ACCELERATING VIBRATORY DEBURRING

Setting Up Your Vibratory Finishing Bowl

Part Two

If you joined us for part one of “Accelerating Vibratory Deburring”, you understand vibratory deburring and the significant impact that low media levels can have on productivity. Today, we’re continuing our series by revisiting the fundamentals of setting up your vibratory bowl. This information will also be valuable if you’ve relocated your finishing unit, acquired a new or used vibratory bowl, or suspect that your setup wasn’t initially done correctly. We’ll guide you through the steps to ensure your machine is properly set up and optimized.

Need Assistance With Process Development?

At Rodeco, we offer complimentary process development services tailored to your specific needs. Our team will work closely with you to find the most cost-effective and efficient methods for achieving your desired finish.

Let’s Chat about what you need and how we can make it happen.
Call us at 919-775-7149

How Do I know if My Bowl is Improperly Set Up?

An experienced mass finishing operator can easily spot issues with a running bowl, while those less familiar with the process (who often call vibe media “rocks”) may have difficulty recognizing problems or mistakenly assume the machine is working correctly. This can impact both the speed of your process and the quality of your parts. If your tumbler is using the correct amount of media (as covered in our previous blog), here are a few critical areas to examine more closely.

Pre-Process Indicators of an Issue:

  • If the media mass is rising in the middle of your bowls channel
  • If the media mass is breaking to both the outside of the bowl and also the center


Quick Tip
– Place a handful of media on the top weight cover (middle of bowl) and ensure the media migrates to the center (if moves towards the edge you may have to correct motor rotation).

If you notice one or both of these issues, it’s important to troubleshoot your vibratory finisher promptly. Before making any adjustments, always adhere to all safety guidelines and lockout/tagout procedures to ensure a safe working environment. For complex issues or if you’re unsure, it’s highly recommended to contact your maintenance department for expert assistance in resolving the problem or contact Rodeco 800-849-0871 and set up a service assessment. 

(Note: Once your weight segments are properly set and the finisher is functioning correctly, avoid making any adjustments unless a new process necessitates it.)

  1. Check the bowl’s motor and locate the directional rotation sticker to ensure it’s rotating in the correct direction. Typically, I turn off the motor and wait until it slows down sufficiently to accurately determine the direction of rotation. Others have marked the motor shaft or a connected component, allowing them to check these marks to determine the direction of rotation.  If the rotation is reversed, ask the shop electrician to reverse the electrical leads to correct it. 
  1. Next, check the weight segments and settings. Remove the weight covers or shields from the top and bottom of the finisher (they should unbolt easily). Start by consulting the service manual, as configurations can vary by manufacturer. The motor always needs to rotate opposite of the process’s direction. The top master weight should follow the bottom master weight by 90 degrees approximately. So if your process is travelling counter-clockwise then your motor should be going clockwise and when the bottom master weight is at 6 o’clock the top master weight should be at 3 o’clock.
  1. Once you have verified the motor direction, and the master-weights, we may need to add or remove weights from both the top and bottom. Typically, I begin with 3 weights on the bottom master and 2 on the top master, and then assess the machine’s performance. After ensuring the bowl is filled properly, then more weight needs to be added to the bottom of the machine to increase the amplitude. If the machine is too choppy at this point, then more weight can be added to the top to help turn this into a roll effect. Remember that small steps are best when engaging in changes such as this. 

Watch the vibratory deburring process in action

If you’ve followed the process development steps to verify that you have the correct media, compound, and equipment for your desired finish, and have adhered to the setup procedures, your machine should consistently produce the approved finish. However, if any changes arise in your pre-finishing process—such as variations in the starting condition of your parts or a different part number —it’s crucial to address them promptly. The vibratory process treats each part uniformly, ensuring a consistent finish if the parts start with consistent conditions.

Achieve Success with the Rodeco Process Development Lab

Ensuring your vibratory bowl is set up correctly is crucial for maximizing productivity and achieving optimal results. In part one of “Accelerating Vibratory Deburring,” we explored the importance of maintaining proper media levels. Building on that, today’s guide delves into the fundamentals of setting up your vibratory bowl, which is essential whether you’re working with a new or used unit, or have relocated your finishing system.  Before diving into setup, it’s essential to begin with process development to ensure you have the right media and compound for efficient processing. Fortunately, you don’t have to invest extensive time, money, and resources into this development yourself—Rodeco provides a free process development lab to serve as your R&D department.  Reach out to Rodeco to discuss your finish requirements, and set up a test of your parts at 800-849-0871

Need to replenish your media supplies?

We carry a large supply of media that is ready to ship out today.

Call us at 919-775-7149
or visit Blast Media to find out more.