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Precision CNC Milling Services

Professional CNC milling with 15+ years of manufacturing excellence. We deliver high-precision custom machined parts in both metal and plastic materials with tolerances as tight as ±0.0005 inches.

 3, 4 & 5-Axis Capabilities
 ±0.0005″ Tolerances
 ISO Certified
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Custom CNC Machined Acetal Delrin Parts

Advanced CNC Milling Capabilities

Our state-of-the-art CNC milling equipment delivers precision machining solutions for complex geometries and tight tolerances across a wide range of materials.

 

3-Axis Milling

Standard 3-axis CNC milling for most common machining operations with excellent precision and surface finish quality.

 

4-Axis Milling

Rotary axis machining for cylindrical parts and complex contours, reducing setup time and improving accuracy.

 

5-Axis Milling

Complete 5-axis simultaneous machining for the most complex geometries and aerospace-grade precision requirements.

Why Choose Our CNC Milling?

  •  
    High Precision Tolerances: Achieve tolerances as tight as ±0.0005 inches (±0.0127mm) for critical dimensions
  •  
    Material Versatility: Machine over 50+ metal and plastic materials including exotic alloys
  •  
    Complex Geometries: 5-axis capabilities for intricate parts and undercuts in single setup
  •  
    Surface Finish Excellence: Superior surface finishes from 125 Ra to mirror polish
  •  
    Scalable Production: From prototypes to high-volume production runs
Custom CNC Milled Plastic Components

CNC Milling Materials

We machine a comprehensive range of materials to meet your specific application requirements, from common alloys to exotic specialty materials.

Metal Materials

Aluminum Copper Brass Bronze Titanium Stainless Steel Tool Steel Cast Iron Nitinol Kovar Inconel

Plastic Materials

Polypropylene Acrylic ABS Acetal/Delrin HDPE Nylon PEEK PEI (Ultem) PET Polystyrene PVC

Don’t see your material listed? We can source custom materials to meet your specifications.

Contact us for custom material sourcing

Precision Tolerances & Specifications

Our advanced CNC milling equipment maintains tight tolerances and high-quality standards across all manufacturing processes.

Specification Standard Capability
Standard Tolerances ±0.005″ (±0.13mm)
Tight Tolerances ±0.0005″ (±0.0127mm)
Maximum Part Size 80″ x 48″ x 24″ (2032 x 1219 x 610 mm)
Minimum Feature Size 0.020″ (0.50mm)
Surface Finish 125 Ra or better (as-machined)
Angular Tolerances ±0.5 degrees
Thread Capabilities Standard and custom threads available

CNC Milling Applications

Our precision CNC milling services serve diverse industries with applications ranging from rapid prototyping to high-volume production.

 

Aerospace Components

Precision machined parts for aircraft engines, structural components, and critical aerospace applications requiring tight tolerances.

 

Automotive Parts

Engine components, transmission parts, brackets, and custom automotive hardware with superior quality and precision.

 

Medical Devices

Biocompatible medical components, surgical instruments, and implantable devices meeting strict medical standards.

 

Electronics Housing

Precision machined enclosures, heat sinks, and electronic component housings with excellent dimensional accuracy.

 

Custom Tooling

Jigs, fixtures, molds, and specialized tooling for manufacturing processes and quality control applications.

 

Rapid Prototyping

Fast turnaround prototyping services for product development, testing, and design validation across all industries.

From Prototype to Production

Whether you need a single prototype or thousands of production parts, our scalable CNC milling capabilities ensure consistent quality and precision at every volume level. Our experienced team works with you from initial design review through final delivery.

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Frequently Asked Questions

Common questions about our CNC milling services and capabilities

What tolerances can you achieve with CNC milling?

Our standard CNC milling tolerances are ±0.005 inches (±0.13mm). For critical applications, we can achieve tight tolerances as low as ±0.0005 inches (±0.0127mm) depending on part geometry, material, and feature requirements. We also maintain excellent angular tolerances of ±0.5 degrees for precision applications.

What materials can you machine with CNC milling?

We machine over 50+ materials including aluminum alloys, stainless steel, titanium, brass, copper, tool steels, and exotic alloys like Inconel and Kovar. For plastics, we work with ABS, Acetal/Delrin, PEEK, Nylon, Acrylic, Polycarbonate, and many others. If you don’t see your material listed, we can source custom materials to meet your specifications.

What’s the difference between 3-axis, 4-axis, and 5-axis milling?

3-axis milling moves the cutting tool along X, Y, and Z linear axes, suitable for most standard machining operations. 4-axis adds a rotary axis (typically A-axis), allowing cylindrical machining and reducing setups. 5-axis milling provides complete access to the workpiece with simultaneous 5-axis movement, enabling complex geometries, undercuts, and compound angles in a single setup.

What file formats do you accept for CNC milling quotes?

We accept all standard CAD file formats including STEP, IGES, SolidWorks, AutoCAD, Inventor, and PDF technical drawings. For the most accurate quotes, 3D CAD files (STEP or IGES) are preferred as they contain complete geometric information. We can also work from 2D drawings with detailed specifications.

Do you provide surface finishing services?

Yes, we offer various surface finishing options including as-machined (125 Ra), bead blasting, anodizing (Type II and Type III), powder coating, and custom finishes. Our standard as-machined finish provides excellent surface quality, and we can achieve mirror-like finishes for optical applications or decorative requirements.

What quality certifications do you maintain?

Rapidaccu maintains ISO 9001:2015 certification for quality management systems. We provide comprehensive inspection reports, material certifications, and maintain full traceability for all machined parts. Our quality control processes include coordinate measuring machines (CMM), optical comparators, and certified measuring equipment to ensure dimensional accuracy.

Ready to Start Your CNC Milling Project?

Get your precision machined parts from Rapidaccu. Our experienced team is ready to deliver high-quality CNC milling services for your project requirements.

Contact Information

 

Manufacturing Facility

Rongli Industrial Park, Dalang, Longhua District, Shenzhen, China

 
 

Experience

15+ Years in Precision CNC Machining

 

Certifications

ISO 9001:2015 Certified Quality Management

Why Choose Rapidaccu?

  •  15+ years manufacturing experience
  •  Advanced 3, 4, and 5-axis CNC equipment
  •  Tolerances as tight as ±0.0005 inches
  •  50+ materials available
  •  ISO 9001:2015 certified quality
  •  Global shipping capabilities

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