Custom CNC Metal Machining Services Company – Metal Machined Parts Manufacturer in China
At Junying, we offer quick-turn custom metal CNC machining services for your specific applications across a wide variety of industries, whether you can rapid prototypes, high volume machined metal parts or affordable small batches. Our highly skilled engineers and factory employees can provide the most effective and cost-efficient solutions for your project, years of experience and the fully equipped machine shop allow us to produce high-quality functional CNC metal machining components and assemblies with high efficiency and productivity. We have 5-axis machining centers and Swiss-type machines, as well as other high-performance tools, run for manufacturing and measurement. If you are looking for a metal machining company for both small and large-sized CNC metal parts, Junying is one of the best choices. You’ll have a host of metal materials to choose from, including aluminum, steel, stainless steel, brass, copper, bronze, titanium, etc., various grades of these metals are provided to achieve the highest standards of required products.
Why Choose Junying CNC Metal Machining Services?
- High quantity of CNC machining metal parts at reduced cost and time.
- Improvements and suggestions on the design of metal parts to fit applications more.
- Well-equipped and organized machining environment and strict quality control.
- A wide selection of popular metal materials for CNC machining.
- High-standard products for demanding and critical applications and industries.
- High flexibility in production dimensions, quantities, complexity, and technologies.

JunYing’s Capacity of CNC Metal Machining Services
With many years of rich experience and advanced automated processing lines, JUNYING is able to provide a full range of advanced metal CNC processing methods, allowing global customers to easily obtain metal parts or products with the required geometry, size, performance or surface quality. Our services mainly include CNC milling, CNC turning, CNC Electrical Discharge Machining (EDM), etc.
CNC Metal Milling
Drawing on years of providing metal machining services for tens of thousands of clients in China and worldwide, JUNYING offers high-precision, customized metal CNC milling services. We support 3-axis, 4-axis, 5-axis, and even more advanced CNC milling processes to meet customers’ diverse needs for complex structures and high-precision metal components, delivering efficiently whether for single prototypes or batch production.
- Multi-axis Machining Capability: Supporting 3-axis, 4-axis, 5-axis, 6-axis, and even 7-axis CNC milling, we can process complex curved surfaces and multi-angle structures, meeting the manufacturing demands for high-difficulty metal parts.
- Diverse Metal Material Options: Able to machine more than 40 types of metals, including various aluminum alloys, steel, stainless steel, copper, brass, titanium alloys, balancing structural strength and functional characteristics.
- High Precision Control: Capable of achieving ISO and other international tolerance standards, meeting stringent requirements for dimensions and accuracy in various application scenarios.
- Large Size Machining Capacity: Able to support milling of large-scale metal components, fulfilling manufacturing requirements for large structural parts and complex components.
- Rapid Design Feedback: Through our real-time quotation engine, our engineers can promptly provide design-for-manufacturability advice, optimizing metal milling processes and costs.
- Flexible Design Implementation: Customers can quickly move from CAD drawings to finished products, facilitating design optimization and product iteration, reducing time costs for R&D and prototyping.
CNC Metal Turning
JUNYING, through advanced CNC turning centers, provides customers with high-quality, customized metal turning component production services. We can quickly respond to on-demand manufacturing needs for various metal parts, efficiently delivering from single prototypes to large batch production, covering a range of metal materials and precision complex structures.
- Ultra-high Precision and Multiple Tolerance Options: Supporting ISO 2768, ISO 286, and other tolerances to meet the needs of precision parts.
- Wide Range of Metal Materials: Covering more than 30 types of metals, including aluminum, steel, stainless steel, copper, brass, titanium, balancing strength, corrosion resistance, and functionality.
- Support for Large Size and Deep Hole Turning: Adapting to various size requirements, supporting customer-specified maximum depth and length for metal turning, ideal for long shafts and deep hole metal parts.
- High Concentricity and Surface Finish: CNC turning processes achieve extremely high coaxiality and excellent surface finish, meeting the manufacturing needs for precision components.
- Complex Structure Machining Capability: Supporting multi-turret, live tooling, and other compound turning processes, allowing one-time shaping of complex structures, improving efficiency and reducing clamping errors.
- Real-time Manufacturability Feedback: Real-time manufacturability analysis based on turning processes helps optimize design, enhancing process feasibility and production efficiency.
CNC Metal Drilling
JUNYING also offers customers high-precision, flexible batch metal CNC drilling services. With various types of CNC drilling machines and extensive process experience, we can complete precision drilling on various metal materials, meeting different design and industrial application needs for both simple through holes and complex patterns.
