CNC Machining Services
Custom Injection Molding Services
Custom Sheet Metal Fabrication Services
Metal Mold Services
ISO 9001:2015, ISO 13485, IATF 16949:2016 Certified
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HuaZheng is the go-to manufacturer for high-quality prototypes and end-use machined parts, whether simple or complex. We own 700+ CNC machines, offering milling, turning, routing, EDM machining, drilling, and precision grinding. Our ISO 9001 certification andexpertise guarantee precision every time.
Huazheng is located in Shenzhen Shajing, was founded in 2012, is a national high-tech
enterprises, more than 10 years has always been focused on CNC hardware parts
machining, five-axis linkage machining, to provide one-stop service. The company
covers an area of more than 2,000 square meters, more than 60 employees,
of which more than 30 are middle and senior technicians. The company is
equipped with more than 30 sets of advanced machining equipments such as
3-axis, 4-axis, 5-axis linkage and gantry CNC, milling machines, lathes, drilling
machines, sand blasting machines and other supporting equipment.
The company specializes in automotive parts, photovoltaic energy storage, 3C
digital, medical equipment, communication equipment, artificial intelligence,
military equipment, aerospace, train, urban rail subway parts and other fields to
provide custom processing one-stop service.
No additional treatment. Tool marks are visible. Typical surface roughness is around Ra 3.2μm. Suitable for functional parts.
Removes sharp edges and burrs left by machining. Improves safety and assembly precision.
Enhances surface smoothness and gloss. Can achieve mirror-like finish. Ideal for decorative or precision parts.
Creates a uniform matte or satin texture using fine media (glass beads or aluminum oxide). Improves appearance and hides minor defects.
Electrochemical process for aluminum. Adds corrosion resistance and decorative color (black, red, blue, etc.).
A process that alters the internal structure of metal to improve hardness, strength, and wear resistance.
Colored powder is electrostatically applied and heat-cured. Offers excellent durability, wear and corrosion resistance.
Electropolishing is an electrochemical process that smooths and brightens metal surfaces, improving corrosion resistance and creating a clean, reflective finish.
Deposits a thin metal layer (nickel, chrome, zinc, etc.) onto the surface. Enhances appearance, wear and corrosion resistance.
Produces fine linear surface texture using abrasive tools. Often used for aluminum or stainless steel. Offers a sleek, technical look.
Chemical treatment for stainless steel. Removes free iron and enhances corrosion resistance without changing appearance.
Common for steel parts. Adds a thin black protective layer. Improves appearance and mild corrosion resistance.
Our CNC machines operate with precision tolerances that meet industry standards, ensuring that every part is consistently accurate and fits perfectly with other components.
Metals : ISO 2768-m
Plastics : ISO 2768-c
HuaZheng can manufacture and inspect parts with strict tolerances according to your drawing specifications and GD&T annotations, including tolerances tighter than +/- 0.001 inches.
0.5mm
0.5mm
1mm
CNC Milling: 3000*1200*500 mm
CNC Turning: 300*600 mm
CNC Milling: 5×5 ×5 mm
CNC Turning: 2×2 mm
Prototoyping: 1-100 pcs
Low volume: 101-10,000 pcs
High volume: Above 10,001 pcs
5 bussiness days for most projects.
Delivery of simple parts can be as fast as 1 day.
Our CNC machines operate with precision tolerances that meet industry standards, ensuring that every part is consistently accurate and fits perfectly with other components.
In CNC machining, sharp internal corners on a workpiece will naturally form rounded corners (radii). The depth must not exceed 12 times the diameter of the drill. For end mills, the depth must not exceed 10 times the diameter of the tool.
Diameter Φ 1.5-5 mm, depth: 3 times the diameter.
Diameter Φ 5 mm or larger, depth: 4-6 times the diameter.
RapidDirect can produce threads of any specification and size as required by the customer.
Square profiles, full radius, dovetail profiles.
CNC Milling: Minimum width of 0.5 mm and depth of 0.1 mm.
CNC Turning: RapidDirect can use laser marking to create standard text for CNC turned parts.
RapidDirect can create standard text via CNC engraving or laser engraving as per customer requirements.
