Instant quotes for custom milled metal and plastic parts | Fast delivery of prototypes and production parts in just a few days | Certified with ISO 9001:2015, ISO 13485, IATF 16949:2016, AS9100D, and registered with ITAR.
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EPTAHUB collaborates seamlessly with over 1,000 qualified manufacturing partners, including nearby CNC machining centers certified to ITAR and AS9100D standards.This extensive network ensures that no matter what part you need to machine, we can find the right facility and equipment to get the job done. We offer 3-axis, 4-axis, 5-axis, and right-angle milling capabilities to help you quickly turn your designs from simple linear shapes into complex geometric parts.
Regardless of your industry, EPTAHUB provides instant pricing, on-demand lead times, and design for manufacturability feedback on materials and manufacturing processes for your custom CNC milled parts. Get your instant quote now! Your milling prototype quote includes customs duties and shipping costs for standard packages.
| Aluminum | Bronze/Brass | Copper | Plastics | Steel / Titanium / Zinc |
|---|---|---|---|---|
| Aluminum 5052 | Brass C360 | Copper C110 | ABS | Alloy Steel 4130, 4140 |
| Aluminum 7075 & 7075-T6 | Brass 260 | Copper 101 | Acetal [Delrin] | ASTM A36 |
| Aluminum 6063-T5 | C932 M07 Bearing Bronze | Acrylic | Stainless Steel 15-5, 17-4, 18-8, 303 | |
| Aluminum 7050-T7451 | G-10 Garolite | Stainless Steel 303,304, 316/316L | ||
| Aluminum MIC-6 | Nylon 6/6 | Stainless Steel 416, 420 | ||
| Aluminum 6061-T6 | PEEK | Steel, Low Carbon | ||
| Aluminum 2024-T3 | Polycarbonate | Steel A36 | ||
| PTFE [Teflon] | Titanium Grade 2, Titanium 6Al-4V, Zinc Sheet Alloy 500 | |||
| Polypropylene | ||||
| Ultra-High Molecular Weight Polyethylene |
Additional alloys and tempers are available upon request. We can source materials according to your project specifications. If you cannot find the required alloy or material on our platform, please select "Other" and enter the specific material name.
Instant quotes for all types of custom CNC milled parts (including metal and plastic) are available through our online platform. If you cannot find the required material in stock, please select "Other" from the material dropdown menu on the quoting page and submit your request with clear part characteristics, tolerance ranges, inspection requirements, and quantity needed. Our professional engineering team will evaluate it.
This is the fastest turnaround surface finish option. The part surface will retain visible tool marks, and may have sharp
edges and burrs, which can be removed if needed. The surface roughness is equivalent to 125 microinches (μin) Ra.
Typically, glass beads are used for media blasting on the part surface, resulting in a smooth matte appearance.
Type II: Forms a corrosion-resistant surface layer. Parts can be anodized in a variety of colors, with clear, black, red,
and gold being the most common. This finish is typically suitable for aluminum parts.
Type III: Has a thicker oxide layer than Type II. In addition to the corrosion resistance of Type II, it also forms a
wear-resistant layer.
Type II: Forms a corrosion-resistant surface layer. Parts can be anodized in a variety of colors, with clear, black, red,
and gold being the most common. This finish is typically suitable for aluminum parts.
Type III: Has a thicker oxide layer than Type II. In addition to the corrosion resistance of Type II, it also forms a
wear-resistant layer.
If you cannot find the required surface finish, please submit a Request for Quote (RFQ), and we will research the appropriate surface treatment process for you.
Due to its ability to work with almost all materials, CNC technology is ideal for rapid tooling manufacturing, such as making fixtures or molds.
CNC milling offers a wide range of material options, low unit processing costs, and fast production speeds, making it an ideal choice for prototyping.
CNC milling enables high-quality surface finishes, a wide range of material options, and precise tolerance control, making it a popular choice for end product part production.
With the latest CNC milling technology, EPTAHUB can produce high-precision parts with fast delivery, as quick as 1 day.
Additionally, we provide instant quotes for CNC milled parts, saving you days in the Request for Quote (RFQ) process.
CNC milling can achieve high-precision tolerance control, including tolerances below ±0.001 inches. We are a professional team that manufactures truly customized and ready-to-use parts.
The CNC milling process is ideal for both prototyping and mass production of CNC parts. EPTAHUB's strong scale advantage helps you smoothly transition from the testing phase to mass production of 100,000 pieces or more.