- Strong Large Diameter Drilling Capability: Supporting drilling diameters up to 7 cm, suitable for oversized or specially structured metal workpieces.
- Diverse Drilling Forms: Capable of straight holes, deep holes, blind holes, compound patterns, and more, meeting complex structural requirements.
- High-precision Drilling: Tolerances up to ±0.02 mm to 0.005 mm, ensuring assembly precision and part consistency.
- Integrated Multi-process: Supports vertical, bench, radial, and other drilling machine choices, flexibly adapting to different sizes and shapes of metal parts.
- Wide Material Compatibility: Can process aluminum, steel, stainless steel, copper, brass, titanium, and other metals, suiting most industrial applications.
- Support for Complex Batch Production: Efficient and stable completion of both small batch customization and large batch orders, suitable for diverse project demands.
Metal EDM Maching
JUNYING offers high-precision metal EDM (Electrical Discharge Machining) services, efficiently completing complex profiles, ultra-fine structures, and high-hardness metal precision machining. Equipped with advanced EDM machines and an experienced engineering team, we serve a wide range of industrial applications such as molds and precision parts, helping customers achieve structural designs and functional requirements that traditional cutting processes cannot fulfill.
- Processing of Complex Inner Profiles and Sharp Angles: EDM easily achieves deep grooves, sharp angles, blind holes, and irregular cavities that traditional tools cannot process.
- Stress-free Processing of High Hardness Metals: Suitable for high-hardness or high-strength metals, requiring no additional heat treatment and causing no mechanical stress or deformation.
- Ultra-high Machining Precision and Surface Quality: Achieves micron-level tolerances and excellent surface finishes, meeting high-precision and high-requirement part manufacturing.
- Suitable for Micro and Tiny Component Machining: Supports processing of extremely small sizes, narrow gaps, and minute details, widely used in precision molds and micro-part production.
- Unparalleled Flexibility Compared to Other Processes: Not limited by material hardness or complexity, making it an irreplaceable supplement to traditional CNC cutting processes.
CNC Metal Cutting
JUNYING provides efficient and precise CNC metal cutting services, including laser cutting, plasma cutting, waterjet cutting, and other advanced techniques. We can flexibly select the optimal cutting solution according to different materials and part structures, enabling efficient and consistent component production, widely applied in machinery manufacturing, automotive, aerospace, and many other fields.
- Diverse Cutting Process Options: Depending on material thickness, structural complexity, and precision requirements, choosing among laser, plasma, or waterjet cutting for efficient processing from thin to thick plates.
- High Cutting Precision and Edge Quality: Clean, precise cutting lines and smooth, neat edges reduce the need for further grinding or processing.
- Strong Capability for Complex Shapes and Irregular Parts: Supports accurate cutting of arbitrary profiles and complex inner and outer shapes, easily meeting both standard and customized needs.
- Large Size and Batch Cutting Support: Able to process large-format metal sheets, suitable for large structural components and batch production, improving efficiency.
- Low Thermal Impact: Some cutting processes (like waterjet) enable cold processing, effectively avoiding deformation or performance changes, suitable for heat-sensitive materials.
Other Metal Machining Services
Other auxiliary metal processing processes include CNC forging, CNC casting, and metal forming processing. These processes can be flexibly selected according to part structure, performance requirements and material properties, and are important supplementary means for batch manufacturing, complex structures or high-strength metal parts. Different processes have their own advantages. It is necessary to combine specific equipment configuration and material properties to reasonably select the most suitable metal processing method to achieve the best structural performance and production efficiency.
Metal CNC Machining Materials & Services at Junying
We have a wide range of metal materials that can be selected according to your needs, more additional material requests please contact us.
