CNC Machining

CNC Machining Services

Obtain immediate quotes for tailor-made metal parts with our CNC Machining Service. Transform your designs into reality in days. We uphold the highest quality standards, proudly certified with ISO 9001:2015: your visions, our craftsmanship.

CNC Machining

What is CNC Machining?

CNC Machining, or Computer Numerical Control Machining, is a prevalent manufacturing method employing automated, fast-paced cutting tools to carve designs from metal or plastic blocks. Standard CNC machinery spans 3-axis, 4-axis, and 5-axis milling machines, lathes, and routers, each varying in how CNC parts are trimmed – a stationary workpiece with a moving tool, an unmoving tool with rotating and moving workpiece, or a synchronized dance between both.

Expert machinists pilot CNC machines by devising tool paths based on the final part’s geometry. This crucial geometry information is sourced from a CAD model. CNC machines, with their fine precision and consistent performance, can shape almost any metal alloy and rigid plastic, making them adaptable for virtually every industry, including aerospace, medical, robotics, electronics, and industrial sectors. At Shengen, we offer services and present custom CNC quotes on various materials, from standard aluminum and acetal to sophisticated titanium and engineered plastics like PEEK and Teflon. Turning complexity into simplicity, precision into art – that’s what CNC machining at Shengen is all about!

Custom CNC Machining Services

Experience tailored precision with Shengen’s Custom CNC Machining Services. Delivering quality parts from complex designs swiftly, we shape your ideas into reality.

CNC Milling

CNC Milling

Shengen’s CNC Milling, where intricate designs meet exactness. Crafted to perfection, we transform raw materials into high-precision finished products.

CNC Turning Services

CNC Turning

Experience the finesse of Shengen’s CNC Turning, turning simplicity into sophistication. Through precise machining, we fashion parts that fit your needs flawlessly.

Why Choose Shengen for Tailored CNC Machining Services?

Our extensively experienced team can transform any design, simple or intricate, into reality. We provide prompt prototyping, small-batch machining, and large-scale production, with Shengen overseeing all processes from beginning to end. Upload a CAD file to obtain pricing, lead times, and valuable design-for-manufacturability feedback on your custom CNC parts.

Shengen’s swift CNC machining capabilities extend to diverse metals, offering flexible production and shipping options to meet your needs at the optimal cost and product development stage.

 Our ISO 9001:2015 certified quality management system is a testament to our commitment. We accept technical drawings and have dedicated support teams to ensure the timely delivery of premium CNC machined parts. Crafted with precision, delivered with passion – that’s the Shengen way!

CNC Machining

CNC Machining Tolerances and Standards

CNC machining tolerances and standards are crucial for precision sheet metal fabrication. Factors such as material type, thickness, and machine capability must be taken into account to achieve the desired results. Adhering to these standards ensures the parts produced meet the required specifications and are of the highest quality.

Standards CNC Milling CNC Turning
Maximum Part Size 4000*1500*600 mm 200*500 mm
Minimum Part Size 4*4 mm 2*2 mm
Standard Tolerances ISO 2768-f ISO 2768-f
Linear Dimension +/- 0.025 mm +/- 0.025 mm
Shaft Diameters +/- 0.025 mm +/- 0.025 mm
Hole Diameters (Not Reamed) +/- 0.025 mm +/- 0.025 mm
Lead Time 5 business days 5 business days

Metal CNC Machining Materials

Aluminum 6061

Aluminum 5052

Aluminum 2024

Aluminum 6063

Aluminum 7050

Aluminum 7075

Aluminum MIC-6

Copper 101

Copper C110

Copper C932

Copper 260

Copper 360

Nitronic 60 (218 SS)

Stainless Steel 15-5

Stainless Steel 17-4

Stainless Steel 18-8

Stainless Steel 303

Stainless Steel 316/316L

Stainless Steel 416

Stainless Steel 410

Stainless Steel 420

Stainless Steel 440C

Steel 1018

Steel 1215

Steel 4130

Steel 4140

Steel 4140PH

Steel 4340

A2 Tool Steel

O1 Tool Steel

Titanium (Grade 2)

Titanium (Grade 5)

Zinc Alloy

Finishing Options for CNC Machining

Choose from a variety of finishing options for your CNC machining, including powder coating, anodizing, and Electroplating.

Name Description Materials Color Texture
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

The Process Flow & Duration Estimation

Please note that the final cost depends on the customized service you require, the specifications of the raw materials used, the relevant national laws, and the distance of transportation. Take the example of booking a tall container of products:

Step 1: Drawing Design (within 1 day)

Designers use CAD to quickly as well as accurately modify designs to meet the desired specifications, ensuring that the final product meets the required specifications quickly and accurately.

Step 2: Product Proofing (1-2 days)

Product proofing is an essential part of the manufacturing process that can help businesses ensure the quality and consistency of their products while minimizing risks and costs associated with defects or errors in production.

Step 3: Bulk Manufacturing (1-3 days)

Once the specifications and quality of the product are confirmed to be in order, it is ready for mass production.

Step 4: Shipping (3-5 days)

Once the products arrive at their destination, you will receive an alert. You can plan how to collect your shipped goods.

What Sets Us Apart

Strong Capacity

 With two expansive sheet metal fabrication factories and a dedicated team of over 90 specialists, we at Shengen stand at the forefront of the industry. Our in-house expertise allows us to handle any project, no matter the size or complexity.


Our extensive lineup of state-of-the-art machinery – three laser cutting machines, two punching machines, two CNC machining units, and ten bending machines – sets us apart.This arsenal ensures precision, efficiency, and high quality in every piece we fabricate.

Favorable Price

We believe in providing superior quality without making you break the bank. Our competitive pricing strategy reflects our commitment to deliver maximum value with our efficient manufacturing process. We drive down costs and pass these savings on to you.

Support & Service

Our promise goes beyond just delivering exceptional sheet metal products. We’re committed to providing comprehensive support and service. We prioritize prompt communication, swiftly addressing quality concerns, and ensuring timely delivery.

Our Clients ​Say About Us

The FAQs About CNC Machining

Common materials used in CNC machining for prototyping include plastics, aluminum, and steel.

CNC machining offers high accuracy, repeatability, and efficiency, which are essential for producing complex parts with tight tolerances.

The most common machines used in CNC machining are lathes, milling machines, and routers.

CNC milling involves rotating a cutting tool to remove material from a stationary workpiece, while CNC turning involves rotating the workpiece while a cutting tool removes material

 CNC machining involves cutting a part from a block of material, while 3D printing involves building a part layer by layer from a digital model.

3-axis CNC machining involves cutting apart with a tool that moves in three directions, while 5-axis CNC machining uses a tool that can move in five directions, allowing for more complex parts to be produced.

CNC machining is used for a variety of applications, including prototyping, tool and die making, and mass production of parts.

The tolerance for CNC machining is typically specified in thousandths of an inch or millimeters, depending on the system used.

Get A Free Quote

Contact us to get a free quote and more expertise about sheet metal fabrication. Your project will meet the right solution with Shengen.

Custom Sheet Metal Fabrication with Easy

At Shengen, We turn complex Into Simple! Follow the following three steps to start today!

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