CNC Metal Machining Services Based on Your Drawings

Custom CNC Metal Machining for Precision Parts
SzCrealink provides custom CNC metal machining services for companies that need reliable, repeatable parts made from engineering drawings.
From a single prototype to small-batch production, we machine aluminum, stainless steel, steel, brass, copper, titanium, and other metals according to your drawings, specifications, and application requirements.
As a direct manufacturer in Shenzhen, we handle machining, surface finishing, inspection, and production coordination in-house, giving you a clear manufacturing process from quotation to delivery.
-CNC milling and turning
-3-axis, 4-axis, and 5-axis machining
-Prototype and small-batch production
-Typical tolerances down to ±0.01 mm
-CMM and precision inspection available
-Surface finishing and secondary processes
GET A QUOTE NOW

Precision CNC Metal Machining Services

Metal parts often need more than simply being cut to shape. Tolerance, material condition, surface finish, geometry, and production quantity all affect the final result.
Our CNC machining process is built around these requirements. We review your drawings before production, select suitable machining methods and tooling, and inspect critical dimensions during and after machining.
Our CNC metal machining capabilities include:
CNC Milling
Suitable for brackets, housings, plates, fixtures, connectors, structural parts, and complex 3D components.
We provide 3-axis, 4-axis, and 5-axis CNC milling for both simple and complex geometries.
CNC Turning
Used for shafts, pins, bushings, sleeves, threaded components, and other rotational parts.
Turning allows efficient control of diameter, concentricity, roundness, and surface finish.
Multi-Axis CNC Machining
For parts with multiple faces, angled features, deep cavities, or complex surfaces, multi-axis machining can reduce the number of setups and help maintain positional accuracy.
EDM
EDM wire cutting is available for features that are difficult to produce with conventional cutting tools, including narrow slots, internal profiles, and certain hardened materials.
Precision Grinding
Grinding is used where tighter control of flatness, surface finish, or critical mating surfaces is required after milling or turning.

CNC Metal Machining-Machine
CNC Metal Machining-Working

CNC Metal Machining for Different Production Needs

The right machining process depends on your part geometry, quantity, tolerance, material, and delivery requirements.
Prototype Machining
For new product development, functional testing, and design verification.
Small-Batch Production
Suitable when you need production parts without committing to large quantities.
Repeat Production
For parts that need to be manufactured repeatedly with consistent dimensions and quality.
We can review your drawings and recommend a practical machining approach rather than automatically choosing the most expensive process.

Metals We Machine

We work with commonly used engineering metals for industrial, mechanical, electronic, automotive, automation, and other applications.
Aluminum
Common grades include 6061-T6, 7075-T6, 6082, and other aluminum alloys.
Aluminum is widely used for lightweight structural parts, housings, brackets, fixtures, heat-related components, and general-purpose CNC parts.
Stainless Steel
Common grades include 303, 304, 316, and 17-4PH.
Stainless steel is suitable for applications requiring corrosion resistance, strength, and durability.
Steel
Carbon steel and alloy steel can be machined for components where strength, wear resistance, or structural performance is important.
Brass
Brass offers good machinability and electrical conductivity and is commonly used for fittings, connectors, bushings, and precision components.
Copper
Copper is selected where thermal or electrical conductivity is important.
Titanium
Titanium alloys provide a high strength-to-weight ratio and corrosion resistance but require more careful machining and process control.
If you are unsure which material is best for your application, send us the drawing and application requirements. We can help evaluate the practical options based on performance and machining cost.

Tight-Tolerance CNC Metal Parts

For precision components, the drawing specification is the starting point.
Our machining processes are controlled around the dimensions and tolerances specified by the customer. Typical machining tolerances can reach ±0.01 mm, depending on the material, part geometry, feature size, and process.
For critical dimensions, inspection may include:
In-process dimensional checks
Calipers and micrometers
Height gauges
Optical measurement
CMM inspection
Final dimensional verification
Not every dimension needs the same tolerance. Where appropriate, our engineers can also provide DFM feedback to help avoid unnecessarily tight specifications that increase machining costs.

Surface Finishing for CNC Metal Parts

Machining is only one part of the manufacturing process. Depending on the application and appearance requirements, we can coordinate different surface treatments for CNC metal parts.
Available options include:
Anodizing
Hard anodizing
Plating
Sandblasting
Polishing
Brushing
Painting
Laser engraving
Surface treatment can improve corrosion resistance, wear resistance, appearance, or functional performance.
If your drawing specifies a particular finish, include the requirement with your RFQ so we can quote the complete process accurately.

