Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication transcends mere obligation; it is an inspired passion that marries the artful mastery with the rigorous science of precision manufacturing. Our unmatched expertise shines brightly in the realm of elite component creation, brilliantly charting the path to impeccable precision and ultimate excellence. We lead the vanguard of innovation and manufacture groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a multitude of industries, adeptly addressing diverse applications and requirements, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and state-of-the-art solutions for advanced medical devices, consistently upholding the utmost standards of quality excellence.
- Semiconductors: Enhancing chip production and associated machinery by providing indispensable core components crucial to the industry's flourishing success.
- New Energy: Engaging actively in the vibrant and sustainable evolution of advanced energy equipment, championing eco-friendly technological breakthroughs.
- Automotive: Supplying vital components that fuel innovation within the automotive domain, underpinning the advancement of both smart and electric vehicles.
Main Products
- We masterfully craft non-standard, bespoke components, extensively servicing the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and extraordinary quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: Our Unwavering Pledge to Purity and Integrity
In the hallowed halls of our warehouse, every raw material undergoes an exhaustive evaluation that is nothing short of meticulous. Our rigorous assessment process delves into the depths, scrutinizing chemical compositions and thoroughly inspecting physical properties. We are steadfast in our pursuit of quality assurance, demanding every supplier furnish a Certificate of Origin and a meticulously stamped Declaration of Conformity. This ensures only the most elite materials earn a place in our premier high-precision medical machining services. Our rigorous authentication process serves as a stalwart guardian, ensuring these materials not only meet but also exceed the pinnacle of integrity and purity, perfectly echoing our steadfast commitment to quality.
Comprehensive In-Process Quality Assurance: Precision at Every Stage
Amid the intricate choreography of our precision machining operations, every component is subject to intense scrutiny, ensuring dimensions and tolerances not only meet but surpass our demanding specifications. Our continuous inspection protocol, a strategically designed masterpiece, intercepts potential defects at their inception, preventing non-conforming parts from progressing further. This vigilant practice is foundational in minimizing risks of substandard products, assuring superior quality at every juncture, and sustaining unparalleled excellence throughout the production symphony.
Strategic First Article Inspection (FAI): Paving the Way for Perfection
Our First Article Inspection (FAI) transcends mere process; it is a strategic foresight cornerstone, essential for identifying and resolving latent production challenges at their nascent stage. This proactive strategy acts as a bulwark, forestalling issues from proliferating into mass production. The comprehensive precision of our FAI process is crucial in mitigating quality risks, ensuring our products consistently crest the summit of excellence. This unwavering dedication to quality permeates every facet of the production cycle, guaranteeing that we surpass even the loftiest quality benchmarks.
Meticulous Comprehensive Final Inspection: Achieving the Pinnacle of Perfection
Before any product embarks on its journey from our facility, it undergoes a final inspection that epitomizes meticulousness and thoroughness. This exacting process scrutinizes dimensions, visual aesthetics, performance, and any customer-specific requisites with unmatched precision. Our comprehensive inspection is not merely a testament but a covenant to our relentless pursuit of quality, ensuring every dispatched part is a testament to our stringent standards. We stand resolute in delivering only the highest caliber products to our esteemed customers, steadfastly upholding our reputation for unmatched excellence and unwavering dependability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing its foundational roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a beacon of unrivaled expertise in the realm of high-precision basic component machining. With an unwavering commitment to innovation over the past two decades, we have immersed ourselves in comprehensive technical research, establishing a revered reputation as pioneers in precision engineering. We have accumulated a substantial reservoir of technical expertise, earning an illustrious market reputation that distinguishes us as a leader in the industry. Our capabilities in precision medical machining services are unparalleled, consistently achieving exceptionally tight tolerances and flawless surface finishes, rendering us the preferred partner in the medical sector.
With four strategically positioned production bases situated in the dynamic hubs of Shenzhen and Guiyang, supported by a committed workforce of over 400 skilled employees, Donghui has meticulously crafted a comprehensive and vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures that we not only meet but surpass the multifaceted needs of our customers with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining tasks, sustaining our reputation for excellence and pioneering innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)