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

ALS25000 Specifications

ModelALS25010ALS25020ALS25030ALS25045ALS25060
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)
  1. 80 VDC bus limit with standard ribbon cable. Up to 320 VDC is available with round cables.
  2. Current values based on high performance (-P) magnet track.
  3. Maximum speed based on stage capability. Maximum application velocity may be limited by system data rate and system resolution.
  4. Maximum load based on bearing capability. Maximum application load may be limited by acceleration requirements.
  5. Available with Aerotech controllers.
  6. 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.
  • ALS25000-spec
  • ALS2500-spec2

Dimensions

  • ALS25000

Ordering Information

Ordering Example

ALS25 030 -M -10-S -LN30AS -NO -X-CMS

Ordering Options

SeriesTravel (mm)Mounting and Grid PatternMotor and Magnet TrackLinear EncoderLimitsOptions
ALS25 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

OptionDescription
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

OptionDescription
-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

OptionDescription
-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

OptionDescription
-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

OptionDescription
-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

OptionDescription
-NC Normally-closed end of travel limit switches (standard)
-NO Normally-open end of travel limit switches

Options

OptionDescription
-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)

OptionDescription
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