Custom CNC Machined parts are manufactured using CNC technology and are specifically tailored to meet the designs and industry requirements of individual customers. Unlike standard parts, they are adapted to unique dimensions, shapes, and functions, and are designed to solve specific operational challenges. This section will explore their core characteristics and their significance for modern enterprises.
CNC machining uses programming to control lathes or milling machines, ensuring that each part has highly consistent precision. Whether it's a tiny bracket or a large industrial component, the focus is on meeting precise requirements.
Shengpeng Hardware specializes in transforming these custom designs into components. Our team works closely with customers to understand their requirements, covering aspects from material selection to performance targets. This collaborative approach ensures that each custom CNC-machined component not only fits perfectly but also enhances the functionality of the final product.
Unlike standard parts, custom CNC-machined parts do not require modification. This saves time and reduces material waste. These components are manufactured in a way that seamlessly integrates with the existing system. For industries that have strict requirements for precision, customization is a significant transformative factor.
Customized CNC machined parts can be mainly divided into two categories: CNC turning machining parts and CNC milling machining parts. Each type adopts different processes to manufacture components, and each has its own unique advantages, suitable for different application scenarios. Next, we will compare these two types and explain which one should be chosen in your project.
CNC turning is a process where the workpiece rotates on a lathe and is machined by a cutting tool. This technique is particularly suitable for cylindrical products, as rotation ensures consistency in accuracy. Shengpeng Hardware's CNC turning machine can handle materials such as aluminum, steel, and brass, and can produce parts with very narrow tolerances (typically as low as ±0.001 inches).
Common components of CNC turning machine parts include bolts, shafts, bushings and pins. These components are crucial in automotive engines as they must be able to withstand high-speed rotation and high-pressure environments. For instance, the CNC lathe processing of shafts for automotive transmissions requires precise diameters and lengths to avoid friction or damage.
Sheng Peng's technical expertise in CNC turning is applicable to both small-batch and large-batch production. Whether it's 50 samples or 10,000 units, our automated system can ensure that every product meets the high-quality standard. We also offer subsequent processing services such as threading or polishing to meet other requirements of our customers.
CNC milling technology removes material from a stationary workpiece using a rotating cutting tool. This process is particularly adept at creating complex, non-cylindrical shapes such as gears, brackets and housings, and can produce fine details such as holes, slots or cavities. Shengpeng's CNC milling machines support 3-axis, 4-axis and 5-axis operations to achieve maximum flexibility.
The parts processed by CNC milling have been widely applied in the aerospace and electronics fields. For instance, the milling brackets customized for the aircraft avionics system must be able to fit into the narrow spaces and firmly fix the sensitive components. Our five-axis milling machine can complete the processing of these complex geometries in one clamping, thereby shortening the production time and improving the accuracy.
Material compatibility is another major advantage of our CNC milling service. We can handle metals (such as stainless steel, titanium) as well as plastics (such as ABS, polyetheretherketone), and even composite materials. This versatility enables us to meet the diverse material requirements of various industries, ranging from medical equipment (requiring biocompatible plastics) to industrial machinery (requiring high-strength metals).
| Aspect | CNC Turning Machine Parts | CNC Milling Machined Parts |
|---|---|---|
| Core Process | Rotates workpiece; cutting tool shapes externally | Stationary workpiece; rotating tool removes material |
| Ideal Shapes | Cylindrical (shafts, bolts, bushings) | Complex, non-cylindrical (gears, brackets, housings) |
| Tolerance Range | ±0.001–±0.005 inches | ±0.0005–±0.003 inches (tighter for 5-axis) |
| Common Materials | Aluminum, steel, brass, copper | Stainless steel, titanium, plastics, composites |
| Key Industries | Automotive, manufacturing, plumbing | Aerospace, electronics, medical, defense |
| Production Speed | Faster for high-volume cylindrical parts | Faster for complex, low-to-medium volume parts |
Shengpeng Hardware's advantages: high precision, customer cooperation, industry experience. we are reliable supplier for custom CNC machining parts. This section will focus on the key reasons why enterprises in various industries choose us.
First, our investment in advanced equipment sets us apart. We use state-of-the-art CNC turning and milling machines, including 5-axis mills michine and high-speed lathes michine, to ensure every part meets custom standards. Regular maintenance and software updates keep our machines operating at peak performance, minimizing errors and delays.
