Custom Precision CNC Machined Frames for Structural Applications

High-precision CNC Machined Frames for machinery, automation, robotics, and industrial equipment. Custom structural frames with tight tolerances, excellent flatness, and superior rigidity. Prototypes to small-batch production.
Aluminum CNC machined heat sink with fins for electronic cooling applications.
  • Precision machining for complex custom parts
  • Flexible finishes and material options
  • Low-volume to production-ready support
  • Fast quoting and dependable lead times
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At 6CNC, we specialize in manufacturing high-rigidity CNC Machined Frames that serve as the structural foundation for machines, equipment, and precision systems. From simple base frames to complex multi-axis support structures, we deliver accurate, stable, and ready-to-assemble frames with tight tolerances and consistent quality.

  • Tolerance capability: ±0.002 mm
  • Key features: High flatness, parallelism, and structural rigidity
  • Production range: 1 – 500+ pcs
  • Lead time: 4–10 days for prototypes

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Why Choose 6CNC for CNC Machined Frames

CNC Machined Frames from solid billet offer superior strength, vibration damping, and dimensional stability compared to welded or sheet metal frames. We excel at producing large-format precision frames with:

  • Large machining envelopes for oversized frames
  • Excellent flatness and parallelism across wide surfaces
  • Precise hole patterns, slots, and mounting features
  • Integrated ribs, bosses, and weight-reduction pockets
  • Multi-setup or 5-axis machining for complex geometries

Technical Advantages:

  • 5-Axis and large-travel CNC milling for complex frame structures
  • Precision surface grinding for superior flatness (up to 0.01 mm/m)
  • Stress-relief processes to maintain long-term stability
  • Threaded holes, dowel pin holes, and alignment features with high accuracy
  • Professional DFM feedback to optimize strength-to-weight ratio

Typical Applications of CNC Machined Frames

  • Industrial Automation Equipment
  • Robotics and Motion Control Systems
  • CNC Machine Bases and Gantries
  • Medical Device Structural Frames
  • Laser and Optical Equipment Frames
  • Semiconductor and Test Equipment
  • Automotive Assembly Fixtures
  • Custom Machinery and Prototype Platforms

Selected Products


Common Materials for CNC Machined Frames

  • Aluminum Alloys (6061-T6, 7075-T6) – Lightweight with excellent strength and machinability
  • Stainless Steel (304, 316L) – High corrosion resistance and durability
  • Carbon Steel – Cost-effective for heavy-duty structural frames
  • Other options: Titanium, Tool Steel (upon request)

All materials supplied with full traceability and material certificates (CoC).


Quality Assurance

  • ZEISS CMM inspection for large surfaces and critical dimensions
  • Flatness, parallelism, and GD&T reports
  • Surface roughness and hardness testing
  • 100% visual and functional verification
  • Cleanroom or protective packaging available

Case Studies

A high-precision CNC milling machine for custom metal parts manufacturing.

Case 1: Aluminum Automation Equipment Frame

  • Material: 6061-T6 Aluminum
  • Size: 1200mm × 800mm
  • Tolerance: ±0.005 mm on mounting surfaces and hole positions
  • Features: Integrated ribs, precise dowel holes, and weight-reduction pockets
  • Result: 35 pcs delivered in 12 days with excellent flatness. Customer achieved faster assembly and improved machine stability.

Case 2: Stainless Steel Medical Device Frame

  • Material: 316L Stainless Steel
  • Tolerance: ±0.003 mm on critical alignment
  • features Result: Delivered 25 pcs for clinical equipment with full documentation and perfect fit.
High-precision industrial band saw for metal cutting and fabrication.

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