Premium CNC Stainless Steel Parts – Built for Performance | YYI Tech

Why Choose YYI Tech?

When precision meets durability — that’s YYI Tech. Our CNC stainless steel parts are trusted by engineers and product teams around the world for their accuracy, strength, and exceptional surface finish.

Whether you're prototyping a new product or scaling production, we’ve got your back with fast turnaround, consistent quality, and factory-direct pricing.

Highlights at a Glance

• Precision CNC Machining – Tolerances down to ±0.01mm

• Material Mastery – SS304, SS316, SS303 & more

• Corrosion Resistance – Built to endure harsh environments

• Global Shipping – Fast delivery, no matter where you are

• Flexible Production – From single prototypes to mass runs

What We Make

Our stainless steel parts are used in:

• Medical devices & surgical tools

• Automotive engines & fuel systems

• Aerospace fasteners & supports

• Consumer electronics housings

• Automation & robotics parts

From simple brackets to complex 5-axis machined housings — we do it all.

Materials & Finish Options

Choose from a variety of stainless steel grades:

• SS304: Great all-purpose strength and corrosion resistance

• SS316: Marine-grade, ideal for harsh chemical or salt environments

• SS303/416: Excellent machinability for intricate designs

Finish options include:

• Polishing

• Bead blasting

• Passivation

• Electropolishing

Frequently Asked Questions

Q: Can you work with my 3D files?
A: Absolutely. Send over your STEP, STL, or DWG files, and our engineers will take care of the rest.

Q: What's your turnaround time?
A: Typically 7–15 working days, depending on complexity and quantity.

Q: Do you ship internationally?
A: Yes, we ship worldwide via DHL, FedEx, or sea freight for bulk orders.

Q: Do you offer surface treatment or post-processing?
A: Yes, we offer a range of finishes including polishing, anodizing, and custom coatings.

Why Our Clients Keep Coming Back

• Real Factory Pricing – No middlemen, no markups

• Instant Engineering Support – Free DFM feedback on your design

• Guaranteed Quality – Each part inspected before shipment

• Flexible MOQ – Start small, scale big

About Dongguan YYI Technology Co., Ltd

At Dongguan YYI Technology Co., Ltd., we are dedicated to transforming your concepts into tangible innovations. With over 20 years of industry experience, our company has evolved into a leading provider of rapid prototyping and low-volume manufacturing solutions. We specialize in delivering high-quality, customized products across various industries, ensuring that each project meets the unique needs of our clients.

Our Facilities

Our state-of-the-art facilities are equipped with over 220 3D printing devices, including SLS, SLA, MJF, FDM, and PolyJet printers, as well as 10 SLM metal printing machines. Our injection molding workshop houses 50 injection molding devices, and our CNC machining workshop is equipped with 40 CNC machines. Additionally, our post-processing and quality inspection departments are staffed with over 60 professionals, ensuring that every product undergoes thorough inspection and finishing processes.

Why Choose YYI Tech?

Integrated Solutions: With over two decades of experience and a team of more than 20 professional engineers, we develop comprehensive solutions tailored to optimize cost-effectiveness and meet customer requirements.

One-Stop Service: From 3D drawing creation to rapid prototyping, small batch production, post-processing, and final inspection, we provide a seamless experience for our clients.

Customer-Centric Approach: We prioritize our clients' needs, responding quickly and efficiently to ensure the successful development and delivery of your products.

Industry Expertise: We serve a diverse range of industries, including automotive, medical equipment, industrial models, intelligent robots, smart home appliances, aviation, shipbuilding, and tooling fixtures.

Our Vision

Our vision is to be a trusted partner in your product development journey, delivering innovative solutions that accelerate time-to-market and enhance product quality. We are committed to continuous improvement and innovation, striving to exceed our clients' expectations and contribute to their success.