When it comes to CNC machined parts production, sandblasting is an important step in the process. But what exactly is sandblasting and why should you use it?

In this article, we'll explore the options available for using sandblasting in your CNC machined parts production process. We'll discuss the different types of media used, as well as the techniques and processes involved.

Sandblasting can be a great way to ensure that your CNC machined parts have the finish you need. It's a cost-effective option that can help you get the most out of your production process. And it's also a great way to make sure you meet any regulatory standards or customer expectations.

So if you're ready to take your CNC machining game up a notch, let's dive into exploring all of the options available when it comes to sandblasting in CNC machined parts production process!

What Is Sandblasting?


Sandblasting is like a powerful gust of wind, blowing away the surface imperfections, old coatings and debris to prepare a clean surface. This blast of air is made up of tiny particles that act as an abrasive, speeding up the process of preparing parts for coating or finishing.

It's the perfect way to get parts ready for painting and other treatments - like giving them a fresh start! Surface preparation is key in CNC machined parts production processes, as it ensures that any coatings applied later adhere properly.

Sandblasting works by removing old coatings and debris from a part’s surface to leave it smooth and even. The abrasive action also helps to create a texture on the part that can improve adhesion between the part and the coating material. This process is often used to treat metal surfaces prior to painting or powder coating for better results.

What Are The Different Types Of Sandblasting Media?

I'm interested in learning about different types of sandblasting media for use in the CNC machined parts production process.

Glass beads seem to be the most common, but I'm curious about what other options are available.

Aluminum oxide is one option I've heard of, but I'm not sure how it compares to glass beads.

Plastic media is another option that I'm unfamiliar with, so I'm curious to know more.

I'm interested to learn more about the pros and cons of each option and which may be the best for my particular application.

Glass Beads

Using glass beads for sandblasting is a popular option when it comes to CNC machined parts production. It's often preferred because of the many advantages it provides - from cost savings to safety concerns.

But before you dive in, there are some important preparation steps you'll need to take. First and foremost, safety should always be your priority. Make sure you wear the right protective gear and that all safety protocols are followed closely. Additionally, ensure that your workspace is properly ventilated, as the glass beads can be hazardous if inhaled or ingested.

Finally, make sure you have the right kind of blasting media on hand; different types of sandblasting media will require different levels of pressure and air flow rate. With these considerations in mind, you're ready to start sandblasting with confidence - so get blasting!

Aluminum Oxide

Aluminum Oxide Sandblasting

When it comes to sandblasting, aluminum oxide is one of the most popular options. It's the ideal choice for situations that require a high level of mechanical abrasion and thermal finishing.

Not only does it provide an effective way to smooth out metallic surfaces, but it also offers a much safer solution than traditional blasting media like glass beads. Plus, it’s cost-effective and easy to find.

So if you're looking for an efficient way to finish your parts, aluminum oxide could be the perfect choice. It's important to note, however, that aluminum oxide can be harder on exposed surfaces than other types of sandblasting media.

Therefore, you'll need to ensure that you have the right protective gear on hand when using it - such as safety glasses and gloves - to avoid any potential harm or damage. Additionally, make sure you follow all safety protocols and use the appropriate air pressure and flow rate for optimal results.

With these considerations in mind, you're ready for a successful sandblasting job!

Plastic Media

When it comes to sandblasting, plastic media is another great option. It's the perfect choice for more delicate applications that require a lighter abrasive and softer finish.

Plastic media can be used to remove surface contamination without damaging the underlying material. Plus, it's much easier on exposed surfaces than other types of sandblasting media, making it safer for workers and parts alike.

When selecting plastic media for your project, you'll need to take into account the size of the abrasive grains as well as the type of plastic selected. Generally speaking, larger particles will provide more aggressive blasting action while smaller grains provide a smoother finish.

Additionally, different types of plastics will offer varying levels of resistance to abrasion and thermal degradation. Ultimately, choosing the right combination of particle size and plastic type will ensure your desired outcome is achieved safely and efficiently.

With all these factors in mind, you're now ready to get started on your next sandblasting job!

What Are The Different Techniques Used In Sandblasting?

