Frequently Asked Questions
YuanYi manufactures custom CNC-machined automotive components from customer drawings and CAD files. Typical applications include motor housings, gearbox housings, brake components, shafts and gears, heat sinks, brackets, off-road vehicle housings, suspension-related parts, and other complex metal or plastic components.
Yes. YuanYi supports custom OEM automotive parts, aftermarket auto parts, and selected replacement components made to customer specifications. Each project is reviewed based on its drawings, materials, tolerances, quantities, and performance requirements. YuanYi does not
operate as an online retailer of standard auto parts and accessories.
YuanYi machines a range of automotive materials, including aluminum alloys, alloy steels, stainless steels, cast iron, magnesium, and engineering plastics. Material selection depends on the component’s strength, weight, corrosion resistance, thermal performance, and operating environment.
Achievable tolerances depend on the material, part size, geometry, machining process, and inspection requirements. YuanYi’s engineering team reviews each drawing before quotation and confirms whether the specified tolerances can be consistently achieved. Critical dimensions can be verified using suitable inspection equipment.
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YuanYi can support repeat orders and selected batch-production projects. Production capacity is evaluated according to the part design, machining cycle, material, quantity, quality requirements, and delivery schedule. Contact the team with your forecast volume so that a suitable production plan can be confirmed.
YuanYi’s inspection capabilities include 3D CMM measurement, optical profile inspection, height measurement, hardness testing, surface roughness testing, metallurgical examination, bore and thread inspection, and salt spray testing. The inspection method is selected according to the drawing, tolerance, material, surface treatment, and customer requirements.
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Available finishing options include anodizing, powder coating, E-coating, zinc or nickel plating, polishing, and heat treatment. The appropriate finish depends on the material and the required appearance, corrosion resistance, wear resistance, hardness, or thermal performance.
For an accurate quotation, submit your 2D drawings and 3D CAD files together with the required material, quantity, tolerances, surface finish, inspection requirements, and delivery destination. STEP, STP, IGES, X_T, DWG, and PDF are commonly used file formats. YuanYi will review the information and contact you if further details are required.
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Lead time depends on part complexity, material availability, order quantity, surface treatment, and inspection requirements. YuanYi provides an estimated manufacturing and delivery schedule after reviewing your drawings and project specifications.
Yes. YuanYi supports custom CNC components for EV applications, including motor housings, battery enclosure components, heat sinks, structural brackets, shafts, and other precision parts. Material and machining processes are selected according to the component’s mechanical, thermal, weight, and electrical requirements.