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Our CNC Machining Services
CNC Milling
CNC milling removes materials from the workpiece to create custom-designed parts with flat surface using cutting tool or multi-point milling cutters.
WIth our 3-axis & 5-axis CNC milling services, you can get milled parts with tight tolerance up to +-0.005mm (+-0.0002 in.)
CNC Turning
CNC turning shears materials from the ouside of a rod at incredible speeds using a spinning tool. At cncjsd, we apply 50+ CNC lathes and CNC turning centers to create round or cylindrical turned parts with extreme precision that consistantly meet customers’ expectations.
From CNC Prototyping to Production
Rapid Prototyping
Bridge Production
On-Demand Production
CNC Machining Tolerances and Standards
| Standards | CNC Milling | CNC Turning |
| Maximum Part Size | 4000×1500×600 mm
157.5×59.1×23.6 in. | 200×500 mm
7.9×19.7 in. |
| Minimum Part Size | 4×4 mm
0.1×0.1 in. | 2×2 mm
0.079×0.079 in. |
| Minimum Feature Size | Φ 0.50 mm
Φ 0.00197 in. | Φ 0.50 mm
Φ 0.00197 in. |
| Standard Tolerances | Metals: ISO 2768-f Plastics: ISO 2768-m | Metals: ISO 2768-f Plastics: ISO 2768-m |
| Linear Dimension | +/- 0.025 mm +/- 0.001 in. | +/- 0.025 mm +/- 0.001 in. |
| Hole Diameters (Not Reamed) | +/- 0.025 mm +/- 0.001 in. | +/- 0.025 mm +/- 0.001 in. |
| Shaft Diameters | +/- 0.025 mm +/- 0.001 in. | +/- 0.025 mm +/- 0.001 in. |
| Edge Condition | Sharp corner will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing. | |
| Threads and Tapped Holes | Diameter: Φ 1.5-5 mm, depth: 3×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter | Diameter: Φ 1.5-5 mm, depth: 3×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter |
| cncjsd can produce threads of any specification and size required by our customers. | ||
| Text | Minimum width of 0.5 mm, depth of 0.1 mm cncjsd can use CNC engraving or laser carving to create standard text based on customers’ requirements. | cncjsd can use laser marking to create standard text for CNC turned parts. |
| Lead Time | 5 business days | 5 business days |
Surface Finishes for CNC Machining
| Name | Description | Materials | Color | Texture | Link |
 | Anodizing | 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. | Aluminum | Clear, black, grey, red, blue, gold. | Smooth, matte finish. | - |
 | Bead Blasting | 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. | ABS, Aluminum, Brass, Stainless Steel, Steel | n/a | Matte | - |
 | Powder Coating | Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light. | Aluminum, Stainless Steel, Steel | Black, any RAL code or Pantone number | Gloss or semi-gloss | - |
 | Electroplating | 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. | Aluminum, steel, stainless steel | n/a | Smooth, glossy finish | - |
 | Polishing | 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. | Aluminum, Brass, Stainless Steel, Steel | n/a | Glossy | - |
 | Brushing | 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. | ABS, Aluminum, Brass, Stainless Steel, Steel | n/a | satin | - |
Gallery of CNC Machined Parts
Why Choose Our Custom CNC Machining Service
Online Instant Quote & DFM Analysis
No need to write a quote request email, get instant CNC quotes by simply uploading your design files. Our digital quoting platform analyzes your part geometry, and provides real-time & competitive pricing and comprehensive DFM feedback.
Consistent High Quality
We strictly implement a quality management system to ensure consistent, expected quality on the products. Full inspections also make sure you receive precision machined parts devoid of unwanted defects.
Fast Lead Time
Not only do we have a digital CNC machining services platform that provides faster ordering process, we also own domestic workshops and state-of-the-art machinery to accelerate the production of your prototypes or parts.
24/7 Engineering Support
No matter where you are, you can get our 24/7 engeering support all year around. Our experienced engineer can provide you with the most appropriate solution to your part design, material selection, and surface finishing options and even lead time.
See What Our Customers Say About Us
A customer’s words have a more substantial impact than a company’s claims – and see what our satisfied customers have said regarding how we fulfilled their requirements.
Our CNC Machining for Various Industrial Applications
Materials for Custom CNC Machining Parts
A numebr of materials can be used in CNC machines, giving you various of options to complete rapid prototyping to production runs of custom complex parts. For your manufacturing needs, we provide instant quotatios of 100+ metals and plastics, and even you can compare prices for different machining materials.
Aluminum
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.
Price: $
Lead Time: < 10 days
Tolerances: ±0.125mm (±0.005″)
Max part size: 200 x 80 x 100 cm
Copper
Copper displays excellent thermal conductivity, electrical conductivity and plasticity. It is also highly ductile, corrosion resistant and can be easily welded.
Price: $$$
Lead Time: < 10 days
Wall Thickness: 0.75 mm
Tolerances: ±0.125mm (±0.005″)
Max part size: 200 x 80 x 100 cm
Brass
Brass has desirable properties for a number of applications. It is low friction, has excellent electrical conductivity and has a golden (brass) appearance.
Price: $$
Lead Time: < 10 days
Wall Thickness: 0.75 mm
Tolerances: ±0.125mm (±0.005″)
Max part size: 200 x 80 x 100 cm
Stainless Steel
Stainless steel is the low carbon steel that offers many properties that are sought after for industrial applications. Stainless steel typically contains a minimum of 10% chromium by weight.
Price: $$
Lead Time: < 10 days
Wall Thickness: 0.75 mm
Tolerances: ±0.125mm (±0.005″)
Max part size: 200 x 80 x 100 cm
Titanium
Titanium has a number of material properties that make it the ideal metal for demanding applications. These properties include excellent resistance to corrosion, chemicals and extreme temperatures. The metal also has an excellent strength-to-weight ratio.
Price: $$$
Lead Time: < 10 days
Wall Thickness: 0.75 mm
Tolerances: ±0.125mm (±0.005″)
Max part size: 200 x 80 x 100 cm
Plastics
Plastics are also very popular option for CNC machining because of its wide choices, relatively lower price, and significantly faster machining time needed. We provide all common plastics for CNC machining services.
| POM | PEEK | HDPE | PET |
| Nylon | PTFE | PVC | PP |
| ABS | PC | PMMA |