Now that we’ve looked at the different types of sandblasting media, let’s explore some of the techniques used for sandblasting. It’s important to know how to use the right type of media and techniques in order to achieve the desired surface preparation.

The most common techniques are air blasting, wet blasting, and dry blasting. Air blasting uses compressed air to make abrasive particles move in a stream. This is a great option for delicate parts that need surface cleaning without damaging them.

Wet blasting is where water is mixed with abrasive particles, allowing it to be more effective and efficient than air or dry blasting. Finally, dry blasting uses only abrasive particles with no liquids or gases involved in the process, making it suitable for most surfaces but not ideal for sensitive materials.

Media selection and technique selection are both integral parts of achieving the desired outcome when it comes to sandblasting CNC machined parts production processes. It's vital to choose the correct type of media and technique in order to get the best results possible.

What Are The Benefits Of Sandblasting In CNC Machined Parts Production Process?

BEFORE and AFTER Sandblasting

Sandblasting in CNC machined parts production process is an effective way to achieve a desired surface finish. With its ability to provide high-quality finishes and contamination control, this method offers many benefits.

For starters, sandblasting can easily strip away any unwanted material layers, like paint or rust, from the surface of the machined part. This not only improves the aesthetics of the part, but also has the potential to significantly reduce scrap rates.

Additionally, sandblasting is capable of providing more precise and uniform surface finishes than other common finishing methods such as grinding or polishing.

The use of sandblasting in CNC machined parts production process also offers significant advantages when it comes to contamination control. By preventing parts from coming into contact with unwanted particles during processing, this technique helps to reduce product failure due to particulate contamination.

Moreover, it can be used for cleaning up complex geometries where conventional cleaning techniques may not be possible.

Overall, sandblasting provides a reliable and efficient way for manufacturing CNC machined parts with improved surface finish and better contamination control.

What Are The Regulatory Standards To Be Met?

Sandblasting is a great way to improve the surface preparation of CNC machined parts. It can be used to effectively remove dirt, rust, paint, and other contaminants from the parts prior to production. And it can also create a smooth finish on the parts for a better overall look and feel.

But it's important to note that sandblasting does come with certain regulatory standards that must be met in order to ensure environmental protection.

When using sandblasting for CNC machined parts production, it's essential to make sure you are adhering to all applicable regulations and safety guidelines. This includes making sure the equipment is properly maintained and operated within its designated area, as well as ensuring proper safety procedures are followed throughout the process.

You should also ensure that any dust particles created during the sandblasting process are disposed of properly in order to minimize potential environmental hazards. By following these guidelines, you can help ensure that your sandblasting operations meet all regulatory standards while still providing a great surface finish on your CNC machined parts.

What Are The Best Practices For Sandblasting In CNC Machined Parts Production Process?

When it comes to sandblasting in the production process of CNC machined parts, there are a few best practices that can be used to ensure the highest quality output.

As with any task, it's important to think of it as an art form and not just a mundane chore. Like a painter creating a masterpiece, each step must be taken with precision and care in order to produce the desired result.

From pre-treatment all the way through post-treatment, having the right tools for the job is key. Whether it's using an air compressor for pressure blasting or utilizing specialty nozzles for those hard to reach places, having the right equipment will go a long way towards achieving success.

Additionally, sandblasting operators must maintain their equipment regularly and keep their safety gear up to date; this helps reduce downtime and keeps everyone safe on the job site.

The importance of proper masking techniques cannot be understated either. Ensuring that only those areas that need blasting are exposed is critical in avoiding potential damage. Taking the time to properly mask off non-targeted areas will help ensure no costly mistakes occur during production.

Finally, understanding what media works best for your particular application is essential when sandblasting CNC machined parts; making sure you select the right media will give you optimal results every time.


Sandblasting has become a critical part of the CNC machined parts production process. It is used to create a smoother finish on metal parts, resulting in improved durability and performance.

With its many benefits, sandblasting is an essential technique that should be mastered by every CNC machinist. In fact, research shows that up to 90% of CNC machining operations make use of sandblasting.

As such, it is important for all machinists to understand the various techniques and best practices involved in successful sandblasting operations in order to maximize their productivity and quality of parts produced.