Precision CNC Machining for Construction Machinery & Industrial Automation Components

With over two decades of experience in high-precision CNC machining, our factory delivers ultra-reliable, custom-machined components for construction machinery and industrial automation systems worldwide. These sectors demand robust, high-precision parts that can endure extreme mechanical stress, fluctuating temperatures, and continuous operation—all while maintaining tight tolerances and consistent performance.

⚙️ Machining Challenges in the Industry

1. Large-Scale Structural Complexity
   Components like slewing bearings, drive shafts, and hydraulic cylinder housings often exceed 1 meter in size, with complex geometries and deep internal cavities. Achieving ±0.01mm tolerance on large parts requires advanced multi-axis machining and thermal compensation strategies.
2. High-Stress Surface Integrity
   Gears, couplings, and automated drive parts must resist cyclic loading, vibration, and wear. This requires both high-hardness materials and flawless surface finishes (Ra ≤ 0.4 μm), especially on bearing or sealing surfaces.
3. Functional Integration
   Automation components often combine mechanical, hydraulic, and electronic interfaces, requiring precise multi-step machining and tight perpendicularity/parallelism control (≤0.005mm) across multiple faces.

🧱 Material Solutions for Durability & Performance

• High-Tensile Alloy Steels (e.g. 42CrMo4, AISI 4140)
  Used in shafts, pins, and drive parts for high fatigue resistance and hardenability via quenching and tempering.
• Heat-Resistant Stainless Steel (e.g. SUS630, 17-4PH)
  Applied in automation end effectors or sensor housings where corrosion resistance and strength are both critical.
• Aluminum Alloys (7075-T6, 6061-T6)
  Lightweight and thermally conductive for servo actuator brackets and robotic arms, often hard anodized post-machining.
• Bronze & POM (Engineering Plastics)
  Used for wear-resistant bushings or linear guide interfaces in automated assemblies.

🛠️ Key Process Control & Manufacturing Technologies

• 5-Axis Machining Centers (Makino, DMG MORI)
  Capable of complex multi-face machining and continuous contouring for intricate automation components.
• Double Column CNC Gantry Mills
  Ensures flatness and parallelism over large castings or base plates, critical for machine tool foundations.
• Precision Cylindrical & Surface Grinding (STUDER, Okamoto)
  Achieves micron-level roundness and surface finish on shafts, rollers, and cam followers.
• In-House Heat Treatment
  Controlled quenching and tempering to reach hardness ranges (HRC 38–45) while maintaining dimensional stability.
• 100% Inspection via Zeiss CMM & Roundness Tester
  Guaranteeing form and position tolerances down to 0.002mm and 3D inspection reports for each shipment.

🌍 Global Case Studies

• Germany – Robotic Welding Line Component Supplier
  Delivered ±0.005mm tolerance end effectors and tooling arms machined from anodized 7075-T6 aluminum, enabling 20% faster cycle time in automotive welding lines.
• USA – Earthmoving Equipment OEM
  Supplied hardened 42CrMo4 swing bearings and pin bores with Ra0.2μm finish, improving fatigue life by over 40% in harsh mining environments.
• Japan – Factory Automation Integrator
  Manufactured precision gear housings and spindle supports with tight coaxiality requirements (<0.01mm) for high-speed pick-and-place systems.