Secondly, our team combines professional skills with hardware industry knowledge. Our engineers have many years of experience in custom CNC machining. For instance, they help change materials to reduce costs, or adjust the geometric shape to enhance durability. Provide solutions to customers.
Third, we prioritize on-time delivery. We understand that delays in custom parts can hold up entire production lines. That’s why we use lean manufacturing practices to streamline our workflow, from design approval to final shipping. For urgent orders, we offer expedited services without compromising quality.
Finally, our commitment to transparency builds trust. We provide clients with regular updates throughout the production process, including design reviews, material sourcing confirmations, and quality checks. If issues arise, we address them proactively, ensuring clients are never in the dark.
Customized CNC-machined parts are of vital importance in numerous industries. Each industry has its own unique requirements for precision, durability, and material performance. Shengpeng Hardware Company customizes its services according to the specific needs of each industry, providing products that can enhance efficiency and reliability.
The automotive industry relies on customized numerical control processing components for engines, transmissions and chassis systems. Numerical control turned components such as crankshafts and piston pins must be able to withstand extremely high temperatures and pressures, while numerical control milled components like gearboxes require precise alignment to prevent oil leakage.
Shengpeng collaborates with automobile manufacturers and suppliers to produce components that meet the standards of original equipment manufacturers. We use high-strength materials such as alloy steel and aluminum, and our quality inspection includes size testing and stress analysis. This ensures that each component can enhance the safety and performance of the vehicle.
The applications in the aerospace field have extremely high requirements for precision - even a tiny defect on a component could lead to disastrous consequences. Shengpeng's CNC milling processing products, such as aircraft engine components and aviation electronic equipment brackets, all comply with the AS9100 standard, which is the benchmark standard for aerospace quality worldwide.
We use materials like titanium and Inconel, which offer high strength-to-weight ratios and resistance to extreme temperatures. Our 5-axis milling machines create complex shapes with minimal setup changes, reducing the risk of errors. For aerospace clients, we also provide full traceability, documenting every step of production.
The medical industry requires custom-made, numerically controlled processed components that must possess the characteristics of biocompatibility, disinfection capability, and high precision. For instance, surgical instrument components (such as surgical knife handles, which are processed through numerical control lathes) and diagnostic equipment casings (components processed through numerical control milling).
Shengpeng uses materials like medical-grade stainless steel and PEEK plastic, which are safe for human contact and can withstand repeated sterilization. Our cleanroom-compatible processes prevent contamination, and we adhere to ISO 13485 standards for medical device manufacturing. This ensures our parts meet the strict regulations of the medical sector.
Electronics devices—from smartphones to industrial sensors—need small, precise custom CNC machined parts. These include connector pins (CNC turning) and heat sinks (CNC milling), which must fit into tight spaces while performing their functions.
Shengpeng specializes in micro-processing in the electronics field and is capable of manufacturing components with diameters as small as 0.005 inches. We use materials such as copper (for conductivity) and aluminum (for heat dissipation), and our quality inspection includes optical testing to ensure that the minute details meet the specification requirements.
At Shengpeng Hardware, we follow a structured, client-focused process to create custom CNC machined parts. This process ensures accuracy, transparency, and on-time delivery, from initial design to final shipping.
This process begins with a detailed discussion with the client. We will review their design documents (CAD models, drawings), understand the requirements: the purpose of use, materials, tolerance requirements, and production volume. Our engineers will provide feedback to optimize the design - for example, suggesting adding rounded corners to reduce stress points, or adjusting the dimensions to facilitate processing.
This step is critical for avoiding costly reworks later. We work with clients to resolve any design issues upfront, ensuring the final part meets all their needs. Once the design is approved, we provide a detailed quote, including material costs, machining time, and delivery dates.
Next, we source high-quality materials from reliable suppliers. We offer a variety of options, ranging from metals (aluminum, steel, titanium) to plastics (ABS, PEEK) and composite materials. Each material undergoes quality inspection.
Once materials are received, we prepare them for machining. This includes cutting raw stock to the correct size and securing it in the CNC machine. For sensitive materials (like titanium), we use specialized clamping tools to prevent warping during machining.
