DLC Coated Mold Cavity Inserts & Sleeves | Low-Friction Precision Assembly Set

Product Overview

DLC coated mold cavity inserts and sleeve assembly sets manufactured by Senlan Precision are designed for injection molding applications requiring low friction, high wear resistance, and stable dimensional accuracy. The Diamond-Like Carbon (DLC) coating significantly improves surface performance, making these components suitable for high-cycle molds and demanding plastic molding environments.

Key Features & Technical Advantages

• DLC Surface Coating
  Provides low friction coefficient, improved wear resistance, and reduced adhesion during plastic molding cycles.

• High Dimensional Stability
  Precision CNC machining and grinding ensure consistent geometry and accurate assembly fit.

• Improved Mold Service Life
  DLC coating helps reduce abrasion, galling, and surface degradation in repeated molding operations.

• Cavity & Sleeve Assembly Compatibility
  Designed as matched sets to ensure proper alignment, smooth operation, and reliable mold performance.

• Built-to-Print / OEM Manufacturing
  All components are manufactured strictly according to customer drawings and technical specifications.

Application Scenarios / Industry Applications

• Plastic injection molding cavity systems

• Packaging mold tooling

• Bottle cap and closure molds

• Medical packaging and syringe molds

• High-cycle and multi-cavity mold assemblies

These DLC coated cavity insert and sleeve sets are widely used where surface durability and molding consistency are critical.

Mold Structure & Design Explanation

Mold cavity inserts and sleeves form the primary shaping and guiding elements within injection molds.
When assembled as matched sets, they ensure:

• Accurate cavity geometry

• Stable alignment during mold opening and closing

• Reduced friction between moving components

• Consistent molded part quality across production cycles

DLC coating enhances surface performance without significantly altering dimensional tolerances, making it suitable for precision mold components.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision utilizes internationally recognized high-precision equipment, including:

• Japan MAKINO CNC machining centers

• USA HARDINGE CNC turning and precision grinding machines

Core manufacturing processes include:

• CNC milling and turning

• Precision grinding

• Controlled heat treatment (as required)

• DLC surface coating

• Final dimensional and surface inspection

Typical machining capability:

• Dimensional tolerance: ±0.01 mm (or per drawing)

• Surface finish and coating thickness controlled per application requirements

Custom Development / OEM Cooperation Process

1. Drawing and technical specification review

2. Material and coating requirement confirmation

3. Precision CNC machining and grinding

4. DLC coating and post-coating inspection

5. Assembly fit verification

6. Final quality inspection and export packaging

This process supports new mold projects, mold refurbishment, and replacement cavity components.

Quality Control & Export Experience

• ISO9001 quality management system

• Incoming material inspection and traceability

• In-process dimensional and coating checks

• Final inspection before shipment

• Stable export experience supporting international mold makers and OEM manufacturers

Inspection reports and material certificates are available upon request.

Related Products

• Precision Mold Core Inserts

• Injection Mold Cavities

• Ejector Pins and Sleeves

• Mold Sliders and Wear Components

• Custom CNC Machined Mold Parts

Frequently Asked Questions (FAQ)

Q1: Are these cavity inserts standard parts?
A: No. All cavity inserts and sleeve sets are custom-manufactured according to customer drawings.

Q2: What benefits does DLC coating provide?
A: DLC coating reduces friction, improves wear resistance, and helps extend mold service life.

Q3: Can you supply cavity inserts and sleeves as matched sets?
A: Yes. Components can be supplied as assembly-matched sets to ensure proper fit and alignment.

Q4: What industries commonly use these components?
A: Packaging molds, medical packaging molds, and other precision plastic injection molding applications.

Request a Quotation

For DLC coated mold cavity inserts, sleeve assembly sets, or custom plastic injection mold components, please contact Senlan Precision with your drawings and technical requirements.
Our engineering team will provide a professional technical review and quotation.