I had many projects with HuaZheng and all of them were perfect. They really supported us a lot, sometimes the lead time is urgent, they can also make it more than we expected. The parts are just awesome, and I will have more projects with them.
Senior Marketert
HuaZheng really surprised me with their speed and quality. The parts are always nice and fast. By the way, their DFM helped us save a lot. Many of our suppliers are not able to do DFM while HuaZheng can offer us professional suggestions.
Senior Marketert
We cooperated with HuaZheng for many years, and now most of my CNC projects will be released to them. Their service is excellent and they also support assembly, the parts are just delicate for our application.
Senior Marketert
Our team will offer free DFM as per every project and if the material you choose is not the best choice for your project, we will suggest you some materials for you to choose from.
It will depend on the structure of the design. If the part is a simple lathe part or CNC part, it may be more cost-effective to proceed with machining.However, if the structure is kind of complex and may need 5-axis CNC to make it, prototype molding will be a better choice in this case.
Normally, we will quote as per the tolerance standard mentioned on 2D drawings. For CNC metal parts, we will proceed with ISO 2768-M while for plastic parts, we will proceed with ISO 2768-F if no special requirement. Any crucial dimensions should be mentioned on the 2D drawings or to our project engineers directly.
Yes, we can offer design services for those companies without their own design team. However, for this issue, it will take longer communication time and once the need is fixed, we will charge you before we proceed with the drawing for you.
For testing, 3D printing is fast and cost-effective. But for structural testing, 3D printing may not be a good choice as the quality is not very stable. CNC machining will proceed the part with one piece of raw material, so it is more suitable for structural parts. There are few available finishes for 3D printing. You can have more options with CNC machining.
The parts will follow self-inspection, mutual inspection, and final inspection in TurnkeyModel. When the parts move to the next process, the parts will be tested again to make sure the previous processes are okay.Before we ship out the parts, our QC team will take strict quality inspection all over and only ship them when everything is okay.
Indeed hourly price for 3-axis CNC is much lower than for 5-axis CNC. When we quote, we compare the cost of multiple machining plans and choose the best solution. If some features are impossible to proceed with the 3-axis or other machines, we have to proceed with the 5-axis.
If the parts are not available for your requirements, please kindly contact us once you found them(We ensure 30-day-guarantee) and send us some pictures or videos with our official claim report, which will help us find the result for the issue. All detailed information about the claim issues would be sent within 3 working days.
For turning parts, we can make them with 2D drawings. For milling parts, our engineering team can work out 3D drawings for your checking then. If the drawing is confirmed, we will proceed accordingly.
We fully understand sometimes it is hard to choose a suitable material. In this case, you can share all the details about your design with our project engineer, for example, usage, function, working conditions, and anything related, then our project engineer will come back to you with DFM and suggest you some options for you to decide.
Manufacturing parts is not our goal, our value is helping customers grow their businesses. The engineering team with 20+ years of work experience provides free DFM reports with you to help you reduce procurement risks and manufacturing costs.
Analyze manufacturing risks
Optimize part design
Improve machining efficiency
Save processing costs
Control production quality
Whether the material could be bought
Whether the material is okay to be machined by CNC
Whether the material is available for customers’ chosen surface finish
Analyze if dimensions from 2D and 3D drawings did not match
Analyze if the surface roughness can meet the requirement
Analyze whether the parts need to be assembled together
Analyze if the structure of part is suitable for CNC machining
Analyze whether the wall thickness, hole, undercut, inner right angle features can be machined by CNC machining
Whether dimensional tolerance and tolerance of form and position can meet the requirement
Whether the part will deform and influence dimensional tolerance during machining and welding
Whether the surface finish process will influence the dimensional tolerance
The structure of the part is the biggest factor influencing the machining cost. Why is the cost control of your competitors more advantageous? You are just overlooking some details.
The cutters are round and cut off the extra material by rapid turning of the blade. In this case, there is nothing the cutter can do about right-angle features. If the right angle feature is a must, it will cost you more money on it. Changing the inner feature to be radial is the best solution to lower cost if it does not influence further assembly. Ideally, the internal fillet diameter of plastic parts is at least 1 / 9 of the cavity depth. The aluminum parts shall be at least 1 / 8, and the steel parts shall be at least 1 / 6 of the cavity depth.
