VRT High Speed Spindles

Bryan Machine manufactures VRT High Speed Spindles, also known as Spindle Speeders, and Turbine Spindles. If you are tired of expensive high-speed machines that don’t have the torque for low-speed work you have come to the right place. Now you can have both. When interfaced with your control, these High Speed Spindles can be used like any other tool in your tool changer, completely unattended. You don’t even have to buy a Spindle for each speed that you need to run. Our High Speed Spindles have a regulated variable speed from 15,000 to 40,000 rpm. The Turbine Spindles have low noise and low air consumption (.5 hp at 20,000 rpm). There are no gears, veins, or heat; just low maintenance and high-speed power.

• Turn on & off with a command in your program (on machines equipped with a user M code for interfacing).
• Along with your machine controlled auto coupler, this Turbine Spindle can be used like any other tool in your tool changer.
• Use your CNC machine and Turbine Spindle for engraving, jig grinding, profile grinding, high speed machining & graphite machining.
• Other mounting solutions available for our High Speed Spindles – Straight Shank, BT Taper, Cat 40 and Cat 50.

Part Number	Description
ACH125C	Auto coupler complete for haas vmc (can adapt for other machines )
C-40-280	CAT 40 base 2.875 center to center
C-40MAS15177	Cat 40 shank to fit c40 base
C-50-325	Cat 50 base 3.25 center to center vmc base
C-50MAS1524	Cat 50 shank to fit c50 base
SS1.B	Strait shank and base .75 dia shank (There is no coupler with this base. It is meant to be a manual air hookup)
C-50-HCA	Cat 50 adapter for haas 50 taper spindle (adapter for coupler)
AC-AH-124	Auto coupler actuator for haas 1.25 sizes (machine mounted side. this will allow you to move spindle’s to other machines)
AC-LV-124	Auto coupler lower valve 1.25 size (base mounted side)
Vrtntmt275achc50325 (Machine tool ready)	Machine tool series abec 9 angular ceramic contact & deep groove bearings with cat 50 shank, C-50-325 base, auto coupler tachometer 1/8 collet wrenches air valve (can adapt for other machines price on request)
VRTNTMT275 (spindle only)	Machine tool series abec 9 ceramic angular contact & deep groove bearing with the no tool (nt) speed adjustment
VRTNTMT2754028 (spindle with base and shank only)	Machine tool series abec 9 angular contact & deep groove bearing with the no tool (nt) speed adjustment
Vrtntmt275achc40280 (Machine tool ready)	Machine tool series abec 9 ceramic angular contact & deep groove bearings with cat 40 shank, C-40-280 base, auto coupler tachometer 1/8 collet wenches air valve (can adapt for other machines price on request)
Md manual adapter
Vrtntmt275achc40280C (Machine tool ready)	Machine tool series abec 9 ceramic angular contact & deep groove bearings with cat 40 shank, C-40-280C coolant threw spindle base, auto coupler tachometer 1/8 collet wenches air valve (can adapt for other machines price on request)
Base plate adapter for 1 inch shell shank	This adapter can be used with any shell mill holder or shank with a 1 inch od and will still allow for a concentric adjustment
Bearing replacement	Bearing replacement includes new bearings rebalance and regrind of spindle ER11 taper. And internal regulator valve replacement
Spindle rotor and bearings assembly	This is a repayment assembly meant for replacement for a crashed or damaged unit includes spindle itself and rotor assembly and bearings

The VRT is a compressed air turbine with an internal regulator, meaning it works to maintain the same speed in varying loads. The regulator is operator adjustable from the 15,000 to 40,000 rpm range. When used in a CNC machine with the auto coupler, it can be used like any other tool in a tool changer for unattended operation. So it is completely tool changeable.

The ACH125C is the auto coupler and is what allows completely unattended operation for the VRT. Originally designed for Haas VMC it is also adaptabe to most CNC machines, including lathes and grinders. We can adapt the coupler to virtually any machine.

When not in use, both sides of the AC are closed to prevent coolant and debris from entering. When interfaced to the CNC control a simple command engages the AC and starts the VRT.

The NT in (VRTNTMT) is a “no tools” speed adjustment, meaning the tool and collet do not have to be removed to change the speed. The pushing of a button and turning the spindle will increase or decrease speed.