Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication to precision manufacturing is unrivaled. Merging traditional craftsmanship with state-of-the-art innovation, we lead a modern renaissance in exceptional engineering. Our tireless dedication to flawlessness ensures each piece is a masterpiece of precision. By embracing cutting-edge technology and upholding our steadfast quality standards, we set ourselves apart, delivering meticulously crafted components that epitomize precision and excellence. Possessing unparalleled knowledge in precision engineering, we set the benchmark for supreme component quality. Our exceptional agility and precision ensure consistent excellence across all operations, establishing us as leaders and innovators in the industry. As pioneers of innovation, we elevate standards in the design and delivery of groundbreaking intelligent automation equipment. Our advanced solutions seamlessly integrate across diverse industries, adeptly addressing unique challenges in various applications, such as:
- Medical and BiotechOur precisely engineered, high-accuracy components and transformative solutions spearhead the forefront of advanced medical technologies, establishing unparalleled standards of excellence within the field.
- SemiconductorsProviding essential components, we propel advancements in chip production and related technologies, dramatically boosting efficiency and innovation within the semiconductor industry.
- New EnergyWe are instrumental in the innovative and sustainable progression of next-generation energy equipment, playing a crucial role in shaping the future of energy solutions.
- AutomotiveWith our vital components, we are at the forefront of innovation in the automotive sector, pushing forward the advancement of smart and electric vehicles, and molding the future of transportation.
Main Products
- Our expertly crafted non-standard customized components are the pinnacle of precision and quality. Catering to essential industries such as medical, automation, semiconductor, and automotive, we deliver unmatched precision and superior quality that endures over time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by a formidable assembly of over 300 of the industry's leading-edge machinery units. This vast, state-of-the-art collection ensures our dominance in innovation and adaptability within the sector. By persistently delivering pioneering solutions, we establish the industry benchmark for exceptional performance, continually pursuing unmatched precision and exemplary quality. These Top-Tier Branded Our groundbreaking machinery units are the cornerstone of our precision-centric manufacturing process, forming the essential framework that upholds our stringent production standards. With these state-of-the-art tools, we perpetually refine and advance our manufacturing techniques to consistently achieve extraordinary outcomes. Armed with our high-caliber machines, we expertly execute intricate and demanding machining tasks across a multitude of industries, attaining unparalleled precision and productivity. Our extensive expertise guarantees rigorous compliance with the highest quality standards while offering tailored customization that not only fulfills but routinely surpasses the unique requirements of our valued clients, surpassing their highest aspirations.
- With a distinguished 20-year legacy to our name, we draw upon an abundant reservoir of manufacturing experience seamlessly intertwined with profound technical knowledge and process proficiency. This harmonious blend ensures not only exceptional quality but also groundbreaking innovation. We equip ourselves to consistently deliver extraordinary products that exceed expectations and establish new benchmarks of excellence within the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In today's dynamic landscape where innovation and precision reign supreme, we don't just aim to meet the industry's high benchmarks; we elevate them with unrivaled methodologies. By establishing a robust foundation of excellence, we set revolutionary standards that resonate throughout each phase of our production journey, ensuring that every expectation is not only met but exceeded.
Every piece of raw material that enters our cutting-edge warehouse undergoes a strict evaluation process, setting new standards in quality assurance. Our holistic approach involves detailed chemical composition analysis and thorough assessments of physical properties. We demand that suppliers provide a Certificate of Origin along with a verified Declaration of Conformity, guaranteeing that only top-tier materials are employed in our advanced medical machining services. This meticulous validation process reinforces material integrity and purity, perfectly aligning with our steadfast devotion to unparalleled quality.
Uncompromising In-Process Quality Control: With an unwavering focus on detail and consistent vigilance, we relentlessly pursue perfection. This rigorous process guarantees that our standards of excellence are not only consistently achieved but often surpassed, cementing our reputation for superior craftsmanship.
Throughout the intricate machining process, every component is meticulously scrutinized to ensure dimensions and tolerances precisely align with our stringent specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring that exceptional quality is maintained at every stage of production, delivering remarkable products to our clients.
Proactive and Comprehensive First Article Inspection (FAI): Our preventative framework lays the groundwork for immaculate excellence, exemplifying unmatched precision and thoroughness at the inception of production.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly pinpointing and resolving potential production challenges from the outset. This proactive approach guarantees that issues are addressed before they escalate into production obstacles. Our comprehensive FAI process is essential in minimizing quality risks, ensuring our products consistently achieve the highest standards, and reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate protector of exceptional quality and precision, ensuring the delivery of perfection to our discerning clientele.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation involves in-depth assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our steadfast dedication to quality, ensuring that every delivered part meets our exacting standards and provides our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. was established as a luminary in the refined domain of high-precision component machining. Our prestigious journey has been fueled by a relentless passion for the nuanced art and exacting science of engineering, spanning more than two decades of unyielding innovation and extraordinary precision. We have brilliantly etched our name as pioneers in precision engineering, perpetually advancing technical research and establishing groundbreaking standards in the industry, continually surpassing expectations in both innovation and unparalleled quality. We have diligently cultivated an extraordinary level of technical prowess, positioning ourselves as market leaders with a prestigious reputation for unmatched excellence. Our expertise in precision medical machining services is second to none, consistently achieving the strictest tolerances and delivering impeccable surface finishes. This dedication confirms our position as the preferred choice in the medical sector. Our precision and unwavering reliability have earned us enduring trust and regard, making us the foremost name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain seamlessly connects cutting-edge research and development, superior production, and impeccable delivery. Our operations guarantee we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are exceptionally designed to handle the most intricate and demanding machining tasks, bolstering our esteemed reputation for excellence and groundbreaking 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)