality Control
  Polishing processes are selected based on mould requirements to reduce friction and improve plastic flow behavior.

• Fit & Assembly Accuracy
  Tight control of parallelism, concentricity, and flatness ensures reliable installation and long-term mould stability.

• Material Selection
  Machined from qualified tool steels or stainless steels based on mould operating conditions.

Manufacturing Capability & CNC Machining

• CNC Milling & Turning
  High-speed CNC equipment supports complex geometries and fine features.

• Grinding & Polishing Processes
  Internal and external grinding combined with manual or automated polishing for surface finish control.

• EDM Support for Complex Features
  EDM machining available for deep cavities or sharp internal profiles when required.

• Small Batch to Stable Volume Production
  Flexible production capacity for prototype, trial, and long-term supply projects.

Custom Development / OEM Cooperation Process

1. Drawing & Requirement Review
   Analysis of 2D/3D drawings, tolerances, surface finish, and functional requirements.

2. Process Planning
   Machining and polishing process selection based on part geometry and application.

3. Precision Manufacturing
   CNC machining, grinding, polishing, and intermediate inspection.

4. Final Inspection & Delivery
   Dimensional verification and export-ready packaging.

Quality Control & Export Experience

• Dimensional Inspection
  CMM, micrometers, and precision gauges ensure conformity to drawings.

• Surface Finish Verification
  Visual inspection and surface roughness control based on project requirements.

• Traceable Manufacturing Records
  Inspection reports and material information available upon request.

• International Supply Experience
  Stable export experience supporting global mould manufacturers.

Related Products (Internal Links)

• Precision Mold Core Pins

• Custom Mold Inserts

• Multi-Cavity Mould Components

• CNC Machined Injection Mould Parts

Frequently Asked Questions (FAQ)

Q1: Can you manufacture parts strictly according to our drawings?
Yes. All parts are produced under a built-to-print model based on customer-provided drawings.

Q2: What surface finish levels can you achieve?
Surface finish is customized according to mould requirements, including polished finishes suitable for visible plastic parts.

Q3: Are small and complex parts suitable for your machining capability?
Yes. We specialize in small, high-precision metal mould components with complex geometries.

Q4: Can inspection reports be provided?
Inspection reports can be provided upon request, including key dimensional measurements.

Request a Quote

Please share your technical drawings, material requirements, surface finish specifications, and target quantities.
Senlan Precision will provide a detailed quotation and manufacturing lead time based on your mould project needs.