CNC Machining | Services

Online CNC machining service

Get a quick quote on custom metal and plastic machined parts with our online CNC machining services. Equipment parts are made within days, and all orders are shipped after strict quality inspection. ISO 9001:2015, ISO 13485, IATF 16949:2016 and AS9100D certified.

Order CNC machined Servicesparts

All uploads are secure and confidential.

CNC Machining manufacturing capabilities

CNC machine all types of parts, from simple “as machined” workholdings to complex geometries. Our manufacturers operate almost every kind of CNC mill and turning center, with EDM and grinders available on request. We offer tolerances down to ±.020 mm (±.001 in) and lead times from 5 business days.

3 & 5 axis CNC milling

Access over 50 milling centers, including standard 3-axis mills, indexed 3+2-axis mills & fully-continuous 5-axis mills

Learn more

CNC turning

Access over 10 turning centers, including Swiss lathes and multi-axis mill turns.

Learn more

Surface finishing

The easiest way to source your custom parts, with 15+ surface finishing options. Get your parts bead blasted, anodized, or powder coated.

Learn more

CNC Machining Tolerances

We are able to offer a precision machining service with a wide array of tolerances.

Feature	Description
Maximum Part Size	Milled parts up to 80” x 48” x 24” (2,032 x 1,219 x 610 mm). Lathe parts up to 62” (1,575 mm) length and 32” (813 mm) diameter.
Standard Lead Time	3 business days
General Tolerances	Tolerances on metals will be held to +/- 0.005" (+/- 0.127 mm) in accordance with ISO 2768 unless otherwise specified. Plastics and composites will be +/- 0.010”.
Precision Tolerances	Sunnyhowe can manufacture and inspect to tight tolerances, including sub +/- 0.001" tolerances, per your drawing specifications and GD&T callouts.
Minimum Feature Size	0.020” (0.50 mm). This may vary depending on part geometry and chosen material.
Threads and Tapped Holes	Sunnyhowe can accommodate any standard thread size. We can also machine custom threads; these will require a manual quote review.
Edge Condition	Sharp edges are broken and deburred by default
Surface Finish	The standard finish is as-machined: 125 Ra or better. Additional finishing options can be specified when getting a quote.

Gallery of CNC Machining parts

Below are a small selection of the CNC machined parts and end-use components we produce for our customers.

Handheld stabilizer bracket parts

Turn-milling compound parts

PEEK Medical parts

Medical stainless steel parts

Medical parts

CNC machining materials

We can generate instant machining quotes for 50+ metals and plastics.

Metal

Plastic

We can source any other material on request, but quotes take up to 48 hours.

CNC machining surface finishes

We can instantly quote a wide variety of post-machining surface finishes.

Name	Applicable Materials	Colors	Can be applied to
Tumbling	Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper	—	All post processes, except Electropolish and Powder Coat
Black Oxide	Steel, Stainless Steel	Black	Media Blasting, Tumbling, Passivation
Nano coating	For applicable material processing, please refer to the catalog.	Full Coating or RAL color catalog	Please contact us for detailed instructions
Electropolishing	Steel, Stainless Steel	—	—
Passivation	Steel, Stainless Steel	—	Black Oxide, Electroless Nickel Plating, Zinc Plating, Tumbling, Media Blasting
Anodizing	Aluminum	Clear, black, grey, red, blue,green,orange,gold	Media Blasting, Tumbling, Alodine*
As machined	Aluminum, Steel, Stainless Steel	Ra 0.8μm - Ra 3.2μm	All post processes
Brushed	Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper	Small：Draw 6.5-8mm wire to 2.0-4.0mm. Medium：Draw 16-18mm wire to 8.0-12.0mm. Large：Draw 100-120mm wire to 20-30mm.	All post processes, except Electropolish and Powder Coat
Bead Blasted + Anodized type II	Aluminum	Clear, Black, Red, Blue, Orange, Gold	Media Blasting, Tumbling, Type II Anodizing* Type III Anodizing with PTFE*
Zinc Plating	Steel, Stainless Steel	Clear (light blue coating). Black (glossy black coating).	Media Blasting, Tumbling, Passivation
Electroless Nickel Plating	Aluminum, Steel, Stainless Steel	—	Media Blasting, Tumbling
Chrome Plating	Acrylic	—	Enhanced Cosmetic Appearance

*Additional finishing options include chromic acid anodizing, cadmium plating, copper plating, titanium anodizing (blue anodizing), gold plating, silver plating, and more. For materials not listed here, please contact us directly.

Production Workshop

Our team possesses extensive knowledge and experience in the field, ensuring precision and quality in every project we undertake.

Comprehensive workshop

CMM workshop

Quality Inspection Department

Assembly workshop

Quotation Engineering Team

Project seminar site

Surface finishing workshop

What industries use CNC machining?

CNC machining is widely used across industries. It is common in aerospace, automotive, consumer electronics, robotics, agriculture, and other fields that frequently use metal parts. It is also widely used in medical devices, household goods, energy, oil and gas, and other consumer applications. It is one of the most common manufacturing processes in the world.

How does CNC machining work?

CNC machining uses subtractive processes, which means feedstock is machined to its final form by subtracting and removing material. Holes are drilled, lots and pathways are bored, and metal stock is shaped into new material with varying tapers, diameters, and shapes.

For subtractive manufacturing, shapes are achieved by the subtraction of material. This contrasts with other types such as additive manufacturing — where materials are added, layered, and deformed to a specified shape. It also contrasts with injection molding where the material is injected in a different state of matter, using a mold, and formed to a specified shape.

CNC machining is versatile — and can be used with various materials, including metals, plastics, wood, glass, foam, and other composite materials. This versatility has helped make CNC machining a popular choice across industries, enabling designers and engineers to fabricate products efficiently and precisely.

How does CNC machining differ from traditional machining?

In traditional machining, a skilled machinist operates a machine, removing or forming metal. This is done according to specifications provided by designers and engineers, usually through an engineering drawing or blueprint. They use turn wheels, dials, switches, chucks, vices, and a variety of cutting tools made of hardened steel, carbide, and industrial diamond, then use measurement instruments to ensure all of the dimensions are correct.

CNC machining performs the same function as traditional machining — metal cutting, drilling, milling, boring, grinding, and other metal forming and removal functions — but CNC machines use computer numerical control rather than manual control by a machinist. It is automated, driven by code, and developed by programmers. It is about as precise the first time of cutting as the 500th. Widely used in digital manufacturing (and sometimes in low-volume production runs), it can be revised and altered for modifications and different materials.

This type of machining is much more precise and has superseded traditional machining (though not entirely) in manufacturing, fabrication, and industrial production. It uses mathematical coordinates and computing power to achieve the same end with the greatest accuracy. Specifically, computer numerical control uses Cartesian coordinates. These are spatial coordinates — in several dimensions — using coordinates and axes. The automation of cutting tool machines controls its cutting, boring, drilling, or other operation using the numerical control of a computer that reads the coordinates. These coordinates were designated by engineers in the product’s digital drawing and design.

Services

Industries

Materials

Resources

Company

Contact

Select Your Country/Region

Online CNC machining service

CNC Machining manufacturing capabilities

3 & 5 axis CNC milling

CNC turning

Surface finishing

CNC Machining Tolerances

Gallery of CNC Machining parts

CNC machining materials

Metal

Plastic

CNC machining surface finishes

Production Workshop

What is Sunnyhowe

FAQs

What industries use CNC machining?

How does CNC machining work?

How does CNC machining differ from traditional machining?