Description

Design Features

• Integral pneumatic ER collet chuck or 3-jaw gripper

• Clear aperture for product feed-through

• Normally-closed or -open gripper options

• Low-inertia shaft for maximum acceleration

• Direct-drive brushless motor and encoder

• Integral frictionless rotary union

Aerotech's ACS series rotary stages with integrated ER collet chuck or 3-jaw gripper configuration provide automated material handling capability for a wide range of materials and applications.

High Precision ER Collet

The collet chuck on the ACS-150 accepts either ER25 or ER40 series collets. 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 enabling quick changeover. It is configured in a “fail-safe” normally closed mode where full clamping force is applied when no air pressure is present.

Flexible 3-Jaw Gripper

Both the ACS-150 and ACS-200 support three-jaw grippers with clear apertures for product feed-through. All gripper assemblies are configurable as either normally-open or normally-closed with various jaw strokes to support a wide range of material sizes. The gripper can be fitted with custom jaws for the handling of materials with non-round profiles such as square or hexagonal bar stock. The normally-open and -closed options also provide the ability to grip either the O.D. or I.D. of the material.

Integral Rotary Union

Air is delivered to the collet or gripper assembly through an integral rotary union. The 3-jaw grippers use a seal-based rotary union design while the ER collet option uses a seal-less, frictionless design. This 100% noncontact rotary union design ensures a lifetime of maintenance-free operation. The combination collet chuck or gripper and rotary union assembly also have 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

To maximize positioning performance the ACS series utilizes direct-drive brushless motor technology. Direct-drive technology is optimized for 24/7 production environments, as 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, high throughput characteristics of the ACS coupled with the integral material handling capability provide the lowest total cost of ownership when compared to component-level solutions.

Specifications

ACS Series Specifications

1. Collet chuck accepts Rego-Fix ER collets manufactured to DIN6499 specifications only.

2. Repeatability and accuracy are dependent on encoder resolution. To achieve the listed specifi cations, encoder resolution must be 1.2 arc sec or less.

3. Measured TIR of precision gage pin chucked with an ultra-precision ER collet (DIN6499) 6 mm away from collet face with no load.

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. Maximum speed based on stage capability; maximum application velocity may be limited by system data rate, system resolution and 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. With 3-jaw gripper, air or nitrogen should be filtered to 20 micron particle size or better.

ACS Series Specifications

1. Repeatability and accuracy are dependent on encoder resolution. To achieve the listed specifications, encoder resolution must be 1.2 arc sec or less.

2. Measured TIR of precision gage pin 10 mm away from grpper face with no load.

3. Maximum loads are mutually exclusive. Loading limits are due to the collet chuck mechanism. Contact Aerotech directly if part load requirement exceeds specifications.

4. Maximum speed based on stage capability; maximum application velocity may be limited by system data rate, system resolution, and load.

5. Collet chuck mechanism is normally-closed. Collet mechanism requires air to open collet chuck. Air supply must be dry (0º F dew point) oil-less air OR 99.99% pure nitrogen. Air or nitrogen must be filtered to 0.25 micron particle size or better. With 3-jaw gripper, air or nitrogen should be filtered to 20 micron particle size or better.

ACS Maximum Speeds for Encoder Option

Dimensions

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Ordering Information

ACS100 Mechanical-Bearing Direct-Drive Rotary Collet Stage

Stage Size (Required)

Chuck Style (Required)

Feedback (Required)

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)

Connector (Required)

Wrench (Optional)

Air Purge (Optional)

Metrology (Required)

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.

Accessories (To Be Ordered As Separate Line Item)

ACS150 Mechanical-Bearing Direct-Drive Rotary Collet Stage

Stage Size (Required)

Chuck Style (Required)

Feedback (Required)

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)

Wrench (Optional)

Metrology (Required)

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.

Accessories (To Be Ordered As Separate Line Item)

ACS200 Mechanical-Bearing Direct-Drive Rotary Collet Stage

Stage Size (Required)

Chuck Style (Required)

Feedback (Required)

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.

Metrology (Required)

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.

Accessories (To Be Ordered As Separate Line Item)