Custom Extrusion for Automotive & Aerospace Applications

Custom Extrusion for Automotive & Aerospace Applications

When off-the-shelf profiles fall short, Custom Extrusion becomes the cornerstone of innovative product design and functionality. At Sunprec, we specialize in transforming your unique design concepts into high-precision, continuously manufactured profiles through our advanced Custom Extrusion services. We work with a diverse range of materials, including aluminum, plastic, and specialty alloys, to create complex cross-sections that meet exact mechanical, thermal, and aesthetic requirements. Our integrated approach encompasses everything from initial design consultation and die fabrication to precision cutting and secondary operations. Partner with Sunprec for Custom Extrusion solutions that bridge the gap between your visionary designs and manufacturable reality, serving industries from automotive and aerospace to construction and consumer electronics.

Get A Quote
Features

Why Choose Us?

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.

Read More

In my tenure navigating the complexities of industrial manufacturing, I've come to view Custom Extrusion as one of the most versatile yet underappreciated processes in a manufacturer's toolkit. At Sunprec, we've elevated Custom Extrusion from a simple shaping operation to a sophisticated engineering discipline that unlocks design possibilities unattainable through other methods. The true power of Custom Extrusion lies not in what it is, but in what it enables – the consolidation of multiple components into a single, integrated profile that reduces assembly time, improves structural integrity, and enhances aesthetic continuity. Our approach to Custom Extrusion begins long before the billet enters the press; it starts with a collaborative engineering dialogue where we help clients reimagine what's possible when design constraints are lifted and manufacturing expertise is applied proactively.

The technical execution of Custom Extrusion represents a delicate balance between material science, mechanical engineering, and thermal dynamics. Each new Custom Extrusion profile presents unique challenges in die design, where we must anticipate material flow, cooling rates, and stress distribution to achieve consistent cross-sectional dimensions and mechanical properties. Our expertise in Custom Extrusion die manufacturing is particularly crucial for complex profiles with multiple voids, thin walls, or tight tolerance requirements. We've invested significantly in simulation software that models the extrusion process before cutting steel, allowing us to identify potential issues with die fill, welding lines, or dimensional stability. This scientific approach to Custom Extrusion development significantly reduces iteration cycles and ensures that production runs achieve optimal efficiency and consistency from the very first meter.

Looking toward the future, the role of Custom Extrusion in manufacturing innovation continues to expand. The trend toward lightweighting across automotive, aerospace, and consumer electronics creates growing demand for aluminum and magnesium Custom Extrusion profiles that replace heavier fabricated assemblies. Similarly, the electrification revolution drives need for specialized Custom Extrusion profiles for battery enclosures, heat sinks, and power distribution systems. At Sunprec, we're continuously advancing our Custom Extrusion capabilities to meet these evolving demands, developing expertise in multi-material extrusions, integrated functionality, and sustainable material options. For forward-thinking companies, our Custom Extrusion expertise represents not just a manufacturing solution, but a strategic resource for product differentiation and competitive advantage in an increasingly demanding marketplace.

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?

Our Custom Extrusion capabilities encompass a wide range of materials to meet diverse application needs. We specialize in Aluminum Custom Extrusion for its excellent strength-to-weight ratio and corrosion resistance, and Plastic Custom Extrusion for electrical insulation and complex geometries. We also work with copper, steel, and other specialty alloys, ensuring the right material selection for your specific Custom Extrusion project's performance requirements.

The lead time for a new Custom Extrusion project varies depending on complexity. Simple profiles with existing die designs may take 2-3 weeks, while complex projects requiring new die design, fabrication, and sample approval typically require 4-6 weeks. We prioritize efficient die development and sampling in our Custom Extrusion process to accelerate your time-to-market without compromising on quality.

Absolutely. Our engineering team provides comprehensive Custom Extrusion design support, including Design for Manufacturability (DFM) analysis. We help optimize wall thicknesses, corner radii, and tongue ratios to ensure your profile can be successfully extruded while meeting all functional and cosmetic requirements. This collaborative approach to Custom Extrusion design prevents costly revisions and ensures optimal production efficiency.

Our Custom Extrusion capabilities accommodate a broad spectrum of profile sizes. We can produce very small, intricate profiles with circumscribing circle diameters as small as 10mm, as well as large, structural profiles with circumscribing circles up to 300mm. The specific size range for your Custom Extrusion project depends on the material and complexity, which we evaluate during the initial design review.

Yes, as a comprehensive manufacturing partner, we offer extensive secondary operations for our Custom Extrusion components. These include precision cutting to length, drilling, tapping, milling, bending, welding, and various surface finishing options such as anodizing, powder coating, and polishing. This integrated approach to Custom Extrusion manufacturing streamlines your supply chain and ensures consistent quality across all processing stages.

Our Custom Extrusion services support numerous industries requiring specialized profiles. We have extensive experience supplying Custom Extrusion for automotive trim and structural components, aerospace interiors, construction systems, electrical enclosures, HVAC systems, and consumer products. Any application demanding a specific cross-sectional shape that cannot be found in standard extrusions is an ideal candidate for our Custom Extrusion expertise.

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.

Contat Us

Do you have any question? Don't hesitate to contact with us

Sending your message. Please wait...