Depending on the part’s design, we use either CNC turning or milling equipment. For cylindrical parts, our CNC turning machines rotate the workpiece while a cutting tool shapes it. For complex shapes, our CNC milling machines (3-axis to 5-axis) remove material with precision.
Our operators monitor the machining process in real time, using software to track tolerances and make minor adjustments. We also use automated tool changers to reduce setup time, especially for high-volume orders. This ensures consistent quality across every part.
After machining, parts undergo post-processing to meet additional requirements. This may include:
Threading: Adding screws or bolts for assembly.
Polishing: Creating a smooth surface finish for aesthetics or functionality.
Coating: Applying plating (zinc, nickel) or paint to improve corrosion resistance.
Heat treatment: Strengthening metals for durability.
Each post-processing step is tested to ensure it meets the customer's specification requirements. For instance, the zinc coating treatment carried out on the parts of the CNC turning machine will have its thickness and adhesion checked.
Quality control runs through every step of the entire production process. However, before shipment, we will conduct a final inspection. We use advanced equipment to measure the dimensional accuracy and ensure that the dimensional errors of the parts are within the required range.
If a part fails inspection, we identify the issue and correct it immediately. We document all inspection results, providing clients with a quality report for their records.
Finally, we will package the components to prevent damage during transportation. For fragile or valuable components, we will use custom packaging with foam fillers or protective films. We will collaborate with reliable transportation partners to ensure timely delivery and provide customers with tracking information so that they can monitor the progress of their orders.
For custom-made CNC processed parts, quality cannot be compromised - even the slightest deviation could lead to equipment failure, safety hazards or production delays. At Shengpeng Hardware Company, we strictly adhere to quality control standards to ensure that every product can meet or exceed the requirements of our customers.
We hold industry-recognized certifications that validate our commitment to quality:
ISO 9001: This standard ensures our quality management system is consistent and effective, covering everything from design to delivery.
AS9100: For aerospace clients, this certification confirms we meet the strict quality requirements of the aerospace industry.
ISO 13485: For medical parts, this standard ensures our processes comply with medical device regulations, including biocompatibility and sterilization.
These certifications are not just labels—they require regular audits and continuous improvement. This ensures our quality control processes remain up-to-date with industry best practices.
To verify the accuracy of custom CNC machined parts, we use advanced inspection tools:
Coordinate Measuring Machines (CMMs): These 3D measurement tools capture thousands of data points, checking if parts match the original design within tight tolerances.
Optical Comparators: For small or intricate parts, these tools use light to project a magnified image of the part, making it easy to spot deviations.
Hardness Testers: We test metal parts to ensure they have the correct hardness for their intended use—critical for parts that must withstand wear or pressure.
Surface Roughness Testers: These tools measure the smoothness of a part’s surface, ensuring it meets aesthetic or functional requirements (e.g., a smooth surface for a seal).
Every part undergoes at least one inspection, and critical parts are inspected multiple times throughout production. This rigorous testing ensures no defective parts leave our facility.
Quality control is not a one-time process, but rather a continuous one. We regularly review our quality data to identify trends or areas that need improvement. If multiple components from a certain machine show minor deviations, we will adjust the calibration settings of the machine or update the processing program.
We also encourage customers to provide feedback. If a customer reports a problem with a certain component, we will investigate the root cause in depth and take measures to improve it to prevent such problems from recurring. This commitment to continuous improvement helps us ensure that we provide customers with the highest quality custom CNC machining components.
Ordering custom CNC machined parts requires careful planning to ensure you get the right components for your needs. Below are key factors to consider, with insights from Shengpeng Hardware to help you make informed decisions.
The first step is to define clear specifications for your part. This includes:
Dimensions and Tolerances: Be specific about length, width, height, and allowable deviations (e.g., ±0.002 inches). Tighter tolerances may increase costs, so balance precision with practicality.
Material Selection: Choose a material that matches the part’s function—for example, aluminum for lightweight parts, stainless steel for corrosion resistance, or titanium for high-strength applications.
Surface Finish: Decide if you need a smooth polish, coating, or other finishes, as these affect both aesthetics and performance.
Shengpeng’s engineers can help you refine these specifications, ensuring they are both achievable and cost-effective. Providing detailed CAD models or blueprints will also reduce the risk of misinterpretation.