Thin walls are fragile. If the cutter moves too fast, the thin walls will be rough due to the cutter bounce. The distance between holes and edges should be enough. Ideally, the distance from the hole to the edge of the plastic part shall be at least 0.8mm, and for the metal part, it shall be at least 0.5mm.
Deep cavities need to move away a lot of excess material which increases machining costs accordingly. Sometimes we have to make a customized cutter for the features and it will also increase the cost. Ideally, the maximum depth of cavities for plastic parts shall be 9 times the diameter of the cutter. For aluminum parts shall be 8 times while for steel parts shall be 6 times. The minimum cutter diameter is determined by the inner radial feature diameter. For example, if the inner radial feature is R1, the minimum cutter diameter which can be used is R1.
Undercutting often requires custom cutters. The cost of cutters will be added to the machining cost as well. So, only make it when absolutely necessary.
Deep holes have high requirements on the strength of the reamer. Ideally, the maximum hole depth of plastic parts shall be 10 times the diameter of the reamer. The aluminum parts shall be 8 times, while the steel part shall be 6 times. If your design is out of scope and requires custom cutters or process change, there shall be an extra cost.
Too long threads will not make the assembly tighter or closer. If the hole depth is greater than 3 times the hole diameter, the tap will have a break risk and we will spend more time on the deep hole. In fact, a thread depth of 1.5 times the diameter is enough to assemble the part securely.
During quotation-professional DFM feedback
Once order placed-professional project & order management, projects review to offer manufacturable analysis and solution
Process management-project management and coordination with feedback or report
Quality control plan SOP-special requirements and responsible staff for every process
Shipping standard-inspection report and packing standards for various shipping methods
With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.
With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.
With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.
With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.
CNC is widely used in the automotive, communications, medical, watch, cell phone, computer, and other industries, which is more suitable for some industries that require high precision.
Including 3, 3+1, 3+2, 4+1, 5 axis
Max part size: 3200*2200*1000mm
Min dimensional tolerance: ±0.005mm
Including turning and mill-turning
Max part size: φ600*500mm
Min dimensional tolerance: ±0.005mm
Including gear milling and hobbing
Min concentricity: ±0.008mm
Min dimensional tolerance: ±0.005mm
We can support “Design-> Manufacture- >Assembly”one-stop delivery,Save communication time & cost,No need to find other partners for different processes
DFM report will help you
optimize design if necessary, it will
be helpful to lower budget andshorten lead time
Ensured quality
Self-inspection
Mutual inspection
Professional Inspection
Project engineer will confirm all details including standards with you.
Free DFM report will be sent to help lower manufacturing risk and cost as well.
Photos from every step will be uploaded timely.
Strict quality control processes will be taken in HuaZheng to ensure the quality.
The tracking No. will be sent to your portal.
Materials
Model Number
2000 Series Aluminum：AL2014, AL2017, AL2030
5000 Series Aluminum：AL5052, AL5754, AL5083
6000 Series Aluminum： AL6060, AL6061, AL6082
7000 Series Aluminum：AL7075
Stainless Steel: SUS303, SUS304, SUS316
Tool Steel: 1.2311, 1.2363, 1.2379, 1.2767
Carbon Steel: Q235, Q275, S45C
Alloy Steel: 4140, 4130, 4340
POM, ABS, PC, ABS+PC, PTEF, PEEK, HDPE, PP, PA, Nylon, PMMA, PET, PEI, PPS, PVC, PE
TC2, TC4, TC5
Military-grade Titanium Alloy
Food-grade Titanium Alloy
R53400 Titanium Alloy
Materials
Model Number
Copper 101, Copper 110, Copper 122, Copper 145, Copper 172, Copper 182
H62, H65, H68, H70
AZ91D, AZ31B
Zinc alloy
From automotive to aerospace, Huazheng's CNC machining meets the need for precision in a variety of industries. We work with independent inventors, designers, and major corporations to serve over 20,000 customers worldwide.
+86 13421341931
Building 4, Wanfeng Dazhonggang Industrial Zone, Shajing Town, Bao'an District, Shenzhen, China
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