ALS25000 Mechanical-Bearing Direct-Drive Linear Stage
Description
Design Features
- Protective metal waycover and side seals for harsh environments
- Integral cable management system
- High-performance direct-drive linear motor for superior servo performance
- Compact footprint for limited space requirements
The ALS25000 was designed to have a low profile, with protective metal waycover and side seals, intelligent cable management, exceptional velocity control, low vibration, high accuracy and excellent throughput, making it the ideal solution for demanding applications in dirty environments.
High Performance in a Compact Package
ALS25000 series stages incorporate the highest quality materials and design elements. The result is a high-reliability linear stage with excellent accuracy, straightness and flatness performance and a virtually unlimited, trouble-free service life.
Recognizing the importance of stage stiffness, the ALS25000 linear bearings are supported by the maximum cross-section possible while still maintaining an overall low profile. Outstanding system straightness and flatness are obtained, particularly in XY configurations.
Linear Motor Drive
Unlike other linear motor stage designs that utilize an iron-core flat motor design, the ALS25000 is driven by a high-power ironless forcer and U-channel magnet track. This design is superior in high-performance applications. Since the forcer is ironless it is a cog-free design. The lack of cogging enables extremely tight velocity control as well as superior contour motion profiles without sacrificing speed or acceleration. The magnetic field of the linear motor is totally self-contained within the U-channel design. Most high-performance applications cannot tolerate the stray magnetic fields generated by flat motor magnet tracks.
The magnet track is composed of opposing rows of high-power magnets that help to generate high output forces. This approach eliminates the need for an iron-based core, which has an inherent magnetic attraction between the forcer and the magnet track. This attractive force presents an additional load to the bearings that reduces stage life and performance.
Cable Management System
Extensive R&D has resulted in an optimized cable management system (CMS) that is designed for millions of cycles of maintenance-free operation. Designed to provide a turnkey system for both single- and multi-axis systems, upper-axis cabling is incorporated into the overall system CMS. To facilitate integration into the final system, a spare 25-pin D-connector and cabling are included for customer use. Custom configurations are common and are readily available.
Specifications
| Model | ALS25010 | ALS25020 | ALS25030 | ALS25045 | ALS25060 | |||
|---|---|---|---|---|---|---|---|---|
| Travel | 100 mm | 200 mm | 300 mm | 450 mm | 600 mm | |||
| Drive System | Linear Brushless Servomotor (BLM-142-A) | |||||||
| Bus Voltage(1) | Up to 160 VDC | |||||||
| Continuous Current(2) | Apk | Up to 3.10 A | ||||||
| Arms | Up to 2.19 A | |||||||
| Feedback | Noncontact Linear Encoder | |||||||
| Resolution | LN | 0.001 µm - 0.2 µm | ||||||
| LT | 0.005 µm - 1.0 µm | |||||||
| Maximum Travel Speed(3) | 2 m/s | |||||||
| Maximum Linear Acceleration | 3 g (No Load) | |||||||
| Maximum Load(4) | Horizontal | 70.0 kg | ||||||
| Side | 35.0 kg | |||||||
| Accuracy | LN | HALAR(5) | ±1.0 µm | |||||
| Standard | ±5.0 µm | |||||||
| LT | HALAR(5) | ±1.0 µm | ||||||
| Standard | ±4.0 µm | ±8.0 µm | ±12.0 µm | ±18.0 µm | ±24.0 µm | |||
| Repeatability | LN | ±0.5 µm | ||||||
| LT | ±0.5 µm | |||||||
| Straightness and Flatness | Differential | HALSF | 1 µm/25 mm | |||||
| Standard | 2 µm/25 mm | |||||||
| Maximum Deviation | HALSF | ±1.0 µm | ±1.5 µm | ±2.0 µm | ±2.5 µm | ±3.0 µm | ||
| Standard | ±2.0 µm | ±4.0 µm | ±6.0 µm | ±9.0 µm | ±9.0 µm | |||
| Pitch and Yaw | 5 arc sec | 8 arc sec | 12 arc sec | 17 arc sec | 20 arc sec | |||
| Nominal Stage Weight | 13.5 kg | 17.5 kg | 21.0 kg | 27.0 kg | 32.5 kg | |||
| Moving Mass | 6.1 kg | |||||||
| Construction | Aluminum Body/Black Anodize Finish/Hardcoat (62 Rockwell Hardness Teflon® Impregnated) | |||||||
- 80 VDC bus limit with standard ribbon cable. Up to 320 VDC is available with round cables.
- Current values based on high performance (-P) magnet track.
- Maximum speed based on stage capability. Maximum application velocity may be limited by system data rate and system resolution.
- Maximum load based on bearing capability. Maximum application load may be limited by acceleration requirements.
- Available with Aerotech controllers.
- Specifications are for single-axis systems measured 50 mm above the tabletop. Performance of multi-axis systems is payload and workpoint dependent. Consult factory for multi-axis or non-standard applications.
