Our ISO 2.25C (60,000 rpm) captured thrust, integrally motorized air bearing spindle is ideal for high speed and extreme accuracy applications such as conventional flycutting, raster flycutting, internal grinding and optical mold grinding. The spindle’s central stiffness and extremely low error motion while being driven with a powerful brushless-DC motor can not be matched by any other spindle manufacturer in the world.

Inlet Pressure: 6.9 bar
Air Flow Rate: 10.0 lpm
Ultimate Axial Load Capacity: 340 N
Ultimate Radial Load Capacity: 195 N
Axial Stiffness (at spindle nose): 65 N/µm
Radial Stiffness (at spindle nose): 20 N/µm
Axial Error Motion: < 25 nm (at 50,000 rpm)
View/Download spindle drawing in PDF format

Radial Error Motion: < 25 nm (at 50,000 rpm)
Maximum Speed: 60,000 rpm
Motor Torque: 0.47 N·m continuous to 58,000 rpm (B06-25 motor)
Drive Amplifier: MCS AX-1000
Encoder: US Digital #E5D, 100 line count
Spindle to amplifier cables: 4.0 meters long
Spindle Weight: 6.8 kgs
External regen braking resistor (25 ohms x 300 watts)
Interference fit tool mounts