4-Axis CNC Machined Mold Cores | Custom Precision Injection Inserts

Product Overview

Senlan Precision manufactures stainless steel precision CNC machined parts with integrated washers for plastic injection mould applications. Produced on automatic multi-axis CNC turning and milling equipment, these components are built strictly to customer drawings (Built-to-Print), achieving dimensional tolerances down to ±0.01 mm with stable repeatability for mould assemblies and functional interfaces.

Key Features & Advantages

• Material options: Stainless steel grades (e.g. SUS304 / SUS316 or specified equivalents)

• Tolerance capability: ±0.01 mm on critical dimensions

• Integrated washer design: Improves positioning, load distribution, and assembly stability

• Multi-axis CNC machining: Ensures concentricity and geometric accuracy

• Surface finish control: Machined or polished per drawing requirements

• OEM / Built-to-Print: Fully customized geometry, size, and interface features

Applications / Industry Use

• Injection mould assemblies requiring precise spacing or load distribution

• Bottle cap and closure mould components

• Packaging mould spare parts

• Medical plastic mould tooling where dimensional consistency is critical

Mold Structure & Design Description

These stainless steel CNC machined parts are typically used as functional or positioning elements within injection moulds. The integrated washer feature helps control axial location, reduce assembly tolerance stack-up, and improve contact stability between mould plates or inserts. Design parameters are defined by customer drawings, including outer diameter, thickness, flatness, and concentricity requirements.

Manufacturing Capability & CNC Machining

• Equipment: High-precision CNC machines from MAKINO (Japan) and HARDINGE (USA)

• Processes: Automatic CNC turning, multi-axis milling, precision drilling, finishing

• Dimensional control: In-process inspection for diameter, thickness, and flatness

• Surface quality: Consistent finish suitable for mould assembly use

• Repeatability: Stable batch-to-batch consistency for serial production

Custom Development / OEM Workflow

1. Drawing review – Dimensions, tolerances, material, washer geometry

2. Process planning – Turning and milling sequence definition

3. Precision machining – Multi-axis CNC production

4. Inspection & verification – Dimensional and visual checks

5. Packaging & delivery – Export-ready handling

Quality Control & Export Experience

• Incoming material inspection and traceability

• In-process dimensional measurement

• Final inspection records upon request

• Long-term export experience supporting mould manufacturers and OEM customers

Related Products

• Stainless steel mould core inserts

• CNC turning mould components

• Precision spacers and positioning parts

• Built-to-print mould spare parts

FAQ (Technical & Purchasing)

Q1: Are these standard parts or custom made?
All parts are custom manufactured strictly according to customer drawings and specifications.

Q2: What tolerances can be achieved?
Typical tolerance is ±0.01 mm; tighter tolerances can be evaluated based on design and material.

Q3: Can the washer be integrated or supplied separately?
Both integrated washer designs and separate washer configurations are supported.

Q4: What industries are these parts mainly used in?
They are commonly used in packaging and medical injection mould applications.

Get a Quote

Send your drawings, material specifications, tolerance requirements, and order quantity. Senlan Precision will provide a technical review and quotation for stainless steel precision CNC machined parts with washer for injection mould applications.