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ALS25000-spec 
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ALS2500-spec2 
Dimensions
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ALS25000 Dimensions 
Ordering Information
Ordering Example
| ALS25 | 030 | -M | -10-S | -LN30AS | -NO | -X-CMS |
Ordering Options
| Series | Travel (mm) | Mounting and Grid Pattern | Motor and Magnet Track | Linear Encoder | Limits | Options |
|---|---|---|---|---|---|---|
| 010 020 030 045 060 |
-M -M/ASR -U |
-10-S -10-P |
-LTnnAS -LTnnX5 -LNnnAS |
-NO -NC |
-X-CMS -XY-CMS -XYZ-CMS -XYZT-CMS -Y-CMS -YZ-CMS -YZT-CMS |
ALS25000 Series Linear Motor Stage
| Option | Description |
|---|---|
| ALS25010 | 100 mm (4 in) travel stage with linear motor and limits |
| ALS25020 | 200 mm (8 in) travel stage with linear motor and limits |
| ALS25030 | 300 mm (12 in) travel stage with linear motor and limits |
| ALS25045 | 450 mm (18 in) travel stage with linear motor and limits |
| ALS25060 | 600 mm (24 in) travel stage with linear motor and limits |
Mounting and Grid Pattern
| Option | Description |
|---|---|
| -M | Metric dimension mounting pattern and holes |
| -M/ASR | Metric dimension mounting pattern and holes; mounts ASR rotary stages centered |
| -U | English dimension mounting pattern and holes |
Motor and Magnet Track
| Option | Description |
|---|---|
| -10-S | Brushless linear motor with standard magnet track (BLM-142-A) |
| -10-P | Brushless linear motor with high performance magnet track (BLM-142-A) |
Standard Linear Encoders
| Option | Description |
|---|---|
| -LT10AS | Linear encoder for ALS25010; amplified sine output 1 Vpp (20 µm signal period); requires signal multiplier |
| -LT20AS | Linear encoder for ALS25020; amplified sine output 1 Vpp (20 µm signal period); requires signal multiplier |
| -LT30AS | LInear encoder for ALS25030; amplified sine output 1 Vpp (20 µm signal period); requires signal multiplier |
| -LT45AS | Linear encoder for ALS25045; amplified sine output 1 Vpp (20 µm signal period); requires signal multiplier |
| -LT60AS | Linear encoder for ALS25060; amplified sine output 1 Vpp (20 µm signal period); requires signal multiplier |
| -LT10X5 | Linear encoder for ALS25010; 1.0 micron line driver output |
| -LT20X5 | Linear encoder for ALS25020; 1.0 micron line driver output |
| -LT30X5 | Linear encoder for ALS25030; 1.0 micron line driver output |
| -LT45X5 | Linear encoder for ALS25045; 1.0 micron line driver output |
| -LT60X5 | Linear encoder for ALS25060; 1.0 micron line driver output |
High-Accuracy Linear Encoders
| Option | Description |
|---|---|
| -LN10AS | High-accuracy linear encoder for ALS25010; amplified sine output 1 Vpp (4 µm signal period); requires signal multiplier |
| -LN20AS | High-accuracy linear encoder for ALS25020; amplified sine output 1 Vpp (4 µm signal period); requires signal multiplier |
| -LN30AS | High-accuracy linear encoder for ALS25030; amplified sine output 1 Vpp (4 µm signal period); requires signal multiplier |
| -LN45AS | High-accuracy linear encoder for ALS25045; amplified sine output 1 Vpp (4 µm signal period); requires signal multiplier |
| -LN60AS | High-accuracy linear encoder for ALS25060; amplified sine output 1 Vpp (4 µm signal period); requires signal multiplier |
Limits
| Option | Description |
|---|---|
| -NC | Normally-closed end of travel limit switches (standard) |
| -NO | Normally-open end of travel limit switches |
Options
| Option | Description |
|---|---|
| -X-CMS | Cable management system for single-axis assembly |
| -XY-CMS | Cable management system for X-Y assembly; order with X axis only |
| -XYZ-CMS | Cable management system for X-Y-Z assembly; order with X axis only |
| -XYZT-CMS | Cable management system for X-Y-Z-T assembly; order with X axis only |
| -Y-CMS | Cable management system for X-Y assembly; order with Y axis only |
| -YZ-CMS | Cable management system for Y-Z assembly; order with Y axis only |
| -YZT-CMS | Cable management system for Y-Z-T assembly; order with Y axis only |
Accessories (to be ordered as separate line item)
| Option | Description |
|---|---|
| ALIGNMENT-NPA | Non-precision XY assembly |
| ALIGNMENT-PA10 | XY assembly; 10 arc sec orthogonal |
| ALIGNMENT-PA5 | XY assembly; 5 arc sec orthogonal |
| HALAR | High-accuracy system – linear error correction for accuracy and repeatability |
| HALSF | High-accuracy system – improved straightness and flatness |