Hansheng Automation (Dongguan) Co., Ltd. is one of the most experienced manufacturers and suppliers of precision cnc machining service in China. If you're going to wholesale bulk cost-effective precision cnc machining service made in China, welcome to get pricelist and quotation from our factory. Also, customized service and OEM&ODM service are available.
Products Description
Hansheng Automation provides industry-leading custom CNC machining services for prototypes and full-scale production. Leveraging advanced multi-axis milling, turning, and mirror-finish capabilities, we deliver complex, high-reliability components engineered to meet the stringent standards of high-speed automation, packaging systems, and tobacco machinery.
Micro-Tolerance Accuracy (±0.005mm)
State-of-the-art 3, 4, and 5-axis CNC machining, mill-turn equipment, and Kashifuji gear hobbing for ultra-demanding specs.
Fast Prototyping & 24h Response
Send your 3D/2D CAD files today and receive a detailed DFM (Design for Manufacturability) review and competitive quote within 24 hours.
Complex Geometry & Material Versatility
Expertise in aluminum, stainless steel, titanium, brass, and engineering plastics (PEEK, POM), as well as precision casting + CNC secondary machining.
Core CNC Machining Capabilities & Specifications
| Capability / Specification | Technical Detail & Standard Scope |
| Machining Processes |
• 3-Axis, 4-Axis, and 5-Axis Simultaneous CNC Milling • High-Precision Mill-Turn / CNC Turning • High-Speed Milling & Ultra-Mirror Grinding • Kashifuji Gear Hobbing (High-precision gear cutting) • Wire EDM (Electrical Discharge Machining) & Laser Cutting • Investment Casting / Sand Casting + CNC Secondary Machining |
| Machining Accuracy & Tolerances |
• Precision CNC Turning & Milling: Tight tolerances down to ±0.005 mm (General machining scope: ±0.005 mm to ±0.01 mm) • Gear Precision: Up to ISO/DIN Grade 5 • Surface Roughness: Ra 0.4μm – Ra 0.8μm (Mirror Finish available) |
| Max Working Envelope |
• 5-Axis Milling: Up to 1,200 mm × 800 mm × 600 mm • CNC Turning / Mill-Turn: Max Diameter 500 mm × Length 1,000 mm • (Custom larger dimensions available upon engineering review) |
| Surface Treatment & Finishing |
• Anodizing: Type II & Type III Hard Anodizing (Clear, Black, Color) • Plating: Nickel, Zinc, Gold, Silver, Chrome, Electroless Nickel • Polishing & Finishing: Mirror Polishing, Bead Blasting, Passivation, Electropolishing • Coating & Heat Treatment: Powder Coating, PVD, Nitriding, Carburizing, Hardening |
| Quality Inspection Equipment |
• CMM (Coordinate Measuring Machine): Zeiss/Hexagon High-Accuracy CMM • Optical & Measuring Tools: 2D Optical Projector, Altimeter, Micro Hardness Tester • Surface Profile: Roughness Tester, Spectrometer (Material Composition Verification) • Reports Provided: Full CMM Inspection Report, FAIR (First Article Inspection Report), Material Test Certificates (MTC) |
| Order Volume & Lead Time |
• MOQ: 1 Piece (Flexibility for Prototyping) • Prototyping Lead Time: 3 – 7 Business Days • Low-to-Mid Volume Production: 10 – 15 Business Days • Quote Turnaround: Within 24 Hours with DFM Feedback |
| Accepted CAD Formats | STEP (.step, .stp), IGES (.igs), SolidWorks (.sldprt), AutoCAD (.dwg, .dxf), Parasolid (.x_t), PDF (with 2D geometric tolerances/GD&T) |
Spotlight: Extreme-Precision Machining for High-Speed Machinery
High-speed packaging and automated machinery operate under continuous, high-frequency stress. Components in these systems don't just need tight tolerances-they require long-term dimensional stability, fatigue resistance, and smooth kinematic fit.
