Product application
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is passionately devoted to the artful crafting of luxurious high-end precision components and pioneering the development of cutting-edge intelligent automation equipment, expertly serving a variety of elite industries including:
- Medical and Biotech: Delivering impeccably high-precision components and forward-thinking solutions tailored for advanced medical devices.
- Semiconductors: Enhancing chip manufacturing and its associated equipment with our indispensable core components.
- New Energy: Playing a vital role in the progressive and sustainable advancement of new energy equipment.
- Automotive: Supplying pivotal components that fuel innovation across the automotive industry, especially within the realms of intelligent and electric vehicle development.
Main Products
- Our exceptional range of non-standard customized components is extensively utilized across the medical, automation, semiconductor, and automotive industries.
Why choose us
Core Advantages
- A fleet of: Harness the power of our extensive and cutting-edge machine arsenal. over 300: Boasting an impressive collection of more than 300 high-performance units. branded: Recognized and trusted brands ensure reliability and excellence. machines: Machines designed to deliver precision and efficiency in every task., covering a wide range of equipment categories, capable of meeting various machining needs across industries: Seamlessly accommodating a comprehensive spectrum of equipment categories, poised to cater to diverse machining demands spanning multiple industries.
- 20 years of production experience, with rich technical and process advantages: Two decades of unparalleled production experience, enriched with profound technical insights and sophisticated process expertise.
production equipment: State-of-the-art production equipment engineered for superior output.
Inspection Equipment: Precision-driven inspection equipment ensuring impeccable quality control.
Quality Ensurance
Meticulous In-Coming Material Inspection
Before any raw materials are welcomed into our warehouses, they must undergo rigorous chemical composition analysis and thorough physical property testing. Our trusted suppliers are required to accompany their shipments with a Certificate of Origin as well as a fully authenticated Declaration of Conformity, ensuring material integrity from the outset.
Stringent In-Process Inspection Protocols
Throughout the machining process, every part is subjected to relentless inspection to maintain strict adherence to specified sizes and tolerances. This vigilant methodology is instrumental in intercepting and eliminating defective components before they can progress, effectively safeguarding against entire batches of non-conforming products.
Comprehensive First Article Inspection (FAI)
The First Article Inspection (FAI) is a pivotal cornerstone in our quality management strategy, meticulously designed to detect and address potential production hiccups before they spiral into large-scale scrap issues. Our FAI process is engineered for precision, playing an indispensable role in quality risk mitigation and consistently upholding product excellence.
Rigorous Final Inspection
Prior to shipment, each part is meticulously scrutinized for dimensions, aesthetic quality, operational functionality, and any bespoke customer specifications. This comprehensive inspection guarantees that only flawless components reach our esteemed customers, preserving our commitment to unparalleled quality.
Packaging & Shipping
Company Profile
Donghui Precision Machinery Co., Ltd. was established in 2009 (founded initially in 2002) and has spent the last two decades honing its focus on the art and science of high-precision basic component machining. Our dedication to advancing related technical research has solidified our position as a leader in the industry. We have garnered a wealth of technical expertise, complemented by an enviable market reputation that speaks volumes about our commitment to excellence.
Boasting four state-of-the-art production bases strategically located in the bustling hubs of Shenzhen and Guiyang, and supported by a skilled workforce of over 400 dedicated employees, Donghui has meticulously crafted a comprehensive industry chain. We seamlessly manage everything from cutting-edge research and development to the actual production and precise delivery of our products, ensuring we meet and exceed the diverse needs of our valued customers with efficiency and top-tier quality.
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)
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