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CNC MACHINING • 4TH-AXIS ROTARY TRUNNIONS

3-Axis & 4-Axis CNC Machining

High-Efficiency Prismatic Milling & 4th-Axis Rotary Indexing for Batch Component Production.

Cost-effective precision machining for prismatic parts, brackets, chassis, and cylindrical contours. Our 4th-axis rotary indexers enable multi-sided machining in fewer setups, accelerating production runs while slashing part unit costs.

±0.01mm Standard Tolerance
High-Speed Automated Tombstones
Cost-Effective Mid to High Volume

Industrial Manufacturing for 3-Axis & 4-Axis CNC Machining

JYH Prototype combines 100+ precision machining centers, automated inspection, and in-depth metallurgy expertise to deliver components that meet the strictest international engineering tolerances and quality standards.

4th-Axis Rotary

Continuous rotation and precision indexing for complex angled holes and helical grooves.

Tombstone Fixturing

Multi-part hydraulic tombstone clamping maximizing cycle time efficiency.

High Material Removal

High-torque spindles for rapid roughing of solid billet blocks into light structures.

Automated Deburring

CNC chamfering and tumble deburring for smooth, burr-free edges ready for assembly.

Engineering Focus: 3-Axis & 4-Axis CNC Machining

Four critical manufacturing challenges solved by our Shenzhen factory engineering team through advanced machinery, smart toolpaths, and verified metrology protocols.

4th-Axis Rotary Table Continuous Machining & Indexing 500 × 500 HD Natural

4th-Axis Rotary Table Continuous Machining & Indexing

Equipped with heavy-duty rotary trunnions, our 4-axis centers machine parts on 4 sides in one operation, guaranteeing exact angular alignment between intersecting features.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
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High-Velocity Face Milling & Rapid Billet Roughing 500 × 500 HD Natural

High-Velocity Face Milling & Rapid Billet Roughing

Utilizing indexable face mills with positive rake inserts, we achieve rapid stock removal rates on structural aluminum plates while maintaining flatness within 0.02mm.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
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Multi-Part Tombstone Fixturing for High Volume Batches 500 × 500 HD Natural

Multi-Part Tombstone Fixturing for High Volume Batches

Horizontal machining centers (HMCs) with tombstone fixtures enable loading 16 to 32 parts simultaneously, drastically reducing cycle times and part unit costs.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
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Rigid Tapping, Deep Hole Pecks & Precision Reaming 500 × 500 HD Natural

Rigid Tapping, Deep Hole Pecks & Precision Reaming

Synchronized rigid tapping and multi-step peck drilling allow reliable threading from M1.2 up to M36 in stainless steel and titanium alloys without tap breakage.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
Request Quotation for Similar Geometry

Capabilities & Quality Protocols

Every part manufactured at JYH Prototype adheres to international engineering standards and rigorous metrology protocols.

Technical & Machine Capabilities

  • Machining envelopes up to 1,500mm × 800mm × 600mm
  • 4th-axis rotary indexers with 0.001° angular positioning resolution
  • Over 50 dedicated 3-axis and 4-axis production milling centers
  • In-house modular tooling and custom soft-jaw clamping systems

Metrology & Quality Assurance

  • Zeiss PRISMO 3D CMM Metrology with scanning resolution down to 0.9µm
  • Keyence Optical Non-Contact Flash Measuring System for micro-features
  • XRF Spectrometry for raw metal alloy composition verification
  • AS9102 Form 1, Form 2, and Form 3 First Article Inspection (FAI) packages

Ready to Prototype or Scale 3-Axis & 4-Axis CNC Machining?

Upload your 3D CAD models (.STEP, .IGES, .SLDPRT, .X_T) or 2D technical drawings (.PDF, .DWG) to receive an interactive quote with comprehensive Design for Manufacturability (DFM) feedback in under 2 hours.

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Frequently Asked Questions

Common engineering questions regarding tolerances, material traceability, and turnaround for 3-Axis & 4-Axis CNC Machining.

When is 4-axis machining preferred over 3-axis? +
4-axis machining is ideal when features exist on multiple faces of a cylindrical or prismatic part. It rotates the part around an axis, eliminating manual re-fixturing and preserving datum accuracy.
What is the cost difference between 3-axis and 5-axis machining? +
3-axis and 4-axis machining are generally 30% to 50% more economical than 5-axis milling for simpler prismatic components, making them the preferred choice for batch production.
What batch sizes do you handle for 3/4-axis milling? +
We handle everything from single functional prototypes (1–5 pcs) to pilot bridge runs (50–500 pcs) and high-volume serial production (1,000–50,000+ pcs).
Do you provide certificate of conformance with shipments? +
Yes. Every production batch includes a Certificate of Conformance (CoC), raw material mill test reports, and dimensional inspection sheets.
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