Consider your production scale - are you ordering a small number of samples (1 to 10 pieces), a small batch (10 to 100 pieces), or a large batch (more than 1000 pieces)? This will affect the processing flow: samples may be processed using a faster clamping method, while large batches can benefit from automated production.
Delivery time is also a key factor. Urgent orders may be achievable, but the cost may be higher. At Shengpeng, we will provide a clear estimated delivery time at the beginning and will negotiate with the customer to adjust the production plan (for example, prioritizing the production of prototypes for time-sensitive projects).
Custom CNC machined parts vary in cost based on complexity, material, and volume. To optimize costs:
Simplify Design: Avoid unnecessary complexities (e.g., oversize holes or intricate details) that increase machining time.
Choose the Right Material: More expensive materials (like titanium) may not be needed if a cheaper alternative (like aluminum) works for your application.
Order in Bulk: Larger volumes often lead to lower per-unit costs, as setup time is spread across more parts.
Shengpeng provides transparent pricing, with no hidden fees. We also offer cost-saving suggestions, like material substitutions or design adjustments, to help you stay within budget.
Don't forget to consider the requirements for subsequent processing. Do your components need drilling, coating or heat treatment? These steps will increase time and cost, so include them in the initial order so that there will be no delays in the future.
At Shengpeng, we offer comprehensive post-processing services, so you don't need to collaborate with multiple suppliers. We can also provide you with advice and tell you which post-processing steps are crucial for the performance of your parts - for example, zinc plating for outdoor CNC turning machine parts to prevent rusting.
A1: We use a variety of materials to meet the needs of different industries, including metals (aluminum, steel, titanium, brass), plastics (ABS, polyetheretherketone, nylon, acrylic), and composite materials (carbon fiber reinforced polymers). Our team will assist you in choosing the most suitable material based on the function, environment and budget of your part.
A2: The delivery time depends on factors such as the complexity of the components, the production quantity, and the subsequent processing requirements.
For samples (1 to 10pcs), the delivery time is usually 3 to 7 working days.
For small batch products (10 to 100pcs), it is 7 to 14 working days.
For large batch products (more than 1000 pcs), it is 14 to 21 working days.
We also provide expedited service for urgent orders.
A3: Yes, small batch orders (10 to 100 pieces) are highly suitable for sample production, testing, or small-scale applications. Our flexible CNC machines and lean production processes enable us to efficiently manufacture small batch products without any minimum order quantity restrictions. Moreover, we maintain the same quality level for both small batch products and large batch products.
A4: The components we manufacture using custom CNC processing technology meet multiple industry-leading standards, including ISO 9001 (general quality management), AS9100 (aerospace quality standards), and ISO 13485 (medical device quality standards). These certifications ensure the stability and reliability of our component quality, and that it complies with global industry standards. Additionally, for each order, we provide a quality report, which includes inspection results and traceability information.
A5: We implemented a multi-layer precise control measure: advanced 3-axis to 5-axis CNC milling machines, real-time software monitoring during the processing, and post-processing inspections using coordinate measuring machines and optical comparators.
A6: Yes, we offer a complete set of post-processing services to enhance the functionality and appearance of your components. These services include thread machining (internal/external threads), polishing (for achieving a smooth surface), coating treatment (galvanizing, nickel plating, anodizing, powder coating), heat treatment (annealing, quenching, tempering), and assembly (applicable to multi-component assemblies). All post-processing steps are carried out internally, ensuring quality control and accelerating the delivery speed.
A7: We provide services to numerous industries, covering areas such as automobiles, aerospace, healthcare, electronics, manufacturing, and pipeline engineering. We can customize components according to specific industry standards, and we have become trusted partners in each of these industries.
The ordering process is very simple:
1) Contact our team via email, phone or our website, and share your design files (CAD models, drawings) as well as your requirements (materials, quantity, tolerances).
2) Our engineers will review your design and provide feedback, along with a detailed quote and estimated delivery time.
3) Once you approve the quote and design, we will purchase the materials and start production.
4) During the production process, we will provide regular updates.
After the quality inspection is completed, we will attach a tracking number to your product for shipment. Our team is always ready to answer any questions throughout the process.
