ACS LP Mechanical-Bearing Direct-Drive Rotary Stage

Description

Design Features

  • Integral pneumatic ER collet chuck
  • Clear aperture for product feed-through
  • Low inertia shaft for maximum acceleration
  • Integral rotary union
  • Ultra-low profile minimizes working height

Aerotech's ACS LP rotary stages with integrated ER collet chuck provide automated material handling capability for a wide range of materials and applications.

High Precision ER ColletACSLPAdv

The collet chuck on the ACS-100LP accepts an ER8 series collet, while the ACS-150LP uses an ER25 collet and the ACS-200LP uses an ER40 collet. These collets are readily available from machine tool component suppliers in sizes that support tube diameters from 0.5 mm to 30 mm. ER collets provide excellent run-out characteristics for applications requiring high-precision gripping of tubular material. The collet is retained with a threaded retaining nut that enables quick changeover, and is configured in a "fail-safe" normally-closed mode where full clamping force is applied when no air pressure is present.

Compact Package

The design of the ACS LP series direct-drive rotary stage was optimized to minimize stage height. The low profile of the stage reduces the effective working height of the system minimizing “stack-up” related errors.

Integral Rotary Union

Air is delivered to the collet or gripper assembly through an integral rotary union using a seal-less, frictionless design. This 100% noncontact rotary-union design ensures a lifetime of maintenance-free operation. The combination collet chuck and rotary union assembly also has significantly less friction and inertia than external assemblies created from discrete parts. This reduced inertia improves system performance by allowing higher peak acceleration and reducing position error during laser machining operations.

Brushless Direct-Drive

The ACS LP series utilizes direct-drive brushless motor technology to maximize positioning performance. Direct-drive technology is optimized for 24/7 production environments because there are no brushes to replace and no gear trains or belts to maintain. Direct drive also provides quicker acceleration and higher top speeds than gear or belt-driven mechanisms, which yields higher total overall throughput.

The low maintenance and high throughput characteristics of the ACS LP, coupled with the integral material handling capability, provide the lowest total cost of ownership when compared to component-level solutions.

Specifications

ACS LP Series Specifications

ModelACS100LPACS150LPACS200LP
Travel ±360° Continuous
Collet Option(1) ER8/MicroBore ER25 ER40
Aperture ER8/MicroBore 5 mm ER8, 0.9 MicroBore N/A N/A
ER25 N/A 16 mm N/A
ER40 N/A N/A 25 mm
Maximum Torque (Continuous) 0.64 N·m 2.36 N·m 5.99 N·m
Bus Voltage Up to 340 VDC
Max Speed(2) 1500 rpm 600 rpm 600 rpm
Accuracy(3) Uncalibrated 388 µrad (80 arc sec)
Calibrated 29.1 µrad (6 arc sec) 48.5 µrad (10 arc sec) 48.5 µrad (10 arc sec)
Repeatability(3) 14.6 µrad (3 arc sec) 19.4 µrad (4 arc sec) 19.4 µrad (4 arc sec)
Max Load(4) ER8/MicroBore 1.5 kg (Axial); 0.5 kg (Radial); 0.75 N·m (Moment)
ER25 10 kg (Axial); 5 kg (Radial); 6 N·m (Moment)
ER40 15 kg (Axial); 10 kg (Radial); 12 N·m (Moment)
Pin/Collet Runout(5) <25 µm
Tilt Error Motion 48.5 µrad (10 arc sec) 97 µrad (20 arc sec) 97 µrad (20 arc sec)
Inertia Unloaded 0.00038 kg·m2 0.00242 kg·m2 0.00843 kg·m2
Total Mass 2.0 kg 4.3 kg 7.6 kg
Finish Tabletop Hardcoat
Stage Black Anodize
  1. Collet chuck accepts Rego-Fix ER collets manufactured to DIN6499 specifications only.
  2. Maximum speed based on stage capability; maximum application velocity may be limited by system data rate, system resolution and load.
  3. Repeatability and accuracy are dependent on encoder resolution. To achieve the listed specifi cations, encoder resolution must be 0.36 arc sec or less.
  4. Maximum loads are mutually exclusive. Loading limits are due to the collet chuck mechanism. Contact Aerotech directly if part load requirement exceeds specifications.
  5. Measured TIR of precision gage pin chucked with an ultra-precision ER collet (DIN6499) 6 mm away from collet face with no load.
  6. Collet chuck mechanism is normally-closed. Collet mechanism requires air to open collet chuck. Air supply must be dry (0ºF dew point) oil-less air OR 99.99% pure nitrogen. Air or nitrogen must be filtered to 0.25 micron particle size or better.

ACS LP Maximum Speed for Encoder Option

Resolution-SpeedACS100LPACS150LPACS200LP
-AS/-X5/-X10/-X25 1500 rpm 600 rpm 600 rpm
-X50 800 rpm 300 rpm 300 rpm

Dimensions

  • ACS100LP
  • ACS150LP
  • ACS200LP

Ordering Information

ACS100LP Mechanical-Bearing Direct-Drive Rotary Collet Stage

Chuck Style (Required)

Option Description
-ER8 ER8 Ultra-Precision Collet
-ER8MB ER8 MIcro-Bore Collet

Feedback (Required)

Option Description
-E1 Incremental Encoder, 1 Vpp
-E2 Incremental Encoder, TTL, x5 Interpolation
-E3 Incremental Encoder, TTL, x10 Interpolation
-E4 Incremental Encoder, TTL, x25 Interpolation
-E5 Incremental Encoder, TTL, x50 Interpolation

Note: Digital output encoder signals are synthesized with a 16 MHz clock. Care must be taken to ensure that the encoder sample rate on the controller is at least 16 MHz or higher. Slower clock rates are available on request.

