13 YEARS
CNC Machining
Manufacturer
52 Machines
CNC Machines
100000+
Machined Parts
96%
On Time Delivery
ISO
9001:2015 Certified 14001:2015 Certified
Rapid CNC prototype machining for custom metal and plastic parts. From design validation and functional testing to low-volume production, YuanYi help bring your ideas to life with speed, precision, and reliable quality.
CNC Machining
Manufacturer
CNC Machines
Machined Parts
On Time Delivery
9001:2015 Certified 14001:2015 Certified
During the product development process, prototype parts are typically used to validate design structures, test assembly results, and evaluate product performance. Compared to mass production via tooling, prototype machining can transform CAD drawings into physical parts in a shorter timeframe, helping engineers identify design issues more quickly and complete product iterations.
With over 13 years of experience in precision CNC machining, YUANYI offers a variety of prototyping solutions, including CNC milling, CNC turning, 5-axis machining, mill-turn machining, and through-spindle machining. Whether for single-unit sample verification, small-batch testing, or pre-production engineering samples, we provide tailored machining recommendations based on part geometry, materials, and precision requirements, ensuring on-time delivery.
| Item | Metric units | Imperial units |
|---|---|---|
| Max. CNC milling travel (X/Y/Z) | 1000 × 600 × 400 mm | 39.4 × 23.6 × 15.7 in |
| CNC turning (bar / disc / length) | Ø 2–65 mm / Ø 10–250 mm / ≤ 300 mm | Ø 0.08–2.56 in / Ø 0.39–9.84 in / ≤ 11.8 in |
| Typical tolerance (milled / turned) | ±0.05 mm / ±0.01–0.02 mm | ±0.002 in / ±0.0004–0.0008 in |
| Surface finish (as-machined) | Mill Ra 3.2–6.3 μm · Turn Ra 1.6–3.2 μm | Mill Ra 125–250 µin · Turn Ra 63–125 µin |
| Min. drilled hole (typical) | Ø 0.8–1.0 mm | Ø 0.031–0.039 in |
YUANYI operates an in-house CNC machining workshop in China, supporting prototype machining, CNC milling, CNC turning, 5-axis machining, Swiss machining, and small-batch production for global customers.
For many years, YuanYi has consistently provided prototyping services to clients in the robotics, automation equipment, medical device, and industrial equipment sectors. From single-unit samples to small-batch validation runs, we remain committed to on-time delivery, quality, and manufacturability.
Most prototype projects can be completed within 3–5 working days, helping reduce development cycles and speed up product validation.
Whether you need a single prototype part or a small batch for testing, we support projects of all sizes without minimum order requirements.
From one-off prototypes to low-volume production parts, we provide machining solutions tailored to your design requirements, material selection, tolerance needs, and project goals.
Every prototype part is inspected before shipment, with dimensional inspection reports available upon request.
We machine aluminum, stainless steel, titanium, brass, copper, and engineering plastics for a variety of prototype applications.
After prototype validation, we can seamlessly support low-volume and production orders using the same manufacturing and quality control processes.
Need a functional prototype, engineering sample, or low-volume production run? Upload your drawings and receive a fast quotation, manufacturing feedback, and professional support from our machining team.
Depending on your prototype objectives, surface finishing can be applied to improve appearance, corrosion resistance, wear resistance, or to better simulate final production parts.
6061, 7075, and 5052 are widely used for lightweight precision parts, housings, brackets, and automation components.
304, 316, and 17-4PH are suitable for durable and corrosion-resistant parts with stable machining performance.
Ti-6Al-4V and Grade 2 are often selected for aerospace, medical, and high-strength lightweight components.
C360 and C260 provide excellent machinability for fittings, valves, and precision machined connectors.
C110 and C101 are used for electrical, conductive, and thermal management components.
POM, Nylon, PTFE, PEEK, and ABS are suitable for lightweight, wear-resistant, and insulating parts.
Prototype machining is the process of manufacturing custom parts directly from CAD files for design validation, functional testing, and product development before mass production.
Yes. We support single-piece prototypes as well as small-batch orders. There is no minimum order quantity requirement.
Most prototype machining projects can be completed within 1–3 working days, depending on part complexity, material, quantity, and finishing requirements.
Yes. Every prototype part is inspected before shipment, and dimensional inspection reports can be provided upon request.
Yes. After prototype validation, we can support low-volume and production orders using the same manufacturing and quality control processes.
Yes. Our engineering team can review your drawings and provide feedback on manufacturability, material selection, tolerances, and machining feasibility before production begins.
From design validation and functional testing to low-volume production,our team is ready to help you turn ideas into high-quality prototype partswith fast lead times and reliable manufacturing support.