Using our experience with demanding packaging and tobacco machinery parts as an example, here is how Hansheng Automation addresses real-world machining and production challenges:
Practical Engineering Challenges
Consistent Tight Tolerances (±0.005mm to ±0.01mm)
High-speed reciprocating parts require strict dimensional control (typically within ±0.005mm to ±0.01mm) to ensure smooth fitting, minimize backlash, and prevent premature wear during 24/7 continuous operation.
Complex Profiles & Transmission Motion
Components often feature complex cam profiles, irregular 3D contours, and precise gear teeth that demand multi-axis milling and specialized tooth cutting to maintain uniform power transmission.
Machining Raw Castings (Casting + CNC)
Secondary CNC machining on sand-cast or investment-cast blanks requires managing uneven machining allowances, internal material stress, and maintaining datum reference alignment across complex cast housings.
Material Fatigue & Wear Resistance
Parts face severe friction and dynamic loading, demanding precise heat treatment, stress-relieving, and optimal surface finishes to avoid fatigue cracking over time.
Hansheng's Pragmatic Solutions
Specialized Gear Hobbing & Profile Milling
Equipped with Japanese Kashifuji gear hobbing machines and multi-axis CNC milling centers, we machine smooth gear tooth profiles and complex cams, ensuring low vibration and low-noise operation.
01
Stress-Relief & Thermal Control
For critical cast components and complex structural parts, we implement proper stress-relieving heat treatments between roughing and finishing passes to prevent warping and post-machining distortion.
02
Integrated Process Control (Casting to CNC Finishing)
We handle the complete workflow-from controlled investment/sand casting to precision CNC secondary turning, milling, and surface treatment-giving you a single responsible supplier for part fit and quality.
03
Rigorous In-Process Inspection
Every critical dimension is verified using optical projectors, height gages, and CMM inspection, ensuring parts meet your 2D engineering drawings before shipment.
04
The same manufacturing discipline, fixture design expertise, and quality control we apply to packaging machinery are at work for all our customers. Whether you need custom components for automation lines, medical equipment, automotive test rigs, or general industrial machinery, Hansheng delivers precise, reliable parts built to your exact drawing specs.
Commonly used CNC machining equipment
There are five kinds of CNC machining equipment commonly used in our factory, which are five-axis CNC machine tools, turn-mill compound machine tools, high-speed milling machines, wire cutting, and laser cutting machines. The following compares the functions and features of each of these devices.
|
Device type |
Core features |
Accuracy metrics |
Fields of application |
|
Five-axis machining center |
Complex surface machining (impeller/mold cavity) |
The positioning accuracy ± 0.003mm |
Aerospace, automotive engines |
|
Mill-turn machines |
Turning + milling is completed in one clamping |
C-axis positioning accuracy ± 1 arc second |
New energy battery shells, precision shafts |
|
High-speed milling machine |
Efficient cutting of aluminum alloy (wall thickness ≤3mm) |
Cutting speed5000mm/min |
3C product shell and heat sink |
|
Wire EDM |
Precision machining of high-hardness materials (hardened steel/cemented carbide) |
Surface roughnessRa≤0.2μm |
Precision molds, gears |
|
Laser cutting machine |
Non-contact sheet cutting (carbon steel≤20mm) |
The width of the slit ≤ 0.1mm |
Sheet metal structural parts, decorative panels |
Material selection
CNC machining can be selected for different application scenarios of a variety of materials, common materials are aluminum alloy, stainless steel, titanium alloy, copper alloy and engineering plastics, etc., and then from the characteristics of these materials detailed analysis, to help you better determine which CNC machining materials need to be used in your project.
