ALS2200 Mechanical-Bearing Direct-Drive Linear Stage
Description
Design Features
- Fully enclosed design
- Exceptionally smooth and cog-free motion
- Powerful linear brushless servomotor
- High accuracy and up to 3 nm resolution
- Outstanding straightness/flatness
By combining a powerful linear motor drive with high-accuracy crossed-roller bearings and a fully sealed system, the ALS2200 is a production-grade stage with exceptional performance.
Superior Construction
Designed for applications requiring exceptional smoothness of travel, the ALS2200 utilizes precision crossed-roller bearings. Since there are no recirculating elements, vibration throughout travel is minimized resulting in outstanding velocity stability. Machined from a stress-relieved special aluminum-alloy extruded base, the ALS2200 has excellent stiffness and long-term stability.
Linear Motor Drive
The ALS2200 utilizes an ironless core so it is a cog-free design. The lack of cogging enables extremely tight velocity control, as well as superior contour motion profiles. As with all of Aerotech’s ALS series stages, there is zero backlash, no windup, zero friction and outstanding system responsiveness.
Outstanding Resolution
Many applications require outstanding step-to-step resolution. The ALS2200 meets this demand with a resolution of 3 nm when coupled with Aerotech control products. The direct-drive linear motor allows the ALS2200 to make precise, small resolution steps that are particularly important in alignment applications where step accuracy is critical.
Enclosed Design
To protect the stage from debris and particulates, the ALS2200 incorporates a full-length metal waycover and advanced sealing system. Tensioned side straps are used in lieu of bellows which are difficult to keep clean and increase the overall stage profile. The straps are in a vertical orientation that prevents debris from accumulating and the straps are under constant tension to create a tight seal.
Convenient Assembly
The tabletop of the ALS2200 is treated with a protective, scratch-resistant, Teflon®-impregnated hardcoat (Rockwell 62 hardness). All of the tabletop mounting holes utilize stainless-steel Helicoil® inserts to protect against thread wear. The base mounting holes are located outboard of the stage, which allows the stage to be mounted without removing the hardcover.
The ALS2200 utilizes a moving magnet design in the linear-motor drive mechanism. As a result, there are no moving cables and therefore no cable management system, simplifying system interconnection.
Specifications
Mechanical Specifications
| Model | ALS22010 | ALS22015 | |
|---|---|---|---|
| Travel | 100 mm | 150 mm | |
| Accuracy(1) | Standard | ±4.0 µm | ±6.0 µm |
| HALAR | ±0.75 µm | ||
| Resolution | 3 nm | ||
| Repeatability(1) (Bidirectional) | ±0.2 µm | ||
| Repeatability(1) (Unidirectional) | ±0.1 µm | ||
| Straightness(1) | ±1.5 µm | ±2.0 µm | |
| Flatness(1) | ±1.5 µm | ±2.0 µm | |
| Pitch | 10 arc sec | 14 arc sec | |
| Roll | 10 arc sec | 14 arc sec | |
| Yaw | 8 arc sec | 10 arc sec | |
| Maximum Speed | 500 mm/s | ||
| Maximum Acceleration | 1 g | ||
| Maximum Force (Continuous) | 32.4 N | ||
| Load Capacity(2) | Horizontal | 30 kg | |
| Side | 30 kg | ||
| Moving Mass | 6.4 kg | 7.4 kg | |
| Stage Mass | 14 kg | 16 kg | |
| Material | Aluminum | ||
| MTBF (Mean Time Between Failure) | 20,000 Hours | ||
- Certified with each stage.
- Axis orientation for on-axis loading is listed.
- Specifications are for single-axis systems measured 25 mm above the tabletop. Performance of multi-axis systems is payload and workpoint dependent. Consult factory for multi-axis or non-standard applications.
Electrical Specifications
| Drive System | Brushless Linear Servomotor |
| Feedback | Noncontact Linear Encoder |
| Maximum Bus Voltage | 320 VDC |
| Limit Switches | 5 V, Normally Closed/Normally Open |
| Home Switch | Near Center |
Recommended Controller
| Multi-Axis | A3200 | Ndrive MP/Ndrive CP/Ndrive HPe/Ndrive HLe |
| Ensemble | ||
| Single Axis | Soloist | Soloist MP/Soloist CP/Soloist HPe/Soloist HLe |
Dimensions
-
ALS2200 Dimensions 
Ordering Information
Ordering Example
| ALS2200 | -015 | -M | -NC |
Ordering Options
| Series | Travel (mm) | Mounting and Grid Pattern | Limits |
|---|---|---|---|
| ALS2200 | -010 -015 |
-M | -NC -NO |
ALS2200 Series Linear Motor Stage
| Option | Description |
|---|---|
| ALS22010 | 100 mm (4 in) travel stage with linear motor, crossed-roller bearings and limits |
| ALS22015 | 150 mm (6 in) travel stage with linear motor, crossed-roller bearings and limits |
Mounting and Grid Pattern
| Option | Description |
|---|---|
| -M | Metric dimension mounting pattern and holes |
Limits
| Option | Description |
|---|---|
| -NC | Normally-closed end of travel limit switches (standard) |
| -NO | Normally-open end of travel limit switches |
Accessories (to be ordered as separate line item)
| Option | Description |
|---|---|
| HALAR | High accuracy system; linear error correction for accuracy and repeatability |
| HALSF | High accuracy system; improved straightness and flatness |
| ALIGNMENT-NPA | Non-precision XY assembly |
| ALIGNMENT-PA10 | XY assembly; 10 arc second orthogonal |
| ALIGNMENT-PA5 | XY assembly; 5 arc second orthogonal |