Powder coating is sprayed onto the part surface, and then the part is baked in an oven. This finish creates a durable, wear-resistant, and corrosion-resistant coating on the part surface, which is more durable than standard painting processes. A variety of color options are available to meet the desired appearance.
| Description | General Tolerance or Standard |
|---|---|
| Maximum Part Size | Milled parts can be up to 80 inches × 48 inches × 24 inches (2032 mm × 1219 mm × 610 mm) |
| Dimensional Tolerance | For size dimensions (length, width, height, diameter) and location dimensions (position, concentricity, symmetry), the tolerance is ±0.005 inches. |
| Orientation and Form Tolerance | For dimensions ranging from 0 - 12 inches, the tolerance is ±0.005 inches, and the angle tolerance is 0.5 degrees. For dimensions of 24 inches and above, please refer to the EPTAHUB Manufacturing Standards. |
| Precision Tolerance | EPTAHUB can manufacture and inspect parts with precision tolerances, including tolerances below ±0.001 inches, according to your drawing specifications and Geometric Dimensioning and Tolerancing (GD&T) requirements. |
| Minimum Feature Size | The minimum feature size is 0.020 inches (0.50 mm). This size may vary depending on the part geometry and selected material. |
| Threads and Threaded Holes | EPTAHUB can machine various standard thread sizes. Custom threads are also available, but they require manual quote review. |
| Surface Roughness | The standard surface finish is as-machined, with a roughness of up to 125 Ra or better. Additional surface finish options can be specified when requesting a quote. |
| Edge Condition | By default, sharp edges will be chamfered and deburred. If certain critical edges must remain sharp, they need to be indicated on the drawing with clear markings. |
For detailed tolerance information corresponding to each process, please refer to the EPTAHUB Manufacturing Standards. Unless other tolerance requirements are agreed upon in your quote, we will produce and control according to the tolerances specified above.
What Is CNC Milling?A CNC milling machine is an automated cutting device that removes excess material through a rotating spindle head. CNC milling machines come in various sizes and different axis configurations. This manufacturing process is mainly used for cutting harder metals, but can also process a variety of workpiece materials, from plastics and aluminum alloys to stainless steel and titanium alloys.
CNC milling machines excel at contour cutting of harder materials. Like all CNC equipment, CNC milling machines are controlled by G-code generated by Computer-Aided Manufacturing (CAM) software. G-code instructs the machine on how to move the tool head, the rotational speed of the tool, the cutting depth, the movement of the workpiece, and other parameters related to speed, feed rate, and coordinated movements. The complexity of the G-code depends on the number of axes of the milling machine.
Milling machines can also be used for contour cutting of softer materials, but they are not as cost-effective as CNC engraving machines in this regard. The main difference between the two devices is: when a CNC engraving machine is processing, the workpiece remains fixed, and the engraving tool head moves around the workpiece; while a CNC milling machine may move both the tool head and the workpiece. CNC milling machines are mainly used in industrial manufacturing, while CNC engraving machines are more common in low-volume manufacturing fields such as woodworking.
This is the most widely used type of CNC milling machine. Making full use of the movement in the X, Y, and Z directions,
3-axis CNC milling machines can be applied to a variety of machining tasks.
This type of equipment can rotate around the vertical axis, enabling more continuous machining operations by moving
the workpiece.
In addition to the traditional three axes, this type of equipment is additionally equipped with two rotating axes. Therefore,
the 5-axis CNC equipment can machine five sides of the workpiece in one machining process without removing and
repositioning the workpiece. During machining, the workpiece rotates, and the spindle head can also move around
the workpiece. 5-axis milling machines are larger in size and more expensive.
CNC milling machines are designed for high-precision manufacturing and repeatable production, making them ideal for rapid prototyping and small to large batch production runs. CNC milling machines can also process a variety of materials, from basic aluminum alloys and plastics to special materials such as titanium alloys, making them ideal for almost all machining needs. Learn more about the differences between milling machines and lathes, and when to choose the milling process.
Learn how to easily get an instant quote for CNC machining using the EPTAHUB Instant Quoting Engine®.
Select from millions of possible combinations of materials, finishes, tolerances, markings, and certifications for your order.
Receive your parts directly at your doorstep without the hassle of sourcing, project management, logistics, or shipping.
We hold ISO 9001:2015, ISO 13485, and AS9100D certifications.
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Our automated quoting system gives you instant pricing so you can quickly estimate your project costs.
For high-precision or complex parts, our senior account managers can provide more detailed quotes and help you find the best overall solution for your needs.
