Custom Online CNC Machining Services

A：Aerospace Industry:Rapid tooling, brackets, chassis, and jigs,Heat exchangers,Gas and liquid flow components,Turbo pumps and manifolds,Fit check gauges,Fuel nozzles,Gas and liquid flow components
Automotive Industry: Lighting features and lenses,Aftermarket parts,Fixtures,Housing and enclosures,Turbo pumps and manifolds,Fit check gauges,Fuel nozzles,Gas and liquid flow components
Electronic Industry: Circuit boards,PCBs,Electronic cases,Electronics housing parts,Custom fixturing,Microcontrollers,Enclosures,Integrated circuits,Switches,Circuit breakers
Machinery Manufacturing Industry: Machine and tool parts,Pumps and accessories,Jigs and fixtures,Electronic housings,General industrial machinery,Oil and gas extraction equipment,Conveyors and conveying equipments, Parts for farm and oil field vehicles
Medical Device Industry: Surgical instruments,Medical testing devices,Medical delivery systems,Ventilators,Implantable prototypes,Prosthetic components,Microfluidics,UV sanitation components,Ventilator parts
Motorcycle Manufacturing Industry: Engine, Chain,Headlight,Seat,Brakes,Brake rod,Foot rest,Speedometer,Shock absorber support ,wheel axle,Handlebar

A: Advantages of CNC Machining
High Precision and Accuracy:
CNC machines operate strictly according to programmed instructions, minimizing human error and achieving extremely high machining precision, making them ideal for manufacturing precision components.
Ability to Machine Complex Structures:
CNC can produce complex geometries, such as 3D curved surfaces and other intricate shapes.
Wide Material Compatibility:
CNC machining is suitable for a variety of materials, including steel, aluminum, titanium, brass, plastics, and composite materials.
High Efficiency:
Once the program is set, CNC machines can repeatedly and consistently produce the same parts in batch production with shorter machining cycles.
Disadvantages of CNC Machining
High Initial Investment Cost:
CNC equipment is expensive, and its maintenance requires significant investment. Programming and machine setup must be performed by skilled professionals, resulting in high initial setup costs.
High Skill Requirements for Operators:
Experienced programmers and operators are needed; otherwise, errors may lead to scrap parts or even damage to the machines.
More Material Waste:
As a subtractive manufacturing process, CNC machining removes excess material, generating more waste compared to additive manufacturing methods.

A：Different Manufacturing Methods:
3D printing builds parts layer by layer from scratch, which is an additive process.
CNC machining removes material from a solid block, which is a subtractive process.

Difference in Structures They Can Produce:
3D printing can easily make complex shapes, internal cavities, and lattice structures.
CNC machining has limitations with deep pockets, sharp internal corners, and undercuts.

Precision and Surface Quality:
3D-printed parts usually have lower precision and a rougher surface.
CNC machining provides better surface finish and tighter tolerances.

Material Options:
3D printing works with plastics, nylon, resin, and some metal powders.
CNC machining can handle metals, plastics, and composite materials, offering a wider material range.

Production Efficiency:
3D printing is ideal for small batches and complex geometries.
For larger production volumes or parts that require high precision and strength, CNC machining is the better choice.

A: The origin of CNC machines can be traced back to the 1950s at the MIT. The earliest inventor of CNC technology was John T. Parsons, an entrepreneur and engineer from Michigan, who is widely recognized as the “Father of Numerical Control.”
In the late 1940s, Parsons realized that the aerospace industry needed a more automated and precise method for manufacturing complex parts. He proposed the idea of using punched cards and digital data to automatically control machine tools and began developing the concept with support from the U.S. Air Force.
Funded by the Air Force, Parsons collaborated with MIT to develop the world’s first true CNC machine, laying the foundation for modern CNC technology.

A: G-code is the motion command used in CNC machines, telling the machine "how to move".
It typically controls linear and circular movements, positioning to specific coordinates, and setting speeds and feed rates.

M-code is the auxiliary function command, handling machine actions that are "not directly related to the toolpath".
It usually controls spindle start/stop, tool changes, coolant on/off, and program end or pause.

A: The typical machining accuracy of standard CNC machines is ±0.01 mm to ±0.02 mm, which is suitable for most metal parts in general precision machining.
At Yumei, our CNC machining can consistently achieve an accuracy of ±0.01–0.05 mm, meeting the assembly requirements of the vast majority of mechanical components. The surface roughness can reach Ra 1.6–3.2 μm without the need for secondary polishing.
The achievable tolerance depends on various factors, including the material, part geometry, dimensions, and the specific type of CNC machine used.
If you require a precision solution tailored to specific parts or materials, please provide us with the drawing parameters, and we will further refine the process and tolerance range for you.

A: A machining center (MC) is a high-precision CNC machine that integrates multiple machining functions such as milling, drilling, boring, and tapping. Its core feature is a higher level of automation: through a numerical control system and an automatic tool changer (ATC), it enables continuous, high-precision, and multi-process machining, especially suitable for batch machining of complex parts..

A：Yumei has strong capabilities in prototype manufacturing and precision machining, with a monthly production capacity of over 10,000 parts covering a wide range of structures—from simple to highly complex designs. Equipped with more than 150 advanced CNC machines and a team of professional engineers, we guarantee consistent high-precision machining quality.
Supported by a comprehensive production system and strict quality control processes, Yumei can quickly respond to diverse project requirements, from small-batch to large-scale production. We deliver high-quality, reliable, and traceable CNC machining services, making us a trusted long-term manufacturing partner for your business..

A：Our machining service costs vary depending on the specific requirements of your project, including design complexity, tolerance specifications, and the type of material selected. The machining time of different materials is also a key factor that affects the overall cost.
We support the full range from prototyping to mass production, and the larger the order quantity, the greater the discount on the unit service fee.
Could you please share your drawings, material type, quantity, and tolerance requirements? I will prepare a quotation for you right away, including tiered pricing based on different batch sizes.

A：No MOQ

A: Lead time depends on 3 key factors: part complexity, material type, and current production schedule.
CNC machining is highly efficient – for simple parts, we can deliver as fast as 1 day after machine setup!
For our services, the fastest lead time for prototypes is 2 days, and for mass production, it can be completed in as fast as 2 weeks.
To get an accurate lead time for your project, please contact us directly with your requirements (drawings, quantities, etc.). We will provide a precise timeline along with the quotation.