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Chiheng

Turn Milling

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Turn Milling

Our CNC Turning Services

Chiheng Hardware specializes in precision CNC turning services and advanced lathe services. Our comprehensive facility provides comprehensive CNC lathe turning solutions for clients worldwide.
We can machine cylindrical workpieces up to 320mm in diameter and 200mm in length using our computer-controlled lathes. (Maximum dimensions, actual machining size depends on material. Longer material can accommodate larger diameters.)
Whether it's a bar or tube, we can skillfully perform operations such as drilling, slotting, tapping, and knurling to transform cylindrical materials into the desired shapes according to your drawings. Our turning services department operates 24/7, equipped with high-precision CNC lathes capable of machining workpieces up to 320mm in diameter and 200mm in length. Through our online CNC machining platform, we offer instant quotes and rapid turnaround times for all your precision turning needs.

Live Tolling for Complex Parts

At Chiheng, our advanced live tooling capabilities represent the cutting edge of CNC manufacturing technology. Our live tooling system, integrated with multi-tasking machines, delivers:

  • •
    High-Speed Milling Performance
    - Spindle speeds up to 12,000 RPM
    - Rigid coupling design with < 3μm runout
    - Powered by 5.5kW servo motors for heavy-duty cutting
  • •
    Precision Multi-Axis Operations
    - C-axis positioning accuracy of ±2 arc seconds
    - Y-axis travel of 120mm for off-center machining
    - B-axis tilting capability (±120°) for complex angular features
  • •
    Advanced Tooling Configuration
    - 24-station turret with 12 live tool positions
    - BMT65 quick-change tooling system
    - Through-tool coolant capability up to 1000 PSI
    - Automatic tool monitoring with wear detection
  • •
    Expanded capabilities for creating complex geometries and features
  • •
    Our live tooling expertise enables single-setup manufacturing of complex components, including:
    - Aerospace hydraulic manifolds with multiple intersecting channels
    - Medical device components requiring precise thread milling
    - Automotive transmission parts with helical gear features
    - Oil & gas components with complex cross-holes and patterns
Typical cycle time reduction: 40-60% compared to conventional multi-setup processes Setup time savings: Up to 75% for complex parts Position accuracy: ±0.0002" (0.005mm)

Multi-Process Machining Comparison: CNC Milling vs Turning vs Turn-milling

Turn-mill machining is particularly well-suited for producing intricate components that require both turning and milling operations. This technology enables manufacturers to create complex parts with high precision and consistency. The ability to complete multiple operations in a single setup not only improves accuracy but also reduces the potential for errors associated with part transfers between different machines.

Characteristic Turn-Milling Milling Turning
Workpiece Motion Rotates Stationary Rotates
Tool Motion Rotates and moves linearly Rotates Stationary or moves linearly
Primary Shapes Complex, cylindrical with milled features Complex, non-cylindrical Cylindrical, axially symmetrical
Setup Efficiency Single setup for multiple operations Multiple setups may be required Single setup for cylindrical parts
Production Speed High, combines operations Moderate to high High for cylindrical parts
Typical Applications Complex automotive and aerospace components Aerospace components, molds, fixtures Shafts, bushings, pistons

Turn-milling offers several advantages over traditional milling and turning processes. It reduces setup times and part handling, improving accuracy through single-setup machining. This integrated approach allows for the production of complex parts with both turned and milled features in one operation, significantly increasing efficiency. Additionally, turn-milling machines can achieve higher cutting speeds and feed rates compared to conventional turning, resulting in improved surface finishes and potentially longer tool life.

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CNC Machining Tolerances, Materials & Surface Finishes
  • Chiheng processes tolerances
    Tolerances
    Our commitment to quality is evident in our standard tolerance of 0.005mm. This level of accuracy is ideal for applications requiring tight tolerances, such as medical devices, automotive components, and scientific instruments.
    View Tolerances and Standards
  • Chiheng surface finishing close-up shot
    Metal & Plastic Materials for Trun-Mill
    Tailor your parts to perfection with Chiheng's diverse material selection. Our comprehensive material library offers over 50 options, allowing you to select the ideal material for your specific application. From wear-resistant plastics to high-strength metals, we have the versatility to create custom parts that meet your unique performance needs.
    View Materials
  • Chiheng materials fabrication selection
    Professional Surface Finishing & Quality Control
    Enhance your custom turned parts with comprehensive finishing services including: • Precision anodizing • Industrial bead blasting • Custom surface treatments All processes backed by rigorous quality assurance protocols and ISO certification.
    View Surface Treatment

Why choose Chiheng?

