- High-speed brushless servomotor
- Instrument-grade precision
- ABEC-7 angular contact bearings
- Balanced to ISO 1940 G 1.0
- High acceleration capability (6000 rpm in < 1 second)
- Custom configurations available
Superior Mechanical Design
Matched angular contact bearing sets minimize spindle error motions. In addition, the ASR2000 is balanced to ISO 1940 G 1.0 tolerances. This unique design includes externally accessible balancing screws that can be adjusted with final payload in place. The design also uses labyrinthtype sealing to minimize particle migration from the spindle, resulting in certification for Class 1 clean-room operation. An integral rotary union is provided for a vacuum supply.
Brushless Direct Drive
To maximize positioning performance, the ASR series utilizes Aerotech's brushless motor technology. These motors have all the advantages of a brushless direct-drive motor — no brushes to wear, and high acceleration and high speeds. With its low inherent inertia and high torque output, the ASR is capable of extremely high speeds and accelerations. In addition, the efficient electromagnetic design provides high performance with lower operating temperatures than comparable products.
With a velocity ripple of <0.1%, a total radial error motion =5 µm, and total axial error motion <2 µm, the Aerotech spindle offers superior performance for high accuracy applications. The high performance motor and rotary encoder are directly coupled to a common shaft. The absence of gear trains and mechanical couplings means no position errors caused by hysteresis, windup, or backlash.
Options include mechanical or vacuum chuck configurations. Aerotech manufactures a wide range of servo amplifiers and advanced controllers to provide a complete, integrated package.
|Continuous Current, Stall||Apk||4.6A||2.1A||7.5A|
|Feedback||Directly-Coupled Rotary Encoder|
|Resolution||256-2048 lines/rev - other line counts available|
|Rated Speed(1)||6000 rpm in < 1 second|
|Maximum Load||Radial||89 N|
|Inertia (Unloaded)||0.0002 kg-m2|
|Total Error Motion||Radial||5 µm|
|Asynchronous Error Motion||Radial||3.5 µm|
|Velocity Ripple||<0.1% at 6000 rpm|
|Balance Grade(2)||ISO 1940 G 1.0|
|Bearing Rigidity||Radial||20 N/µm|
|Spindle Weight||33 N|
|Housing||Aluminum (Steel Available)|
|Finish||Electroless Nickel Plating or Black Hardcoat Available|
- Maximum speed based on stage capability; maximum application velocity may be limited by system data rate and system resolution.
- Per ISO 1940, "Mechanical vibration - balancing quality requirements of rigid rotors".
ASR2000 High-Speed Spindle
|ASR2000-60||63 mm (2.48 in) diameter rotary spindle 0.42 Nm (59 oz-in) motor|
|ASR2000-100||63 mm (2.48 in) diameter rotary spindle 0.69 Nm (98 oz-in) motor|
|ASR2000-130||63 mm (2.48 in) diameter rotary spindle 1.0 Nm (140 oz-in) motor|
Mounting and Grid Pattern
|-M||Metric-dimension mounting pattern and holes|
|-2048H||2048 lines/rev directly-coupled rotary encoder|