Custom Parts for Drones/Medical Devices/Aerospace | High-Efficiency 4-Axis CNC Milling Services

1. Service Overview
Our 4-axis CNC machining service builds upon the traditional three linear axes (X, Y, Z) by adding a fourth rotary axis (A-axis) that rotates around the X-axis. This enables automatic indexing and rotation of the workpiece, allowing for precise milling, drilling, and tapping on multiple sides or even continuous curved surfaces all in one clamping. This eliminates the cumulative errors from multiple re-fixturing, significantly improving the part’s overall accuracy and consistency.

2. Core Advantages & Features

• High Efficiency: Multiple operations are completed in a single setup, drastically reducing fixture setup time, machine idle time, and overall lead time.

• Superior Accuracy: Avoids datum errors caused by repeated re-fixturing, ensuring dimensional precision and perfect fit for complex geometries.

• Complex Geometry Capability: Easily handles intricate structures like polyhedrons, cams, helical grooves, and 3D reliefs that are impossible with traditional 3-axis machines.

• Cost Reduction: Reduces the number of fixtures, setup times, and manual intervention, lowering the per-part cost overall, especially suitable for small batch production.

• Excellent Surface Finish: Continuous tool-to-workpiece movement achieves smoother, more consistent surface finishes.

3. Technical Specifications

• Machining Capacity: Can handle bar stock or blanks up to Ø200mm x 300mm.

• Rotary Axis (A-axis): Capable of ±360° continuous rotation with a minimum indexing accuracy of 0.001°.

• Machining Accuracy: Positioning accuracy up to ±0.01mm, best surface roughness up to Ra 0.8μm.

• Supported Materials:

  • Metals: Various aluminum alloys, stainless steel, carbon steel, brass, copper, titanium alloys, etc.

  • Plastics: ABS, PC, POM (Acetal), Nylon, PEEK, Bakelite, etc.

• Post-Processing: We offer various surface treatment options including sandblasting, anodizing, plating, painting, laser etching for a one-stop service.

4. Applicable Industries & Use Cases

• Aerospace: UAV frames, model engine parts, small brackets, connectors.

• Medical Devices: Instrument housings, surgical instrument handles, implant prototypes, testing equipment components.

• Automotive Industry: Prototype parts, custom jigs, inspection fixtures, functional samples.

• Industrial Automation: Robotic arm joints, custom timing pulleys, irregular connecting blocks, jigs and fixtures.

• Consumer Electronics: High-end product enclosures, camera module components, smart home parts.

5. Our Workflow

1. Consultation & Quote: You provide 2D/3D drawings (STEP, IGS, X_T formats preferred) and technical requirements.

2. Technical Review: Our engineers conduct a DFM (Design for Manufacturability) analysis and provide professional optimization suggestions.

3. Order Confirmation: Both parties confirm price, lead time, and place the order.

4. Production & Machining: Programming, material preparation, 4-axis CNC precision machining, QC inspection.

5. Surface Treatment (Optional): Apply finishing processes as required.

6. Shipping & Delivery: All inspected parts are properly packaged and shipped on time.

Choosing us means you get more than just a 4-axis machine; you gain a professional partner dedicated to solving your complex manufacturing challenges and adding value to your products! Contact us now for a free technical assessment and a fast quote!