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Are you ready to add the next level of productivity to your AVID CNC machine?

Hundreds of AVID CNC users already trust CNC Depot spindles to take their AVID machine to new levels of productivity.  With the expanded capabilities of our RM series, AVID users now have access to even higher productivity spindle options for their machines.  Whether you have limited power input capabilities, or need extra raw horsepower to push through those slabbing operations, the RM series offers the best options in the lightest package.

Please refer to the standalone product pages for model specifications.

Is your input power limited to 120VAC?  This is the option for you:

Our flagship offering for the AVID CNC machine.  The 4hp workhorse:

Need that extra HP for heavy machining operations?

Other details you will need to know when installing an ATC spindle on an AVID machine:

First, download and review our AVID/Mach4 installation guide HERE.

The RM Series spindles also includes an additional fan power cable, and that needs to be connected as shown HERE.

What other items will you need?

Spindle Mounting

The RM series spindles mount to the AVID machine using AVID's 4hp tramming mount.  You will need to purchase that mount from AVID.  Please note, that the bolt holes in the RM series spindle that matches the 4hp tramming mount are 1/4"-20 thread type on the spindle, NOT M6.  Do not try and force M6 bolts into the holes on the RM series spindles.

Please note:  It has come to our attention that the previous generation of AVID 4hp tramming mounts, CRP144-01 / 1CRP44-03, are not compatible with the RM series spindles.  If you have a machine built prior to 2020, please check the part numbers of your tramming mount.  The latest version, CRP144-21 / CRP144-33, is compatible.  If you have an older version, you will need to purchase a new version for the RM series spindle from HERE.

Tool Rack

Because of the modular nature of the AVID machine, we do not offer a ready made tool rack for the platform at this time. However, our packages do include tool forks, which are ready to mount to your own linear tool rack to complete your ATC setup.

If you'd rather not make your own tool rack, here is a good option for a pre-built tool rack base.  You can bolt this base to your machine and attach the tool forks from your spindle package directly to it.

ATC Tool Racks

Many users of our spindles will install the spindle and operate it as a "quick change" spindle, before setting up the machine for full automatic tool change functionality.  This is popular option, because you can drastically reduce the time required for tool changes without the immediate need to invest the time to set up the full ATC system.  The Mach 4 screenset, included in the installation file here, adds a drawbar control button to the Mach 4 screen so that you can easily control the drawbar from Mach 4

Air Compressor

You will need a clean, dry air source for case pressure and drawbar operation of the ATC spindle.  A minimum of 90psi is required to open the spindle drawbar, however we recommend setting your pressure regulator to 100-110psi. The higher pressure setting helps to overcome any pressure loss in the supply line, ensuring reliable tool release.

Minimum air supply is 2-3 cfm @ 100psi.

Case pressure accepts 30-110psi air pressure, so you can either run it on the same source as your drawbar supply, or regulate case pressure separately to reduce overall air consumption of the system.  Case pressure is not required for all applications.  It is especially useful when cutting very abrasive materials that produce small, light particles that tend to float in the air.  Graphite, composites and MDF are good examples.  Case pressure is required if you are running any sort of coolant (flood or mist) for your cutting application.

When case pressure is used, the spindle consumes approximately 2scfm of air at 100psi constantly, so a compressor with a large storage reservoir and/or flow capability of 2-3x that amount is recommended.  This will help reduce the duty cycle requirement for your compressor.


Here are some videos of customer machines that utilize our ATC spindles.  Some include great advice on how setup your AVID machine for ATC functionality.

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