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Precision Engineering Excellence

Leading the industry with advanced CNC technology, innovative solutions, and unmatched precision for your manufacturing needs.

Precision Machining

High-accuracy CNC machining with tolerances down to ±0.005mm for critical components.

Advanced Technology

3.4.5-axis CNC machines and state-of-the-art CAD/CAM software for complex geometries.

Rapid Prototyping

Quick turnaround times(1 -2 weeks) with our efficient production workflow and dedicated engineering team.

OEM Precision Machining Manufacturer in China      MOQ 2PCS with FAI Report

As an OEM manufacturer, Sunjoy offers FAIR for each order to ensure the smooth transition of products from development to mass production and reduce later quality risks.

Experience
20+
Years in Industry
Precision
±0.005
mm Accuracy
Certifications
ISO
9001
Precision Machining Manufacturing

Product Analysis

CNC Lathe Work

Salt Spray Test Machine

Featured Products

Explore Sunjoy Technology's high-precision machining products, each piece showcasing our 20 years of professional craftsmanship in precision manufacturing

CNC Precision Machined Parts

High-precision metal components machined using advanced CNC equipment, with accuracy up to +/-0.005mm, suitable for electronic devices and medical equipment

High Precision
Metal Machining

Aluminum Extrusion Products

Custom aluminum alloy extrusions with fine surface finishing, widely used in electronic device enclosures, heat sinks, and structural frames

Lightweight
Aluminum Alloy

Die-Cast Automotive Components

High-quality die-cast components for automotive electronic systems, featuring excellent structural strength and precise dimensional tolerances

Durability
Automotive Grade

Precision Stamping Parts

Efficiently produced metal stamping components, ideal for mass production, widely used in home appliances, communication equipment, and more

High Efficiency
Mass Production

CNC Turned Parts

High-precision CNC-turned symmetrical components with superior surface finish, suitable for precision machinery and industrial automation equipment

High Surface Finish
Rotational Parts

Stainless steel CNC turning

Stainless steel CNC turning products are widely used across various industries due to their corrosion resistance, durability, precision, and versatility.

High Surface Finish
Rotational Parts

Industries We Serve

Our precision manufacturing solutions power innovation across multiple high-demand sectors

Computers & Electronics

Precision components for consumer electronics, computer hardware, and advanced computing systems with tolerances up to +/-0.005mm.

Telecommunications

High-precision parts for network infrastructure, communication devices, and telecom equipment that demand reliability and durability.

New Energy

High-precision parts boost efficiency, reliability, and durability in renewable energy systems like EVs and solar power

Automotive Electronics

IATF16949-certified manufacturing for critical automotive electronic components that meet strict industry safety and reliability standards.

Lighting

Costom metal components enhance LED efficiency, durability, and light uniformity for superior lighting performance

Drone & Robot

High-precision drone and robotic components ensure accurate navigation, stability, and efficiency for autonomous operations

Need Custom Solutions for Your Industry?

Our engineering team can develop tailored manufacturing solutions for your specific industry requirements, no matter how complex.

Request a Consultation

Our Advanced Equipment

Explore Sunjoy Technology's state-of-the-art manufacturing facility equipped with precision machinery to deliver exceptional quality.

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About Alan Dong

Sunjoy was founded in 2005, by Alan Dong, a skilled engineer with over 10 years of experience in CNC and die-casting manufacturing. After a decade of hands-on work in the industry, Alan leveraged his expertise to establish his own company, combining technical precision with entrepreneurial vision. 

Driven by his deep understanding of machining processes, Alan is committed to delivering high-quality solutions and sharing his knowledge to help others excel in the field. Sunjoy stands as a testament to his dedication—turning years of experience into a thriving business that serves clients with reliability and innovation.

Professional Skills

CNC Machining

Mold Design

Project Management

Business Development

What Our Clients Say

Trusted by industry leaders worldwide for our precision manufacturing excellence

Robert

*** Inc.

"We like Sunjoy's CNC machining services for our communication parts.We signed NDA. Their team is responsive, delivers on time, and proactively solves challenges—like when they optimized a complex housing part, reducing both cost and lead time. A trusted partner we highly recommend!

Emily

*** Solutions

"As a medical device manufacturer, we require absolute precision and consistency. Sunjoy's one-stop service from material sourcing to delivery has streamlined our supply chain. Their quality assurance process with regular inspections gives us peace of mind for our critical components."

Nathan

*** Electronics

"We've partnered with Sunjoy for over 5 years for our computer components. Their die casting and metal extrusion capabilities are exceptional. What sets them apart is their rapid response time - we typically receive quotes within 24 hours and their transparent production reports keep us informed every step of the way."

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