Ceramic CNC Machining Services

Devoted to offering the best ceramic CNC machining services with advanced ceramic machining technology. Adhere to specialization, quality, and craftsmanship.

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    Runsom has been dedicated to the precision machining of custom CNC ceramic parts for over a decade. What sets us apart is our incredible machining services from the fast quote online for ceramic projects to the on-time delivery of end-use ceramic parts with high quality and exact dimensions specified.

    Industrial Ceramic CNC Machining Supplier

    Are you looking for a professional manufacturer to process your on-demand ceramic projects at your desired time and budget? Turn to Runsom, and the challenge you are encountering will be settled down rapidly. We are a reliable company with extensive experience in the field of ceramic CNC machining for custom ceramic prototypes and parts. Our excellent CNC machining for ceramics will beyond your expectation either at the most competitive price or in the highest quality. Work with Runsom, you’ll enjoy the industrial CNC milling, grinding, and polishing of non-sintered (“green”) and sintered ceramics.

    CNC Machining Processes for Ceramics

    There are two main CNC machining processes for ceramics, that is, CNC milling and core drilling.

    CNC Milling

    CNC Milling Ceramic Parts

    CNC milling involves a manufacturing process with a highly customizable automated mode. More than carrying out the same operation as drilling or cutting, CNC Milling machines can conduct each of them at almost any angle. They can be oriented either horizontally or vertically according to the properties of the target material together with the nature of the cutting operations. The desired ceramic parts are created by consistently removing extra materials from the workpiece, which depends on the computerized controls and specialized cutting tools.

    A CNC milling machine conducts the milling process through four production steps similar to other machining models.

    • A CAD model for the product
    • A conversion from the CAD model to a CNC program
    • Setup of the CNC milling machine for production
    • Execution of the milling operation

    Core Drilling

    Core Drilling Ceramic Part

    Core drilling refers to a process that removes a cylindrical core from the drill hole. A core drill consists of three main parts:

    • Handle
    • Bits or drill bits
    • Motor

    The drill bits are usually coated with different objects relying on their different usages. For instance, core drills with a diamond-coated drill bit are normally used for cutting concrete on big construction projects, whereas a carbide-coated bit is often found in a masonry core drill. Core drilling makes it possible for both the formation of a hole and the clean removal and analysis of a core of the ceramics.

    Characteristics of Ceramics

    There are large quantities of remarkable properties that ceramics possess. Certainly, it’s worthwhile to recognize its several shortcomings.

    Benefits of Ceramics

    Ceramics can bear a very high temperature.

    Ceramics are often the case used to insulate critical wires and components since they have good electrical insulation.

    Given their high resistance to harsh thermal cycling and friction, ceramics can be easily a target for parts that require friction but also meant to last for long time and hard wearing.

    Ceramics are corrosion-resistant because they do not react to other chemicals. They can make sensitive instruments free from contamination.

    Generally speaking, ceramics are less expensive than several other materials. A case in point is that installing ceramic tiles is cheaper than carpet or hardwood floors.

    Ceramics remain their color for a longer time than some materials like cement and stone. If you paint on ceramic materials, the color will stick to the surface and will maintain for the next few years. Therefore, it's preferable to apply it to interiors like floors and walls to keep the bright color for years.

    Benefits of Ceramics

    Weakness of Ceramics

    Weakness of Ceramics

    Compared to most metals, ceramics have lower strength. So when it comes to high tensile strength, it's suggested to use metals rather than ceramics.

    Ceramics are easy to be cracked when they suffer from heavy hits or impacts, which may cause fatal damage.

    It is difficult to master the dimensional tolerance of ceramics in the machining process.

    Technical Ceramic Materials for CNC Machining

    Aluminum Nitride (AlN)

    Aluminum Nitride (AlN) Ceramic CNC MachiningAluminum Nitride (AlN) ceramic is a hybrid type of ceramic known for its high mechanical strength and great thermal conductivity.

    Boron Nitride (BN)

    Boron Nitride (BN) Ceramic CNC MachiningBoron Nitride (BN) ceramic is an advanced synthetic ceramic material available in two forms: solid and powder. Different from other traditional ceramic materials, BN has incredible thermal conductivity.

    Silicon Nitride

    Silicon nitride ceramic for CNC machining

    Silicon Nitride ceramic is one of the most widely used of all technical ceramic materials. It has an excellent combination of thermal, mechanical, and electrical properties.


    Zirconia CNC MachiningZirconia outperforms traditional ceramics that are brittle and hard with their excellent strength, wear resistance, and flexibility.


    Quartz CNC MachiningQuartz has great chemical, thermal, and optical properties and is often used in lighting and semi-conductor fields. This is best done with grinding, diamond tools, or water jets. Abrasive techniques are far more useful than any cutting technique.