Fast Quotes

Get your quote in hours. Just upload your CAD files. Convenient turning online platform for instant pricing.

Reduced Waiting Time

Custom lathe work with quick turnaround times. Experience a 50% reduction in your waiting period for quicker turnarounds.

Advanced In-house Equipment

Our turning service center features 100+ professional equipment and tools for mill turn machining and turning online solutions.

Precision Tolerance

We deliver precision with a tolerance of ±0.0002 inches (5μm). Advanced turn milling solutions for complex parts .


ISO 9001 Certified

ISO 9001 Certified

Quality you can trust, backed by ISO 9001 certification with comprehensive material certific

Chiheng's cooperative partners

Rapid Production & Quick-Turn Manufacturing

• 24-hour material selection and manufacturing analysis
• Fast-track production parts service available
• Comprehensive quality assurance on all rapid prototypes
• 10-day standard production with expedited options


Chiheng's cooperative partners

Repeat Business

Growing stronger with every project. Our 50-60% repeat business rate is a testament to our ongoing commitment to improvement and customer satisfaction.


cnc quote procedure

Our quotation process

•Real-time pricing based on material selection, quantity, and lead time
•Integration with CAD software for seamless file uploads
•Customizable options for finishes, tolerances, and special features
•Rapid turnaround times, with parts deliverable in as little as 5-14 days




Chiheng Multitasking Center

Our state-of-the-art mill-turn centers represent the pinnacle of precision manufacturing technology, featuring advanced 5-axis simultaneous machining capabilities. These high-performance CNC systems, equipped with cutting-edge FANUC controls, can achieve tolerances as tight as ±0.0002 inches (±0.005mm). Our multi-tasking machines combine turning speeds up to 4,000 RPM with powerful milling functions, enabling complete part production in a single setup. This integrated approach not only reduces cycle times by up to 60% but also ensures exceptional surface finishes of Ra 0.4μm or better. With a robust tool capacity of 120+ positions and automated part handling systems, we guarantee consistent quality and rapid turnaround for even the most complex components.


Equipment Quantity Brand Max Part Size
3-Axis CNC 50 FANUC-A-D14MIA 1500 x 800MM
4-Axis CNC 10 - D600 x L1200MM
CNC Lathe 35 Tsugami D300 x L1200MM
Lathe-Mill Center 3 Tsugami D300 x L1200MM
CNC Swiss Type Automatic Lathe 5 Tsugami D30 x L500MM

ISO-Certified Quality Management System


Our turn milling and lathe service operations undergo rigorous quality control. Each turning service project is monitored through advanced measurement systems, ensuring precision in custom lathe work and mill turn machining applications :
• Comprehensive design guidelines
• Advanced quality assurance protocols
• Complete documentation and testing procedures
• ISO certification for all production processes


Chiheng quality control process

Chiheng integrated machining quality control tools

Chiheng's metrology laboratory is equipped with cutting-edge quality control instruments certified to ISO/IEC 17025 standards.
Our precision measurement capabilities include:
• Zeiss Coordinate Measuring Machine (CMM) with accuracy of 0.1μm, enabling 3D dimensional inspection
• Mitutoyo digital height gauges (accuracy ±0.001mm) for precise vertical measurements
• Advanced surface roughness testers capable of measuring Ra values down to 0.01μm
• Digital micrometers and calipers (accuracy ±0.001mm) from leading brands like Mitutoyo and Tesa
• Thread gauge systems for both metric and imperial specifications
• Optical comparators with 50X magnification for profile inspection
• Rockwell hardness testers for material verification

manufacturing part 1 manufacturing part 2 manufacturing part 3 manufacturing part 4
manufacturing part 5 manufacturing part 6 manufacturing part 7 manufacturing part 8

Our quality assurance is powered by a team of certified quality engineers (CQE) and CMM programmers who utilize advanced measurement software for detailed inspection reports. Every component undergoes a rigorous First Article Inspection (FAI) process, with regular in-process checks following AS9100D aerospace standards. The quality control team maintains NIST-traceable calibration records for all measuring equipment, ensuring reliable accuracy. Our state-of-the-art climate-controlled inspection room maintains constant temperature (20±0.5°C) and humidity (50±5%) levels for optimal measurement consistency.

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