CNC Metal Parts Made From Your Drawings

You don’t need to redesign your part around our standard products.
We manufacture custom components based on:
2D engineering drawings
3D CAD files
STEP / STP files
IGES / IGS files
DXF files
PDF drawings
Samples for reference
Before machining, we check the drawing, material, tolerance, surface finish, quantity, and other production requirements.
If something may create a machining or cost problem, we prefer to identify it before production rather than discover it after the parts are made.

From Drawing to Finished Metal Parts

Our production process is straightforward:
01 – Drawing Review
We review your drawings and technical requirements to understand the part, material, tolerances, surface finish, and quantity.
02 – Process Planning
Our engineers select suitable machines, tools, workholding methods, and machining sequences based on the part geometry.
03 – CNC Machining
The parts are machined using the appropriate CNC milling, turning, EDM, grinding, or combined processes.
04 – Inspection
Critical dimensions are checked during production, followed by final inspection before shipment.
05 – Surface Treatment
Where required, parts are sent through the specified surface finishing or secondary treatment process.
06 – Packing & Delivery
Finished parts are cleaned, protected, packed, and prepared for shipment according to the size and requirements of the order.

Quality Control for CNC Metal Machining

Precision machining is only useful when the result is consistent.
We use inspection equipment and documented checking procedures to verify parts against customer drawings and specifications.
Depending on the project, inspection can include dimensional inspection, visual inspection, material verification, and CMM measurement.
For projects requiring additional documentation, inspection reports and material certificates can be provided as required.
Our quality system is supported by ISO 9001, ISO 13485, IATF 16949, and ISO 14001 certifications.

CNC Metal Machining for Different Industries

Our CNC metal machining services are used for components in applications such as:
Industrial equipment
Automation systems
Robotics
Automotive
Electronics
Cooling systems
Mechanical equipment
Hardware and structural applications
The manufacturing requirements can vary considerably between applications. We adjust material selection, machining methods, tolerances, inspection, and finishing according to the actual part requirements.

What Affects CNC Metal Machining Cost?

The price of a CNC metal part is determined by more than its material and quantity.
The main factors include:
Material
Aluminum is generally easier and faster to machine than stainless steel or titanium.
Part geometry
Deep cavities, thin walls, complex surfaces, and difficult-to-reach features may require additional setups or specialized tooling.
Tolerance
Tight tolerances require more controlled machining and inspection.
Surface finish
Anodizing, plating, polishing, and other finishing processes add cost and lead time.
Quantity
Higher quantities can improve machine utilization and reduce the machining cost per part.
Production requirements
Inspection documentation, material certificates, special packaging, and other requirements can also affect the total quotation.
For this reason, the most accurate way to quote a CNC metal part is to review the actual drawing.

How to Get a CNC Metal Machining Quote

Send us your 2D drawing, 3D CAD file, or part sample, together with the quantity and any specific requirements.
We’ll review:
Material
Dimensions and tolerances
Machining method
Surface finish
Quantity
Inspection requirements
Expected delivery schedule
Our engineering team will then provide a quotation based on the actual manufacturing requirements.
Have a metal part to machine? Send us your drawings and let us review it.

Frequently Asked Questions

What metals can you CNC machine?
We commonly machine aluminum, stainless steel, carbon steel, alloy steel, brass, copper, titanium, and other engineering metals.
What CNC machining tolerance can you achieve?
Typical tolerances can reach ±0.01 mm depending on the material, geometry, feature size, machining process, and drawing requirements. Tighter tolerances may be possible for specific critical features after engineering review.
Do you accept small quantities?
Yes. We support prototypes and small-batch production, including low-volume custom CNC metal parts.
Can you machine parts from drawings?
Yes. We manufacture custom parts directly from customer drawings and CAD files.
Can you provide surface finishing?
Yes. We can coordinate anodizing, plating, polishing, sandblasting, painting, laser engraving, and other finishing processes.
Can you inspect precision CNC parts?
Yes. Inspection can include standard precision measuring tools, optical measurement, height gauges, and CMM inspection depending on project requirements.
Can you help with DFM?
Yes. If we identify a feature that may increase machining difficulty, cost, or production risk, we can provide practical DFM feedback before production.

Start Your CNC Metal Machining Project

Have a custom metal part that needs to be machined?
Send us your drawings and requirements.
We’ll review the project, confirm the manufacturing approach, and provide a clear quotation and realistic lead time.
Get a Quote for Your CNC Metal Parts
Scroll to Top