Our online CNC machining services
Having 200 sets of 3, 4, and 5-axis CNC machines and a wide range of auxiliaries in China, RapidDirect is your ideal choice for custom CNC machining requirements. No matter what tolerance, materials, surface finish is needed for your CNC parts, quick-turn prototype in one day, or production parts for months, RapidDirect can always manage to achieve, within the promised lead time.
Upload CAD files and get a FREE quote today!
Why CNC Machining with RapidDirect
No more email back-and-forth, by simply uploading your design files and selecting the material and surface finish, our big-data-driven platform calculates an accurate and competitive CNC quotation in real-time.
Having been in this industry for nearly 2 decades, RapidDirect has developed a team of engineers with profound CNC project experience. Get machining parts suggestions that achieve the same function at a lower cost.
Quality is the cornerstone of the manufacturing business. We passed ISO 9001:2015, and provide SGS, RoHS material certifications, first article inspection, full-dimensional inspections on your request.
Materials for CNC Machining Parts
CNC machining have a long list of available materials for CNC prototypes and manufacturing parts, from hard metals like stainless steel and titanium, to soft metals such as aluminum, copper, brass, all the way to plastics including ABS, PC, PA, etc.
Aluminum is a highly ductile metal, making it easy to machine. The material has a good strength-to-weight ratio and is available in many types for a range of applications.
Aluminum ADC12 (A380)
Copper displays excellent thermal conductivity, electrical conductivity and plasticity. It is also highly ductile, corrosion resistant and can be easily welded.
- Copper 101
- Copper for EDM
- Beryllium copper
- Chromium zirconium copper
- Tungsten copper
- Antimony copper
Brass / Bronze
Brass has desirable properties for a number of applications. It is low friction, has excellent electrical conductivity and has a golden (brass) appearance.
- Brass 2680
- Brass H59
- Brass H62
- Brass 260
- Brass 385
- Brass CAD260
- Brass 360
- Tin phosphor bronze
- Aluminum bronze plate
- Tin bronze
1045 Steel (45 #)
42 Crmo Steel
4J36 Steel Alloy
A2 Tool Steel
Class 8 Gray iron
D2 mould steel
DC-01 Steel Cold rolled steel
Invar 36 Steel
S7 Steel Tool Steel
ST37 (Q235) Steel
Galvanized Steel / SGCC / SECC
SCM440 (40CrMo) Steel alloy
52100 Bearing Steel
SUS304 Stainless steel
SUS303 Stainless steel
SUS301 Stainless steel
SUS316 Stainless steel
SUS316L Stainless steel
SUS401 Stainless steel
SUS416L Stainless steel
SUS416 Stainless steel
SUS420 Stainless steel
SUS201 Stainless steel
SUS430 Stainless steel
SUS431 Stainless steel
SUS440C Stainless steel
SUS410 Stainless steel
SUS630 / 17-4PH Stainless steel
PP631 / 17-7PH Stainless steel
- TC4 Titannium Alloy
- TC5 Titanium Alloy
- Military-grade titanium Alloy
- Food-grade titanium Alloy
- R53400 Titanium Alloy 9
CNC Machining Surface Finishes
Apart from custom CNC milling and turning services, we also provide complete surface finishing options for precision machined parts.
Anodizing improves corrosion resistance, enhancing wear resistance and hardness, and protecting the metal surface. Widely used in mechanical parts, aircraft, and automobile parts, precision instruments, etc.
Bead blasting results in parts with a smooth surface with a matte texture. Used mainly for visual applications and can be followed by other surface treatments.
Powder coating forms a durable, wear resistant and corrosion resistant layer on the surface of parts. Powder coating can be used to apply colors to parts and is compatible with any metal.
Electroplating can be functional, decorative or corrosion-related. Many industries use the process, including the automotive sector, in which chrome-plating of steel automobile parts is common.
Polishing is the process of creating a smooth and shiny surface, either through physical rubbing of the part or by chemical interference. The process produces a surface with significant specular reflection, but in some materials is able to reduce diffuse reflection.
Brushing is a surface treatment process in which abrasive belts are used to draw traces on the surface of a material, usually for aesthetic purposes. Most commonly applied to aluminum.
Painting the surface of a part improves its aesthetic appearance and can provide brand recognition to consumers. In addition, painting can have a protective effect on parts.
Standard Tolerances For CNC Machining
Our standard tolerances for CNC machining of metals is DIN-2768-1-fine and for plastics is DIN-2768-1-medium. Tolerances are greatly affected by part geometry and type of material. Our project managers will consult with you on every part of your project and will seek to provide the highest degree of precision possible.
CNC machining is ideal for rapid prototyping applications for its compatibility with a broad range of cost-effective materials, and its rapid turn-around for precise parts and prototypes. We work with our customers to design and produce prototypes that meet their manufacturing requirements and quality standards.
Our CNC machining service is ideal for rapid tooling to test and validate the part design and material in the prototyping stage. At RapidDirect, we specialize in the production of high-quality tools used in injection molding and other tooling applications.
At RapidDirect, we offer customers end-use production CNC machining service that has broad material compatibility, high-quality surface finishes, with consistently high precision. We also provide the option to work with custom raw materials.
Quality Reports & Certifications
Full dimensional report
Details of all required part dimensions accompany the part, giving you peace of mind that the part will function and fit as designed.
We provide material certification with our products, providing traceability to material characteristics.
First part verification
We can ship two sets of parts to the customer for verification on your request. Once the parts have been validated, we can move into full production.
Get Your Parts Into Production Today
Only 4 simple steps to complete your project. Follow the instruction and give it a try!
Place an Order