Order custom metal and plastic parts tailored to your needs.

Online CNC Milling Services

CNC milling services on demand for rapid prototypes and production parts. If you have any demand, please contact us.

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Custom CNC Milling Services

We provide comprehensive CNC machining services, including milling, turning, drilling, tapping, EDM (Electrical Discharge Machining), and wire EDM, for a variety of materials.

3-Axis CNC Milling

With 3-axis CNC milling, you get the perfect balance of precision and affordability—ideal for simple parts that require accuracy.

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4-Axis CNC Milling

If you can imagine the design, 4-axis milling can likely create it—making multi-sided machining easier than ever.

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5-Axis CNC Machining

For intricate and complex parts, 5-axis milling is the ultimate solution—turning your most ambitious designs into reality.

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Why Choose ours CNC Milling Services?

A Skilled Team with Proven Expertise.

delivering exceptional results through experience, dedication, and strategic thinking.

Personalized Collaboration & Proactive DFM.

working closely with clients to understand their unique needs and goals

State-of-the-Art In-House Equipment.

featuring the latest technology and advanced machinery to ensure precision, efficiency.

Advanced High-Complexity Machining.

leveraging cutting-edge technology to manufacture intricate components

Industry-Leading Competitive Pricing.

delivering exceptional value without compromising on quality or precision.

Unmatched Turnaround Times.

ensuring fast, efficient, and reliable production without compromising quality.

Capabilities of CNC Milling Services

Our CNC machines deliver precision tolerances that meet industry standards, ensuring consistent accuracy and seamless component fit.

	3-Axis	4-Axis	5-Axis
Maximum Size	1000 x 500 x 500 mm	1000 x 500 x 500 mm	1000 x 500 x 500 mm
Minimum Size	5 x 5 x 5 mm	5 x 5 x 5 mm	5 x 5 x 5 mm
General Tolerances	±0.05 mm	±0.05 mm	±0.05 mm
Lead Time	as fast as 1 day.	4 bussiness days	more than 5 bussiness days

Design Guidelines

Optimize your designs for manufacturability with our expert guidelines and feedback, ensuring the best results in CNC machining.

Internal and External Radii

1. Use internal corner radii of at least 1/3 of the cavity depth to reduce tool stress.

2. Larger radii (e.g., R2 mm or larger) improve tool accessibility and longevity.

3. Avoid sharp internal corners; CNC tools have rounded edges.

Minimum Wall Thickness

1. Metal parts: ≥ 0.8 mm (recommended for strength and stability)

2. Plastic parts: ≥ 1.5 mm (to prevent deformation and warping).

3. Thinner walls increase machining difficulty and risk of breakage.

Pocket and Cavity Depths

1.Recommended depth: ≤ 4 times the tool diameter (for efficient material removal).

2. Deep cavities (above 50 mm) may require specialized tooling or multi-step machining.

Text and Engraving

1. Minimum engraved text size: 0.5 mm width, 1 mm depth.

2. Use simple sans-serif fonts (e.g., Arial) for better legibility

3. Raised text is more costly than engraved text..

Tolerances

1. Standard CNC tolerance: ± 0.05 mm.

2. Tighter tolerances (e.g., ±0.01 mm) increase machining time and cost.

3. Specify critical dimensions only to balance precision and efficiency.

Undercuts and Special Features

1. Avoid undercuts unless necessary, as they require special tooling.

2. If undercuts are required, specify standard undercut sizes for easier machining.

Chamfers and Fillets

1. Use chamfers (e.g., 45°) or fillets to ease machining and reduce stress concentrations.

2. Chamfers: Suitable for edges and deburring.

3. Fillets: Reduce sharp transitions in internal pockets.

Surface Finishes

1. Standard CNC finish: Smooth machined surface (~Ra 3.2 µm).

2. Tighter surface finish requirements (e.g., Ra 0.8 µm) increase machining cost.

Materials for CNC Machining

CNC technology enables the machining of a wide range of materials with precision and efficiency. At TonZa, we offer CNC machining quotes for over 30 engineering-grade plastics and metals, ensuring versatility for various applications. Additionally, a variety of surface finishes can be applied to enhance the appearance and functionality of CNC-machined parts.

Metal

Whether for prototypes or end-use parts, our expertise in CNC metal machining enables us to achieve tighter tolerances, faster turnaround times, and successfully tackle even the most complex manufacturing challenges.

Tipical: Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper, Magnesium Alloy, Titanium Alloy, Zinc Alloy and etc.

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Plastic

Supports over 40 engineering-grade materials, ensuring versatility for various applications. The machined plastic parts are fully functional and suitable for mechanical testing, guaranteeing reliability and performance.

Tipical: ABS, PC, ABS+PC, PMMA (Acrylic), PA (Nylon), PA+GF30, POM (Acetal/Delrin), PP, PVC, HDPE, PPS, PEEK and etc.

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Surface Finishes

We are offering over 20 options of surface finishes to fulfill both your functional and aesthetic requirements.

Brushing

is a surface treatment that grinds the workpiece, creating decorative lines for an attractive finish.

Sand Blast

uses high-speed sand flow to clean and roughen a product's surface.

Polishing

uses abrasives or buffing wheels to smooth surfaces, remove imperfections, and create a reflective finish.

Tumbling

is a surface treatment that rotates materials with abrasive media in a drum or container.

Anodizing

enhances by forming a protective layer that improves corrosion resistance, hardness, and appearance.

Painting

This process improves the tactile feel but may be prone to scratches.

Black Oxide

an oxide film used to improve corrosion resistance, enhance appearance, and reduce light reflection.

Electroplating

is used for functional, decorative, and corrosion-resistant purposes in various industries.

Powder Coating

applies electrostatically, then cures it with heat or UV light for a durable, attractive finish.

Alodine

is a protective conversion coating for aluminum that prevents corrosion and acts as a primer for painting.

Passivation

enhances corrosion resistance by immersing it in an acid to remove contaminants and form a protective layer.

Electroless Plating

is a chemical process that deposits metal onto a substrate without electrical current.