Hansheng Automation (Dongguan) Co., Ltd. is one of the most experienced manufacturers and suppliers of custom parts on demand in China. If you're going to wholesale bulk cost-effective custom parts on demand made in China, welcome to get pricelist and quotation from our factory. Also, customized service and OEM&ODM service are available.
Hansheng Automation provides on-demand custom CNC machining for engineers and procurement teams who need precision parts fast. Whether you are running a prototype, bridging a supply gap, or fulfilling a low-volume production order, we deliver machined parts to ±0.002mm tolerance with full dimensional inspection, starting from a single piece.
Supported materials include aluminum alloy (6061/7075), stainless steel (304/316L), titanium alloy (TC4), brass, PEEK, and PMMA. All orders include a free DFM analysis and a detailed quote within 24 hours of drawing submission.
Why Choose Hansheng for On-Demand Custom Parts
Our on-demand service is built specifically for low-volume and time-sensitive requirements. Here is what that means in practice:
MOQ 5 pieces
We machine from 1 piece. There are no setup surcharges designed to discourage small runs, and no pressure to over-order to hit a price break.
Tolerance Held to ±0.002mm on Critical Features
We run 5-axis CNC milling and turn-milling compound machining in-house
For features with H7/h6 fits, bearing bores, or sealing surfaces, we machine to the intermediate pre-treatment dimension and verify against final tolerance using our CMM before shipment.
Free DFM Analysis - Not Just a Quote
When you submit a drawing, our engineers review it for manufacturability before
pricing. If your current design has features that will drive up cost or risk dimensional non-conformance - such as deep narrow slots, conflicting tolerances, or surface finish specs that require additional post-processing - we flag them and suggest alternatives. This step is included at no charge on every order.
Full Documentation as Standard
Every shipment includes a Full Dimension Inspection Report and material certification. For aerospace and medical customers requiring traceability, this documentation is available in structured format upon request.
| CNC Machining Factory | 3-axis milling, 4-axis milling, 5-axis milling, CNC machining, turn-milling compound machining, slow wire walking, and EDM services |
| Aerospace Components Manufacturer | Vacuum gas quenching, vacuum oil quenching, aluminum heat treating, gas nitriding, low-temperature treatment, stress relief, tempering, and aging treatment |
| Aerospace Parts Manufacturing | Anodizing, chemical conversion coating, passivation, electroplating, painting, and powder coating |
| Metal | Aluminum, Stainless steel, Brass, Bronze, Copper, Cast iron, Titanium |
| Plastic | ABS, PMMA, PC, PPS, Delrin, PEEK |
Equipped with cutting-edge machining equipment and technology, alongside a seasoned team of engineers, we are poised to address the processing requirements of diverse and intricate parts. Whether you require high-precision components, complex geometric shapes, or specialized material processing, we are committed to delivering solutions that exceed your expectations.
Moreover, we excel in crafting bespoke medical and automotive parts tailored to suit the requirements of the industrial sector. Our extensive range of services encompasses design, development, and production, guaranteeing customized approaches to fulfill your project demands. Should you seek trustworthy and seasoned partners, do not hesitate to reach out to us anytime.
Our On-Demand CNC Parts Process
Send us your CAD, STEP, or SolidWorks file along with material, tolerance, and surface finish requirements. Response time: within 4 business hours.
Our engineers review your drawing for manufacturability and return a full quote - covering material, machining, surface treatment, and inspection costs - with no hidden fees. If we identify design features that can be optimized to reduce cost or improve dimensional consistency, we include those recommendations at this stage.
Your part is produced on 5-axis CNC milling or turn-milling equipment with real-time dimensional monitoring throughout the run. The completed sample is inspected on our CMM coordinate measuring machine. You receive a Full Dimension Inspection Report and material certification before approving production. Standard sample lead time: 3–5 business days depending on geometry and material.
Upon sample approval, full production begins. A 10% random inspection is conducted per batch, focused on critical tolerance features. You receive real-time production updates and can request interim inspection data at any stage.
We support SF Express and Deppon Logistics (delivery time can be specified). Quality inspection reports and certification documents will be included with the shipment.
Customized materials and precision standards
| Material Type | Specific Model / Material | Applicable Scenarios |
| Aluminum Alloy | 6061 / 7075 | Lightweight structural parts (aerospace frames, electronic enclosures) |
| Stainless Steel | 304 / 316L | Corrosion-resistant parts (medical instruments, outdoor equipment) |
| Titanium Alloy | TC4 | High-strength load-bearing parts (aero-engine components, implants) |
| Brass | H62 | Conductive parts (electronic connectors, terminals) |
| ABS | Acrylonitrile Butadiene Styrene | Low-cost enclosures (automotive interiors, home appliance housings) |
| PEEK | Polyether Ether Ketone | High-temperature resistant parts (medical devices, industrial tooling) |
| PMMA | Polymethyl Methacrylate (Acrylic) | Transparent parts (observation windows, display covers) |
Precision and surface treatment standards
Precision Standards: General turning and milling accuracy ±0.01mm, precision grinding accuracy ±0.005mm, precision turning and milling accuracy ±0.005mm, and super-mirror finishing accuracy ±0.002mm.
Surface Treatment:
Metals: Anodizing (natural/black), electroplating (nickel/chrome), passivation (stainless steel), powder coating/painting;
Plastics: Grinding and polishing, silk screen printing, laser engraving;
Testing Equipment: CMM, optical spectrum analyzer, and roughness tester to ensure every part meets standards.
FAQ
Q: What is your minimum order quantity for custom CNC parts?
A: There is no minimum order quantity. We machine from a single piece. Whether you need one prototype or a low-volume run of 50 parts, the process and inspection standard are the same.
Q: How quickly can I receive a quote after submitting my drawings?
A: We return a full quote including DFM analysis within 24 hours of receiving your CAD or STEP file. For straightforward geometries, turnaround is often within 4 business hours.
Q: What file formats do you accept?
A: We accept CAD, STEP, SolidWorks (.sldprt), IGES, and DXF formats. If you only have a physical sample or a sketch, contact us directly - we can work from reference dimensions in many cases.
Q: Can you handle urgent orders? What is the fastest turnaround you offer?
A: Yes. Expedited production with a 3-day turnaround is available for selected materials and part geometries. Confirm availability at the quoting stage and we will schedule accordingly.
Q: Do you provide material certifications with every order?
A: Yes. Material certification and a Full Dimension Inspection Report are included as standard with every shipment, regardless of order size.
How do you control dimensional accuracy on small-batch orders?
Every part - including single-piece prototype orders - is inspected on our CMM coordinate measuring machine before shipment. We do not apply a reduced inspection standard to small orders.
Q: Can you machine parts that require both tight tolerances and surface treatment, such as anodizing or passivation?
A: Yes. For parts requiring post-machining surface treatment, we calculate the coating growth or penetration allowance before machining and adjust the pre-treatment dimensions accordingly. This prevents dimensional non-conformance after finishing - a step that is often skipped when machining and finishing are handled by separate vendors.
Q: What industries do you serve with your on-demand service?
A: Our on-demand custom parts service is most commonly used in aerospace (structural and non-flight-critical components), medical device development, automotive R&D, semiconductor equipment, and industrial automation. We support both prototype validation and low-volume bridge production.
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