From Prototyping To Mass Production One-stop Solutions
One-stop Solutions for Your Projects From Prototyping To Mass Production
15+
Industry Experience
3000+
Service Company
50+
Global Clients
20000000+
Unique Parts
Our Manufacturing Capability
Zhonghui is a trusted CNC machining and die casting manufacturer delivering high-precision, custom metal parts for global OEMs. From prototype development to high-volume production, we combine advanced equipment, skilled engineers, and strict quality control to ensure every part meets exact specifications.
CNC Milling Services
Our CNC milling services produce aluminum, stainless steel, and brass parts with high accuracy. 3-axis, 4-axis, and 5-axis centers handle complex geometries. We achieve tolerances as tight as ±0.005mm, ensuring top-quality components.
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CNC Turning Services
We provide CNC turning for cylindrical parts such as shafts, pins, and connectors. Our turning centers guarantee smooth surfaces and precise dimensions. Both prototype and mass production orders meet strict quality standards.
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5-Axis Milling Services
Our 5-axis machining enables multi-surface cutting in one setup. Complex and intricate parts are machined efficiently. Ideal for aerospace, medical, and industrial components with high precision and excellent surface finish.
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Aluminum Die Casting
We offer high-pressure and low-pressure aluminum die casting services. Parts such as housings, brackets, and enclosures are durable and lightweight. Excellent mechanical strength, thermal conductivity, and dimensional stability are ensured.
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Zinc Die Casting
Our zinc die casting produces precise, cost-effective parts with fine details and thin walls. Components feature excellent surface finish, dimensional stability, and corrosion resistance. Ideal for electronics, connectors, and decorative applications.
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Magnesium Die Casting
We manufacture magnesium die castings offering ultra-lightweight and strong components. Perfect for automotive, aerospace, and electronics. Tight tolerances, superior surface finish, and high performance are consistently delivered.
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Precision CNC Machining Manufacturer in China
Zhonghui is an ISO9001 and IATF16949 certified CNC machining factory in China. We specialize in producing custom machined metal parts with tight tolerances and superior surface finishes. Our engineers optimize machining processes to ensure high efficiency, consistent accuracy, and reliable delivery for projects ranging from complex housings to small precision fittings.
ISO9001:2015 Certificate
The internationally recognized quality management standard that focuses on meeting customer requirements, enhancing satisfaction, and achieving continuous improvement.
IATF16949:2016 Certificate
The global quality management standard for the automotive industry, emphasizing defect prevention, waste reduction, and continuous improvement.
Credit management demonstration unit
The official recognition awarded to businesses demonstrate ethical practices, regulatory compliance, and a commitment to operational integrity.
Custom CNC Machined Parts Gallery
Explore our CNC machined components and die cast parts made from aluminum, stainless steel, brass, zinc, and magnesium. We specialize in housings, brackets, heat sinks, enclosures, and connectors for automotive, telecom, aerospace, medical, and industrial applications. All parts are produced with tight tolerances and superior surface finish.
Experience, Precision, and Reliability
Zhonghui specializes in precision CNC machining with over 30 advanced machines, including 3-, 4-, and 5-axis milling and horizontal machining centers. Our skilled engineering team ensures every part meets exact specifications with exceptional accuracy and consistency. From rapid prototyping to full-scale production, we deliver high-quality components quickly and reliably for industries such as automotive, telecommunications, and industrial manufacturing.
Advantages of CNC Custom Machining Parts
Leverage Zhonghui’s advanced CNC machining capabilities to turn your design concepts into high-precision parts with tight tolerances and excellent surface finishes.
1. Advanced CNC Equipment
Over 30 CNC milling and turning centers, including 5-axis machines, enabling complex geometries and efficient production with consistent quality.
2. High Precision and Accuracy
Tolerances up to ±0.005mm, smooth surface finish, and superior dimensional stability for prototypes and small-batch manufacturing.
3. Fast Prototyping & Sample Service
3-day prototype samples, small-batch production in 15 days, and express delivery to North America and Europe in as fast as 4 days.
4. Material Flexibility
Capability to machine aluminum, stainless steel, brass, titanium, and more, with professional material recommendations and DFM support.
5. Comprehensive Quality Control
ISO9001 and IATF16949 certified processes, real-time inspection, and online access to quality documents for every order.