Wrench (Optional)

Option Description
-WR Wrench for Changing Collet

Metrology (Required)

Option Description
-PL1 Metrology, Uncalibrated with Performance Plots
-PL2 Metrology, Calibrated (HALAR) wtih Performance Plots

Motor Type (Required for ACS-xxxLP)

Option Description
-A Standard motor winding
-B Optional motor winding for ACS-150LP and ACS-200LP

Integration (Required)

Aerotech offers both standard and custom integration services to help you get your system fully operational as quickly as possible. The following standard integration options are available for this system. Please consult Aerotech if you are unsure what level of integration is required, or if you desire custom integration support with your system.
-TAS Integration - Test as system 
Testing, integration, and documentation of a group of components as a complete system that will be used together (ex: drive, controller, and stage). This includes parameter file generation, system tuning, and documentation of the system configuration.
-TAC Integration - Test as components 
Testing and integration of individual items as discrete components. This is typically used for spare parts, replacement parts, or items that will not be used or shipped together (ex: stage only). These components may or may not be part of a larger system

Accessories (To Be Ordered As Separate Line Item)

Option Description
Collet-ER8-CLTxx ER8 DIN6499AA Electropolished Collet, 0.5 mm to 5 mm part diameter sizes available
Collet-ER8MB-CLTxx ER8 DIN6499AA Electropolished Microbore Collet, 0.2 mm to 0.9 mm part diameter available
CGF Collet and Gripper Filtration Kit

ACS150LP Mechanical-Bearing Direct-Drive Rotary Collet Stage

Motor (Required)

Option Description
-A Low Current, -A Winding (-M1)
-B Low Voltage, -B Winding (-M2)

Feedback (Required)

Option Description
-E1 Incremental Encoder, 1 Vpp
-E2 Incremental Encoder, TTL, x5 Interpolation
-E3 Incremental Encoder, TTL, x10 Interpolation
-E4 Incremental Encoder, TTL, x25 Interpolation
-E5 Incremental Encoder, TTL, x50 Interpolation

Note: Digital output encoder signals are synthesized with a 16 MHz clock. Care must be taken to ensure that the encoder sample rate on the controller is at least 16 MHz or higher. Slower clock rates are available on request.

Rear Seal (Optional)

Option Description
-SL Rear Seal

Wrench (Optional)

Option Description
-WR Wrench for Changing Collet

Metrology (Required)

Option Description
-PL1 Metrology, Uncalibrated with Performance Plots
-PL2 Metrology, Calibrated (HALAR) wtih Performance Plots

Integration (Required)

Aerotech offers both standard and custom integration services to help you get your system fully operational as quickly as possible. The following standard integration options are available for this system. Please consult Aerotech if you are unsure what level of integration is required, or if you desire custom integration support with your system.
-TAS Integration - Test as system 
Testing, integration, and documentation of a group of components as a complete system that will be used together (ex: drive, controller, and stage). This includes parameter file generation, system tuning, and documentation of the system configuration.
-TAC Integration - Test as components 
Testing and integration of individual items as discrete components. This is typically used for spare parts, replacement parts, or items that will not be used or shipped together (ex: stage only). These components may or may not be part of a larger system

Accessories (To Be Ordered As Separate Line Item)

Option Description
Collet-ER25-CLTxx ER25 DIN6499AA Electropolished Collet, 0.5 mm to 15 mm part holding sizes available
CGF Collet and Gripper Filtration Kit

ACS200LP Mechanical-Bearing Direct-Drive Rotary Collet Stage

Motor (Required)

Option Description
-A Low Current, -A Winding (-M1)
-B Low Voltage, -B Winding (-M2)

Feedback (Required)

Option Description
-E1 Incremental Encoder, 1 Vpp
-E2 Incremental Encoder, TTL, x5 Interpolation
-E3 Incremental Encoder, TTL, x10 Interpolation
-E4 Incremental Encoder, TTL, x25 Interpolation
-E5 Incremental Encoder, TTL, x50 Interpolation

Note: Digital output encoder signals are synthesized with a 16 MHz clock. Care must be taken to ensure that the encoder sample rate on the controller is at least 16 MHz or higher. Slower clock rates are available on request.

Rear Seal (Optional)

Option Description
-SL Rear Seal

Wrench (Optional)

Option Description
-WR Wrench for Changing Collet

Metrology (Required)

Option Description
-PL1 Metrology, Uncalibrated with Performance Plots
-PL2 Metrology, Calibrated (HALAR) wtih Performance Plots

Integration (Required)

Aerotech offers both standard and custom integration services to help you get your system fully operational as quickly as possible. The following standard integration options are available for this system. Please consult Aerotech if you are unsure what level of integration is required, or if you desire custom integration support with your system.
-TAS Integration - Test as system 
Testing, integration, and documentation of a group of components as a complete system that will be used together (ex: drive, controller, and stage). This includes parameter file generation, system tuning, and documentation of the system configuration.
-TAC Integration - Test as components 
Testing and integration of individual items as discrete components. This is typically used for spare parts, replacement parts, or items that will not be used or shipped together (ex: stage only). These components may or may not be part of a larger system

Accessories (To Be Ordered As Separate Line Item)

Option Description
Collet-ER25-CLTxx ER25 DIN6499AA Electropolished Collet, 0.5 mm to 15 mm part holding sizes available
CGF Collet and Gripper Filtration Kit