Trust Sunprec as your custom metal part manufacturer for complex components.

Trust Sunprec as your custom metal part manufacturer for complex components.

At Sunprec, we believe that a metal part is never just a commodity; it is a critical investment in your product's performance and reputation. This belief shapes our customer-centric approach to metal part manufacturing, where transparency, communication, and project management are as vital as our technical capabilities. From your initial inquiry, you are assigned a dedicated project manager who serves as your single point of contact, providing regular updates and proactively addressing any potential issues. This disciplined approach to managing your metal part project ensures timelines are met, budgets are respected, and expectations are exceeded. For businesses that value a collaborative and transparent partnership as much as they value technical excellence, Sunprec offers a metal part manufacturing experience defined by reliability and peace of mind.

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One-Stop Precision Manufacturing

We integrate CNC machining, die casting, and surface finishing into one streamlined process. Simplify your supply chain and accelerate production with a single, reliable partner for all your metal part needs.

Mission-Critical Precision

Equipped with FANUC CNC machines achieving 0.005mm tolerances, we manufacture parts that meet the extreme demands of aerospace, medical, and other high-tech industries where precision is non-negotiable.

Multi-Process Expertise

Our capability spans CNC, die casting, extrusion, and investment casting. This allows us to provide integrated technical solutions for complex components, eliminating the need for multiple suppliers.

Globally Proven Quality

With a growing client base of over 300 companies across 50+ countries, our quality system and manufacturing excellence are internationally recognized, making us a trusted partner for global businesses.

about us

We Have The Best Solutions for Your Business

SUNPREC established in 2020, is located in Dongguan City, China. We pride ourselves on being a comprehensive one-stop metal part manufacturer, dedicated to delivering top-tier solutions to a diverse range of industries. This expansive capacity allows us to offer array of services, such as precision CNC Machining, CNC Turning, Die-Casting, Investment Casting, Extrusion, and Surface Finishing, ensuring that we can cater to the unique needs of our clients.

Our factory is equipped with high precision machines from globally recognized brands like FANUC, UL+ and HEXAGON. The majority of our CNC Machining Centers are from the Japanese brand FANUC with a machine tolerance of 0.005mm, we are able to manufacture products that adhere to the highest standards of precision, meeting the exacting requirements of industries such as aerospace, medical devices, and gas & oil etc.

Our cooperation spanning more than 50 countries across North America, South America, Europe, Australia, etc. We have forged strong partnerships with over 300 clients, ranging from small businesses to large multinational corporations. We are a partner dedicated to helping our clients achieve their goals and drive their businesses forward.

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User Reviews

What users say about Us

"Sunprec's CNC machining services solved our critical prototyping delays. Their precision milling and turning produced complex aerospace components with tolerances under ±0.01mm, passing our strict quality checks on the first try. The team’s responsiveness for small-batch orders accelerated our product launch by three weeks. ISO-certified quality and detailed surface finishing made them a reliable long-term partner."

Alex K.

"We struggled with porosity in aluminum die-cast housings for medical devices until partnering with Sunprec. Their process optimization eliminated defects, improved structural integrity, and reduced our rejection rate by 40%. From prototyping to mass production, they maintained consistency across 10,000+ units. The added value came from their in-house surface treatment—saving us time and logistics costs."

Sophia L.

"Sunprec’s custom extruded heat sinks exceeded performance expectations in our LED lighting systems. Their design collaboration enhanced thermal dissipation by 25% while reducing weight. They managed both low-volume testing batches and high-volume orders seamlessly, with on-time delivery every quarter. The anodizing finish provided excellent corrosion resistance, even in harsh environments."

David R.

"Finding a supplier for intricate stainless steel valve bodies was challenging. Sunprec’s investment casting delivered flawless, net-shape parts with minimal post-processing. Their metallurgical expertise ensured material grade compliance, and rigorous inspections guaranteed zero leakage failures. For low-volume specialty orders, their flexibility and rapid turnaround were exceptional."

Mia T.

"Sunprec streamlined our enclosure production with integrated sheet metal fabrication and stamping services. Their prototyping reduced lead times from 4 weeks to 10 days, and mass production scaled smoothly without quality loss. The comprehensive approach—from bending/welding to powder coating—simplified our supply chain. Consistent ISO-quality and competitive pricing resolved our cost and reliability concerns."

James H.
Frequently Asked Question

Do you have any question?

As a comprehensive manufacturer, we utilize a wide spectrum of processes to produce your metal part. This includes precision CNC Machining and CNC Turning for complex geometries, Die Casting and Investment Casting for high-volume or intricate shapes, and Custom Extrusion for specialized profiles. The optimal process for your metal part is determined through collaborative engineering to balance performance, cost, and lead time.

We offer an extensive material portfolio for metal part fabrication. This includes various grades of aluminum, stainless steel, titanium, magnesium, brass, copper, and specialized alloys like Inconel. Our expertise allows us to guide you in selecting the perfect material for your metal part based on its required strength, weight, corrosion resistance, thermal properties, and cost targets.

Absolutely. We provide seamless scaling from a single prototype metal part to full high-volume metal part production. Our prototype services allow for rigorous design validation and functional testing, while our production facilities are equipped for efficient, consistent manufacturing of large quantities, ensuring every metal part meets the same high standard.

Every metal part we produce undergoes rigorous quality verification. Our quality assurance system includes First Article Inspection (FAI), in-process checks, and final inspection using CMMs, optical comparators, and other precision measuring equipment. We maintain full documentation and traceability for each metal part, particularly for aerospace and medical applications.

Yes, we offer complete post-processing and value-added services. Beyond manufacturing the base metal part, we can perform heat treatment, Surface Finishing (anodizing, plating, powder coating), and complete sub-assembly. This turnkey approach for your metal part simplifies your supply chain and ensures quality control from raw material to finished component.

Our differentiation lies in our integrated capabilities and partnership approach. Rather than just producing a metal part to print, we act as an engineering partner. We analyze your design for manufacturability, suggest optimizations, and select the most efficient production method. Our track record of serving over 300 global clients across diverse industries is a testament to our ability to deliver reliable metal part solutions.

Our updates and blog posts

CNC Machining Guide: Precision Services & Applications | SUNPREC

Explore SUNPREC's CNC Machining services for high-precision metal and plastic parts. Learn about processes, benefits, and industry applications.

Die Casting Guide: Processes, Materials & Applications | SUNPREC

Explore SUNPREC's die casting services for high-quality metal parts. Learn about aluminum, zinc & magnesium die casting processes and applications.

Custom Extrusion Guide: Aluminum & Plastic Extrusion Services

Discover SUNPREC's custom extrusion services for aluminum & plastic profiles. Learn about extrusion processes, materials, and industry applications.

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