Exceptional Service and Support for Your CNC Projects
Delivering more than just precision parts, Zhonghui provides professional, responsive, and customized support to ensure a seamless experience from inquiry to delivery
1. Dedicated Project Support
Our engineers and sales team work closely with you, offering DFM advice, material recommendations, and process guidance, ensuring smooth communication throughout the project
2. Fast Response & Communication
We provide real-time support and quick responses to all inquiries, keeping you informed at every stage of production
3. Flexible Sample & Order Options
Prototype samples are produced rapidly, small-batch production is efficiently managed, and shipping options are flexible to meet your project timelines
4. After-Sales Commitment
We provide 100% free replacement or refund for any defective parts, rapid NCR response within 4 hours, ensuring peace of mind
Experienced Engineering Team You Can Trust
When precision, reliability, and innovation matter, our highly skilled engineers bring over 15 years of experience in CNC machining and die casting. We work closely with clients across automotive, telecom, aerospace, and industrial sectors, delivering high-precision components and end-to-end project support from design to mass production.
1. Proven Expertise
Our engineers bring over 15 years of experience in CNC machining and die casting, delivering high-precision components for global OEMs across automotive, telecom, aerospace, and industrial sectors
2. Fast and Reliable Delivery
With extensive project experience, our team efficiently completes prototypes and small-batch production, ensuring your deadlines are always met
3. Design for Manufacturability (DFM) Support
Our engineers work closely with clients to optimize designs, recommend materials, and select the best manufacturing processes for cost-effective and reliable results
4. Advanced Problem-Solving Skills
From complex geometries to tight-tolerance parts, our experienced team can troubleshoot production challenges and provide solutions that maintain quality and efficiency
5. End-to-End Project Management
Our team coordinates every step of the project, from initial quote and prototyping to mass production, quality control, and delivery, offering a seamless experience
6.Quality Assurance Expertise
Our engineers follow ISO 9001 and IATF 16949:2016 certified quality systems to ensure every part meets international standards and exceeds customer expectations.
Get started on your project right away!!
Don’t wait to bring your ideas to life. Contact ZH now and let our expert team help you launch your products faster, with top-quality results and significant cost savings.
On-Demand Manufacturing
Zhonghui offers flexible on-demand CNC machining services, delivering high-precision aluminum, stainless steel, brass, and titanium parts with tight tolerances and consistent quality. Our services help you accelerate product development and bring products to market efficiently.
Low-Volume Manufacturing Service
Rapid Prototyping Services
How To Collaborate With Zhonghui？
From design to prototyping to full production, Zhonghui makes it easy to turn your ideas into high-precision CNC machined parts in just three simple steps, ensuring fast turnaround, consistent quality, and efficient delivery.
Upload CAD Files
Please send all relevant documents (including 3D models and 2D drawings) to info@zhjmdiecast.com.
Get a Quote
Once we receive your project details, we will provide a design for manufacturability (DFM) analysis and an instant quote, and then place your order.
Parts Delivery
After production is complete, parts undergo quality inspection and are then safely delivered to you.
Trusted CNC Machining and Die Casting Supplier for Global OEMs
Zhonghui has earned the trust of top-tier OEMs including Foxconn, Oracle, Juniper, Airspan, Alnan, and Sageran. Our reliable production capacity, advanced equipment, and commitment to quality have made us a preferred partner for precision metal parts and complex component manufacturing.
Extensive Industry Experience
Zhonghui is a leading custom CNC machining and die casting manufacturer, serving clients in over 20 countries worldwide. We produce precision components for a wide range of industries, including microlight infrared systems, photoelectric rangefinders, aircraft seats, avionics, high-speed rail communications, new energy vehicles, oil & gas electronic valve bodies, pneumatic and hydraulic solenoid valves, high-speed turbine blowers, turbine water pumps, medical testing equipment, semiconductor and automation manufacturing, smart agriculture, smart home appliances, and wearable devices.
Automotive
Robotics
Energy
Medical Equipment
Optical Lens
Aerospace
Frequently Asked Questions
Still have questions? Click to view the FAQ page, there are more common questions for you to answer! Contact our team is ready to help you.
A:CNC machining (Computer Numerical Control) is a precision manufacturing process that uses automated cutting tools controlled by computer programs to remove material and shape parts with high accuracy. It is ideal for producing complex geometries and tight-tolerance components.
A: ZH Precision specializes in custom metal parts for various industries, including aerospace, automotive, medical, robotics, and industrial equipment. From prototypes to small- and medium-volume production, we deliver precision components such as housings, brackets, fixtures, heat sinks, and impellers.
A:Our standard CNC machining tolerance is ±0.01 mm, and tighter tolerances down to ±0.003 mm can be achieved for high-precision parts. Each part undergoes complete dimensional inspection to ensure quality and accuracy.
A: We work with a wide range of metals including aluminum, stainless steel, mild steel, titanium, brass, copper, and nickel-based superalloys, all sourced from certified suppliers to ensure consistent performance and durability.
A: ead times vary depending on complexity and quantity. Rapid prototypes can be delivered in 3–5 days, while production orders typically ship within 7–15 working days. Expedited machining services are available upon request.