    Our Tolerances for CNC Ceramic Machining

    The extreme tolerance can be realized once the size, geometry, and shape of ceramic parts are determined. We continuously strive to be a trustable supplier who can provide our customers with custom CNC machining parts of the highest quality and tight tolerance as per their specifications. Our advanced measuring equipment and highly skilled QC inspectors lay a sound guarantee for each product in the whole manufacturing process.

    Turning or Milling General Tolerance of ±.03mm, can achieve ±.01mm with a surface finish of N4/N5

    Grinding General Tolerances of ±.02mm, can achieve ±.01mm with a surface finish of N2/N3

    Synchronized rigid tapping in CNC mills and lathes perfect for premium internal threads

    Size capacity up to 450mm (18”) CNC milling, turning, and grinding

    250mm diameter CNC turning capability with power tools

    CNC Milling bed capacity of 1000mm in X and 510mm in Y

    CNC Milling spindle speed of 12,000 rpm

    Tolerances for CNC Ceramic Machining

    Tips for Designing and CNC Machining Ceramics

    You are supposed to keep in mind some specific inherent characteristics that ceramics possess when starting product design. Ceramics are so brittle that they can crack easily. Thus, it's greatly vital to keep stress from focusing on just a single point. Several tips below may be useful for your CNC machining of ceramics:

    Tips for Designing and CNC Machining Ceramics

    Employ modular design

    Avert sharp and long edges

    Do not change cross section suddenly

    Make sure hole distances are long enough

    Use round designs rather than oval designs

    Utilize simple wall designs and shapes instant of complicate ones

    Convert tensile stress to compressive stress: this will enable the ceramic to absorb more stress without fracture

    Why Choose Us for Your Ceramic CNC Machining

    High Flexibility of Ceramic CNC Machining

    We can offer multi-alternatives for your choice to satisfy your needs with abundant feasible combinations of materials, machining methods, and surface finishing options.

    High flexibility

    Preferential price for ceramic CNC machining at Runsom

    We provide our clients with the most efficient solutions to their CNC machining projects while remaining sound quality assurance. We can understand customers’ expectations for getting their parts of good quality at low prices.

    Preferential price

    Quality Reliability Provided by Runsom

    We have explored the CNC machining field for over a decade, and we are keeping forging ahead in this industry with our commitment to offering the best customer support service and our mission to let each customer receive the best quality parts created by us.

    Firm quality

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    Applications of CNC Machined Ceramics

    CNC machined ceramics are popular among a wide variety of industries owing to their excellent hardness and durability properties. Particularly
    these three industries are preferable to apply ceramics made by CNC machining.

    Our products include:

    • Polished substrates, Aluminum Nitride ceramic, Zirconia
    • Ceramic bushings, ceramic seals, ceramic heat sinks, ceramic rods, ceramic insulators, ceramic tubes
    • Custom-shaped ceramics
    • Vacuum ceramics chucks
    Ceramics Parts for Electronic Industry

    Ceramic CNC machining is feasible for electrical applications that require parts with extreme complexity and wear resistance. It is greatly suited for protection against electrical hazards as its electrical insulating characteristics.

    Electronic industry

    Ceramics Parts for Industrial Areas

    CNC machined ceramic parts also have a significant impact when there are demands on high precision and intricate industrial components. Because of the high wear resistance of ceramics, it even makes it a better choice for durability purposes.

    Industrial areas

    Ceramics Parts for Medical Industry

    Lots of ceramic micro-parts produced via CNC machining are used in health and care. Typical products like bioceramics are employed as implants in the body without incurring any type of adverse reaction. Another representative ceramic such as zirconia is an ideal implant in dental applications due to its high wear resistance.

    Medical industry

    Ceramic CNC Machining FAQs

    Ceramics are fragile due to their chemical bonds. Ionic and covalent bonds that chemically bond atoms of ceramics are stable ones bonded only in specific directions.

    If ceramics have ever been sintered into a hardened status, it would be a big challenge in the CNC machining process because the chunks or debris would fly everywhere. Therefore, the most effective method of CNC machining for ceramics is either in the non-sintered (“green”) compact state or in the presintered (“bisque”) form.

    In the presintered state, machining processes such as CNC milling, turning, and grilling are all feasible for handling ceramic parts. In the bisque state, the material removal required (MRR) achievable by the machine tool can be comparable to that of tool steel and die steel.

    Grinding is generally applied to process ceramics in their sintered state. A polished surface finish can be realized with the help of the abrasive wheel. It is also preferable to use a fluid coolant to lubricate the area being ground for grinding ceramics. It is better to use resin-bonded wheels that press synthetic or natural diamonds of different particle sizes in polymer resin at different concentrations for sintered ceramics.

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