1. CNC Machining Aluminum
Aluminum Alloy 6061 | 3.3211 | 65028 | AlMg1SiCu
Aluminum Alloy 6063 | EN AW-6063 | 62400 | AlMg0,7Si
Aluminum Alloy 5052 | EN AW-5052 | 3.3523 | AlMg2,5
Aluminum Alloy 2024 | 3.1255 | 24345 | AlCu4SiMg
Aluminum Alloy 7075 | 3.4365 | 76528 | AlZn5.5MgCu
Aluminum Alloy 7050 | EN AW-7050 | 3.4144 | AlZn6CuMgZr
2. CNC Machining Brass
Brass Cz121 | C38500 | 2.0401 | CuZn39Pb3
Brass C360 | 2.0375 | CuZn36Pb3 | 319 grade 2
3. CNC Machining Copper
Copper Alloy 101 | CU OFE
Copper Alloy C110 | CU ETP
4. CNC Machining Bronze
Copper Alloy C932

5. CNC Machining Stainless Steel
Stainless Steel Alloy 316|316L | 1.4401|1.4404 | X5CrNiMo17-12-2|X2CrNiMo17-12-2
Stainless Steel Alloy 416 | 1.4005 | X12CrS13
Stainless Steel Alloy 410
Stainless Steel Alloy 420 | 1.4028 | X30Cr13
Stainless Steel Alloy 440C | 1.4125 | X105CrMo17
Stainless Steel Alloy 17-4 | 1.4542 | X5CrNiCuNb16-4 – Annealed state
Stainless Steel Alloy 18-8
6. CNC Machining Steel
Steel Alloy 4130
Steel Alloy 4140 | 1.7225 | EN19 | 42CrMo4
Steel Alloy 1018
Steel Alloy 1215 | EN1A | 1.0715
Steel Alloy 4140PH
Steel Alloy 4340 | 1.6511 | 36CrNiMo4 | EN24
Steel Alloy A36
7. CNC Machining Titanium
Titanium Grade 2 | 3.7035
Titanium Grade 5 | 3.7164 | Ti6Al4V

Surface Treatment For CNC Machined Metal Parts
JUNYING not only provides customers with high-precision, high-efficiency CNC metal machining services, but also supports a variety of metal surface treatments. Based on the performance and appearance requirements of different parts, we recommend and implement professional surface treatment solutions to enhance corrosion resistance, mechanical properties, and aesthetics, helping customers obtain high-quality custom parts.

- Anodizing (Type II, Type III/hard anodizing, with customizable colors)
- Powder coating (variety of color choices, tougher and more uniform surfaces)
- Electropolishing (improving brightness, reducing corrosion)
- Passivation (enhancing corrosion resistance, commonly used for stainless steel)
- Chemical nickel plating (uniform protection, improves corrosion and wear resistance)
- Gold plating (improves conductivity and corrosion resistance)
- Zinc plating/Hot-dip galvanizing (enhances rust resistance)
- Black oxide (reduces reflectivity and improves rust resistance)
- Annealing (improves mechanical properties, facilitates further processing)
- Surface hardening (e.g., nitriding, increases surface hardness and wear resistance)
- Tempering (adjusts hardness and toughness)
- Quenching (overall hardening, improves wear and deformation resistance)
- Custom surface treatments (special processes available upon request)
What is Metal Machining?
The process of removing raw materials from a block and creating a part with the desired shape and size while using computer numerical controlled machine tools is known as CNC machining. Metal machining performs different types of CNC machining techniques on machines tools to process various metal materials, such as brass, steel, aluminum, etc. Metals are ideal choices for CNC milling, turning, and drilling because of their great mechanical properties, including strength, hardness, resistance, and durability, but different types of metals differ much in their machinability, which affects their uses in CNC factories.
What Metals Are Used in CNC Machining?
CNC machining is a great option to make metal parts with high precision and accuracy, what metals can be machined with CNC machines?
- Aluminum: aluminum is probably the most widely used CNC milling material. The high machining speed of CNC aluminum machining makes aluminum a more useful material for CNC manufacturing. Aluminum is widely used in the production of aircraft parts, automobile parts, bicycle frames, and food containers because of its lightweight, non-magnetic, corrosion resistance, and low price.
- Stainless steel: stainless steel alloys are not affected by most stains and rust. The material is favored for its strength and corrosion resistance and can be used in anything from surgical equipment to electronic hardware. Stainless steel is a widely used CNC machining material, which is strong and durable, expanding its application in various industries.
- Carbon steel: carbon steel is also one of the popular materials used in CNC machining. It has a variety of types to choose from depending on your application requirements. Due to its durability, safety, long shelf life, economic and environmental protection, the material is mainly used for CNC metal machining.
- Brass: brass is widely regarded as one of the easiest and most cost-effective materials for precision machining services. It is selected to manufacture complex parts requiring complicated functions. Brass is easy to process, smooth and clean. It can be used to manufacture medical equipment, consumer goods, electronic hardware and contacts, accessories, commercial products, etc.
- Titanium: titanium is heat-resistant and corrosion-resistant, which makes it a feasible choice for many industrial applications. Titanium is not affected by salt and water. It is widely used in the manufacture of medical implants, aircraft parts, and jewelry.
- Magnesium: magnesium is the lightest structural metal widely used by precision machining service providers. Magnesium has excellent machinability, strength, and robustness, which makes it very suitable for many industrial applications.
