CNC Machining

±0.01mm Tolerance & Instant Quote Within 24 Hours

CNC Precision Machining Service

1Topch provides various precision CNC machining services, including milling, turning, EDM (Electric Discharge Machining) and wire cutting EDM, as well as surface treatment.

We have precision 3-axis, 4-axis, and 5-axis CNC machining centers, coupled with an experienced technical team, we can provide one-stop services from prototyping, low volume trial production to mass production and surface treatment.

Precision CNC Machining Services: 24-Hour Quick-Turn Prototyping with ±0.01mm Accuracy.

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Our Core Service features

Rapid Prototyping to Mass Production Solutions

Complex Geometry CNC Prototyping

We specialize in producing functional prototypes with complex geometries for design verification and engineering testing purposes, such as optical components or aluminum housing parts with complex inner structures.

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Custom Low-Volume CNC Machining Solutions

Market pressures require faster delivery? Our agile CNC services offer：
1.Fast turn-around times on customized components;
2.Economical small batch production (1-1000 units);
3.Cross-industry compatibility;
4.Fast Turnaround times.

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Why Choose Us

Our expertise lies in manufacturing geometrically complex functional prototypes through precision CNC processes, offering reliable solutions to accelerate your mechanical design verification and testing phases.

Faster Time-to-Market

Cost-Effective Solutions

Industry-Specific Experience

Responsive Communication

Proactive DFM Collaboration

Material Versatility

OurCNC Machining Options & Specifications

Materials	Aluminum: 2024, 5052, 6000 series, 7075, etc.
	Stainlesss steel: SUS303, SUS304, SS316, SS316L, 17-4PH, 15-5, etc.
	Steel: 1214L/1215/1045/4140/SCM440/40CrMo,etc.
	Brass: C260, C360, Copper101, Copper110
	Titanium: Grade F1-F5
	Plastic: Acetal/POM/PA/Nylon/PC/PMMA/PVC/PU/Acrylic/ABS/PTFE/PEEK etc.
Surface Treatment	Painting, powder coat,anodized, and chromed finishes etc.
Drawing Formats	PRO/E, Auto CAD, Solid Works , UG, CAD / CAM / CAE, PDF, All drawings will be kept confidential.

Our Core CNC Machining Capabilities

CNC Plastic Machining

We provide complex plastic part machining with multi-axis CNC, supporting ABS, PC, PEEK, and specialty post-processing.

Our processed plastic parts have 100% functionality and can undergo mechanical testing.

CNC Metal Machining

We provide reliable CNC metal machining service with ±0.01mm accuracy and superior surface finishes.

Our expertise in CNC metalworking technology has helped us achieve stricter tolerances, faster turnaround, and more challenging projects for both prototype and machined parts.

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CNC Milling

We provide High-precision CNC milling for complex 2D/3D parts with tight tolerances (±0.01mm) and superior surface finishes.

CNC Turning

Our efficient CNC turning can produce cylindrical parts with excellent concentricity and fast cycle times.

5-Axis CNC Machining

Our 5-axis CNC machining for complex, high-accuracy parts can be done in a single setup, reducing lead time and cost.

Our CNC Machining Tolerance Standards

Process Type	Material	Standard Tolerance (mm)	Precision Grade (mm)
3-Axis CNC Milling	Aluminum (6061)	±0.05	±0.02
	Stainless Steel (304)	±0.08	±0.03
	Engineering Plastics (ABS)	±0.10	±0.05
CNC Turning	Brass (H59)	±0.03	±0.01
5-Axis CNC	Titanium (TC4)	±0.05	±0.02
	Aluminum (7075)	±0.03	±0.01
	Tool Steel (P20)	±0.06	±0.025
Micro-Hole Drilling(＜1mm)	All Materials	±0.05 (＞1mm)	±0.02
Thread Machining	Metals	±0.05 (M6 and below)	±0.02

1Toptech’s Machining Tolerance Standards and we follow ISO 2768 for general tolerances:
Metals: ISO 2768 (F)
Plastics: ISO 2768 (M)
Standard accuracy: ±0.05mm to ±0.10mm
Tighter tolerances: Submit fully detailed 2D drawings for engineering review
Note: Stricter tolerances may increase costs due to higher scrap rates, custom fixtures, or specialized inspection.

About Surface Treatment

We offer one-stop surface finishing services to meet both aesthetic and functional requirements, including:
Mechanical Finishing: Grinding, Sandblasting, Mirror Polishing
Coating/Painting: Spray Painting, Powder Coating
Marking: Silk Screening, Laser Engraving
Metal Treatment: Anodizing, Electroplating, Chrome Plating
Comprehensive solutions for any design need.

Our Working Process

01.

File Review & Programming

Analyze 2D/3D drawings, confirm tolerances/material;
Generate toolpaths using CAM software.

02.

Precision Machining

Select optimal tools for material
Execute milling/turning/5-axis operations.

03.

Post-Processing

Deburring and edge refinement;
Apply surface treatments as required.

04.

Quality Inspection

First-article CMM verification; Batch sampling per ISO 2768/client standards.

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Frequently Asked Questions

What is your sample policy?

We can provide the sample if we have ready parts in stock, but you have to pay the sample cost and the shipping fees.

Can you make CNC machining parts according to the samples?

Yes, we can produce by your samples or technical drawings.

What do I have to send for quotation?

The first thing we will need is full dimensional prints. PDF,DWG,3D CAD etc.

How do you control quality?

1) Strict detection during production
2) Strict sampling inspection on products before shipment
3) Intact product packaging ensured

What is your return policy?

We have a 30-day return policy. If you are not satisfied with your purchase, you can return it for a refund or exchange within 30 days of receiving your order. Please reach out to our customer service team to initiate the return process.

What are your terms of payment?

T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.

CNC Machining

CNC Precision Machining Service

Our Core Service features

Complex Geometry CNC Prototyping

Custom Low-Volume CNC Machining Solutions

Why Choose Us

OurCNC Machining Options & Specifications

Our Core CNC Machining Capabilities

CNC Plastic Machining

CNC Metal Machining

More services From Us

CNC Milling

CNC Turning

5-Axis CNC Machining

Our CNC Machining Tolerance Standards

About Surface Treatment

Our Working Process​

File Review & Programming

Precision Machining

Post-Processing

Quality Inspection

Case Showcase

Frequently Asked Questions

Transform Your Concept into Reality?

Our Working Process