|
material |
Commonly used models |
Density (g/cm³) |
Tensile Strength (MPa) |
Thermal conductivity (W/m·K) |
Typical Applications |
advantage |
limitations |
|
Aluminum alloy |
6061-T6, 7075-T6, 5052-H32 |
2.6-2.8 |
240-570 |
120-200 |
Aerospace structural parts, automotive brackets |
Lightweight (density ≈ 1/3 of steel), high specific strength |
Poor corrosion resistance (anodizing required) |
|
stainless steel |
304, 316L, 17-4PH |
7.9-8.0 |
505-1300 |
15-25 |
Medical devices, chemical valves |
Corrosion resistant (316L chloride ion corrosion resistant) |
Significant work hardening (30% higher tool loss) |
|
Titanium alloy |
Ti6Al4V, Ti-3Al-2.5V |
4.4-4.5 |
895-1000 |
6-7 |
Aviation fasteners, artificial joints |
Biocompatible, high temperature resistance (≤450°C) |
Poor thermal conductivity (prone to cutting heat build-up) |
|
Copper alloys |
H62 brass, C110 copper |
8.4-8.9 |
330-350 |
120-400 |
Electrical connectors, radiators |
Excellent electrical and thermal conductivity (copper conductivity ≥ 58MS/m) |
Easy to oxidize (requires surface coating protection) |
|
Engineering plastics |
PEEK, PC, ABS |
1.1-1.4 |
60-100 |
0.2-0.5 |
Semiconductor fixtures, insulating parts |
Chemical resistance (PEEK resistance to strong acids and alkalis) |
High coefficient of thermal expansion (processing requires cooling and temperature control) |
FAQ
Q: What is the highest machining precision and tolerance you can achieve?
A: For high-precision turned and milled components, we routinely achieve tolerances down to ±0.005 mm (5 microns) depending on the part geometry, material, and thermal stability requirements. Our general machining tolerance for standard precision parts ranges between ±0.005 mm and ±0.01 mm. Surface finishes typically range from Ra 0.4 μm to Ra 0.8 μm, with finer mirror grinding/polishing down to Ra 0.2 μm available for critical bearing surfaces or sealing zones.
Q: What CAD file formats do you accept, and how quickly can I get a quote?
A: We accept all major 3D and 2D CAD file formats, including STEP (.step, .stp), IGES (.igs), SolidWorks (.sldprt), AutoCAD (.dwg, .dxf), and PDF (please attach PDF with 2D drawings showing geometric tolerances/GD&T).
Once you submit your drawings and specifications, our engineering team will provide a comprehensive price quotation and lead-time estimate within 24 hours.
Q: Do you offer free Design for Manufacturability (DFM) feedback before production?
A: Yes, absolutely. Every RFQ submitted to Hansheng undergoes a complimentary DFM evaluation by our experienced process engineers. Before cutting metal, we review your drawings to identify potential machining bottlenecks, tool accessibility constraints, unviable corner radii, or overly tight tolerances that drive up costs unnecessarily.
Q: Do you provide after-sales support if parts wear or precision?
A: Yes. We offer a two-month warranty on CNC machined parts. If wear or precision deviation occurs during the warranty period due to non-human factors, we will repair or replace them free of charge. For long-term cooperation, we also provide regular component inspections and maintenance guidance to ensure the continued stable operation of your tobacco packaging machine.
Q: Can your casting process produce large structural components for tobacco packaging machines? What are the maximum dimensions and tolerances?
A: Yes. We have sand casting, lost foam casting, and gravity casting processes, and can produce large castings with a maximum size of 3800 × 1500 × 1200 mm (such as the frames and bases of tobacco packaging machines). Regarding tolerance control, we have a free tolerance of ±1 mm and a tolerance of ±0.03 mm for specified critical dimensions. The casting surface can be directly connected to CNC precision milling, reducing secondary machining costs.
Hot Tags: precision cnc machining service, China precision cnc machining service manufacturers, suppliers, factory, cnc machining with tight tolerances, cnc machining for drum sander tools, cnc machining for power transmission parts, cnc machining for jigsawing tools, cnc machining for shaft parts, cnc machining for valve parts
